U.S. Fish and Wildlife Service, Sacramento Fish and Wildlife Office 20230824 Vector Digital Data Set (Polygon) http://ecos.fws.gov/docs/crithab/zip/FCH_Ambystoma_californiense_20050823.zip https://www.wildlife.ca.gov/Data/BIOS These data identify, in general, the areas of final critical habitat for Ambystoma californiense (California tiger salamander, Central Population). Critical habitat constitutes areas considered essential for the conservation of a listed species. These areas provide notice to the public and land managers of the importance of the areas to the conservation of this species. Special protections and/or restrictions are possible in areas where Federal funding, permits, licenses, authorizations, or actions occur or are required. Complete None planned -122.034679 -119.201007 38.927603 35.563378 None Central Population U.S. Fish and Wildlife Service Ambystoma californiense habitat California tiger salamander critical ISO 19115 Topic Categories environment biota None Central California None Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.The GIS files and their associated coordinates are not the legal source for determining the critical habitat boundaries of species described in this dataset, but are used to identify areas which contain the physical and biological features essential to the conservation of the species or areas otherwise determined to be essential. Inherent in any dataset used to develop graphical representations, are limitations of accuracy as determined, among others, the source, scale and resolution of the data. While the U.S. Fish and Wildlife Service makes every effort to represent the critical habitat shown with data as completely and accurately as possible (given existing time and resource constraints), the USFWS gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. In addition, the USFWS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Graphical representations provided by the use of these data do not represent a legal description of the critical habitat boundary. The user is referred to the critical habitat textual description in the appropriate final rule for this species as published in the Federal Register. These data are to be used only in the context of the definition and purpose of critical habitat. This primarily relates to Section 7 consultation under the Endangered Species Act. These data may be used for planning and land management purposes. They are not to be used for legal survey use. Please refer to Federal Register Citation Number 70FR49380, published 20050823 for the legal critical habitat information. U.S. Fish and Wildlife Service, Sacramento Fish and Wildlife Office Chief, Branch of Data Integration mailing and physical

2800 Cottage Way, W-2605

Sacramento CA CA none SRPTeam@fws.gov Email, fax, or telephone. U.S. Fish and Wildlife Service, Sacramento Fish and Wildlife Office Chief, Branch of Data Integration mailing and physical

