Reptiles
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | log weight = 0.017 SVL - 0.22 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Not Reported | Juvenile | Not Reported | Palm Desert | Exposure Factor Datasets |
| Body Weight - Mean | log weight = 0.017 SVL - 0.11 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Not Reported | Juvenile | Not Reported | Palm Desert | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 44 | incubation period at 36C | d | Not Reported | Embryo | 60 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of means during 5 stages of reproductive cycle | g | Female | Adult | 7-15/stage | Southwest Herpetlogical Research and Sales, Calimesa | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 1558 | home range estimated using the convex polygon method | m2 | Female | Adult | 5 | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | estimated feeding rate to support energy expenditure measured in field | mg dry food/g/d | Not Reported | Adult | 7-11/time period | Thousand Palms | Exposure Factor Datasets | Riverside | |
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside | ||
| Food Ingestion Rate | estimated feeding rate to support energy expenditure measured in field | mg dry food/g/d | Not Reported | Hatchling | 7-9/time period | Thousand Palms | Exposure Factor Datasets | Riverside | |
| Growth Rate | g/d | Not Reported | Hatchling | 5 - 52/sampling time | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | range of standard metabolic rates (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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | 450 | #/ha | Not Reported | Both Adults and Juveniles | 45 lizards/10 quadrants (100m2) | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - Mar. | Not Reported | Not Reported | 95 | Palm Springs | Exposure Factor Datasets | Riverside |
Western Fence Lizard (Sceloporus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see citation | figure of standard metabolic rate measured as resting oxygen consumption at various temperatures (20-40C) | cc O2/g/hr | Not Reported | Adult | 31 | Exposure Factor Datasets | Orange, Riverside | |
| Metabolic Rate | 0.422 (20C); 0.783 (25C); 1.120 (30C); 1.315 (35C); 1.253 (40C) | "aerobic increment during activity"; mean oxygen consumption during 2 minutes of burst activity at various temperatures (20-40C) | cm3 O2/g/hr | Not Reported | Adult | 5-8 animals/temperature | Exposure Factor Datasets | Orange, Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 11.3 | eggs/clutch | Female | Adult | 48 | yellow pine forest, central Sierra Nevada (elev., 1500m) | Exposure Factor Datasets | 0.41SE | |
| Duration of Incubation or Gestation | 59 | d | Both Male and Female | Embryo | Not Reported | yellow pine forest, central Sierra Nevada (elev., 1500m) | Exposure Factor Datasets | ||
| Time of Mating/ Laying | Apr. (begin) | time of mating | Both Male and Female | Adult | Not Reported | yellow pine forest, central Sierra Nevada (elev., 1500m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 11.31 | average snout-vent length = 68.05 mm | g | Male | Not Reported | 256 animals | yellow pine forest (elev., 1500m), central Sierra Nevada | Exposure Factor Datasets | 3.88SD |
| Body Weight - Mean | 8.61 | average snout-vent length = 62.67 mm | g | Female | Not Reported | 184 animals | yellow pine forest (elev., 1500m), central Sierra Nevada | Exposure Factor Datasets | 4.26SD |
| Food Ingestion Rate | 213 | mean measured stomach content fresh weight of lizards averaging 9.6 g | mg | Male | Not Reported | 295 | valley grassland (elev., 150m), central Sierra Nevada | Exposure Factor Datasets | 130SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | 39 - 59 | Table Mountain, Wrightwood (elev., 2200m) and Mojave desert, Pearblossom (elev., 1330m) | Exposure Factor Datasets | |||
| Duration of Incubation or Gestation | see citation | figure of relationship between egg mass and incubation time | Not Reported | Embryo | Not Reported | Exposure Factor Datasets | Laboratory | ||
| Growth Rate | see citation | figure of relationship between mass-specific growth rate and hatchling mass | g/d | Not Reported | Hatchling | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 7.00 | eggs/clutch | Female | Adult | 8 | "lowland" habitat | Exposure Factor Datasets | San Diego | 0.50 |
| Clutch or Litter Size | 7.50 | eggs/clutch | Female | Adult | 10 | "montane" habitat, (elev., 1830m) | Exposure Factor Datasets | San Diego | 0.62 |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 8.2 | eggs/clutch | Female | Adult | Not Reported | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 0.52W^0.54 | 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Overall Total (673); Arthropod Total (268); Vertebrate Total (2); Plant Total (360): Includes; Insects, Coleoptera (12); Diptera (1); Hemiptera (16); Homoptera (10); Hymenoptera (259); Lepidoptera (1); Neuroptera (3); Orthoptera (1); Lizards, Phrynosomatidae (1); Snakes, Crotalidae (1); Plants, Asteraceae (107); Boraginaceae (99); Euphorbiaceae (2); Fabaceae (33) and Loasaceae (119) | total numbers of food items found in stomach contents | # | Male | Adult | 17 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside |
| Dietary Composition | Overall Total (837); Arthropod Total (383); Vertebrate Total (1); Plant Total (277): Includes; Insects, Coleoptera (8); Diptera (2); Hemiptera (34); Homoptera (45); Hymenoptera (461); Neuroptera (1); Lizards, Phrynosomatidae (2); Plants, Asteraceae (85); Boraginaceae (65); Loasaceae (128) | total numbers of food items found in stomach contents | # | Female | Adult | 17 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - Mar. | Not Reported | Not Reported | Not Reported | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside |
