California
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | 1.98 | ac | Both Male and Female | Adult | 6 pairs | Oakland Airport | Exposure Factor Datasets | |
Clutch or Litter Size | mean annual productivity | young/breeding adult | Both Male and Female | Adult | 18 birds | Oakland Airport | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 925 | estimate of number of pairs in census area | pairs/43,235 km^2 | Both Male and Female | Not Reported | 198 UTM blocks censused | San Francisco Bay and Central Valley areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 73 | percent of pairs hatching at least one chick | % | Both Male and Female | Adult | 15 pairs | Moffett Air Force Base | Exposure Factor Datasets | Santa Clara |
Deer Mouse (Peromyscus maniculatus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | range of means for 4 trapping periods | #/acre | Both Male and Female | Both Adults and Juveniles | 4 trapping periods | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 100% | g | Both Male and Female | Adult | 23 | Blue Lake, 75 long., 95 lat. |
Exposure Factor Datasets | 2 years | Alpine | Breeding | 0 |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | range of means over 3 yrs in 2 habitat types during 2 seasons | g | Male | Adult | Not Reported | Santa Barbara Island [lat.,33^o29' N, long., 119^o02' W] | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 0.6 | total body fat | g | Female | Adult | 21 | Pinyon-juniper zone near Westgard Pass (elev., 2500 m) | Exposure Factor Datasets | Inyo | 0.3 SD |
Pallid Bat (Antrozous pallidus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | May 27-June 18 | Female | Adult | 30 | Napa Valley | Exposure Factor Datasets | Napa | breeding | |
Metabolic Rate | see citation | no values reported; see figures in paper | Female | Adult | 30 | Napa Valley | Exposure Factor Datasets | Napa | breeding |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Molt | May-Aug. | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Kern, San Luis Obispo |
Desert Tortoise (Gopherus agassizi)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Torpor or Hibernation | Sept. - Mar. | Female | Adult | 9 | Fenner Valley, Goffs (elev., 680m) {lat., 34^o51'N; long., 115^o09'W] | Exposure Factor Datasets | San Bernardino |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | range of 95% confidence intervals | #/km2 | Both Male and Female | Both Adults and Juveniles | 2 yrs | western Mojave desert, Kramer Hills | Exposure Factor Datasets | |
Survival/ Mortality | 2.9 | annual mortality rate for subadults and adults between 1980 and 1982 | %/yr | Both Male and Female | Both Adults and Juveniles | 2 yrs | western Mojave desert, Kramer Hills | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | range of annual mortality rates from 1980 and 1981 | % | Both Male and Female | Adult | Not Reported | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Metabolic Rate | see citation | figure of seasonal changes in metabolic rates | L CO2/kg/d | Male | Adult | 6-11 | Desert Tortoise Natural Area, California City (elev. 869-945 m) [lat., 35^o10'N, long., 118^o10'W] and Ivanpah Valley (elev., 866-914 m) [35^o39'N, 115^o15' W] | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | range of population densities in % of area (800 mi2) surveyed | #/mi2 | Not Reported | Not Reported | Not Reported | Fort Irwin National Training Center and Goldstone Space Communication Center, Barstow | Exposure Factor Datasets |
San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Dipodomus ingens (17%), Dipodomys sp. (14%), D. heermanni (10%), Unident. rodents (6%), Oedaleonotus enigma (66%), Pocalta ursinus (5%), Coniontis sp. (1%), Stenopelmatus (9%), grass (74%) | Percent occurrence in scats | % | Not Reported | Not Reported | 74 scats (1 den) | 6 mi. east of Panoche | Exposure Factor Datasets | San Benito |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 5.82 | nocturnal range, based on noctural locations of marked individuals | km2 | Both Male and Female | Adult | 26 | south San Joaquin Valley | Exposure Factor Datasets | Kern | 0.45 SE |
Home Range | 6.13 | based on all observations of marked individuals | km2 | Both Male and Female | Adult | Exposure Factor Datasets | Kern | 0.45 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | pups | Female | Adult | 4 foxes | Carrizo Plain Natural Area | Exposure Factor Datasets | San Luis Obispo | |||
