HomeMy WebLinkAboutGPA 05-06; AURA CIRCLE; PRESERVE MANAGEMENT PLAN; 2017-02-17-
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Aura Circle Project
Preserve Management Plan
Prepared for:
Pacific Legacy Homes
16870 W. Bernardo Drive, Suite 400
San Diego, CA 92 I 27
Prepared by:
HELIX Environmental Planning, Inc.
7578 El Cajon Boulevard
La Mesa, CA 91942
February 17, 2017
TABLE OF CONTENTS
Section
1.0 INTRODUCTION ................................................................................................................. 1
1.1 Purpose for Inclusion of The Preserve Area in The Habitat Management Plan ........... I
1.2 Preserve Manager ......................................................................................................... I
2.0 PRESERVE DESCRIPTION ................................................................................................. I
2.1 Geographical and Regional Setting .............................................................................. 1
2.2 Preserve Boundaries and Historic/Current Land Use ................................................... 2
2.3 Geology, Soils, and Hydrology .................................................................................... 2
2.4 Ownership and Legal Description ................................................................................ 3
2.5 Restrictive Covenant Compliance ................................................................................ 3
3.0 HABITAT AND SPECIES DESCRIPTION ......................................................................... 3 -3.1 Vegetation Conununities .............................................................................................. 3 -3.1.1 Native Grassland ............................................................................................... 4 -3.1.2 Diegan Coastal Sage Scrub (Including Disturbed) ........................................... 4
3.1.3 Non-Native Grassland ....................................................................................... 5
3.1.4 Non-Native Vegetation ..................................................................................... 5
,_ 3.1.5 Disturbed Habitat .............................................................................................. 5
3.1.6 Developed ......................................................................................................... 5
3.2 Plant Species ................................................................................................................. 6
• 3.3 Wildlife Species ............................................................................................................ 6
3.4 Wildlife Corridors and Linkages .................................................................................. 7
3.5 Fire History ................................................................................................................... 8
3.6 Threats .......................................................................................................................... 8
4.0 MANAGEMENT AND MONITORING .............................................................................. 9
4.1 Biological Goals and Tasks .......................................................................................... 9
4.1.1 General Habitat Monitoring .............................................................................. 9
4.1.2 Long-Term Habitat Management and Monitoring ......................................... 10
4.1.3 Long-Term Special Status Species Management and Monitoring ................. 11
4.2 Public Use Goals and Tasks ....................................................................................... 12
4.3 Fire Management ........................................................................................................ 13 -4.4 Constraints to Implementing ASMDS ........................................................................ 13
4.5 Potential Impacts of Implementing ASMDS .............................................................. 13
5.0 ADAPTIVE MANAGEMENT ............................................................................................ 13
6.0 ADMINISTRATION AND REPORTING .......................................................................... 15
6.1 Annual Reports and Preserve Management Plan ........................................................ 15
6.2 Data Management ....................................................................................................... 16
6.3 Communication and Coordination .............................................................................. 16
6.4 Funding ....................................................................................................................... 16
6.5 Operations and Staffing .............................................................................................. 16
7.0 REFERENCES .................................................................................................................... 17
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1.0 INTRODUCTION
I.I PURPOSE FOR INCLUSION OF THE PRESERVE AREA IN THE HABITAT
MANAGEMENT PLAN
The purpose of this Preserve Management Plan (PMP) is to provide long-term management,
monitoring, and reporting guidelines for approximately 9.45 acres of biological open space
associated with the Aura Circle Project (project) located in the City of Carlsbad (City),
California. The 9.45 acres of biological open space is herein referred to as the Aura Circle
Preserve (preserve). Implementation of the PMP will help ensure that the preserve is managed in
perpetuity consistent with the overarching reserve assembly requirements and management
directives of the regional Multiple Habitat Conservation Program (MHCP), Carlsbad Open Space
Management Plan (OSMP; Technology Associates International Corporation [TAIC] 2004), and
Carlsbad Habitat Management Plan (HMP; City of Carlsbad 2004).
Specifically, the PMP is intended to accomplish the following:
1.2
• Meet the requirements for environmental documentation to comply with state and federal
statutes and regulations;
• Identify required personnel qualifications for implementing management goals and
objectives;
• Serve as a budget planning aid for annual budget preparation;
• Provide an overview of the preserve's management goals and objectives, as well as
specific directives for the protection and management of native habitats and wildlife;
• Summarize existing data on the native habitats, plants, and wildlife which occur on or use
this property; and
• Outline appropriate public uses of the preserve and its resources.
PRESERVE MANAGER
The Preserve Manager has yet to be determined. The applicant will propose a qualified preserve
manager that is acceptable to the City.
2.0 PRESERVE DESCRIPTION
2.1 GEOGRAPHICAL AND REGIONAL SETTING
The approximately 9.45-acre Aura Circle preserve is located south of Tamarack Avenue and
west of El Camino Real within the City of Carlsbad (City), San Diego County, California
(Figure 1 ). It is further located within the Agua Hedionda land grant of the U.S. Geological
Survey 7 .5-minute San Luis Rey quadrangle map (Figure 2). The preserve lies between
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Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017
residential communities along Kelly Drive to the east and Avila Avenue to the west at the
terminus of Aura Circle (Figure 3). The preserve occurs within the boundaries of the adopted
Carlsbad HMP within Local Facilities Management Zone (LFMZ) 1 with the open space
designated as Proposed Hardline Conservation Area (Figure 4). The preserve is also located in
the Coastal Zone of the Carlsbad Local Coastal Program (LCP).
The bioregion that generally defines the area is influenced by a coastal Mediterranean climate.
The area's climate, coupled with coastal geological formations and land features, gives rise to an
array of habitat types and species that are unique to coastal southern California. Although past
agricultural practices and urbanization have resulted in the conversion of land within much of the
region, habitat blocks and linkages of undeveloped land occur amongst existing developments
that provide important habitat for plant and animal species that reside and migrate to and from
the area. Larger habitat blocks exist on steep-sloping land and in and around the three coastal
lagoons that occur within Carlsbad: Agua Hedionda Lagoon, Batiquitos Lagoon, and Buena
Vista Lagoon. Additional undeveloped areas occur on some of the higher-elevation inland
portions of Carlsbad that have not been subjected to intense agricultural practices or
development. Grasslands, coastal sage scrub, chaparral, riparian woodlands and forests, and
riverine, palustrine, and estuarine habitats all contribute to the overall biological value and
aesthetic appeal of the region.
2.2 PRESERVE BOUNDARIES AND HISTORIC/CURRENT LAND USE
The preserve occurs on the 15.06-acre Aura Circle Project property (Assessor's Parcel Number
f APN] 207-1004-800; Figure 4 ). The project will create 5.19 acres of Diegan coastal sage scrub
within the preserve in areas currently characterized by disturbed habitat with small portions of
non-native vegetation and developed land. The preserve is currently undeveloped and generally
characterized open space and gently sloping hillsides. General land use surrounding the
preserved is composed of residential developments. Vegetation in the preserve includes Diegan
coastal sage scrub (including disturbed), native grassland, non-native grassland, non-native
vegetation, disturbed habitat, and developed land
2.3 GEOLOGY, SOILS, AND HYDROLOGY
The site is generally characterized by two small ridgelines with gently sloping hillsides,
surrounded by areas of predominantly disturbed areas. The southern ridgeline is proposed for
development as part of the Aura Circle Project; the northern ridgeline is located within the
preserve. Elevation ranges from approximately 38 feet to 239 feet above mean sea level (ams!).
No natural drainage features or water bodies occur within the site. Three soil types occur on site
including Las Flores Loamy Fine Sand, 15 to 30 percent slopes, Las Flores Loam Fine Sand, 2 to
9 percent slopes, and Salinas Clay Loam, 2 to 9 percent slopes (USDA 2013).
