Reptiles
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | based on eggs in oviduct | eggs/clutch | Female | Adult | Not Reported | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino | |
| Duration of Incubation or Gestation | 75 | time from egg to hatching | d | Not Reported | Hatchling | Not Reported | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino |
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | Exposure Factor Datasets | ||
| Time of Mating/ Laying | Apr. - May | time of breeding | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
| Time of Mating/ Laying | June - July | time of laying | Female | Adult | 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 | 46.0 | g | Both Male and Female | Both Adults and Juveniles | 11 | Thousand Palms | Exposure Factor Datasets | 31-32 mo | Riverside | 13.4 SD |
| Body Weight - Mean | 43.3 | g | Both Male and Female | Adult | 5 | Thousand Palms | Exposure Factor Datasets | 43-44 mo | Riverside | 9.7 SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Plant Species: Ambrosia dumosa (19.6%); Coldenia palmeri (10.1%); Dalea schottii (14.4%); Euphorbia polycarpa (4.5%); Geraea canescens (3.1%); Larrea divaricata (32.7%); Palafoxia linearis (11.7%); Rafinesquia neomexicana (1.6%); Schismus barbatus (0.7%);Arthropods (0.5%); Rodent feces (0.5%); Shed skin (0.6%) | mean % of total dry matter stomach contents | % | Not Reported | Adult | 6 | Thousand Palms | Exposure Factor Datasets | Riverside |
| Dietary Composition | Plant Species: Ambrosia dumosa (15.4%); Coldenia palmeri (68.3%); Croton californica (2.8%); Dalea emoryi (5.9%); Dalea schottii (5.6%); Arthropods (1.3%); Gravel (0.8%) | mean % of total dry matter stomach contents | % | Not Reported | Hatchling | 12 | Thousand Palms | Exposure Factor Datasets | Riverside |
Western Fence Lizard (Sceloporus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 22-23 | mo | Both Male and Female | Adult | Not Reported | Hastings Reservation, Carmel Valley | Exposure Factor Datasets | Monterey |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 11.5 | g | Both Male and Female | Adult | 20 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | 0.4SE | ||
| Metabolic Rate | 0.220 | field metabolic rate estimated by carbon dioxide production, using doubly labelled water | ml CO2/g/hr | Both Male and Female | Adult | 11 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | reproductively active | 0.019SE |
| Metabolic Rate | 0.198 | field metabolic rate estimated by carbon dioxide production, using doubly labelled water | ml CO2/g/hr | Both Male and Female | Adult | 11 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | reproductively inactive | 0.034SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | Aug. - Oct. | time of hatching | Both Male and Female | Hatchling | Not Reported | central Sierra Nevada (elev., 1500 or 2200m) | Exposure Factor Datasets | |
| Clutches or Litters per year | clutches/yr | Female | Adult | Not Reported | central Sierra Nevada (elev., 1500 or 2200m) | Exposure Factor Datasets | ||
| Age at Sexual Maturity | 20 | mo | 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 | 219 | mean measured stomach content fresh weight of lizard averaging 8.6 g | mg | Female | Not Reported | 184 animals | yellow pine forest (elev., 1500m), central Sierra Nevada | Exposure Factor Datasets | 182SD |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | range of means of whole body standard metabolic rate estimated by oxygen consumption at 16C 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 |
| Metabolic Rate | range of means of whole-body standard metabolic rate estimated by oxygen consumption at 35C 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 = 1.76W^0.68 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 40C | 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 |
|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July - Sept. | Not Reported | Hatchling | 93 | Strawberry Canyon, Berkeley Hills | Exposure Factor Datasets |
| Time of Torpor or Hibernation | Nov. - Mar. | Not Reported | Both Adults and Juveniles | 93 | Strawberry Canyon, Berkeley Hills | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Not Reported | Not Reported | 60 | U.S. International University Campus | Exposure Factor Datasets | San Diego | ||