Home Range | 11.6 | individual home range size | km2 | Both Male and Female | Adult | 21 foxes | Carrizo Plain Natural Area | Exposure Factor Datasets | San Luis Obispo | 0.9 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | lagomorphs (73.3%), kangaroo rats (13.1%), San Joaquin antelope ground squirrel (2.9%), San Joaquin kit fox (2.8%), Cricetidinae (1.3%), Heteromyidae (0.8%), San Joaquin pocket mouse (0.7%), California ground squirrel (0.6%), southern grasshopper mouse (0.5%), sheep (0.5%), Botta pocket gopher (0.3%), birds (1.4%), snakes (1.2%), lizards (0.1%), grasshoppers and crickets (6.2%), beetles (1.0%), arthropods (0.2%), grass (1.7%), soluble material (5.2%), other (9.1%) | frequency of occurrence of food items found in scat | % | Both Male and Female | Both Adults and Juveniles | 1430 scats | Naval Petroleum Reserve #1 | Exposure Factor Datasets | Kern |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 4.3 | average home range | km2 | Both Male and Female | Both Adults and Juveniles | Not Reported | Naval Petroleum Reserves in California, Bakersfield | Exposure Factor Datasets | Kern |
Western Fence Lizard (Sceloporus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 20 | oxygen consumption measured at 15C | ul O2/g/hr | Not Reported | Adult | 8 | Victorville | Exposure Factor Datasets | hibernating |
Body Weight - Mean | 13.8 | g | Not Reported | Adult | 8 | Victorville | Exposure Factor Datasets | hibernating |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.049 | resting metabolic rate at 20C, estimated as carbon dioxide production rate | ml CO2/g/hr | Both Male and Female | Adult | 11 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | reproductively inactive | 0.006SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | SCW = 0.46(BW)^0.63 | equation relating stomach content fresh weight (SCW; mg) to body weight (BW; g) | mg | Both Male and Female | Not Reported | 920 animals | yellow pine forest (elev., 1500m) and valley grassland (elev., 150m), central Sierra Nevada | Exposure Factor Datasets |
Food Ingestion Rate | 127 | estimated average stomach content fresh weight in 5 g lizard | mg | Both Male and Female | Not Reported | Not Reported | central Sierra Nevada (elev., 150m and 1500m) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Formicidae (34.8-34.1%); Coleoptera (18.1-26.4%); Isoptera (19.8-17.2%); Hemiptera-Homoptera (5.0-8.1%); Non-formicid Hymenoptera (5.6-6.5%); Diptera (0.5-1.4%); Orthoptera (1.7-2.6%); Odonata (0.0-0.3%); Dermaptera (0.0-1.3%); Insect larvae (2.8-4.8%); Isopoda (0.0-1.4%); Arancae (1.6-2.8%); Land snails (0.0-0.5%); Sceloporus hatchlings (0.0-0.1%) and Unknown (1.4-2.0%) | percentage of total individuals of various prey taxa in stomach contents. | % | Not Reported | Adult | 45-47 animals/site | Blackbird Valley and Foss Valley | Exposure Factor Datasets | Napa, Santa Clara |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | BW = 4.44 - 0.31(SVL) + 0.0062(SVL)^2 | equation relating body weight (BW; g) to snout-vent length (SVL; 20 - 80mm) | g | Male | Both Adults and Juveniles | 101 | Hastings Reservation | Exposure Factor Datasets | Monterey |
Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Algae (2.00); Nematomorpha (0.25); Crustacea (2.55); Araneae (0.15); Odonata nymphs (10.15); Ephemeroptera nymphs (4.60); Trichoptera larvae (17.25); Hemiptera nymphs (0.58); Hemiptera adults (0.41); Orthoptera adults (1.60); Coleoptera larvae (7.95); Coleoptera adults (0.48); Diptera larvae (4.45), Diptera adults (0.30); Osteichthyes (0.90); Amphibia (1.20); Other (0.80) | volume (cc) of food items in stomach contents determined by water displacement | cc | Not Reported | Juvenile | 30 | Hayfork Creek (elev., 750m) | Exposure Factor Datasets | Trinity |
Dietary Composition | Algae (18.00); Other vegetation (0.30); Nematomorpha (0.05); Crustacea (10.10); Araneae (0.15); Odonata nymphs (4.05); Ephemeroptera nymphs (0.15); Trichoptera larvae (19.80); Hemiptera nymphs (0.40); Hemiptera adults (0.30); Orthoptera adults (0.55); Coleoptera larvae (5.15); Coleoptera adults (0.30); Diptera larvae (0.66), Diptera adults (0.10); Osteichthyes (0.20); Amphibia (4.05); Other (1.35) | volume (cc) of food items in stomach contents determined by water displacement | cc | Female | Adult | 27 | Hayfork Creek (elev., 750m) | Exposure Factor Datasets | Trinity |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Time of Torpor or Hibernation | Sept. - Mar. | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
California Sea Lion (Zalophus californianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | 130 | territory size during breeding | m2 | Male | Adult | 20 territories | San Nicolas Island | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 8.4 | mean size neonate ; pre El Nino 1982 | kg | Not Reported | Neonate | 39 neonates | San Nicolas Island | Exposure Factor Datasets | 3 days or less | 0.146 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | May-late June | pupping season | Female | Adult | Not Reported | San Miguel Island | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.1+/- 0.1 to 3.2+/- 0.1 | mean number of eggs/nest (over 3 years) | Female | Adult | 263-312 nests/year | San Francisco Bay estuary | Exposure Factor Datasets |