2800 Cottage Way, W-2605

Sacramento CA CA none SRPTeam@fws.gov Email, fax, or telephone. U. S. Fish and Wildlife Service, Sacramento Fish and Wildlife Office Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 No formal attribute accuracy tests were conducted. Geometry has been validated. This dataset is complete. Accuracy is dependent upon source materials A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. hardcopy Refer to the Federal Register (70FR49380), 20050823. We are designating critical habitat on lands that we have determined are occupied at the time of listing and contain the PCEs and those additional features found to be essential to the conservation of the Central population of the CTS. In our determination of critical habitat for the Central population of the CTS, we selected areas that possess the physical and biological features that are essential to the conservation of the species and that may require special management considerations or protection. After identifying the principal PCEs that are essential to the conservation of the CTS, we used the PCEs in combination with occurrence data; geographic distribution; GIS data layers for habitat mapping; vegetation, topography, watersheds, and current land uses; scientific information on the biology and ecology of the CTS; and accepted conservation principles for threatened or endangered species. To identify areas that contain those features which are essential to the conservation of the CTS within the occupied range of the Central population of the CTS, we first looked at the range of the Central population, as was reported and mapped by biologists who had conducted CTS surveys throughout the range of the species. The range boundaries were developed based on the principles of conservation science, genetics of the species, topography, geology, soils, vernal pool type distribution, and survey information (CNDDB 2004; CDFG 1998). To the best of our ability, we did not include non-habitat areas such as subdivisions, intensive agricultural areas, or areas containing slopes too steep to support aquatic habitats or upland refugia necessary for the conservation of CTS. We then focused on areas within the range where we had credible records (e.g., museum voucher specimens, reports filed by biologists holding section 10(a)(1)(A) recovery permits) indicating CTS presence (CNDDB 2004). The known locations of Central population of the CTS fall into four geographic regions of Central California. These geographic regions correspond to the four regions identified by Shaffer et al. (2004) outside Sonoma and Santa Barbara Counties and are separated by either geological or topographical features, or ecological zones, or both. Our conservation strategy for the Central population focuses on those extant locations that provide sufficient aquatic and upland habitats to ensure high enough adult survival to maintain and sustain extant occurrences of CTS in each of these four geographic regions within the range of the Central population of the species. Wherever possible within these four geographical regions, we included denser groups of aggregated extant occurrences that possessed the minimum size resolution for long term preserve design and are representative of the geographic extents of each separate genetic region. Each of the critical habitat units possesses a unique combination of occupied aquatic and upland habitat types, landscape features, surrounding land uses, vernal pool types, ponds, geographical range, genetic composition, and topography. We determined that conserving the Central Population of the CTS over the long term requires a five pronged approach: (1) Maintaining the current genetic structure across the species range; (2) maintaining the current geographic, elevational, and ecological distribution; (3) protecting the hydrology and water quality of breeding pools and ponds; 4) retaining or providing for connectivity between breeding locations for genetic exchange and recolonization; and (5) protecting sufficient barrier-free upland habitat around each breeding location to allow for sufficient survival and recruitment to maintain a breeding population over the long term. An explanation of how we determined the amount of upland habitat which contained features that are essential for the conservation of the CTS in each critical habitat unit is described below in more detail. Protecting the upland refugia as watersheds of occupied extant occurrences of the Central population of the CTS is essential for four reasons: (1) To provide terrestrial foraging, cover, and shelter for CTS upland existence; (2) to ensure that the amount of water entering an extant occupied aquatic habitat is not altered to such an extent to allow predators (such as bullfrogs and fish) to colonize the site; (3) to maintain the hydrologic functioning of the wetland to ensure inundation periods (e.g. 12 week minimum in all but the driest years) are maintained; and, (4) to preserve water quality by minimizing the entry of sediments and other contaminants to the known occupied habitat. Therefore, our critical habitat boundaries include the upland refugia of watersheds containing known occupied occurrences within the range of the Central population of the CTS. We then identified the amount of upland habitat surrounding these extant occurrences where adult CTS live during the majority of their life cycle. To determine a general guideline for the amount of upland habitat necessary to support an occurrence of adult CTS, we reviewed the primary literature regarding CTS upland habitat use, including Trenham (2000), Trenham et al. (2000 and 2001), and Trenham and Shaffer (in review). The best scientific peer-reviewed data indicate that CTS do not remain primarily in burrows close to aquatic habitats and breeding ponds, but instead move some distance out into the surrounding upland landscapes. As described in the Background section, CTS have been found up to 1.2 mi (2 km) from occupied occurrences. Two studies conducted in Monterey and Solano counties provide the best available scientific data on upland movement distances. First, the mark-recapture study of Trenham et al. (2001) showed that CTS commonly moved between ponds separated by 2,200 ft (670 m), suggesting that movements of this magnitude are not rare. Second, the ongoing study at Olcott Lake (Solano County) has directly documented the presence of high densities of juvenile and adult CTS at upland locations at least 1,300 ft (400 m) from this high quality breeding pond. In a recent trapping effort, 16 percent of total captures of juvenile salamanders occurred at 2,300 ft (700 m) (Trenham et al. 2001). Trenham and Shaffer (in review) determined that conserving upland habitats within 2,200 ft (670 m) of breeding ponds would protect 95 percent of CTS at their study location in Solano County. Protecting the needed upland habitat area with a radius of 2,200 ft (670 m) around a single pond that has a 13 ft (10 m) radius may yield a minimum area of 350 ac (140 ha). However, the size of any occurrence or breeding pond may increase the total amount of necessary aquatic and upland habitat space for survival of any known occurrence. We used 0.70 mi (1.1 km) dispersal distance (radius) as a guide for the amount of upland habitat around known occupied extant occurrences to be mapped as critical habitat for the purposes of preserving the Central population of the CTS within small mammal burrows (PCE 2). However, although the studies discussed above provide an approximation of