| Metabolic Rate | 0.24 | oxygen consumption measured in laboratory at 23C on newly caught (1 wk) lizards | cc O2/g/hr | Not Reported | Not Reported | 20 | U.S. International University Campus | Exposure Factor Datasets | San Diego |
| 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 | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July - Sept. | Both Male and Female | Hatchling | Not Reported | Hastings Reservation | Exposure Factor Datasets | Monterey |
Coachella Valley Fringe-toed Lizard (Uma inornata)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Population Density | #/ha | Not Reported | Not Reported | 0-43 animals/10 plots (2.25 ha) | Palm Springs, Indio | Exposure Factor Datasets | Riverside |
| 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) |
Sideblotched Lizard (Uta stansburiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | based on presence of mature spermazoa or yolked ovarian follicles, oviducal eggs or corpora lutea; snout-vent length = 40-43 mm | yr | Both Male and Female | Adult | 275 | Snake River Valley (elev., 530-750m) | Exposure Factor Datasets |
| Time of Mating/ Laying | Apr.-May and June-July | time of laying | Female | Adult | 124 | Snake River Valley (elev., 530-750m) | Exposure Factor Datasets | |
| Clutches or Litters per year | clutches/yr | Female | Adult | 124 | Snake River Valley (elev., 530-750m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 10 | mo | Female | Adult | 162 | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles | |
| Time of Hatching or Parturition | July - Oct. | Both Male and Female | Hatchling | Not Reported | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles | ||
| Duration of Incubation or Gestation | 63 | time between laying and hatching | d | Both Male and Female | Embryo | Not Reported | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | egg weight | g | Not Reported | Embryo | 13 | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | ||
| Population Density | 175 | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | ||
| Home Range | 0.219 | estimated using probability density function (95% confidence interval) | ha | Male | Adult | 9 | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | 0.06 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.31 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 50-56mm | mm/mo | Female | Not Reported | 2 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Growth Rate | 0.58 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 50-58mm | mm/mo | Male | Not Reported | 22 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Time of Hatching or Parturition | May-June | Not Reported | Hatchling | Not Reported | 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 2 yrs | deaths/100 lizards/d | Not Reported | Adult | 27-51/yr | San Joaquin Valley (elev., 460m), [lat., 37^o38'N; long., 121^o29' W] | Exposure Factor Datasets | San Joaquin |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of average egg weights for clutch sizes of 2-6. | g | Both Male and Female | Embryo | 1-28 clutches | 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 | 35-72/sex | Exposure Factor Datasets | |
| Growth Rate | range of average male and female growth rates, based on increases in snout-vent length (40-49 mm) | mm/d | Both Male and Female | Adult | 17-21/sex | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 1.32W^0.54 | 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 | |
| Metabolic Rate | OC = 2.19W^0.55 | equation relating resting oxygen consumption (OC) to body weight (W, g) at 40C | 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 | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.6 | average clutch size | eggs/female | Female | Adult | 16 | Corral Hollow Road | Exposure Factor Datasets | Contra Costa |
| Clutch or Litter Size | 4.3 | average clutch size | eggs/female | Female | Adult | 27 | Del Puerto Canyon Road | Exposure Factor Datasets | Stanislaus |
Island Night Lizard (Xantusia riversiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.046 | increase in snout-vent length (40-50 mm size class) | mm/d | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 1.3 yr | 0.003 SE |
| Growth Rate | 0.040 | increase in snout-vent length (50-60 mm size class) | mm/d | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 2.0 yr | 0.003 SE |