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2.4 OWNERSHIP AND LEGAL DESCRIPTION
The owner of the property is Pacific Legacy Homes.:
Mr. Michael Graham
Pacific Legacy Homes
16870 W. Bernardo Drive, Suite 400
San Diego, CA 92127
2.5 RESTRICTIVE COVENANT COMPLIANCE
A Restrictive Covenant (RC) will be recorded over the preserve: The RC provides lists of
permitted and prohibited uses in the preserve, which will be consistent with this PMP. The
property owner and Preserve Manager will be responsible for monitoring the preserve to ensure
that Pacific Legacy Homes, adjacent landowners, and the public are not violating the conditions
of the RC.
3.0 HABITAT AND SPECIES DESCRIPTION
A general biological survey consisting of vegetation mapping and a general plant and animal
survey was conducted on January 18, 2016. Focused surveys for the coastal California
gnatcatcher (Polioptila californica californica) were conducted on February 19, February 26,
and March 10, 2016 (HELIX 2016a) and rare plant surveys were performed on April 11 and
June 22, 2016.
Nomenclature used in this report follows Baldwin et al. (2012) for scientific names of plants,
while common names follow the California Native Plant Society (CNPS 2016). Other
conventions used are Holland (1 986) and Oberbauer (2008) for vegetation communities,
Glassberg (2001) and Heath (2004) for butterflies; Crother (2012) for reptiles and amphibians,
American Ornithologist's Union (2016) for birds, and Baker et al. (2003) for mammals. Plant
species sensitivity status is from the CDFW Special Plant List (CDFW 2016a) and CNPS (2016).
Animal species sensitivity status is from the CDFW Special Animal list (CDFW 2016b).
3.1 VEGETATION COMMUNITIES
Vegetation communities or habitat types are classified in this report according to the Carlsbad
HMP, with further guidance from Holland (1986) and Oberbauer (2008) for vegetation
communities. Six vegetation communities or land use types were mapped within the preserve
during the January 18, 2016 general biological survey: native grassland, Diegan coastal sage
scrub (including disturbed), non-native grassland, non-native vegetation, disturbed habitat, and
developed land (Figure 5; Table 1). A brief description of each community is provided below.
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3.1.3 Non-natil'e Grassland
Non-native grassland typically supports a sparse to dense cover of annual grasses often
associated with numerous species of showy-flowered native annual forbs. This association
occurs on gradual slopes with deep, fine-textured, usually clay soils. Most of the annual,
introduced species that make up the majority of species and biomass within the non-native
grassland originated from the Mediterranean region, an area with a long history of agriculture
and a climate similar to California. These grasslands are common throughout San Diego County.
Typical species observed in this habitat on site include ripgut grass (Bronws diandrus), soft
chess (Bromus hordaceus), and barley (Hordeum murinum).
A total of 0.02 acre of non-native grassland occurs within the eastern portion of the preserve.
Dominant species include wild oat (Avena spp.). Diegan coastal sage scrub creation will occur
where the non-native grassland currently exists. Therefore, following restoration no non-native
grassland will be present within the preserve.
3.1.4 Non-Native Vegetation
Non-native vegetation is a category describing stands of naturalized trees or shrubs, many of
which are also used in ornamental landscaping. On site, this habitat consists of small stands of
Peruvian pepper tree (Schinus mo/le) and golden wattle (Acacia sp.), as well as carpets of
hottentot fig (Carpobrotus edulis) and slenderleaficeplant (Mesembryanthemum nodtflorum).
Non-native vegetation occupies 0.67 acres of the preserve, mostly along the western and eastern
boundaries. Diegan coastal sage scrub creation will occur where the non-native vegetation
currently exists. Therefore, following restoration no non-native vegetation will be present within
the preserve .
3.1.5 Disturbed Habitat
Disturbed habitat includes land that has little or no habitat value because it has been cleared of
vegetation for agricultural purposes or contains heavily compacted soils following disturbance
such as grading. Disturbed habitat on site includes heavily disturbed soils dominated by annual
non-native vegetation such as filaree (Erodium spp.), wild-oat, castor bean (Ricinus communis),
and mustard (Brassica sp.).
Approximately 4.0 acres of disturbed habitat occur within the preserve. Diegan coastal sage
scrub creation will occur where the disturbed habitat currently exists. Therefore, following
restoration no disturbed habitat will be present within the preserve.
3.1.6 Developed
Developed land is where permanent structures and/or pavement have been placed, which
prevents the growth of vegetation, or where landscaping is clearly tended and maintained.
Developed portions of the site consist of a concrete pad and landscaping located along the
western and northern boundaries adjacent to existing residential development.
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Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 5
Currently, approximately 0. 72 acre of the project site is occupied by developed land along the
western and northern boundaries where the site abuts residential development. Diegan coastal
sage scrub creation will occur where the developed land currently exists. Therefore, following
restoration no developed land will be present within the preserve.
3.2 PLANT SPECIES
A botanical inventory of the project site, including the preserve, was conducted in 2016. Plants
observed on site are listed in Appendix A. Special•status plant species with potential to occur are
included in Appendix C. No federal or state listed threatened or endangered plant species were
observed within the preserve. Two special status plant species were found within the project site:
small-flower bindweed (Convolvulus simulans) and ashy spike-moss (Selaginella cinerascens).
Listing or special status ranking in the species accounts below include federal/state, followed by
CNPS. and then MHCP/HMP coverage. if applicable.
Small-flowered morning-glory (Convolvulus simulans)
Listing:--/--; CNPS List 4.2
Distribution: Scattered locations from the foothills to the coast in southern California and Baja
California, Mexico. Species rare in southern California.
Habitat: Coastal clay areas in openings of chaparral, sage scrub, and grasslands
Status on site: Approximately 3,100 plants were observed within the northern and eastern
portions of the preserve, primarily within disturbed habitat (Figure 5).
Ashy spike-moss (Selaginella cinerascens)
Listing:--/--; CNPS List 4.1
Distribution: Orange and San Diego counties; northwestern Baja California, Mexico
Habitat: Flat mesas in coastal sage scrub and chaparral. A good indicator of lack of site
degradation, as it rarely inhabits disturbed soils.
Status on site: Found in 4 locations within disturbed Diegan coastal sage scrub within the
northern portion of the preserve (Figure 5).
These two species are not covered under the Carlsbad HMP, and thus do not require species-
based monitoring.
3.3 WILDLIFE SPECIES
Wildlife species observed on the project site, including the preserve are listed in Appendix B.
Special-status species with potential to occur in the preserve are included in Appendix C. One
federally listed species have been observed or detected within the study area: coastal California
gnatcatcher. One additional special status animal species, Cooper's hawk (Accipiter cooperii)
was also observed or detected within the project site. A brief description of each special status
animal species observed or detected within the project site is provided below. Listing or special
status ranking in the species accounts below includes federal/state followed by MHCP/HMP
coverage, if applicable.
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Coastal California gnatcatcher (Polioptila californica ca/ifornic:a)
Listing or Sensitivity: FT/SSC; MHCP/HMP Covered
Distribution: Historically occurred south of the Transverse Ranges and west of the Peninsular
Ranges, rarely north into Ventura County. Southern Los Angeles, Orange, western Riverside,
and San Diego counties south into Baja
Habitat(s): Diegan coastal sage scrub and other similar open scrub habitats in coastal areas, with
most populations occurring below 1,500 feet in elevation.
Status on site: Two pairs of gnatcatchers were observed within the project site during focused
surveys for the species (HELIX 2016a). One pair was observed nesting building along the
northern slope within the preserve (Figure 5) and a second pair was observed foraging along the
southern slope within the project's impact area.
Cooper's hawk (Accipiter cooperit)
Status: BCC/SSC; MHCP/HMP Covered
Distribution: Occurs year-round throughout the County's coastal slope where stands of trees are
present
Habitat(s): Oak groves, mature riparian woodlands, and eucalyptus stands or other mature
forests
Status on site: A single Cooper's hawk was observed flying over western portion of the
preserve. The preserve lacks suitable nesting habitat for the species and most likely provides
foraging habitat.