Sideblotched Lizard (Uta stansburiana)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Spiders (4.1); Solpugids (0.5); Ants (14.7); Other Hymenoptera (2.6); Grasshoppers (19.3); Roaches (3.6); Mantids (1.3); Ant Lions (0.6); Beetles (41.2); Termites (33.8); Homoptera-Hemiptera (1.9); Diptera (0.4); Lepidoptera (1.2); Insect larvae (11.3); Unidentified Insects (9.9); Insect Eggs (0.3); Lizards (0.5); Plant Materials (3.0); Unidentified (9.4) | volume (cc) of prey items in stomach contents | cc | Not Reported | Not Reported | 811 | Pahrump, Searchlight, NV; Mojave, Twentynine Palms, CA; Salome, Phoenix South Mountain, Casa Grande, AZ [lat., 32-36] | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | range of early activity season (spring to summer) mortality rates measured over 3 yrs | deaths/100 lizards/d | Not Reported | Adult | 33-48/yr | Panamint Valley (elev., 790m), [lat., 36^o20'N; long., 117^o30' W] | Exposure Factor Datasets | Inyo |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.6 | average clutch size | eggs/female | Female | Adult | 16 | Corral Hollow Road | Exposure Factor Datasets | Contra Costa |
Desert Iguana (Dipsosaurus dorsalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 43 | average annual survivorship estimated for 2 yrs | % | Not Reported | 27-65 marked/yr | Thousand Palms | Exposure Factor Datasets | 7-9 mo | Riverside |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Metabolic Rate | range of average field metabolic rates (measured using doubly-labeled water) over 3 time periods | ml CO2/g/hr | Not Reported | Adult | 7-11/time period | Thousand Palms | Exposure Factor Datasets | Riverside |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | log weight = 0.011 SVL + 0.46 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Male | Adult | Not Reported | Palm Desert | Exposure Factor Datasets |
Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Foraging Distance | 42 | maximum foraging distance from burrow | m | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare |
Coachella Valley Fringe-toed Lizard (Uma inornata)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 1070 | average home range estimated using minimum convex polygon method (snout-vent length, 80+mm) | m2 | Male | Adult | 25 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside | 228 (95CI) |
Island Night Lizard (Xantusia riversiana)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of average male and average female weights | g | Both Male and Female | Adult | 258 | Santa Barbara Island | Exposure Factor Datasets | non-pregnant |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of average number of young produced/female at 3 sites | young/female | Female | Adult | 2-25 | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 125 | average body weight | g | Both Male and Female | Adult | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Pacific Treefrog (Pseudacris regilla formerly Hyla regilla)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Jan. - June | time of breeding | Both Male and Female | Adult | 85 pairs in amplexus | San Diego | Exposure Factor Datasets |
Merriam's Kangaroo Rat (Dipodomys merriami)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 42 | estimated age at weaning | d | Not Reported | Juvenile | 104 | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | San Bernardino |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 17 | g | Both Male and Female | Juvenile | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | 4 wk | Inyo |
Time of Mating/ Laying | Jan. - June | Both Male and Female | Adult | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | Inyo |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|
Growth Rate | range in male and female % change in body weight per day following recapture during 4 trapping periods | %/d | Both Male and Female | Adult | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | "subadult" |
Brush Rabbit (Sylvilagus bachmani)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 637 | g | Female | Adult | 101 | Berkeley Hills | Exposure Factor Datasets | 7 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.5 | young/litter | Female | Adult | 11 | Exposure Factor Datasets |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Cottontail (37.1%); Ground squirrel (27.9%); Woodrat (18.6%); Bird egg (5.3%); Gopher (4.0%); Other (7.1%) | percentage of total prey weight palped from stomachs | % | Not Reported | Not Reported | 70 prey items | San Joaquin Experimental Range | Exposure Factor Datasets |
