Reptiles
Desert Tortoise (Gopherus agassizi)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | range of means for 2 yr period | clutches/yr | Female | Adult | 15-40 animals | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino |
| Survival/ Mortality | range of annual mortality rates from 1980 and 1981 | % | Both Male and Female | Adult | Not Reported | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 160 | estimated amount fresh food consumed during first year of life (average body mass = 35 g) | g | Not Reported | Juvenile | Not Reported | Fort Irwin National Training Center, Barstow | Exposure Factor Datasets | 1 yr | San Bernardino |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | determined from ages at which females exceeded the minimum carapace length for tortoises with eggs | yr | Female | Adult | Not Reported | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets | |
| 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 | 33 - 101 animals/site | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets | 0-4 yrs |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 32.9 | egg weight | g | Not Reported | Embryo | 6 | Fenner Valley, Goffs (elev., 680m) {lat., 34^o51'N; long., 115^o09'W] | Exposure Factor Datasets | San Bernardino | 5.1 SD |
| Body Fat (total or %) | 6.13 | % lipid content of fresh egg mass | % | Not Reported | Embryo | 6 | 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 |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | BW = 0.000258(PL)^2.98 | Body weight (BW; 30-3000g) to plastron length (PL; 30-300 mm) relationship | g | Both Male and Female | Not Reported | 83 | Rock Valley, Nye County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | #/km2 | Both Male and Female | Both Adults and Juveniles | 2 yrs | western Mojave desert, Fremont Peak | Exposure Factor Datasets | ||
| Survival/ Mortality | 4.8 | annual mortality rate for subadults and adults between 1973 and 1985 | %/yr | Both Male and Female | Both Adults and Juveniles | Not Reported | western Mojave desert, Fremont Peak | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 45.6 (0-hatching); 78.2 (0-5 yrs); 122.6 (5-10 yrs); 164.2 (10-15 yrs); 232.0 (15-20 yrs); 257.3 (20-25 yrs); 274.0 (25-30 yrs) | mean carapace length for tortoises aged 0 - 30 yrs. | mm | Not Reported | 1-6 animals/age group | Exposure Factor Datasets | 0 - 30 yrs | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | 8.2 | mean annual fecundity for tortoises with mean carapace length of 247.4 mm | eggs/yr | Female | Adult | 30 | Yucca Mountain, Nye County (elev., 1000-1500m) [lat., 36^o51'; long., 116^o25' W] | Exposure Factor Datasets | 0.5 SE |
| Clutch or Litter Size | range of mean clutch size over 3 years in two sample groups | eggs/clutch | Female | Adult | 10-25 | Yucca Mountain, Nye County (elev., 1000-1500m) [lat., 36^o51'; long., 116^o25' W] | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Population Density | #/km2 | Not Reported | Not Reported | Not Reported | China Lake Naval Weapons Center | Exposure Factor Datasets | San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | PL(mm) = 7.25(Age) + 50.1 | linear regression equation relating plastron length (PL; 48-221 mm) to Age (1-26 yrs) | Both Male and Female | Both Adults and Juveniles | 15 animals; repeated measurements | Rock Valley, Nye County (elev., 1020m) | Exposure Factor Datasets | 0-26 yrs |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Not Reported | 41 animals | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | 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 | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July | Not Reported | Hatchling | Not Reported | Puente Hills, Whittier (elev., 150 m) | Exposure Factor Datasets | Los Angeles | ||
| Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Not Reported | San Gabriel Mountains, Crystal Lake (elev., 1584 m) | Exposure Factor Datasets | Los Angeles | ||
| Body Weight - Mean | 15.3 | average snout-vent length = 75mm | g | Not Reported | Adult | Not Reported | San Gabriel Mountains, Crystal Lake (elev., 1584 m) | Exposure Factor Datasets | Los Angeles |
Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Home Range | 73.10 | 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 | Adult | 14 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | 2+ yr | Monterey | nonbreeding |
| Home Range | 61.20 | 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 | Adult | 10 animals | Hastings Natural History Reservation, Carmel Valley | Exposure Factor Datasets | 2+ yr | Monterey | nonbreeding |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July - Sept. | time when hatchlings appeared at study site | Not Reported | Hatchling | Not Reported | Hastings Reservation, Carmel Valley (elev., 550m) | Exposure Factor Datasets | Monterey |
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 | 39.30 | home range estimated by density probability function method (ranged 99.0% of the time in this area size) | acres | Male | Adult | 24 | United States Atomic Energy Commission Nevada Test Site | Exposure Factor Datasets | 0.98 |
Alameda Whipsnake (Masticophis lateralis ssp. euryxanthus)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/female | Female | Adult | 2 | outdoor enclosures, Hayward, CA | Exposure Factor Datasets | Laboratory | |
| Duration of Incubation or Gestation | time from mating to egg laying | d | Female | Adult | 2 | outdoor enclosures, Hayward, CA | Exposure Factor Datasets | Laboratory |
| Body Weight - Mean | egg weight | g | Not Reported | Embryo | 10 | outdoor enclosures, Hayward, CA | Exposure Factor Datasets | Laboratory |
Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see citation | figure of resting oxygen consumption | ml O2/g/hr | Both Male and Female | Adult | 5-10 | Exposure Factor Datasets | post-emergence | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Nov. - Apr. | Not Reported | Not Reported | Not Reported | Winnepeg, Manitoba | Exposure Factor Datasets | CANADA | ||
| Time of Mating/ Laying | Apr. - May | time of breeding | Both Male and Female | Adult | Not Reported | Winnepeg, Manitoba | Exposure Factor Datasets | CANADA | |