3.4 WILDLIFE CORRIDORS AND LINKAGES
Wildlife corridors connect othern1ise isolated pieces of habitat and allow movement or dispersal
of plants and animals. Local wildlife corridors allow access to resources such as food. water, and
shelter within the framework of their daily routine. For example, animals can use these corridors
to travel between their riparian breeding habitats and their upland burrowing habitats. Regional
corridors provide these functions over a larger scale and link two or more large habitat areas,
allowing the dispersal of organisms and the consequent mixing of genes between populations. A
corridor is a specific route that is used for the movement and migration of species, and may be
different from a linkage in that it represents a smaller or narrower avenue for movement. A
linkage is an area of land that supports or contributes to the long-term movement of animals and
genetic exchange by providing live-in habitat that connects to other habitat areas. Many linkages
occur as stepping-stone linkages that are comprised of a fragmented archipelago arrangement of
habitat over a linear distance.
Important corridors and linkages have been identified on a local and regional scale throughout
the MHCP and Multiple Species Conservation Program (MSCP) planning areas in San Diego
County. The planning objectives of most corridors and linkages in coastal San Diego County
include establishing a connection between the northern and southern regional populations of the
coastal California gnatcatcher, in addition to facilitating movement and connectivity of habitat
for large mammals and riparian bird species. As part of the MHCP, the Carlsbad HMP includes
an assemblage of HMP Cores, Linkages, and Special Resource Areas (SRA). with objectives to
establish a network of habitat for the conservation of wildlife movement functions, primarily for
birds and mammals.
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Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 7
The preserve is not is not part of a wildlife corridor area connected with other significant open
space areas in the City as evidenced by the development on all sides of the property. In addition,
the property is not part of the Core and Linkage Area in the Carlsbad HMP.
3.5 FIRE HISTORY
HELIX has no record of any fire occurring on the preserve.
3.6 THREATS
Non-Native Invasive Plant Species
Non-native and invasive plant species are the highest threat to the preserve. Species such as
hottentog fig, slender leaved iceplant, castor bean, Russian thistle (Salsola tragus), artichoke
thistle (Cynara cardunculus), fountain grass (Pennisetum setaceum), mustard (Brassica nigra),
and tocalote (Centaurea melitensis) were all observed in the preserve. Of these, hottentog fig,
iceplant, castor bean, Russian thistle, and artichoke thistle pose the greatest risk for long-term
management.
Unauthorized Access/Human Use
The second highest threat to the preserve is unauthorized access and human use. The preserve is
situated adjacent to areas that are regularly used by people. Increased human and pet access is
often a concern in preserve areas and can result in increased edge effects such as trampling of
vegetation, introduction of non-native species, unauthorized dumping, harassment of wildlife,
and other impacts. As part of the proposed Aura Circle Prqject, permanent fencing will be
installed along the entire southern boundary of the preserve where it abuts the proposed Aura
Circle project (Figure 6). Existing barriers occur along the northern, western, and eastern
portions of the preserve, where existing residential development occurs. The Aura Circle Project
also includes tubular steel fencing along the backyards of the lot and along the eastern side of
Aura Circle that will help limit human intrusion into the preserve. The preserve will be posted
with signs precluding access due to habitat sensitivity and prohibiting dumping. Residents shall
be educated in access restrictions, control of domestic animals, prevention of irrigation runoff,
and sensitivity of habitats on site. Further, the preserve will be inspected regularly by the
Preserve Manager to monitor for unauthorized human use.
Erosion
Erosion currently poses a moderate threat to the preserve, given that a large portion of the
preserve is currently occupied by disturbed habit which will be restored as Diegan coastal sage
scrub. Until vegetation has become established, supplemental erosion control measures will be in
place to help prevent erosion within the preserve. These may include, but are not limited to
organic matting, fiber rolls (straw wattles), and silt fencing. Erosion control measures will be
kept in place by the restoration contractor until the restoration area has met performance
standards and has been determined to no longer present an erosion threat, which will occur
before the Preserve Manager takes responsibility for that area.
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4.0 MANAGEMENT AND MONITORING
This section provides goals and tasks in the form of Area Specific Management Directives
(ASMDs) to direct management of and monitoring within this preserve. The goals and ASMDs
guide all management decisions until the plan is revised and updated. Because management and
monitoring are interdependent, they are discussed together. Preserve management and
implementation of ASMDs will be the responsibility of the Preserve Manager. The management
and monitoring tasks prescribed for this preserve are detailed below.
The preserve includes 5.19 acres of Diegan coastal sage scrub restoration, which is required as
habitat mitigation for the Aura Circle Project (Figure 7). The restoration, including five years of
performance monitoring, is the responsibility of Pacific Legacy Homes and its contractors. The
Diegan Coastal Sage Scrub Restoration Plan for the Aura Circle Project (2016b) details that
mitigation implementation and maintenance, monitoring, and reporting requirements during the
5-year maintenance and monitoring period of the restoration effort. The 5.19-acre restoration
area will not fall under management of this PMP nor v.ill the restoration maintenance and
monitoring be included in the PAR until after it has been fully restored and its success criteria
are met. This should happen at the end of the five-year restoration period, which is expected to
be in year 2022. Funding for the restoration effort will be provided by Pacific Legacy Homes
W1der a separate contract and funding mechanism than the endowment funding for the Preserve
management.
4.1 BIOLOGICAL GOALS AND TASKS
4.1.1 General Habitat Monitoring
Goal 1: Monitor health of habitat within the presenre.
Objective 1.1: Implement a vegetation monitoring program. Determine baseline vegetation
structure and composition. Uve baseline condition and long-term monitoring results to determine
changes in ve!{etation communities over time and develop management policies.
ASMD 1.1
A vegetation monitoring protocol will be conducted during the first year of long-term
management, and within the preserve every five years using the following methodology or other
suitable method acceptable to the City:
1. Vegetation will be mapped on a high quality 1" = 400' scale aerial image and will be
updated using the most current vegetation classification system for San Diego County. At
this time, it is anticipated that the classification system prepared by Sawyer, Keeler-Wolf
and Evens will be used in the future (2009). This mapping will be verified by ground-
truthing. A minimum mapping W1it of 0.25 acre will be used. The final mapping will be
digitized and uploaded into a GIS database.
2. At least four photo-documentation stations will be mapped on an aerial photo using
Global Positioning Satellite (GPS) equipment. These locations will be selected to capture
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Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17. 2017
large areas of contiguous habitat to allow for monitoring of visual changes in habitat
quality and quantity, and will be utilized at least on an annual basis.
3. Four (4) permanent IO meter (m) x 10 m sample locations will be established
(i.e., permanently mapped using OPS equipment). At each location, the five dominant
shrub and five dominant herbaceous species will be identified, and the percent cover of
each species and its relative abundance based on a visual estimate will be recorded.
The preserve will be visually inspected for changes in non-native cover, pest infestations, and
overall vigor of the habitat communities during regular maintenance and surveying activities. If
substantial changes that could result in degradation of the habitat values are noted, the area will
be monitored more closely until it has stabilized naturally or as a result of implemented
management measures.
4.1.2 Long-Term Habitat Management and Monitoring
Goal 2: Provide for the continued health and persistence of native vegetation communities
onsite and provide habitat for species that use these areas.
Objective 2.1: Control access to the site to provide for the continued health and persistence of
native vegetation communities onsite and to provide habitat for species that use these areas.
Threat 2.1 -Unauthorized Access
Currently, the southern portion of the site is open to public access. Residential uses adjacent to
the preserve occur on all sides. Future residential development of the parcels adjacent to the
preserve will result in the potential for an increase in foot traffic. This increase in foot traffic can
result in direct impacts to native habitat from unauthorized trails, trash, and unauthorized
dumping.
ASMD 2.1
• Visual inspection of the preserve for unauthorized access, fencing and signage damage,
and vandalism shall be completed by the Preserve Manager on a regular basis (at least
monthly). Fencing of the preserve shall be kept in place consistent with the fencing plan
(Figure 6). Fencing and signage that is damaged and no longer effective to control access
and notify the public shall be replaced. Illegal trespass, vagrant use, vandalism, and other
illegal activities shall be reported to the Carlsbad Police Department.
