Reptiles
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 50 | rate estimated from intake of preformed water and water content of food for animals maintaining weight on natural vegetation | g fresh wt food//kg/d | Not Reported | Not Reported | Not Reported | Palm Desert and Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Plants: Dicoria canescens (50%); Flower heads of composite (25%); Dalea emoryi ? (10%); Coldenia sp. (10%) | % volume of total stomach contents | % | Not Reported | Not Reported | 8 | Coachella Valley | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Home Range | minimum area versus probability estimate for 3 sites; estimate of area encompassing 95% of total space utilization | m2 | Male | Adult | Not Reported | Coachella Valley | Exposure Factor Datasets | Riverside |
| Home Range | minimum area versus probability estimates for 3 sites; estimate of area encompassing 95% of total space utilization | m2 | Female | Adult | Not Reported | Coachella Valley | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 73 | annual survivorship | % | Not Reported | Hatchling | 37 marked | Thousand Palms | Exposure Factor Datasets | 0-2 mo | Riverside |
| 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 Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 47 | average snout-vent length = 11.2 cm | g | Female | Adult | 4 - 26/sampling time | Thousand Palms | Exposure Factor Datasets | Riverside |
| 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 = 0.010 SVL + 0.46 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Female | Adult | Not Reported | Palm Desert | Exposure Factor Datasets |
| Body Weight - Mean | log weight = 0.013 SVL + 0.24 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Female | Adult | Not Reported | Palm Desert | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - Mar. | Not Reported | Adult | Not Reported | Phoenix South Mountain, Maricopa County | Exposure Factor Datasets | ||
| Growth Rate | 2.7 | growth rate based on changes in snout-vent length (48-73 mm) | mm/mo | Not Reported | Juvenile | 22 | Phoenix South Mountain, Maricopa County | Exposure Factor Datasets |
Western Fence Lizard (Sceloporus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | 1 | clutches/yr | Female | Adult | 93 | Strawberry Canyon, Berkeley Hills | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.185 | resting metabolic rate at 35C, 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 active | 0.015SE |
| Metabolic Rate | 0.300 | resting metabolic rate at 35C, estimated as carbon dioxide production rate | ml CO2/g/hr | Not Reported | Juvenile | 4 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | 0.052SE | |
| Metabolic Rate | 0.192 | resting metabolic rate at 35C, estimated as carbon dioxide production rate | ml CO2/g/hr | Both Male and Female | Adult | 19 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | reproductively inactive | 0.017SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 53 | d | Both Male and Female | Embryo | Not Reported | yellow pine forest, central Sierra Nevada (elev., 2200m) | 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 | Condition |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | CS = 0.261(SVL) - 10 | regression equation relating clutch size(CS) to female snout-vent length (SVL; mm) | eggs/clutch | Female | Adult | 27 | Hastings Reservation | Exposure Factor Datasets | Monterey | |
| 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 | |
| Body Weight - Mean | BW = 2.72 - 0.21(SVL) + 0.0049(SVL)^2 | equation relating body weight (BW; g) to snout-vent length (SVL; mm) | g | Female | Both Adults and Juveniles | 58 | Hastings Reservation | Exposure Factor Datasets | Monterey | non-breeding |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Nov.-Mar. | hibernation duration approximates 100 d | Not Reported | Both Adults and Juveniles | >12 | Victorville | Exposure Factor Datasets | ||
| Metabolic Rate | Log OC = 0.044T + 0.64 | regression equation for oxygen consumption (OC in ul O2/g/hr; log base 10) at various temperatures (T, 0 - 15 C) | ul O2/g/hr | Not Reported | Adult | 5-8/temperature | Victorville | Exposure Factor Datasets | hibernating |
| 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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|
| Home Range | m2 | Male | Adult | 24 | Hopland Field Station (160 km N of San Francisco) | Exposure Factor Datasets | breeding |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | range of means of absolute growth rates | g/d | Both Male and Female | Hatchling | Not Reported | Exposure Factor Datasets | 3 d to 3 wks | 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 | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Home Range | 437 | average home range estimated using minimum convex polygon method (snout-vent length, 70+mm) | m2 | Female | Adult | 37 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside | 168 (95CI) |