| Growth Rate | 0.030 | increase in snout-vent length (60-70 mm size class) | mm/d | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 2.9 yr | 0.002 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | 1458 | #/ha | Both Male and Female | Both Adults and Juveniles | 120 marked animals | San Clemente Island | Exposure Factor Datasets | 103 SE | ||
| Growth Rate | 0.05 | increase in snout-vent length during 1st yr | mm/d | Both Male and Female | 14 | San Clemente Island | Exposure Factor Datasets | 0-1 yr | ||
| Growth Rate | 0.03 | increase in snout-vent length during 2nd yr | mm/d | Both Male and Female | 12 | San Clemente Island | Exposure Factor Datasets | 1-2 yr |
Western Skink (Eumeces skiltonianus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.7 | based on oviducal egg counts | eggs/clutch | Female | Adult | 6 | Exposure Factor Datasets | San Bernardino | ||
| Body Weight - Mean | 11.275 | mean snout-vent length = 78.7mm | g | Female | Adult | 6 | Exposure Factor Datasets | San Bernardino | 2.443SD | |
| Body Weight - Mean | 0.669 | egg weight | g | Not Reported | Embryo | 6 | Exposure Factor Datasets | San Bernardino | 0.042SD |
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 |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Townsend ground squirrel (27.7%); Mountain conttontail (31.6%); Deer mouse (19.0%); Ord kangaroo rat (5.4%); Great Basin pocket mouse (1.8%); Montane vole (6.1%); House mouse (2.8%); Other species (5.5%) | % biomass 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 | |||
| Population Density | 1.2 | mean density in 9 habitat types | #/ha | Both Male and Female | Not Reported | Not Reported | Snake Rive Birds of Prey Area, southwestern ID | Exposure Factor Datasets | 0.6 SD | ||
| Food Ingestion Rate | 1.6 | % body weight consumed per day | % | Not Reported | Not Reported | 43 | captive in outdoor enclosures at Snake River Birds of Prey Area | Exposure Factor Datasets | Age class 1 and older | 0.82 SD | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 45.0 | g | Male | Juvenile | 44 | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | 38.9 SD |
| Body Weight - Mean | 59.8 | g | Female | Juvenile | 59 | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | 43.0 SD |
Common Garter Snake (Thamnophis sirtalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2.6 | g | Not Reported | Neonate | 187 | captured at Wood Buffalo National Park, Canada | Exposure Factor Datasets | 0.4 SD | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 41 | g | Both Male and Female | Both Adults and Juveniles | 160 | Kyburz Flat | Exposure Factor Datasets | Sierra |
Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Home Range | median daily movement | m | Not Reported | Adult | 4 | Arroyo Laguna-Oak Knoll Creek, San Simeon Point | Exposure Factor Datasets | San Luis Obispo |
| Home Range | mean daily movement | m | Not Reported | Adult | 4 | Arroyo Laguna-Oak Knoll Creek, San Simeon Point | Exposure Factor Datasets | San Luis Obispo |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | range in density estimates at 2 locations | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Trinity River | Exposure Factor Datasets | Trinity |
Desert Tortoise (Gopherus agassizi)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 59 | #/km2 | Both Male and Female | Both Adults and Juveniles | Piute Valley | Exposure Factor Datasets | 19-173 (95% CI) | ||
| Survival/ Mortality | range of per capita mortality rates (k) for 2 time periods | /yr | Both Male and Female | Both Adults and Juveniles | 115-130 animals/time period | Piute Valley | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 1128 | g | Not Reported | 4 | Exposure Factor Datasets | 2 yr post-hatch | 57.6 SE | Laboratory | |
| Body Weight - Mean | 1452 | g | Not Reported | 4 | Exposure Factor Datasets | 3 yr post-hatch | 99.4 SE | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | 19 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 2.3 | annual mortality rate for subadults and adults from 1973 and 1982 | %/yr | Both Male and Female | Both Adults and Juveniles | Not Reported | 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 | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.17 | estimated by x-ray examination | eggs/clutch | Female | Adult | 35 clutches | Fenner Valley, Goffs (elev., 732m) | Exposure Factor Datasets | San Bernardino | 0.22SE |