Objective 2. 2: Control non-native plant species to provide for the continued health and
persistence of native vegetation communities onsite and to provide habitat for species that use
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Threat 2.2 -Non-Native Plant Species
Non-native invasive plant species are a particularly significant threat to natural communities
throughout southern California, and are prevalent within the preserve. Hottentog fig, iceplant,
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castor bean, Russian thistle, and artichoke thistle are species of particular concern m the
preserve.
ASMD2.2
• Non-native species considered to be highly invasive by the California Invasive Plant
Council (Cal-IPC High and Moderate category species; Appendix D) shall be targeted for
eradication within preserve boundaries by the Preserve Manager. Eradication may
include removal by hand, weed whip, mm.ving or, if necessary, herbicides. The least toxic
method that effectively removes the weeds should be used. Eradication of established
invasive species may require several herbicide applications per year for several years, and
shall be conducted at the appropriate time of year for the targeted species based on that
species' biology. Herbicides may only be applied by a licensed pesticide applicator under
the supervision of a qualified biologist.
• New infestations of invasive non-native plants shall be monitored for and treated hvice a
year within the rainy season, when non-natives are most prevalent. Eradication of
established invasive plants may require several herbicide applications per year for several
years, and shall be conducted at the appropriate time of year for the targeted species
based on that species' biology.
• Trash removal will be completed twice a year by the Preserve Manager during non-native
plant species treatment events. Trash shall be disposed of properly at off-site locations.
ONective 2.3: Control erosion
Threat 2.3 -Erosion
Unchecked erosion can result in degradation of upland habitats through elimination of topsoil
and sedimentation. Erosion is often the result of uncontrolled access that results in unauthorized
trails. Excessive erosion can also occur following fire events that eliminate vegetative cover.
ASMD2.3
• Excessive erosion within the preserve will be addressed through Best Management
Practices (BMP) such as use of straw wattles with biodegradable netting. rock water
diversion structures in upland areas, reseeding bare areas, and other measures as
appropriate. BMPs that maximize the use of native material should be selected whenever
feasible.
• Controlling access to the preserve, as outlined in the Unauthorized Access section above.
and through public education will help to minimize erosion from unauthorized foot trails.
4.1.3 Long-Term Special Status Species Management and Monitoring
Objective 3.1: Implement management and monitoring to ensure the persistence of !.pecial status
plants and animals on site, and reduce or eliminate threats to the species.
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Threat 3.1 -Non-Native Plant Species, Erosion, Unauthorized Access
ASMD 3.1
• Conduct regular (at least monthly) patrols to protect sensitive species habitat from human
impacts as described in Section 4.1.2.
• Conduct vegetation monitoring pursuant to Section 4.1.1.
• Remove non-native plant species that degrade sensitive species habitat consistent with
Section 4.1.2. This habitat management will benefit sensitive species occurring on site.
• Avoid activities that may disturb special status species during the breeding season
(February 15 through August 31), e.g., non-native plant removal that involves gas-
powered machinery such as chainsaws and weed whippers
• Conduct surveys and generate GIS data for the location and distribution of coastal
California gnatcatcher within the preserve. Surveys shall be conducted by a permitted
biologist and meet current protocol (three surveys for the coastal California gnatcatcher;
USFWS 1997) and be conducted every three years.
4.2 PUBLIC USE GOALS AND TASKS
Goal 3: Limit public access and use in order to be compatible with the conservation goals
and obligations of the OSMP, HMP, and MHCP, while providing public outreach and
education on the importance of the preserve.
The preserve is not identified for recreational use and does not include any authorized trails;
therefore, there will be no public use except as specified below.
ASMD
• The Preserve Manager will patrol and enforce access rules and regulations on a regular
basis (at least monthly).
• The Preserve Manager will allow access to the preserve for science, research, and
volunteer habitat management (trash removal. invasive plant removal), as long as these
activities do not adversely affect the preserve.
• The Preserve Manager will post appropriate signage. Each sign will identify that the
property is protected habitat, provide contact information, a list of illegal activities, and
other pertinent information (see Section 4.1.2).
• The Preserve Manager will remove debris and trash within the preserve (see
Section 4.1.2).
• The Preserve Manager will work with the end user in developing a public outreach and
education program for the adjacent use.
HELIX Ennmn,....PM,Wlilg--------------------------------
Preserve Management Plan for the Aura Circle Preserva I PLH-01 I February 17, 2017 12
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4.3 FIRE MANAGEMENT
Protecting human life and safety is the first priority of every fire management activity. This is the
responsibility of the City of Carlsbad fire department. It is expected that the fire department will
suppress 100 percent of all unplanned wildland fires, regardless of ignition source, to the
smallest size possible, protecting preserved habitat and adjacent property. Wildland fire is not a
substantial threat to the preserve based on its small size and urban location, and as evidenced by
the lack of fire history on site.
Brush management is anticipated to reduce the fire risk to the proposed development. Monitoring
and maintenance related to fire management are expected to be infrequent but will be conducted
on an asMneeded basis. Through coordination with the Aura Circle HOA and Fire Marshal, all
exotic plant species as well as woody perennials (including native species) will be removed from
the brush management areas (located outside the preserve). The Aura Circle Project is required
to install low-fuel plants in a JO-foot wide section along the north property line (Figure 7). The
purpose of this JO-foot wide special planting zone is to reduce the risk of fire spreading to the
adjacent, off-site structures down-slope to the north. The special planting zone will not require
on-going brush management/maintenance and will contain selected low-fuel Diegan coastal sage
scrub habitat plants as recommended in the Diegan Coastal Sage Scrub Restoration Plan
(HELIX 2016b).
4.4 CONSTRAINTS TO IMPLEMENTING ASMDS
There are no significant constraints to management. The preserve is small m size and easily
accessible.
4.5 POTENTIAL IMPACTS OF IMPLEMENTING ASMDs
There is the potential for temporary adverse impacts to habitats and species as part of the overall
management of the preserve. Specific examples include incidental impacts to native plant species
during non-native plant removal efforts, potential for harassment of nesting bird species during
non-native plant removal, and survey efforts. These impacts will be avoided and/or minimized
by the ASMD's noted above, and the activities associated with these impacts are anticipated to
have a net long-term benefit to the habitat and sensitive species within the preserve.
5.0 ADAPTIVE MANAGEMENT
Goal 4: Evaluate results and adjust management appropriately to meet the PMP goals and
the City's commitment to consenation goals of the HMP/MHCP.
Objective 4.1: Ensure that, through the monitoring and reporting process, results of
management are evaluated and management is adjusted appropriately to meet the PMP goals
and the City's commitment to the conservation goals of the HMPIMHCP.
The term adaptive management was adopted by Holling (1978) for natural resource
management. who described adaptive management as an interactive process that not only
HELIX ----------------------------------Preserve Management Plan for the Aura Circle Preserve I PLH-01 I February 17, 2017 13
reduces but also benefits from uncertainty. Adaptive management includes steps that may be
involved in a long-term adaptive implementation program, including opportunistic learning,
management, monitoring, and directing the results of analysis and assessment back into the
program through decision makers. It is important that the PMP incorporate the flexibility to
change implementation strategies after initial startup. The PMP is intended to be flexible enough
to develop adaptive management strategies that will facilitate and improve the decision-making
process for operating the conservation program of the PMP as well as provide for informative
decision-making. The PMP is also intended to be flexible enough to incorporate management
and monitoring methods provided by the regional management and monitoring group that would
be appropriate for the preserve.
Adaptive management relies on monitoring efforts such as those outlined in Section 4 above to
detect changes in species, habitats, and/or threats. Linking the monitoring program with adaptive
management actions will inform preserve managers of the status of target species, natural
communities, and essential ecological processes, as well as the effectiveness of management
actions in a manner that provides data to allow informed management actions and decisions.
