Reptiles
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 | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Time of Nesting | May-July | Female | Adult | 50 | Exposure Factor Datasets | Laboratory | ||||
| Time of Torpor or Hibernation | Oct. - Apr. | Both Male and Female | Adult | 50 | Exposure Factor Datasets | Laboratory | ||||
| Clutch or Litter Size | 4.68 | eggs/female | eggs/female | Female | Adult | 19 | Exposure Factor Datasets | 0.3 SE | Laboratory |
| 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 | Colorado desert, Chemehuevi Wash and Valley | Exposure Factor Datasets | |
| Survival/ Mortality | 2.2 | annual mortality rate for subadults and adults from 1975 and 1982 | %/yr | Both Male and Female | Both Adults and Juveniles | Not Reported | Colorado desert, Chemehuevi Wash and Valley | Exposure Factor Datasets |
| Population Density | range of 95% confidence intervals | #/km2 | Both Male and Female | Both Adults and Juveniles | 2 yrs | Colorado desert, Chuckwalla Bench | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of means for 3 yrs; based on x-ray examination (overall range = 1-8) | eggs/clutch | Female | Adult | 20-26 animals | Ivanpah Valley, Goffs | Exposure Factor Datasets | San Bernardino | |
| Clutches or Litters per year | range of means for 3 yrs; overall range = 1-3 | clutches/yr | Female | Adult | 20-26 animals | Ivanpah Valley, Goffs | Exposure Factor Datasets | San Bernardino | |
| Time of Mating/ Laying | May - June | egg laying | Female | Adult | 20-26 animals | Ivanpah Valley, Goffs | Exposure Factor Datasets | San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Not Reported | Not Reported | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | Exposure Factor Datasets | ||
| Time of Mating/ Laying | early summer | laying | Female | Not Reported | Not Reported | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | Exposure Factor Datasets | |
| Age at Sexual Maturity | yr | Female | Adult | Not Reported | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|
| Growth Rate | mean yearly growth rates using calculated carapace lengths over 4 yr intervals; range of 4 site-specific means | mm/yr | Both Male and Female | 25-69 animals/site | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets | 12-16 yrs |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | BW = 0.00049(CL)^2.795 | Body Weight (BW;150 - 1500 g) and carapace length (CL; 100-300 mm) relationship | g | Not Reported | 7 data points, each based on the average of 4 animals | Exposure Factor Datasets | 0-3 yr post-hatch | Laboratory | ||
| Body Weight - Mean | 413 | g | Not Reported | 4 | Exposure Factor Datasets | 1 yr post-hatch | 25.3 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Longevity | age estimated from scute annuli; oldest individual measured | yr | Not Reported | Adult | 574 | Mojave, Sonoran and Sinaloan deserts | 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 |
|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Nov. - Mar. | Not Reported | Adult | Not Reported | San Gabriel Mountains, Crystal Lake (elev., 1584 m) | Exposure Factor Datasets | Los Angeles | |
| Clutches or Litters per year | 1-3 | clutches/yr | Female | Adult | Not Reported | Puente Hills, Whittier (elev., 150 m) | Exposure Factor Datasets | Los Angeles |
| Clutches or Litters per year | 1-2 | clutches/yr | Female | Adult | Not Reported | San Gabriel Mountains, Crystal Lake (elev., 1584 m) | Exposure Factor Datasets | Los Angeles |
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 | Condition |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| Home Range | 19.64 | 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 | Female | Juvenile | 103 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | < 1yr | Monterey | |
| Home Range | 120.96 | 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 | 23 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | 1 yr | Monterey | breeding |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 0.254 | average home range estimated from recapture radii (mean plus 2s) for individuals with 5+ recaptures | acres | Male | Not Reported | 9 | Dona Ana county [lat., 31^o47'10" N; long., 106^o35'05"W], (elev., 1250m) | Exposure Factor Datasets |
| Home Range | 0.097 | average home range estimated from recapture radii (mean plus 2s) for individuals with 5+ recaptures | acres | Female | Not Reported | 11 | Dona Ana county [lat., 31^o47'10" N; long., 106^o35'05"W], (elev., 1250m) | Exposure Factor Datasets |
| Growth Rate | 0.034 | increase in snout-vent length, initial snout-vent length range, 48-53 mm | mm/d | Female | Not Reported | 10 | Dona Ana county [lat., 31^o47'10" N; long., 106^o35'05"W], (elev., 1250m) | Exposure Factor Datasets |
Red-spotted Garter Snake (Thamnophis sirtalis ssp. concinnus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | late July - early Sept. | Both Male and Female | Embryo | Not Reported | Willamette Valley | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | 90 | d | Female | Adult | Not Reported | Willamette Valley | Exposure Factor Datasets |
| Age at Sexual Maturity | 1 | yr | Male | Adult | Not Reported | Willamette Valley | Exposure Factor Datasets |
Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yr | Female | Adult | Not Reported | Douglas and Jefferson Counties | Exposure Factor Datasets | |
| Home Range | 35.0 | circular home range estimated from radius | acres | Male | Adult | 39 | Douglas and Jefferson Counties | Exposure Factor Datasets |
| Home Range | 22.7 | circular home range estimated from radius | acres | Female | Adult | 102 | Douglas and Jefferson Counties | Exposure Factor Datasets |
Eastern Garter Snake (Thamnophis sirtalis ssp. sirtalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see citation | figure of oxygen consumption at 5-27C | ml O2/g/hr | Both Male and Female | Not Reported | 20 | captured at Miami, Florida | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 18 | young/litter | Female | Adult | 20 | Washtenaw County | Exposure Factor Datasets |