Sideblotched Lizard (Uta stansburiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Condition |
|---|---|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | range of % "survival to next season" over 5 yrs at 2 sites | % | Both Male and Female | Adult | 39-110/date and site | Exposure Factor Datasets | 9 mo | |||
| Clutch or Litter Size | range of monthly average clutch sizes over 3 yrs | eggs/clutch | Female | Adult | 13-48 lizards/10 dates | Exposure Factor Datasets | ||||
| Longevity | 100 | maximum longevity observed for marked hatchlings | wks | Not Reported | Both Adults and Juveniles | Not Reported | Exposure Factor Datasets | |||
| Survival/ Mortality | range of % "survival to maturity" over 5 years for males and females | % | Both Male and Female | Juvenile | 17-65/date and sex | Exposure Factor Datasets | ||||
| Clutches or Litters per year | at least 3 | clutches/yr | Female | Adult | Not Reported | Exposure Factor Datasets | ||||
| Population Density | range of densities estimated over 6 yrs at two sites | #/acre | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | breeding | |||
| Duration of Incubation or Gestation | time from egg laying to hatching | d | Both Male and Female | Embryo | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2.4 | g | Both Male and Female | Adult | 5 | El Comitan, Baja California Sur | Exposure Factor Datasets | MEXICO | 0.4 SE |
| Food Ingestion Rate | 26.1 | mg dry mass diet/g/d | Both Male and Female | Adult | Not Reported | El Comitan, Baja California Sur | Exposure Factor Datasets | MEXICO | 11.7 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Adult | 11 | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | ||
| Time of Mating/ Laying | Apr. - June | time of breeding | Both Male and Female | Adult | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets | |
| Time of Mating/ Laying | May - July | time of laying | Both Male and Female | Adult | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 4.29 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 21-35mm | mm/mo | Not Reported | Not Reported | 62 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Growth Rate | 2.93 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 30-40mm | mm/mo | Female | Not Reported | 10 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Growth Rate | 5.19 | growth rate estimated by increase in snout-vent length (mm), snout-vent length range 30-40mm | mm/mo | Male | Not Reported | 7 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | range of average densities estimated over 2 yrs | #/ha | Not Reported | Not Reported | Not Reported | Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] | Exposure Factor Datasets | Riverside |
| Population Density | range of average densities estimated over 2 yrs | #/ha | Not Reported | Not Reported | Not Reported | Panamint Valley (elev., 790m), [lat., 36^o20'N; long., 117^o30' W] | Exposure Factor Datasets | Inyo |
| Population Density | range of average densities estimated over 2 yrs | #/ha | Not Reported | Not Reported | Not Reported | 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 |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of monthly means for 2 size classes measured over 3 yrs. | eggs/clutch | Female | Adult | 3 - 95 clutches/mo | Rock Valley, Nye County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May - Aug. | time of laying | Female | Adult | 162 | 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 | Condition | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 163 | oxygen consumption measured at 30C | mm3 O2/g/hr | Not Reported | Both Adults and Juveniles | 4 | Exposure Factor Datasets | fasted 3d | 13.2 SE | Laboratory |
Island Night Lizard (Xantusia riversiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | BW = -0.26 + 0.000028(SVL)^3 | lizard body weight (BW; g) as an exponential function of snout-vent length (SVL,mm) | g | Both Male and Female | Both Adults and Juveniles | 792 | Santa Barbara Island | Exposure Factor Datasets | non-pregnant | |
| Age at Sexual Maturity | 2.5 | yr | Male | Adult | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 0.2 SE | ||
| Age at Sexual Maturity | 2.9 | yr | Female | Adult | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 0.2 SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Both Male and Female | Adult | Not Reported | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | 14 | wks | Not Reported | Embryo | Not Reported | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
| Time of Hatching or Parturition | Sept. | Not Reported | Hatchling | Not Reported | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Clutch or Litter Size | review | Female | Adult | Not Reported | Exposure Factor Datasets |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 33.5 | g | Both Male and Female | Juvenile | 68 | Exposure Factor Datasets | 15 d | 6 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 0.198T - 0.126 | active oxygen consumption (OC) as a function of body temperature (T; 10-29C) | ml O2/g/hr | Not Reported | Adult | 14 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | OC = 0.0101T + 0.162 | active oxygen consumption (OC) as a function of body temperature (T; 29-35C) | ml O2/g/hr | Not Reported | Adult | 14 | Exposure Factor Datasets | Laboratory |
| 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 |