When change is detected, the Preserve Manager assesses the information and responds by
initiating, modifying, or even ending a particular management strategy, if necessary. An
important component of implementing the management measures described above will include
evaluating data from monitoring activities to determine whether trends in threats are part of a
natural cycle of fluctuation or are anthropogenic. If there is a substantial decline in native species
compared to the baseline ( e.g., greater presence of invasive non-native plants) or other apparent
threats to habitat conditions are observed, remedial measures will be evaluated with the City and
implemented on an as-needed basis, based on the best available science. Adaptive management
measures shall be limited to funds available for adaptive management as detailed in the Property
Analysis Record (PAR).
ASMD 4.1
• Adaptive Management Measures -The need to implement adaptive management
measures pertaining to non-native species control, unauthorized access/human use, and
erosion will be determined during the quarterly site visits. Adaptive management
measures shall be implemented under the direction of the Preserve Manager, as-needed
and as funding is available.
Modify Management and Coordinate with Regional Efforts -Continue to learn and
modify management approaches by testing assumptions through purposeful monitoring
and coordinating with local and regional monitoring and management entities, such as the
Carlsbad HMP Preserve Steward and San Diego Management and Monitoring Program.
Five-Year PMP Update -Annually assess the need for each management strategy, and
update this PMP every five years as appropriate to meet the commitment to Carlsbad
HMP conservation goals.
HELIX Ennmnmenra,f'llnri.l9--------------------------------
Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 14
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6.0 ADMINISTRATION AND REPORTING
This section addresses the operation and maintenance of the PMP, including funding and
staffing, and reporting.
6.1 ANNUAL REPORTS AND PRESERVE MANAGEMENT PLAN
The PMP will be implemented upon completion of the habitat restoration efforts for the Aura
Circle Project, which is anticipated to be 2022, although some management is anticipated to start
in 2017. An annual report summarizing the status of the preserve, monitoring survey results, and
all major management tasks will be prepared and provided to the City of Carlsbad following the
first year of management and annually thereafter. The report shall discuss the previous year's
management and monitoring activities as well as management/monitoring anticipated in the
upcoming year. It shall provide a concise and complete summary of management and monitoring
methods, identify new management issues, address management issues raised in the previous
year's report, report on the success or failure of management approaches (based on monitoring),
include a map with any occWTences of special status species on site, and every fifth year it shall
include updated mapping of vegetation and sensitive species. Photos from the photo monitoring
stations shall be attached to the report.
The report shall also outline appropriate remedial measures for those approaches not yielding
satisfactory results. It shall include a summary of changes from baseline or previous year
conditions, including an assessment of the overall health of vegetation communities in the
preserve and any changes in health or distribution of special status plant or animal populations,
and any areas of increased trespass or dumping. Any changes will be documented on a preserve
map. The report shall also address the need for any adaptive management resulting from
previous monitoring and provide a methodology for measuring the success of any new or
modified maintenance and/or monitoring measures. The report will also provide a financial
swnmary describing expenditures for the year, and the status of the endowment.
The PMP shall be updated every five years by the Preserve Manager, based on data collected
during the annual reporting efforts, including photo documentation, and the best available
science. The update should review any changes in site conditions, management priorities, and
adaptive management strategies. Additionally, management strategies may evolve, or the
property could be reviewed within the context of ongoing regional planning efforts that may
warrant revisions to the PMP. Implementation ofadaptivc management strategies will be limited
to funds available in the PAR.
The annual report will summarize management of the annual budget and costs associated with
one-time and ongoing management tasks, with the expectation that there will be year to year
variability of management costs based on management needs for any given year. A discussion of
projected versus actual costs, and an accounting of the endowment including the original
endowment amount, current status of the endowment, interest earned, and projected and actual
annual costs will also be provided.
HELIX ~----------------------------------Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 IS
6.2 DATA MANAGEMENT
Vegetation, sensitive resource data, and non-native species mapping will be maintained in a
digital (GIS) format, and will be provided in digital format to the City of Carlsbad annually
unless there has been no change from the previous year, but at least every five years. During
years with no change, the City shall be notified of this and that no GIS will be provided for that
year. Photo documentation of the site will be maintained digitally, and will also be provided to
the City every five years, if not already submitted with annual reports.
6.3 COMMUNICATION AND COORDINATION
The Preserve Manager will coordinate with the City of Carlsbad, the Carlsbad HMP Preserve
Steward, other preserve managers, the resource agencies, and the general public. The Preserve
Manager will participate in the annual public workshop for HMP implementation hosted by the
City of Carlsbad. No other public training is needed since the preserve is not located in a
residential area.
6.4 FUNDING
Funding for implementation of the PMP will be provided through an applicant-funded
endo\VITlent that is based on a City-approved Property Analysis Record. The endowment will be
transferred by the applicant to the HOA, which will assume ownership of the preserve property,
and responsibility for contracting with and overseeing the management performed by the
Preserve Manager. The funding agreement will be approved by the City.
6.5 OPERATIONS AND STAFFING
The preserve manager has yet to be determined.
HELIX En"1ron,,,,,..,~,------------------------------
Preserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 16
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7.0 REFERENCES
American Ornithologists' Union (AOU). 2016. AOU Checklist of North and Middle American
Birds (online checklist). URL: http://checklist.aou.org/taxa/
Baker. R.J .. L.C. Bradley, R.D. Bradley. J.W. Dragoo, M.D. Engstrom, R.S. Hoffmann,
C.A. Jones, F. Reid, D.W. Rice, and C. Jones. 2003. Revised checklist of North
American mammals north of Mexico. Occasional Papers of the Museum, Texas Tech
University 223.
Baldwin, B.G., Goldman, D.H., Keil D.J., Patterson R., Rosatti, T.J. and Wilken, D.H. (eds.).
2012. The Jepson Manual: Vascular Plants of California. Second edition. Berkeley, CA:
University of California Press. 1568 pp.
California Department of Fish and Wildlife (CDFW). 2016a. Special Vascular Plants,
Bryophytes, and Licens List. California Natural Diversity Database. April. URL:
https://nrm.df g.ca.gov /FileHandler.ashx?DocumentID= 109383&inline
2016b Special Animal List. California Natural Diversity Database. April. URL:
https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID-J 09406&inline
California Native Plant Society (CNPS). 2016. Inventory of Rare and Endangered Plants.
Internet searchable database. URL: http://V1rww.rareplants.cnps.org/
City of Carlsbad (City). 2004. Habitat Management Plan for Natural Communities in the City of
Carlsbad. November.
Crother, Brian I. 2012. The Scientific and Standard English and French Names of Amphibians
and Reptiles of North America North of Mexico, with Comments Regarding Confidence
in our Understanding. Seventh Editions. Committee on Standard English and Scientific
Names. SSAR Herpetological Circular No. 39.
Glassberg, J. 2001. Butterflies through Binoculars. The West. A Field Guide to the Butterflies of
Western North America. Oxford University Press. New York.
Heath, Fred. 2004. An Introduction to Southern California Butterflies. Mountain Press
Publishing Company. Missoula, Montana.
HELIX Environmental Planning, Inc. (HELIX). 2016a. Coastal California Gnatcatcher
(Polioptila cal(fornica californica) Survey Report for the Aura Circle Project. April 20.
2016b Aura Circle Project Diegan Coastal Sage Scrub Restoration Plan. September.
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P,eserve Management Plan for the Aura Circle Preserve I PLH-011 February 17, 2017 17
Holland RF. 1986. Preliminary Descriptions of the Terrestrial Natural Communities of
California. Nongame-Heritage Program, State of California, Department of Fish and
Game, Sacramento, 156 pp.
Holling, C.S. (ed). 1978. Adaptive Environmental Management and Assessment. Wiley,
Chichester.
Oberbauer, T .. Kelly, M., and Buegge, J. 2008. Vegetation Communities of San Diego County.
Based on ·'Preliminary Descriptions of the Terrestrial Natural Communities of
California," R.F. Holland, 1986. 73 pp.