| Population Density | 482 | #/48 acres | Both Male and Female | Both Adults and Juveniles | Not Reported | Washtenaw County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.42 | estimated from changes in body composition | cal/g/d | Both Male and Female | Not Reported | 13 | captured in Portage County, WI | Exposure Factor Datasets | hibernating | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 30.3 | g | Male | Adult | 6 | captured in Michigan and Ohio | Exposure Factor Datasets | 2.0 SE | Laboratory |
Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | 11 | Elkhorn Plain | Exposure Factor Datasets | San Luis Obispo |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 11.8 | increase in snout-vent length before retreat in Oct. | mm/mo | Both Male and Female | Hatchling | 2 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare | |
| Growth Rate | increase in snout-vent length for juvenile to 9 mo period | mm/mo | Both Male and Female | Juvenile | 7 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare | ||
| Growth Rate | 3.4 | increase in snout-vent length from 8 to 12 mo | mm/mo | Male | 3 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | 8 - 12 mo | Kern, Kings, Tulare |
| 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 mating | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare | |
| Time of Mating/ Laying | June - July | time of laying | Female | Adult | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare |
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | range of maximal rates of oxygen consumption measured at 40C, predicted for 50 g animal, at 5 collection dates | ml O2/g/hr | Both Male and Female | Adult | 11-21/date | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - Mar. | Not Reported | Not Reported | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside | ||
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside | ||
| Dietary Composition | Plant Species: Ambrosia dumosa (4.8%); Coldenia palmeri (27.6%); Croton californica (2.8%); Dalea emoryi (24.7%); Dalea schottii (13.2%); Dicoria canescens (22.5%); Arthropods (1.3%); Rodent feces (2.4%); Gravel (0.6%) | mean % of total dry matter stomach contents | % | Not Reported | Adult | 7 | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr. - July | time of potential breeding based on testis volume | Male | Adult | 365 | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino | |
| Clutches or Litters per year | 1 | clutch/yr | Female | Adult | Not Reported | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see citation | figure of resting oxygen consumption in hibernating and non-hibernating lizards at several body temperatures | cc O2/g/hr | Not Reported | Not Reported | 60 | Palm Springs | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Metabolic Rate | review | Not Reported | Not Reported | Not Reported | 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 | 9.2 | g | Not Reported | Juvenile | 65 | Thousand Palms | Exposure Factor Datasets | 7-8 mo | Riverside | 2.1 SD |
| Body Weight - Mean | 29.2 | g | Not Reported | Juvenile | 25 | Thousand Palms | Exposure Factor Datasets | 19-20 mo | Riverside | 8.6 SD |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets |
Western Fence Lizard (Sceloporus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 11.9 | g | Both Male and Female | Adult | 11 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | 0.6SE |
| Body Weight - Mean | 4.4 | g | Not Reported | Juvenile | 5 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | 0.5SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - May or June | Both Male and Female | Both Adults and Juveniles | Not Reported | red fir forest, Donner Summit, central Sierra Nevada (elev., 2200m) | Exposure Factor Datasets | |
| Time of Mating/ Laying | June - July | time of laying | Both Male and Female | Adult | Not Reported | central Sierra Nevada (elev., 1500 or 2200m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 249 | mean measured stomach content fresh weight of lizard averaging 8.1 g | mg | Female | Not Reported | 194 | valley grassland (elev., 150m), central Sierra Nevada | Exposure Factor Datasets | 180SD |
| Food Ingestion Rate | 223 | mean measured stomach content fresh weight of lizard averaging 11.3 g | mg | Male | Not Reported | 256 animals | yellow pine forest (elev., 1500m), central Sierra Nevada | Exposure Factor Datasets | 171SD |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of means for 6 monthly sampling periods; mean snout-vent length range, 68.5 - 76.8 mm | g | Male | Adult | 7-12 animals/month | Chatsworth [lat., 34^o25' N] | Exposure Factor Datasets | |
| Metabolic Rate | range of means of whole animal standard metabolic rate estimated by oxygen consumption at 10C for 6 monthly measurements on lizards captured less than 3 d | ml O2/hr | Male | Adult | 7-12 animals/month | captured at Chatsworth [lat., 34^o25' N] | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 1.17W^0.64 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 30C | cc O2/g/hr | Not Reported | Not Reported | 2-5/weight group | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | OC = 1.66W^0.57 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 35C | cc O2/g/hr | Not Reported | Not Reported | 2-5/weight group | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Nov-Dec. (begin) | Not Reported | Both Adults and Juveniles | Not Reported | Hastings Reservation, Carmel Valley | Exposure Factor Datasets | Monterey |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 2.8 | eggs/clutch | Female | Adult | 61 | Coachella Valley | Exposure Factor Datasets | Riverside | |
| Time of Mating/ Laying | Apr. - Aug. | time of breeding | Both Male and Female | Adult | Not Reported | Coachella Valley | Exposure Factor Datasets | Riverside |