| Population Density | 0.6 | #/acre | Not Reported | Not Reported | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Townsend ground squirrel (10.6%); Mountain conttontail (11.6%); Deer mouse (43.3%); Ord kangaroo rat (5.8%); Great Basin pocket mouse (5.8%); Montane vole (9.6%); House mouse (6.7%); Other species (6.7%) | % frequency of prey based on stomach contents and scats | % | Not Reported | Not Reported | 104 prey items/455 snakes | 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 |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Slug (1.4%); Earthworm (23.6%); Frog, Rana (6.9%); Toad, Bufo and Scaphiopus (30.5%); Tree Toad (20.8%); Leech (4.0%); Tadpole (10%); Minnow (1.4%); Unidentified fish (1.4%) | % of total recorded food items | % | Not Reported | Not Reported | 48 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of site means based on sum of live and dead young and undeveloped eggs at parturition | young/litter | Female | Adult | 4 - 30/site | Exposure Factor Datasets | CANADA |
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 (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 |
| Dietary Composition | Algae (4.00); Other vegetation (0.50); Crustacea (5.55); Odonata nymphs (5.00); Ephemeroptera nymphs (2.91); Trichoptera larvae (7.40); Hemiptera nymphs (0.10); Hemiptera adults (0.10); Orthoptera adults (0.20); Coleoptera larvae (0.75); Coleoptera adults (0.10); Diptera larvae (9.15); Osteichthyes (10.90); Amphibia (7.80); Other (0.50) | volume (cc) of food items in stomach contents determined by water displacement | cc | Male | Adult | 20 | Hayfork Creek (elev., 750m) | Exposure Factor Datasets | Trinity |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | 7 | Exposure Factor Datasets | |||
| Time of Mating/ Laying | June - Aug. | time of egg deposition | Female | Adult | Not Reported | Exposure Factor Datasets |
Desert Tortoise (Gopherus agassizi)
| 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 | 38 - 112 animals/site | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets | 4-8 yrs |
| 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 | 36 - 105 animals/site | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets | 8-12 yrs |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.56 | estimated by x-raying females | eggs/female | Female | Adult | 9 | Fenner Valley, Goffs (elev., 680m) {lat., 34^o51'N; long., 115^o09'W] | Exposure Factor Datasets | San Bernardino | 1.94 SD |
| Metabolic Rate | range of mean field metabolic rates, estimated using doubly labeled water | kJ/d | 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 |
|---|---|---|---|---|---|---|---|---|
| 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 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 |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Female | Adult | Not Reported | Rock Valley, Nye County (elev., 1020m) | Exposure Factor Datasets | |
| Clutch or Litter Size | determined by x-ray examination of females | eggs/clutch | Female | Adult | 3 animals | Rock Valley, Nye County (elev., 1020m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | 0.25 | #/acre | Both Male and Female | Not Reported | Not Reported | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | Exposure Factor Datasets |
| Home Range | 50 | acres | Both Male and Female | Not Reported | NE | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr.-May and Aug.-Nov. | Both Male and Female | Adult | 50 | Exposure Factor Datasets | Laboratory |
San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 11.1 | average snout-vent length = 67mm | g | Not Reported | Adult | Not Reported | Puente Hills, Whittier (elev., 150 m) | Exposure Factor Datasets | Los Angeles |
| Time of Torpor or Hibernation | Nov.-Feb. | Not Reported | Adult | Not Reported | Puente Hills, Whittier (elev., 150 m) | Exposure Factor Datasets | Los Angeles |
Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr. - June | time of mating, based on observations of copulation and courtship behavior | Both Male and Female | Adult | Not Reported | Hastings Reservation, Carmel Valley (elev., 550m) | Exposure Factor Datasets | Monterey |
| 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 |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | 50.2 | #/ha | Both Male and Female | Both Adults and Juveniles | 45 marked lizards | Dona Ana county [lat., 31^o47'10" N; long., 106^o35'05"W], (elev., 1250m) | Exposure Factor Datasets | |
| 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 |
Red-spotted Garter Snake (Thamnophis sirtalis ssp. concinnus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Feb. - Apr. | time of breeding | Both Male and Female | Adult | Not Reported | Willamette Valley | Exposure Factor Datasets |
| Time of Hatching or Parturition | late July - early Sept. | Both Male and Female | Embryo | Not Reported | Willamette Valley | Exposure Factor Datasets |
Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 14.5 | young/litter | Female | Adult | 132 | Douglas and Jefferson Counties | Exposure Factor Datasets |
| Age at Sexual Maturity | 2 | yr | Female | Adult | Not Reported | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Not Reported | 20 | captured at Miami, Florida | 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 | 20 | captured at Miami, Florida | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | 2.07 | acres | Both Male and Female | Not Reported | 1609 | Washtenaw County | Exposure Factor Datasets |
| Clutch or Litter Size | 18 | young/litter | Female | Adult | 20 | Washtenaw County | Exposure Factor Datasets |
Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | Elkhorn Plain (elev., 685-765m) | Exposure Factor Datasets | San Luis Obispo |
| 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 | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare | |
| Time of Torpor or Hibernation | Oct. - Mar. | Not Reported | Not Reported | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | 11 | Elkhorn Plain | Exposure Factor Datasets | San Luis Obispo |
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