| Home Range | 146 | average home range estimated using minimum convex polygon method (snout-vent length, 51-69mm) | m2 | Female | Juvenile | 15 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside | 56 (95CI) |
| Home Range | 45 | average home range estimated using minimum convex polygon method (snout-vent length,0-50mm) | m2 | Female | Hatchling | 11 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside | 11 (95CI) |
Sideblotched Lizard (Uta stansburiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 4896 | average and range of home ranges at 2 sites over 6 yrs, estimated using minimum polygon method (mark and recapture technique) | sq. ft. | Male | Adult | 7-26 lizards/site and yr | Exposure Factor Datasets | |
| Body Weight - Mean | range of average weights for snout-vent length size classes of 20-41 mm | g | Female | Juvenile | 1-88 lizards/size class and date | Exposure Factor Datasets | ||
| Home Range | 1497 | average and range of home ranges at 2 sites over 6 yrs, estimated using minimum polygon method (mark and recapture technique) | sq. ft. | Female | Adult | 6-14 lizards/yr and site | Exposure Factor Datasets | |
| Body Weight - Mean | range of average weights for snout-vent length size classes of 46-57 mm | g | Male | Adult | 1-24 lizards/size class and date | Exposure Factor Datasets | ||
| Home Range | 0.49 | home range estimated using probability density function (95%) | acre | Male | Adult | Not Reported | Exposure Factor Datasets | |
| Body Weight - Mean | range of average weights for snout-vent length size classes of 42-53 mm | g | Female | Adult | 1-29 lizards/size class and date | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Araneae (1.2); Acari (1.8); Solifugae (1.0); Hexapoda (26.3); Collembola (2.5); Thysanura (1.0); Orthoptera (1.2); Dermaptera (1.0); Isoptera (15); Thysanoptera (1.5); Hemiptera (2.3); Homoptera (1.8); Neuroptera (1.3); Coleoptera (2.2); Lepidoptera (1.7); Diptera (1.3); Hymenoptera (9.3); Insect eggs (9.0); Plants (1.0) | mean number of prey eaten per lizard eating such prey (estimated from stomach contents) | # prey/lizard | Not Reported | Not Reported | 266 | Eddy and Lea counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | 1363 | Rock Valley, Nye county | Exposure Factor Datasets | ||
| Time of Mating/ Laying | Apr. - July | time of laying | Female | Adult | 1363 | Rock Valley, Nye county | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | mo | Both Male and Female | Adult | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | clutches/yr | Female | Adult | Not Reported | Stansbury and Granstville, UT [lat., 40] | Exposure Factor Datasets | |
| Clutches or Litters per year | clutches/yr | Female | Adult | Not Reported | El Paso, TX; Casa Grande, Phoenix South Mountain, AZ | Exposure Factor Datasets | |
| Clutch or Litter Size | range of mean clutch sizes | eggs/clutch | Female | Adult | 14-74 animals/site and time period | Hart Mountain, OR; Stansbury Island and Grantsville, UT [lat., 40-42] | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 0.38 | average egg weight | g | Not Reported | Embryo | 27 | Del Puerto Canyon Road | Exposure Factor Datasets | Stanislaus |
| Body Weight - Mean | 0.35 | average egg weight | g | Not Reported | Embryo | 35 | Los Banos Creek, Billy Wright Road | Exposure Factor Datasets | Merced |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | 88 | #/ha | Not Reported | Not Reported | Not Reported | Del Puerto Canyon | Exposure Factor Datasets | Stanislaus |
| Population Density | #/ha | Not Reported | Not Reported | Not Reported | Los Banos | Exposure Factor Datasets | Merced |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 446 | home range estimted by convex polygon method (maximum was 810m2) | m2 | Male | Adult | 15 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Home Range | 121 | home range estimted by convex polygon method (maximum was 202 m2) | m2 | Female | Adult | 15 | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Longevity | 58 | oldest individual observed, female | mo | Both Male and Female | Adult | 3575 | Rock Valley, Nye county | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | range of 3 yearly averages for 4 study sites | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Rock Valley, Nye County | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.005 | increase in snout-vent length (90-100 mm size class) | mm/d | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 12.4 yr | 0.004 SE | |
| Home Range | 17.2 | m2 | Both Male and Female | Adult | 6 | Santa Barbara Island | Exposure Factor Datasets | |||
| Population Density | #/ha | Not Reported | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Neonate | Not Reported | San Clemente Island | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | determined by embryo count | young/female | Female | Adult | 4 | San Nicolas Island | Exposure Factor Datasets |