Sideblotched Lizard (Uta stansburiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.2 | average clutch size based on counts of yolked follicles, eggs or corpora lutea | eggs/clutch | Female | Adult | 256 | Mesa County | Exposure Factor Datasets |
| Time of Hatching or Parturition | June - Oct. | based on hatchling observations | Not Reported | Embryo | Not Reported | Exposure Factor Datasets | ||
| Growth Rate | range of average male and female growth rates, based on increases in snout-vent length | mm/d | Both Male and Female | Hatchling | 418 - 496/sex | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | 162 | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles | |
| Clutch or Litter Size | 3.5 | eggs/clutch | Female | Adult | 162 | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | ||
| Clutch or Litter Size | 3.33 | eggs/clutch | Female | Adult | 87 | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | 0.08 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.79 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 40-50 mm | mm/mo | Female | Not Reported | 30 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Growth Rate | 0.94 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 40-50mm | mm/mo | Male | Not Reported | 10 | Phoenix South Mountain, Maricopa county | 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 | 90-169/yr | Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] | Exposure Factor Datasets | Riverside |
| 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 | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 0.60W^0.64 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 20C | cc O2/g/hr | Not Reported | Not Reported | 2-5/weight group | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | OC = 1.30W^0.47 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 30C | cc O2/g/hr | Not Reported | Not Reported | 2-5/weight group | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Orthoptera (31.3%); Coleoptera (5.7%); Hymenoptera (3.8%); Hemiptera (20.0%); Homoptera (1.9%); Lepidoptera (14.4%); Araneida (16.3%) | % volume in stomach contents | % | Not Reported | Not Reported | 8 | Owyhee Upland Province | Exposure Factor Datasets |
Island Night Lizard (Xantusia riversiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Longevity | 13.4 | estimated from largest lizard (snout-vent length, 102.5 mm)and known growth rates | yr | Both Male and Female | Adult | Not Reported | Santa Barbara Island | Exposure Factor Datasets | ||
| Growth Rate | 0.022 | increase in snout-vent length (34-40 mm size class) | mm/d | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 0.8 yr | 0.002 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Mar. - June | time of breeding | Both Male and Female | Adult | Not Reported | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Animal matter (68.8%), includes Arachnids (15.9%); Insects (50.4%); Crustaceans (2.6%); Plant matter (30.9%) | % of total content of stomachs | % | Not Reported | Not Reported | 18 | San Clemente Island | Exposure Factor Datasets |
California Whipsnake (Masticophis lateralis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 7.21 | based on oviducal egg count | eggs/female | Female | Adult | 19 | Exposure Factor Datasets | Los Angeles, San Diego |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 2 | g/d | Not Reported | Not Reported | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - Apr. | Not Reported | Not Reported | 455 | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | ||
| Body Weight - Mean | 11.5 | g | Both Male and Female | Neonate | 9 | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | 0.3 SD |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Dietary Composition | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Townsend ground squirrel (8.7%); Mountain conttontail (7.8%); Deer mouse (47.5%); Ord kangaroo rat (4.9%); Great Basin pocket mouse (5.8%); Montane vole (9.7%); House mouse (7.8%); Other species (7.8%) | % frequency of prey ingested based on stomach content and scat analysis | % | Not Reported | Not Reported | 103 items/405 captures | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets |
Common Garter Snake (Thamnophis sirtalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Anurans (67%); Fish (11%); Leeches (22%) | % of stomachs containing prey item | % | Not Reported | Not Reported | 36 | Eagle Lake (elev., 1555m) [lat., 40^o33'24"N; long., 120^o47'5" W] | Exposure Factor Datasets | Lassen |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 12.5 | young/litter | Female | Adult | 23 | captured at Wood Buffalo National Park, Canada | Exposure Factor Datasets | 4.95 (SD) | Laboratory |
Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | time from egg to hatching at 25-30C | d | Not Reported | Embryo | 13 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 5.69 | average clutch size | eggs/clutch | Female | Adult | 81 clutches | Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek | Exposure Factor Datasets |
| Clutches or Litters per year | range of average number of clutches/yr | clutches/yr | Female | Adult | 81 clutches | Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 854 | maximum reported body weight | g | Male | Adult | 450 | largest turtle found near Huron | Exposure Factor Datasets | Fresno |
Western Skink (Eumeces skiltonianus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.7 | eggs/clutch | Female | Adult | 6 | Exposure Factor Datasets | San Bernardino |
California Whipsnake (Masticophis lateralis), Common Garter Snake (Thamnophis sirtalis)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/female | Female | Adult | 5 | Exposure Factor Datasets | Los Angeles, Mariposa, Tuolumne |
San Francisco Garter Snake (Thamnophis sirtalis ssp. tetrataenia)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | d | Female | Adult | 6 | Dallas and Fort Worth Zoos, TX | Exposure Factor Datasets | Laboratory |
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