Sawyer, John 0., Todd Keeler-Wolf and Julie M Evens. 2009. A Manual of California
Vegetation, Second Edition. Online version at http://vegetation.cnps.org/
TAIC 2004. City of Carlsbad Open Space Management Plan. Technology Associates
International Corporation in association with the Center for Natural Lands Management.
May 2004.
United States Department of Agriculture (USDA). 2013. Web Soil Survey. Natural Resources
Conservation Service. Online. http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm.
U.S. Fish and Wildlife Service (USFWS). I 997. Coastal California gnatcatcher (Polioptila
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californica cal{fornica) Presence/ Absence Survey Guidelines. August 6. "'
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TAXON
Adoxaceae
Agavaceae
Aizoaceae
Amaranthaceae
Anacardiaceae
Apiaceae
Apocynaceae
Araceae
Araliaceae
Arecaceae
Asparagaceae
Asphodelaceae
Asteraceae
Appendix A
PLANT SPECIES OBSERVED
AURA CIRCLE
SCIENTIFIC NAME
Sambucus nigra
Chlorogalum parviflorum
Yucca aloifolia*
Aptenia cordifolia*
Carpobrotus edulis*
Mesemhryanthemum nodiflorum*
Amaranthus albus*
Salsa/a tragus*
Malosma laurina
Rhus integrifolia
Schinus mo/le*
Schinus terebinthifolius*
Apiastrum angusf!folium
Daucus pusillus
Foeniculum vulgare*
Nerium oleander*
Zantedeschia aethiopica*
Hedera sp. *
Syagrus romanzofjiana
Washingtonia robusta*
Agave attenuata *
Asparagus asparagoides*
Aloe maculata*
Artemisia californica
Baccharis pilularis
Centaurea melitensis*
Corethro?;Yne filagin{folia
Cynara cardunculus*
Deinandra fasciculala
Dimorphotheca sp. *
Encelia californica
Glebionis coronaria*
Hazardia squarrosa
Hedypnois cretica*
Jsocoma menziesii
Lactuca serriola*
Logfia gallica
A-1
COMMON NAME
black elderberry
smallflower soap plant
aloe yucca
dew plant
hottentot fig
slender leaved iceplant
white tumbleweed
Russian thistle
Laurel sumac
lemonade berry
Peruvian pepper tree
Brazilian pepper tree
wild celery
American wild carrot
fennel
oleander
Callalily
ivy
Queen palm
Mexican fan palm
lion's tail
African asparagus fern
aloe
California sagebrush
coyote brush
tocalote
common sandaster
artichoke thistle
fascicled tarplant
African daisy
California encelia
crown daisy
sawtooth goldenbush
crete weed
Menzies' goldenbush
prickly lettuce
narrowleaf cottonrose
TAXON
Asteraceae
Bignoniaceae
Boraginaceae
Brassicaceae
Cactaceae
Chenopodiaceae
Cistaceac
Convolvulaceae
Crassulaceae
Cucurbitaceae
Euphorbiaceae
Fabaceae
Geraniaceae
lridaceae
Lamiaceae
Lauraceae
Liliaceae
Malvaceae
Myrsinaceae
Appendix A
PLANT SPECIES OBSERVED
AURA CIRCLE
SCIENTIFIC NAME
Pseudognaphalium sp.
Senecio vulgaris*
Sonchus sp. *
Stephanomeria virgata
Stylocline sp.
Xanthium strumarium
Tecoma capensis*
Cryptantha sp.
Brassica nigra*
Raphanus sativus *
Cylindropuntia prolifera
Opunlia ficus-indica*
Opuntia littoralis
Chenopodium calij0rnicum
Chenopodium murale*
Cistus sp. *
Calystegia macrostegia
Convulvulus simulanst
Crassula connata
Crassula ovata*
Marah macrocarpus
Croton setigerus
Euphorbia pep/us*
Ricinus communis*
Acacia longifolia*
Medicago polymorpha *
Melilotus indicus*
Erodium botrys*
Erodium cicutarium*
Sisyrinchium helium
Rosmarinus officinalis *
Salvia mellifera
Stachys sp.
Persea americana*
Calochortus splendens
Malva parviflora *
Lysimachia arvensis*
A-2
COMMON NAME
cudweed
common groundsel
sow thistle
rod wirelettuce
neststraw
cocklebur
cape honeysuckle
popcorn flower
black mustard
wild radish
coastal cholla
Indian-fig
coastal prickly pear
California goosefoot
nettle leaf goosefoot
rockrose
Island morning glory
small flowered morning glory
pigmy weed
jade plant
wild cucumber
dove weed
petty spurge
castor-bean
golden wattle
bur clover
annul yellow sweetclover
broad leaf filaree
red stemmed filaree
blue eyed grass
rosemary
black sage
hedge nettle
avocado
splendid mariposa lily
cheeseweed mallow
scarlet pimpernel
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-Appendix A
PLANT SPECIES OBSERVED -AURA CIRCLE -TAXON SCIENTIFIC NAME COMMON NAME --Myrtaceae Callistemon citrinus* crimson bottlebrush
Eucalyptus sp. * eucalyptus -Nyctaginaceae Abronia sp. verbena -Mirabilis laevis desert wishbone bush -Onagraceae Epilobium canum California fushia
Oxalidaceae Oxalis pes-caprae * Bermuda buttercup
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Phrymaceae Mimulus aurantiacus sticky monkeyflower -Pinaceae Pinus sp. * pme -Plantaginaceae Antirrhinum nuttallianum Nuttall's snapdragon -Nuttallanthus texanus blue toadflax
Plumbaginaceae Limonium californicum* California sealavender -Poaceae Arundo donax* giant reed -Avena sp.* oats -Brachypodium distachyon* purple falsebrome
Bromus diandrus * ripgut grass -Bromus hordeaceus * soft chess -Brom us madritensis ssp. rubens * foxtail chess -Festuca myuros* rattail grass
Festuca perennis* Italian rye grasss
Horde um sp. * barley -Melica imperfecta California melic -Pennisetum setaceum * fountain grass
• Stipa lepida foothill needlegrass
Stipa pulchra purple needlegrass
Polygonaceae Eriogonumfasciculatum California buckwheat .. Rosaceae Heteromeles arbutifolia toyon
Rubiaceae Galium aparine common bedstraw
Scrophulariaceae Afyoporum laelum * Ngaio tree
Selaginellaceae Selaginella cinerascenst ashy spike moss
Solanaceae Nicotiana glauca* tree tobacco .. Solanum nigrum* black nightshade
Strelitziaceae Strelitzia nicolai* bird-of-paradise tree
Themidaceae Dichelostemma capitatum blue dicks -Tropaeolaceae Tropaeolum majus* nasturtium -Urticaceae Urtica urens* dwarf nettle
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*Non-native species
tSensitive Species
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A-4 --
TAXON
Appendix B
ANIMAL SPECIES OBSERVED OR DETECTED
AURA CIRCLE
SCIENTIFIC NAME COMMON NAME
INVERTEBRATES
Order
Lepidoptera
VERTEBRATES
Reptiles
Order
Squamata
Birds
Order
Accipitrifonnes
Apodiformes
Columbiformes
Cuculiformes
Falconiformes
Passeriformes
Family
Nymphalidae
Pieridae
Family
Phrynosomatidae
Family
Accipitridae
Trochilidae
Columbidae
Cuculidae
Falconidae
Aegithalidae
Bombycillidae
Corvidae
Emberizidae
Nymphalis antiopa
Vanessa cardui
Anthocharis sara sara
Pontia sisymbrii
Sceloporus occidentalis
Uta stanshuriana
Accipiter cooperiit
Buteo jamaicensis
Buteo lineatus
Calypte anna
Sela~phorus sasint
Columba livia
Zenaida macroura
Geococcyx calffornianus
Falco !.parverius
Psaltriparus minirnus
Bombycilla cedrorum
Aphelocoma californica
Corvus brachyrhynchos
Melospiza melodia
A1elozone crissalis
Pipilo rnaculatus
B-1
mourning cloak
painted lady
Pacific Sara orangetip
spring white
western fence lizard
common side-blotched lizard
Cooper's Hawk
Red-tailed Hawk
Red-shouldered Hawk
Anna's Hummingbird
Allen's Hummingbird
Rock Pigeon
Mourning Dove
Greater Roadrunner
American Kestrel
Bushtit
Cedar Waxwing
Western Scrub-Jay
American Crow
Song Sparrow
California Towhee
Spotted Towhee
TAXON
Birds (continued)
Order
Passeriformes
Piciformes
Mammals
Order
Lagomorpha
Rodentia
tSensitive Species
AppeodixB
ANIMAL SPECIES OBSERVED OR DETECTED
AURA CIRCLE
SCIENTIFIC NAME COMMON NAME
Family
Emberizidae Zonotrichia leucophrys White-crowned Sparrow
Haemorhous mexicanus House Finch
Fringillidae
Mimidae Mimus polyglottos Northern Mockingbird
Parulidae Oreothlypis celata Orange-crowned Warbler
Setophaga coronata Yellow-rumped Warbler
Sylviidae Polioptila calif<Jrnica Coastal California Gnatcatcher
californicat
Troglodytidae Thryomanes bewickii Bewick's Wren
Troglodytes aedon House Wren
Tyrannidae Sayornis nigricans Black Phoebe
Sayornis saya Say's Phoebe
Tyrannus vociferans Cassin's Kingbird
Picidae Picoides nuttallii Nuttall's Woodpecker
Family
Leporidae Sylvilagus audubonii desert cottontail
Sciuridae Spermophilus beecheyi California ground squirrel
B-2
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Appendix C (cont.)