| Clutch or Litter Size | determined by embryo count | young/female | Female | Adult | 5 | San Clemente Island | Exposure Factor Datasets |
Western Skink (Eumeces skiltonianus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | 8 clutches | Exposure Factor Datasets | ||
| Age at Sexual Maturity | 2 | yrs | Both Male and Female | Adult | Not Reported | 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 |
|---|---|---|---|---|---|---|---|---|
| Home Range | 460 | median distance traveled between recaptures | ft | Both Male and Female | Adult | 25 | San Joaquin Experimental Range | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | Oct. | Not Reported | Hatchling | Not Reported | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | ||
| Time of Mating/ Laying | June - July | time of laying | Female | Adult | Not Reported | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | 125 | d | Female | Adult | Not Reported | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | log VO2 = 0.013 + 0.049T | equation for oxygen consumption (logarithm of VO2; ul O2/g-h) as a function of body temperature (15-30C) | ul O2/g/hr | Not Reported | Adult | 11 | captured at Riverside, CA | Exposure Factor Datasets | resting | Laboratory |
| Body Weight - Mean | 655 | g | Not Reported | Adult | 11 | captured at Riverside, CA | Exposure Factor Datasets | Laboratory |
Giant Garter Snake (Thamnophis gigas)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 23.1 | eggs/clutch | Female | Adult | 18 | captured in Fresno and Sacramento counties, CA | Exposure Factor Datasets | Laboratory |
Common Garter Snake (Thamnophis sirtalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 3.15 | maximal oxygen consumption at 30C | ml O2/hr | Both Male and Female | Juvenile | 245 | gravid adults captured near Lassen, CA | Exposure Factor Datasets | mean age, 31.6 d; range 11-58 d | 0.845 SD | Laboratory |
| Body Weight - Mean | 2.2 | g | Both Male and Female | Juvenile | 245 | Exposure Factor Datasets | mean age, 31.6 d; range 11-58d | 0.350 SD | Laboratory |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 363 | "distance between extremes" or maximum range on a linear scale | m | Not Reported | Juvenile | 18 | Hayfork Creek (elev., 610m) | Exposure Factor Datasets | Trinity |
| Home Range | 400 | average distance moved along stream between relocations | m | Male | Adult | 19 | Hayfork Creek (elev., 610m) | Exposure Factor Datasets | Trinity |
Desert Tortoise (Gopherus agassizi)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | maximum carapace length range = 169-279 mm | kg | Male | Adult | 19 | South West Pinto Basin, Joshua Tree National Monument | Exposure Factor Datasets | Riverside |
| Body Weight - Mean | maximum carapace length range = 60 - 145 mm | kg | Not Reported | Juvenile | 9 | South West Pinto Basin, Joshua Tree National Monument | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Threeawn (Aristida spp., 22 +/- 6%); Globemallow (Sphaeralcea spp., 21 +/- 6%); Slim tridens (Tridens muticus, 20 +/- 7%); Foxtail brome (Bromus rubens, 19 +/- 3%); Red grama (Bouteloua trifida, 6 +/- 3%) and Sedge (Carex spp., 3 +/- 1%) | % of each food item in fecal pellets (mean +/- SD) | % | Not Reported | Not Reported | 66 fecal pellets | Lower Grand Canyon, Mohave County (elev. 450 m) | Exposure Factor Datasets |
| Dietary Composition | Threeawn (Aristida spp., 16 +/- 5%); Globemallow (Sphaeralcea spp., 6 +/- 3%); Slim tridens (Tridens muticus, 50 +/- 8%); Bush muhly (Muhlenbergia porteri, 17 +/- 7%); and Slender janusia (Janusia gracilis, 11 +/- 5%) | % of each food item in fecal pellets (mean +/- SD) | % | Not Reported | Not Reported | 18 fecal pellets | New Water Mountains, Yuma County (elev. 490 m) | 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 | 124.7 (25C); 103.8 (27C); 87.1 (28C); 84.2 (29C); 78.2 (31C) | mean incubation times at various temperatures (25-31C) | d | Not Reported | Embryo | 10-37 eggs/temperature | Exposure Factor Datasets | Laboratory | |
| Hatching Success | 53% (25C); 89% (27C); 83% (28C); 100% (29C); 85% (31C) | hatching success rates at various temperatures (25-31C) | % | Not Reported | Embryo | 13-46 eggs/temperature | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | egg mass | g | Not Reported | Embryo | Not Reported | Exposure Factor Datasets | egg | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Both Adults and Juveniles | 11 animals | Rock Valley, Nye County | Exposure Factor Datasets | ||
| Water Ingestion Rate | 2.2 | annual weight mean for water drinking rate | ml/kg/d | Both Male and Female | Both Adults and Juveniles | 11 animals | Rock Valley, Nye County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | grasses (3.6-33%); cacti (37.0-86.9%); annuals (5.0-18.6%); perennials other than cacti (0.8-2.7%); seeds (3.3-16.0%); other (0.4-2.6%) | relative frequency of material in fresh scat, range for 2 sampling periods over 2 years | % | Both Male and Female | Adult | 189-195 scat samples/yr | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino | |
| Body Weight - Mean | 2.29 | kg | Female | Adult | 51 animals | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino | 0.05SE |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Home Range | 22 | ha | Both Male and Female | Not Reported | 55 | 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 | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | FMR (ml CO2/d) = 2.2 g^1.02 | field metabolic rate during active seasons as a function of body mass | ml CO2/d | Not Reported | Juvenile | 4-22/sampling | Fort Irwin National Training Center, Barstow | Exposure Factor Datasets | < 2 yr | San Bernardino |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July - Oct. | based on presence of hatchlings at study sites | Not Reported | Hatchling | Not Reported | Puente Hills and San Gabriel River, Whittier | Exposure Factor Datasets | Los Angeles | |
| Duration of Incubation or Gestation | 13 | wks | Not Reported | Embryo | Not Reported | Puente Hills and San Gabriel River, Whittier | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 7.23 | eggs/clutch | Female | Adult | 43 | Puente Hills, Whittier (elev., 150 m) | Exposure Factor Datasets | Los Angeles | 3.30SD |
Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Thysanura (0.5%); Collembola (1.0%); Dermaptera (0.5%); Orthoptera (37.1%); Isoptera (6.2%); Ephemeroptera (0.5%); Plecoptera (2.9%); Homoptera (5.7%); Hemiptera (27.6%); Coleoptera (42.4%); Diptera (47.1%); Lepidoptera (18.1%); Hymenoptera (20.9%); Isopoda (2.4%); Chilopoda (0.5%); Araneida (19.0%); Acarina (1.0%); S. occidentalis (1.4%) | percent of lizards in which prey type occurred in stomach contents | % | Both Male and Female | Adult | 210 | oak-grassland and creosote bush-rocky moutain terrain | Exposure Factor Datasets | Lake, Marin, Mendocino, Napa, San Mateo, Shasta, Sonoma, Tehama, Trinity |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4 | eggs/female | Female | Adult | Not Reported | Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) | Exposure Factor Datasets |
| Clutches or Litters per year | 3 | clutches/yr | Female | Adult | Not Reported | Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) | Exposure Factor Datasets |
Valley Garter Snake (Thamnophis sirtalis ssp. fitchi)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 14 | average % of their body mass in frogs ingested per day, estimated from field metabolic rate | % | Both Male and Female | Adult | 72 | Eagle Lake (elev., 1800 m) | Exposure Factor Datasets | Lassen |
Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | BW = -201.07 + 4.78SVL | relationship between body weight (BW, g, 50-175g) and snout-vent length (SVL, cm, 55-75cm) for vitellogenic and non-vitellogenic females in 1985 (r2 = 0.874) | g | Female | Adult | 32 | Manitoba | Exposure Factor Datasets | CANADA |
| Body Weight - Mean | BW = -137.32 + 3.73SVL | relationship between body weight (BW, g, 50-175g) and snout-vent length (SVL, cm, 55-75cm) for vitellogenic and non-vitellogenic females in 1987 (r2 = 0.698) | g | Female | Adult | 110 | Manitoba | Exposure Factor Datasets | CANADA |
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 | 94.2 | g | Female | Adult | 6 | captured in Michigan and Ohio | Exposure Factor Datasets | pregnant | 10.2 SE | Laboratory | |
| Metabolic Rate | 0.095 | resting oxygen consumption at 25C | cm3 O2 STP/hr/g | Female | Adult | 6 | captured in Michigan and Ohio | Exposure Factor Datasets | pregnant | 0.010 SE | Laboratory |
San Francisco Garter Snake (Thamnophis sirtalis ssp. tetrataenia)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Oct. - Nov. | Both Male and Female | Adult | 2 mating masses | San Francisco Peninsula | Exposure Factor Datasets | San Mateo |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 9 (occassionally 21) | based on presence of oviductal eggs and breeding color | mo | Female | Adult | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
| Age at Sexual Maturity | mo | Male | Adult | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
Northern Sideblotched Lizard (Uta stansburiana ssp. stansburiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 16.82 | home range estimated by density probability function method (ranged 99.0% of the time in this area size) | acres | Not Reported | Juvenile | 14 | United States Atomic Energy Commission Nevada Test Site | Exposure Factor Datasets | 0.42 |
California Red-sided Garter Snake (Thamnophis sirtalis ssp. infernalis)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | increase in body mass on earthworm or mosquitofish diets | g/d | Not Reported | Juvenile | 13 | captive-born to female from Humboldt County | Exposure Factor Datasets | 0 - 4 mo | Laboratory |
Comment