California Ground Squirrel (Spermophilus beecheyi)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Home Range | range of means for 2 yrs | m2 | Female | Adult | 0-12/yr | Camp Ohlone [lat., 37^o29'N; long., 121^o45'W] | Exposure Factor Datasets | Alameda |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | 76 | #/acre | Not Reported | Not Reported | 3 counts | Walnut Creek | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Feb.-Mar. | breeding | Both Male and Female | Adult | Not Reported | Camp Ohlone, East Bay Regional Park District | Exposure Factor Datasets | Alameda |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | see citation | figure of monthly changes in body weight | g | Both Male and Female | Both Adults and Juveniles | 2 - 106/sample | Calaveras Reservior | Exposure Factor Datasets | Alameda, Santa Clara |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Home Range | 4217.07 | m2 | Female | Adult | 5 | Capay (elev., 305 m) | Exposure Factor Datasets | Yolo | 1515.67 SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 397.3 | g | Female | Not Reported | 373 | Hastings Natural History Reservation | Exposure Factor Datasets | Monterey |
Riparian Brush Rabbit (Sylvilagus bachmani ssp. riparius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | review | reported average of 9-16 young/female/yr (data source not specified) | Female | Adult | Not Reported | Exposure Factor Datasets |
California Vole (Microtus californicus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 103 | estimated by minimum area polygon | m2 | Male | Adult | Not Reported | Richmond Field Station | Exposure Factor Datasets | Contra Costa | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.0 | mean; height of growing season | pups/litter | Female | Adult | 4 | Russell Reservation | Exposure Factor Datasets | Contra Costa | 1.3 (95%CI) |
Population Density | peak density | #/acre | Both Male and Female | Both Adults and Juveniles | Not Reported | Richmond Field Station and Russel Reservation | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 25.8 | median weight at sexual maturity | g | Male | Adult | 33 | Sea Ranch | Exposure Factor Datasets | Sonoma |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.20 | mean embryo number per female | embryos/female | Female | Adult | 154 | San Francisco Bay, San Rafael | Exposure Factor Datasets | Marin | 1.41 SD |
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Survival/ Mortality | range of mean minimum survival rates per 14 d measured | Female | Juvenile | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets |
Arroyo Toad (Anaxyrus californicus formerly Bufo microscaphus ssp. californicus)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | June - July | Not Reported | Tadpole | Not Reported | Mojave River | Exposure Factor Datasets | San Bernardino |
Western Snowy Plover (Charadrius nivosus ssp. nivosus formerly Charadrius alexandrinus ssp. nivosus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | early March to April 26 | period during which most color-banded birds left the study area | Not Reported | Adult | 19 birds | Pajaro Dunes, Monterey Bay | Exposure Factor Datasets | Monterey |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 37 | percent of eggs that hatched | % | Not Reported | Hatchling | 35 nests | Point Reyes | Exposure Factor Datasets | Marin |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | 30.9 | fledging period, measured from hatch to first flight of at least 3 m | d | Not Reported | Fledgling | 22 birds | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
California Least Tern (Sterna antillarum ssp. browni)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.33 (first wave), 1.70 (second wave) | average clutch sizes for early and late nesters | eggs/clutch | Female | Adult | 10 nests (first wave), 33 nests (second wave) | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 2 | earliest age at which adults were known to breed for the first time | yr | Not Reported | Adult | 186 birds | Venice (beach) | Exposure Factor Datasets | Los Angeles |
Ornate Shrew (Sorex ornatus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | spring | time of breeding | Both Male and Female | Adult | Not Reported | San Francisco Bay region | Exposure Factor Datasets |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | mid-June | time by which first eggs laid | Both Male and Female | Adult | 11 nests | Perazzo Meadows, Lacey Valley (32 km NW of Truckee) | Exposure Factor Datasets | Sierra |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 2.2 | breeding density estimate | birds/36 ha | Male | Adult | 6 territories | Palomarin Field Station, Point Reyes Bird Observatory | Exposure Factor Datasets | Marin | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 13 | incubation period from start to hatching | d | Not Reported | Embryo | 1 clutch | Stanford University Campus | Exposure Factor Datasets | Santa Clara |
Ensatina (Ensatina eschscholtzii), Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Growth Rate | 0.092 | change in snout-vent length measured between recaptures (>1000d) | mm/d | Female | Adult | Not Reported | Calaveras Big Trees State Park (elev., 1400m) | Exposure Factor Datasets | Calaveras | USA | 0.0071 |