Special-Status Species With Potential to Occur1
Common Name Species Name Status2 Habit. Ecoloszv and Life History Potential to Occur"
Plants (cont.)
Orcutt brodiaea Brodiaea orcultii --/--Small bulbiferous herb. Occurs Low. Vernal pool habitat does
CRPR 1B.1 only on clay soils in vernally moist not occur on the site.
environments, usually near vernal
pools but occasionally near
streams. Elevation range 0-1500m.
Orcutt's Chorizanthe FE/SE Occurs in closed cone coniferous Moderate. Suitable habitat
spineflower orcuttiana CRPR lB.l forest, maritime chaparral, and occurs on the site. Species
MHCPNE coastal scrub. Known from only would have been observed if
Carlsbad NE three occurrences in Encinitas and present.
Point Loma.
Palmer's Harpagonella --/--Occurs in chaparral, coastal sage Moderate. Suitable habitat
grapplinghook palmeri CRPR4.2 scrub, and grasslands on clay soils. occurs on the site. Species
Range includes southern would have been observed if
California from Los Angeles present.
County southward, Arizona, and
northern Baja.
Robinson's Lepidium virginicum --/--This annual herb grows in Moderate. Suitable habitat
pepper-grass var. robinsonii CRPR4.3 openings in chaparral and sage occurs on the site. Species
scrub at the coastal and foothill would have been observed if
elevations. Typically observed in present.
relatively dry, exposed locales
rather than beneath a shrub canopy
or along creeks.
C-2
Appendix C ( cont.)
Special-Status Species With Potential to Occur1
CommonName I Species Name I Status" I Habit, Ecolo!!V and Life Historv I Potential to Occur' I
Animals
Invertebrates
Hermes copper Lycaena hermes FC/--Inhabits southern mixed chaparral Low. Host plant was not
Carlsbad NE and coastal sage scrub in more observed during surveys
inland areas with mature conducted in 2016.
specimens of its larval host plant,
spiny redberry (Rhamnus crocea).
Quino Euphydryas editha FE/--Primary larval host plants in San Low. Larval host plants were
checkerspot quino Diego are dwarf plantain (Plantago not observed on site. Not
butterfly erecta) at lower elevations, woolly expected to occur on site and is
plantain (P. patagonica) and white outside the required survey
snapdragon (Antirrhinum area.
coulterianum) at higher elevations.
Owl's clover (Castilleja exserta) is
considered a secondary host plant
if primary host plants have
senesced. Potential habitat
includes vegetation communities
with areas of low-growing and
sparse vegetation. These habitats
include open stands of sage scrub
and chaparral, adjacent open
meadows, old foot trails and dirt
roads.
C-4
Appendix C (cont.)
Special-Status Species With Potential to Occur1
Common Name I Soecies Name I Status2 I Habit. Ecolo~ and Life History I Potential to Occur3 I
Animals (cont.)
Reptiles and Amphibians
Coast patch-Salvadora hexalepis --/SSC Primarily found in chaparral but Moderate. Suitable coastal
nosed snake virgultea also inhabits coastal sage scrub sage scrub habitat occurs on the
and areas of grassland mixed with site.
scrub.
Orange-throated Aspidoscelis --/SSC Occurs in coastal scrub, chaparral, Moderate. Suitable coastal
whiptail hyperythra MHCP/HMP and valley and foothill hardwood sage scrub habitat occurs on the
[ Cnemidophorus Covered habitats. Prefers washes and sandy site. Favored food (termites
hyperythrus] areas with patches of brush and [Reticulitermes sp.]) not
rocks. Perennial plants required to observed but likely present.
support its orimarv prey termites.
Red diamond Crotalus ruber --/SSC Found in chaparral, coastal sage Moderate. Suitable habitat
rattlesnake scrub, along creek banks, occurs on-site but no rock
particularly among rock outcrops outcrops were observed during
or piles of debris with a supply of surveys.
burrowing rodents for orey.
San Diego horned Phrynosoma --/SSC Occurs in coastal sage scrub and Moderate. Suitable coastal
lizard coronatum chaparral in arid and semiarid sage scrub habitat occurs on the
blainvillei climate conditions. site. Favored food source
(harvester ants [Pogonomy rmex
sp.]) not observed but may be
present nearby.
Birds
California homed Eremophila alpestris --/WL Observed year-round scattered Low. Limited grasslands
lark actia throughout San Diego County observed on the site. Species
Occurs in coastal strand, arid may forage on the site.
grasslands, and sandy desert floors
C-5
Appendix C (cont.)
Special-Status Species With Potential to Occur1
Common Name I Snecies Name I Status" I Habit, Ecolol!V and Life Historv I Potential to Occur3 I
Animals (cont.)
Birds (cont.)
Coastal cactus Campylorhynchus --/SSC Observed in coastal lowlands of Low. Limited stands of cactus
wren brunneicapillus MHCPNE San Diego County within cactus occur on the site. Species would
couesi thickets. have been detected if present.
Coastal Polioptila FT/SSC Found in coastal sage scrub below Present. Two pairs of
California californica MHCP/HMP 2,500 ft in southern California. gnatcatchers were detected on
gnatcatcher californica Covered Low, coastal sage scrub in arid the site during surveys
washes, on mesas and slopes. Not conducted in 2016.
all areas classified as coastal sage
scrub are occupied.
Cooper's hawk Accipiter cooperi --/WL (Nesting) Open, uninterrupted, or Moderate. Suitable nesting
MHCP/HMP marginal woodland. Nest sites habitat does not occur on the
Covered mainly found in riparian growths site. Species has potential to
of deciduous trees, live oaks. forage within the project site.
Northern harrier Circus cyaneus --/SSC (Nesting) Coastal salt and Low. Suitable nesting habitat
freshwater marsh. Nests and does not occur on the site.
forages in grasslands, from salt Species may use the site to
grass in desert sink to mountain forage if found nearby.
cienagas. Nests on ground in
shrubby vegetation, usually at
marsh edge; nest built of a large
mound of sticks in wet areas.
Southern Aimophila ruficeps --/WL Found in coastal sage scrub and Low. Suitable habitat occurs on
California canescens HMP Covered sparse mixed chaparral. the site. Species would have
Rufous-crowned been observed if present.
sparrow
C-6
Appendix C (cont.)
Special-Status Species With Potential to Occur'
Common Name I Species Name I
Animals (cont.)
Status2
I Habit, Ecoloi!V and Life History I Potential to Occurj
Mammals (cont.)