the distances that CTS can move from their aquatic habitats, breeding ponds, and known occupied aquatic habitats in search of suitable upland refugia, we recognize that upland habitat features will influence CTS movements in a particular landscape. As a result, in some designated units, we made adjustments to the upland areas to include additional areas up to the watershed boundaries or to include habitat containing the PCEs. In other cases, the critical habitat units were reduced so as not to include non-habitat areas (those not exhibiting the PCEs) from the designation. Some agricultural lands were included if they were directly adjacent to known extant occurrences and considered essential for upland refugia or connectivity between occurrences and were not considered a barrier to movement. To determine the areas to be mapped within each unit for the purposes of dispersal (i.e. PCE 3), we used a distance of 0.70 mi (1.1 km) as a general guide. The only known study we are aware of that specifically investigated movement of California tiger salamanders between breeding ponds projected that 0.70 mi (1.1 km) would encompass 99 percent of interpond dispersal (Trenham et al. 2001). However, we recognize that (as with movements in search of suitable underground refugia) upland habitat features influence CTS movements within a particular landscape. Section 10(a)(1)(B) of the Act authorizes us to issue permits for the take of listed species incidental to otherwise lawful activities. An incidental take permit application must be supported by a habitat conservation plan (HCP) that identifies conservation measures that the permittee agrees to implement for the species to minimize and mitigate the impacts of the requested incidental take. We often exclude from designated critical habitat non-Federal public lands and private lands that are covered by an existing operative HCP and executed implementation agreement (IA) under section 10(a)(1)(B) of the Act because the benefits of exclusion outweigh the benefits of inclusion as discussed in section 4(b)(2) of the Act. We are aware of five HCPs under various stages of development; however, these draft HCPs are not proposed for exclusion because we have not made a determination that they meet our issuance criteria nor that they provide adequate conservation for CTS. In addition, they are not ready for public notice and comment. When defining critical habitat boundaries, we made an effort to exclude all developed areas, such as towns, housing developments, and other lands unlikely to contain primary constituent elements essential for CTS conservation. However, our minimum mapping units do not allow us to exclude all developed lands, such as outbuildings, roads, paved areas, lawns, and other similar areas that are unlikely to contain any of the PCEs in this rule. Federal actions limited to these non habitat areas would not trigger a section 7 consultation, unless those proposed actions would affect other threatened or endangered species and/or the PCEs in adjacent critical habitat. In summary, we designate as critical habitat four critical geographical regions where the Central population of the CTS are known to be extant because we believe protection of the units within these four regions is essential to the conservation of the species. These extant occurrences represent approximately 68 percent of all extant occurrences across the range of the Central population of CTS. Using a dispersal distance of 0.70 mi (1.1 km) from each of these occurrences, the four geographical areas also include some other occurrences of the CTS. Areas of final critical habitat occurring inside the twelve Census 2000 tracts identified in the economic analysis as having the greatest economic impact in terms of Surplus Lost, were eliminated. Final critical habitat legal descriptions were derived directly from the ArcGIS shapefile sketch properties table, listing the x and y coordinates of each polygon representing final critical habitat. 20050723 Vector GT-polygon composed of chains 36 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.0001 0.0001 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds247 Table containing attribute information associated with the data set. Producer defined OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. COOPOFFICE Cooperating Office Cost Center Code U.S. Fish and Wildlife Service NONE Unknown Producer defined LEADOFFICE Lead Office Cost Center Code U.S. Fish and Wildlife Service FF08ESMF00 Unknown Producer defined STATUS Critical Habitat Status U.S. Fish and Wildlife Service FINAL Final Critical Habitat Producer defined UNIT Critical habitat unit code U.S. Fish and Wildlife Service Unknown SINGLMULTI Differentiates between Critical Habitats of single species and multiple species. U.S. Fish and Wildlife Service SINGLE Shapefile represents a single species. Producer defined ACCURACY Accuracy items or concerns U.S. Fish and Wildlife Service {Null Value / Empty Field Entry} Unknown Producer defined VACATEDATE Date critical habitat designation vacated U.S. Fish and Wildlife Service {Null Value / Empty Field Entry} Unknown Producer defined EFFECTDATE Effective date for critical habitat designation U.S. Fish and Wildlife Service 20050922 Unknown Producer defined FEDREG Federal Register ID U.S. Fish and Wildlife Service 70FR49380 Unknown Producer defined COMNAME Legal common name of the species U.S. Fish and Wildlife Service CALIFORNIA TIGER SALAMANDER Unknown Producer defined SUBUNITNAM Critical Habitat subunit name U.S. Fish and Wildlife Service {Null Value / Empty Field Entry} Unknown Producer defined SUBUNIT Critical Habitat subunit code U.S. Fish and Wildlife Service B Unknown Producer defined A Unknown Producer defined {Null Value / Empty Field Entry} Unknown Producer defined VIPCODE Unique Population Code referencing the species for the critical habitat being submitted U.S. Fish and Wildlife Service V03 Unknown Producer defined PUBDATE Federal Register publication date U.S. Fish and Wildlife Service 20050823 Unknown Producer defined SCINAME Binomial or trinomial scientific name U.S. Fish and Wildlife Service AMBYSTOMA CALIFORNIENSE Unknown Producer defined UNITNAME Critical Habitat unit name U.S. Fish and Wildlife Service CENTRAL VALLEY REGION Unknown Producer defined EAST BAY REGION Unknown Producer defined SOUTHERN SAN JOAQUIN REGION Unknown Producer defined CENTRAL COAST REGION Unknown Producer defined COOPOFMORE Additional Cooperating Office Cost Center Codes U.S. Fish and Wildlife Service {Null Value / Empty Field Entry} Unknown Producer defined SPCODE Unique Species Code referencing the species for the critical habitat being submitted U.S. Fish and Wildlife Service D01T Unknown Producer defined Shape_Length Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. U.S. Fish and Wildlife Service ECOS Development Team mailing and physical

1201 Oakridge Dr.

Fort Collins CO 80525 US 970-266-2999 http://ecos.fws.gov/ecp/helpTickets/create See access and use constraints information. http://services.arcgis.com/QVENGdaPbd4LUkLV/arcgis/rest/services/USFWS_Critical_Habitat/FeatureServer None This shapefile is downloadable from the US Fish and Wildlife Service's Critical Habitat Portal. See the "Online Source" section. 20230908 U.S. Fish and Wildlife Service, Sacramento Fish and Wildlife Office Chief, Branch of Data Integration mailing and physical

2800 Cottage Way, W-2605

Sacramento CA CA none SRPTeam@fws.gov Email, fax, or telephone. FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time