Least Bell's Vireo (Vireo bellii ssp. pusillus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | annual clutch numbers per pair observed over 2 years | clutches/yr | Both Male and Female | Adult | 43-48 pairs (2 yrs) | Gibraltar Reservoir | Exposure Factor Datasets | Santa Barbara |
Coyote (Canis latrans)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | rodent (27.0%); deer (18.3%); other stock (9.4%); rabbit (22.2%); misc. (10.5%); sheep (6.7%); bird (5.0%); vegetation (0.9%) | overall % volume of stomach contents | % | Not Reported | Not Reported | 611 | northeast region | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 9.3 | kg | Female | Juvenile | 7 | Naval Petroleum Reserves (elev., 88 - 473 m) | Exposure Factor Datasets | 1yr | Kern | 0.3 SE |
Stephens' Kangaroo Rat (Dipodomys stephensi)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | 19.00 (20-29g); 8.82 (30-39g); 8.80 (40-49g); 0.94 (60-69g) | mass specific growth rates pooled by sex and site expressed as change in body mass per mo for 4 weight classes (20-69g) | g/mo | Both Male and Female | Not Reported | 1-125/site and sex | Motte Rimrock Reserve and San Jacinto Wildlife Area | Exposure Factor Datasets | Riverside |
Ensatina (Ensatina eschscholtzii)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Longevity | range of oldest individuals recorded | yrs | Both Male and Female | Adult | 3 | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa |
San Pablo Song Sparrow (Melospiza melodia ssp. samuelis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 16.6-32.4 (salt marsh), 10.6-13.1 (altered salt marsh), 16.6-24.7 (brackish marsh), 9.1-17.5 (altered brackish marsh) | breeding population densities | pairs/ha | Both Male and Female | Adult | 26 sample areas | Suisun Bay; San Francisco Bay; San Pablo Bay | Exposure Factor Datasets | Contra Costa | breeding |
Little Pocket Mouse (Perognathus longimembris)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | seed consumption measured in field enclosures | mg/g bw/d | Both Male and Female | Not Reported | 6 individuals | Owens Valley | Exposure Factor Datasets | Inyo |
California Newt (Taricha torosa)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr. - May | time of breeding | Both Male and Female | Adult | Not Reported | Santa Monica Mountains | Exposure Factor Datasets | Los Angeles |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 109.4 | average home range - breeding | ha | Both Male and Female | Adult | 32 | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | August (begin) | period of fall migration of individuals fledged in northern CA, or at high elevations | Both Male and Female | Both Adults and Juveniles | Not Reported | throughout state | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | mammal (24%), insect (74%), other (2%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 104 pellets | agricultural lands | Exposure Factor Datasets | Yolo | breeding |
Sea Otter (Enhydra lutris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 50 | resident population density (see citation for map of study area) | animals per study area | Both Male and Female | Not Reported | 15-170 | Diablo Canyon nuclear power plant; Point San Luis to Point Buchon | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.0 | pre-weaning survival rate (mothers aged 11-14 years) | Female | Adult | 4 | Monterey Bay | Exposure Factor Datasets | 11-14 years | Monterey |
Deer Mouse (Peromyscus maniculatus ssp. gambelii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 0.28 | mean dry stomach content mass | g | Female | Juvenile | 38 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.05 SE |
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.25 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Not Reported | Not Reported | Not Reported | hunting clubs | Exposure Factor Datasets | wintering birds |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Nesting | April-September | period between first observed nest to last observed hatches | Female | Adult | 209 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 9.1 | mean density measured on both banks of river | #/linear river km | Not Reported | Adult | 3 visual counts | lower Colorado River between Laguna and Morelos Dams | Exposure Factor Datasets |
San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.70 | eggs/clutch | Female | Adult | 41 | San Gabriel Mountains, Crystal Lake (elev., 1584 m) | Exposure Factor Datasets | Los Angeles | 2.0 SD |
Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 49.98 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Male | Juvenile | 87 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | < 1yr | Monterey |