| Clutches or Litters per year | 1.9 | Female | Adult | 19 animals | Fenner Valley, Goffs (elev., 732m) | Exposure Factor Datasets | San Bernardino | 0.1SE |
| 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 |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - Dec. (begin), Mar.-June (end) | Both Male and Female | Adult | 9 | San Pedro River Valley, Pinal County [lat., 32^o38'N; long., 110^o34'W] | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Population Density | #/km2 | Not Reported | Not Reported | Not Reported | Beaver Dam Slope | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | population density ranges in % of area (605 mi2) surveyed | #/mi2 | Both Male and Female | Both Adults and Juveniles | Not Reported | Chocolate Mountains Aerial Gunnery Range | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Home Range | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | insecta (97%); arachnida (0.8%); plants (0.3%); unidentified (1.6%) | % of total food dry weight, based on stomach contents | % | Not Reported | Both Adults and Juveniles | 18 | southern Washoe County (elev., 1150-1450m) | 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 | CS = 0.378SVL - 17.04 | regression equation relating clutch size (CS; # eggs/oviduct) to snout-vent length (SVL, mm) of female. | eggs/clutch | Female | Adult | 49 | Puente Hills and San Gabriel River, Whittier | Exposure Factor Datasets | Los Angeles |
Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|---|---|
| Home Range | 76.25 | 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 | 48 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | 1 yr | Monterey | breeding |
| Home Range | 131.92 | 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 | 36 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | 1 yr | Monterey | nonbreeding |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.028 | increase in snout-vent length, initial snout-vent length range, 41-46 mm | mm/d | Male | Not Reported | 10 | Dona Ana county [lat., 31^o47'10" N; long., 106^o35'05"W], (elev., 1250m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 2.5 | based on number of enlarged vitellogenic ovarian follicles (>2 mm) or oviductal eggs during a "dry" year | eggs/clutch | Female | Adult | 8 | Anapra, Dona Ana county | Exposure Factor Datasets | 0.38 |
Red-spotted Garter Snake (Thamnophis sirtalis ssp. concinnus)
| 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 | Willamette Valley | Exposure Factor Datasets | |
| Clutch or Litter Size | 8.2 | determined by palpation | young/litter | Female | Adult | 18 | 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 | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Not Reported | 60 | captured at Winnipeg, Manitoba | Exposure Factor Datasets | Laboratory | ||
| Metabolic Rate | see citation | figure of oxygen consumption at 5-27C | ml O2/g/hr | Both Male and Female | Not Reported | 60 | captured at Winnipeg, Manitoba | Exposure Factor Datasets | Laboratory |
Eastern Garter Snake (Thamnophis sirtalis ssp. sirtalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 52.1 | g | Female | Adult | 3 | captured in Michigan and Ohio | Exposure Factor Datasets | non-pregnant | 4.4 SE | Laboratory | |
| Metabolic Rate | 0.059 | resting oxygen consumption at 25C | cm3 O2 STP/hr/g | Male | Adult | 6 | captured in Michigan and Ohio | Exposure Factor Datasets | 0.001 SE | Laboratory |
San Francisco Garter Snake (Thamnophis sirtalis ssp. tetrataenia)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 yr, 273d | yr,d | Female | Adult | 1 | Dallas and Ft. Worth Zoos | Exposure Factor Datasets | Laboratory | |
| Body Weight - Mean | range of means from 6 breedings | g | Not Reported | Neonate | 6 groups of young | Dallas and Ft. Worth Zoos | Exposure Factor Datasets | Laboratory |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3 | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare | ||
| Duration of Incubation or Gestation | 57 | egg to hatching | d | Not Reported | Hatchling | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 1.6 | increase in snout-vent length from 8 to 12 mo | mm/mo | Female | 2 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | 8 - 12 mo | Kern, Kings, Tulare | |
| Growth Rate | 2.0 | increase in snout-vent length | mm/mo | Male | Adult | 36 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
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