Northwestern San Chaetodipus fa/lax --/SSC Prefers open, sandy land with Moderate. Limited suitable
Diego pocket fallax weeds. habitat present on the site. mouse
San Diego black-Lepus californicus --/SSC Occurs primarily in open habitats Low. Suitable habitat is small tailed jackrabbit bennettii MHCP Covered including coastal sage scrub, and sized and surrounded by
chaparral, grasslands, croplands, residential development.
and open, disturbed areas if there Species would have been
is at least some shrub cover observed if present.
present.
San Diego desert Neotoma lepida --/SSC Open chaparral and coastal sage Moderate. Suitable habitat woodrat intermedia scrub, often building large, stick occurs on the project site. Nests
nests in rock outcrops or around usually observed if present, but
clumps of cactus or yucca. may have escaped view in
thicker vegetated areas.
Townsend's Plecolus townsendii --/SSC Occurs in deserts scrubs as well as Low. May use site for
western big-eared townsendii pine and pifion-juniper forests. foraging, but roosting sites bat Usually roosts in buildings or likely elsewhere.
caves. . . ' Sens1t1ve species reported within 5 miles ofthc project site . 2 Listing is as follows: F = Federal: S = State of California; E = Endangered; T = Threatened; R = Rare; FP = Fully Protected; BCC = Bird of Conservation Concern:
SSC = State Species of Special Concern.
CRPR = California Rare Plant Rank: IA-presumed extinct; I B -rare, threatened, or endangered in California and elsewhere; 2A-rare, threatened. or endangered in
California and elsewhere: 2B -rare, threatened, or endangered in California but more common elsewhere; 3 -more infon11ation needed: 4 -watch list for species of limited
distribution. Extension codes: . I -seriously endangered: .2 -moderately endangered; .3 -not very endangered. 3 Potential to Occur is assessed as follows. None: Species is either sessile (e.g. plants) or so limited to a particular habitat that it cannot disperse on its own (e.g. fairy shrimp).
and habitat suitable for its survival does not occur on the project site; Not Expected: Species moves freely and might disperse through or across the project site. but suitable
habitat for residence or breeding does not oc.cur on the project site: Low: Suitable habitat is present on the project site but is of low quality and no sign of the species was
observed during surveys, however the species cannot be excluded with certainty; High: Suitable habitat occurs on the project site and the species has been recorded recently on
or near the project site, but was not observed during surveys for the current project; Presumed Present: The species was observed during biological surveys for the current
project and is assumed to occupy the project site. Presumed Absent: Valid protocol surveys for the species were negative and the species is assumed to not occupy the site.
C-8
I
Appendix D
CAL-IPC: THE INVENTORY
HIGH AND MOD ERA TE CATEGORY INV AS IVE PLANTS
SCIENTIFIC NAME
High Category Species
Alternanthera philoxeroides
Ammophila arenaria
Arundo donax
Brassica tournefortii
Bromus madritensis s5p. rubens
Bromus tectorum
Carpobrotus edulis
Centaurea maculosa
Centaurea solstitialis
Cortaderia jubata
Cortaderia selloana
Cytisus scoparius
Delairea odorata
Egeria densa
Eichhornia crassipes
Euphorbia esula
Foeniculum vulgare
Genista monspessulana
Hedera helix, H canariensis
Hydrilla verticillata
Lepidium lat!folium
Ludwigia hexapetala
Ludwigia peploides ssp. montevidensis
Lythrum salicaria
Myriophyllum aquaticum
Onopordum acanthium
Rubus armeniacus
Sesbania punicea
Spartium junceum
Taeniatherum caput-medusae
Tamarix parviflora
Tamarix ramosissima
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COMMON NAME
alligator weed
European beachgrass
giant reed
Saharan mustard, African mustard
red brome
downy brome, cheatgrass
Hottentot-fig, iceplant
spotted knapweed
yellow starthistle
jubatagrass
pampas grass
Scotch broom
Cape-ivy, German-ivy
Brazilian egeria
water hyacinth
leafy spurge
fennel
French broom
English ivy, Algerian ivy
hydrilla
perennial pepperweed, tall whitetop
Uruguay water-primrose
creeping water-primrose
purple loosestrife
parrotfeather
Scotch thistle
Himalaya blackberry
red sesbania, scarlet wisteria
Spanish broom
medusahead
smallflower tamarisk
saltcedar, tamarisk
Appendix D (cont.)
CAL-IPC: THE INVENTORY
HIGH AND MODERATE CATEGORY INVASIVE PLANTS
SCIENTIFIC NAME
Moderate Category Species
Acacia dealbata
Acroptilon repens
Ageratina adenophora
Ailanthus altissima
Alhagi maurorum
Arctotheca calendula (sterile)
Asparagus asparagoides
Asphodel us fistulosus
Atriplex semibaccata
Brachypodium distachyon
Brassica nigra
Bromus diandrus
Cardaria chalepensis
Carduus pycnocephalus
Carpobrotus chilensis
Centaurea calcitrapa
Centaurea diffusa
Centaurea melitensis
Chrysanthemum coronarium
Cirsium arvense
Cirsium vulgare
Conium maculatum
Cotoneaster lacteus
Cotoneaster pannosus
Cynara cardunculus
Cynodon dactylon
Cynosurus echinatus
Cytisus striatus
Dipsacus fullonum
Dipsacus sativus
Dittrichia graveolens
Ehrharta erecta
Ehrharta longiflora
Elaeagnus angust(folia
Emexspinosa
D-2
COMMON NAME
silver wattle
Russian knapweed
croftonweed, eupatorium
tree-of-heaven
camelthorn
sterile capeweed
bridal creeper
onionweed
Australian saltbush
Purple false broom
black mustard
ripgut brome
lens-podded white-top
Italian thistle
sea-fig, iceplant
purple starthistle
diffuse knapweed
Tocalote
crown daisy
Canada thistle
bull thistle
poison-hemlock
Parney's cotoneaster
silverleaf cotoneaster
artichoke thistle
bermudagrass
hedgehog dogtailgrass
Portuguese broom
common teasel
fuller's teasel
stink.wort
erect veldtgrass
long-flowered veldtgrass
Russian-olive
spiny emex, devil's-thorn
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Appendix D (cont.)
CAL-IPC: THE INVENTORY
HIGH AND MOD ERA TE CATEGORY INVASIVE PLANTS
SCIENTIFIC NAME
Moderate Category Species (cont.)
Erechtites glomerata, E. minima
Eucalyptus globulus
Euphorbia terracina
Festuca arundinacea
Ficus carica
Geranium dissectum
Glyceria declinata
Halogeton glomeratus
Hirschfeldia incana
Holcus lanatus
Hordeum marinum, H. murinum
Hypericum canariense
Hypericum perforatum
liypochaeris radicata
Kochia scoparia
Leucanthemum vulgare
Linaria genistifolia ssp. dalmatica
Linaria vulgaris
Lolium multiflorum
Mentha pulegium
Mesembryanthemum crystallinum
Myoporum laetum
lVicotiana glauca
Oxalis pes-caprae
Pennisetum setaceum
Phalaris aquatica
Potamogeton crispus
Retama monosperma
Rumex acetosella
Sisymbrium irio
Tori/is an,ensis
Trifolium hirtum
Vinca major
Vulpia myuros
Washingtonia robusta
D-3
COMMON NAME
Australian fireweed
Tasmanian blue gum
carnation spurge
tall fescue
edible fig
cutleaf geranium
waxy mannagrass
halogeton
shortpod mustard
common velvet grass
Mediterranean barley
Canary Island hypericum
common St. John's wort
rough catsear, hairy dandelion
kochia
ox-eye daisy
Dalmation toadflax
yellow toadflax
Italian ryegrass
pennyroyal
crystalline iceplant
myoporum
tree tobacco
yellow oxalis
crimson fountaingrass
hardinggrass
curly leaf pondweed
bridal broom
red sorrel, sheep sorrel
London rocket
hedgeparsley
rose clover
big periwinkle
rattail fescue
Mexican fan palm
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