| Body Weight - Mean | range of monthly mean weights | g | Both Male and Female | Adult | 10-16/mo | Winnepeg, Manitoba | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Female | Adult | Not Reported | Douglas and Jefferson Counties | Exposure Factor Datasets |
| Body Weight - Mean | g | Male | 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 | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.119 | resting oxygen consumption at 25C | cm3 O2 STP/hr/g | Not Reported | Neonate | 8 | captured in Michigan and Ohio | Exposure Factor Datasets | 0.010 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | 18.7 | #/ha | Not Reported | Not Reported | Not Reported | McDonough County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 12.9 | young/litter | Female | Adult | 104 | Hanover | Exposure Factor Datasets | 6.1 SD |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | July - Aug. | Both Male and Female | Hatchling | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare | ||
| Time of Mating/ Laying | May - July | time of laying | Female | Adult | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare | |
| Duration of Incubation or Gestation | 4 | wks | Both Male and Female | Embryo | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | see citation | figure of seasonal changes in body weight | g | Not Reported | Not Reported | Not Reported | Elkhorn Plain (elev., 685-765m) | Exposure Factor Datasets | San Luis Obispo |
| Time of Mating/ Laying | May - June | time of laying | Female | Adult | Not Reported | Elkhorn Plain (elev., 685-765m) | Exposure Factor Datasets | San Luis Obispo |
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of averages for 3 sites | g | 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 | 60 | average annual survivorship estimated for 4 yrs | % | Both Male and Female | Adult | 5-38 marked/yr | Thousand Palms | Exposure Factor Datasets | > 31 mo | Riverside |
| Age at Sexual Maturity | mo | Not Reported | Adult | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.357 | average field metabolic rate (measured using doubly-labeled water) | ml CO2/g/hr | Not Reported | Juvenile | 8 | Thousand Palms | Exposure Factor Datasets | Riverside | 0.024 SE | |
| Metabolic Rate | 0.110 (30C); 0.217 (35C); 0.238 (40C) | average resting metabolic rate (oxygen consumption) measured at 30-40C | ml O2/g/hr | Not Reported | Adult | 5 | Thousand Palms | Exposure Factor Datasets | Laboratory | ||
| Metabolic Rate | 0.180 (30C); 0.250 (35C); 0.279 (40C) | average resting metabolic rate (oxygen consumption) measured at 30-40C | ml O2/g/hr | Not Reported | Hatchling | 5 | Thousand Palms | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | log weight = 0.011 SVL + 0.46 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Male | Adult | Not Reported | Palm Desert | Exposure Factor Datasets |
| Body Weight - Mean | log weight = 0.011 SVL + 0.05 | 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 - 0.22 | 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 |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 45 | minimum adult size at first reproduction, estimated from growth rate | mo | Not Reported | Adult | 22 | Phoenix South Mountain, Maricopa County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 35.2 | g | Both Male and Female | Adult | 30 | animals originally captured at Riverside County, CA | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | see citation | figure of standard and maximal activity metabolic rates at 25-45C | cm3 O2/g/hr | Both Male and Female | Adult | 30 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 86 | incubation period at 28C | d | Not Reported | Embryo | 12 | Exposure Factor Datasets | Laboratory | |
| Duration of Incubation or Gestation | 44 | incubation period at 36C | d | Not Reported | Embryo | 60 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 1462 | home range estimated using the convex polygon method | m2 | Male | Adult | 20 | 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 | Condition |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 13.8 | g | Not Reported | Adult | 8 | Victorville | Exposure Factor Datasets | hibernating |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 0.23(BW)^0.67 | equation for relating resting oxygen consumption (OC; ml O2/hr) to body mass (BW; g) @ 25C | ml O2/g/hr | Both Male and Female | Adult | 154 animals | Sierra Nevada (elev., 150 and 1500 m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 9.64 | mean snout-vent length = 66.35mm | g | Male | Not Reported | 295 animals | valley grassland (elev., 150m), central Sierra Nevada | Exposure Factor Datasets | 3.95SD |
| Body Weight - Mean | 8.08 | average snout-vent length = 62.99 mm | g | Female | Not Reported | 194 animals | valley grassland (elev., 150m), central Sierra Nevada | Exposure Factor Datasets | 3.76SD |
| 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 |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | see citation | figure | Both Male and Female | Hatchling | Not Reported | Valyermo (elev., 1300m) [lat., 34^o27'N; long., 117^o45'W], Wrightwood (elev., 2200m) [lat., 34^o23'N; long., 117^o40' W], Throop Peak (elev., 2600m) [lat., 34^o22'N; long., 117^o48'W] | Exposure Factor Datasets | Los Angeles, San Bernardino |
| Time of Mating/ Laying | see citation | figure of time of egg laying | Female | Adult | Not Reported | Valyermo (elev., 1300m) [lat., 34^o27'N; long., 117^o45'W], Wrightwood (elev., 2200m) [lat., 34^o23'N; long., 117^o40' W], Throop Peak (elev., 2600m) [lat., 34^o22'N; long., 117^o48'W] | Exposure Factor Datasets | Los Angeles, San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.50 | eggs/clutch | Female | Adult | 8 | "lowland" habitat | Exposure Factor Datasets | Kern | 0.53 |
| Clutch or Litter Size | 8.50 | eggs/clutch | Female | Adult | 16 | "montane" habitat (elev., 1528m) | Exposure Factor Datasets | Kern | 0.32 |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 13.1 | g | Not Reported | Adult | 65 | Exposure Factor Datasets | Orange, Riverside | ||
| 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 |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - Apr. | Both Male and Female | Both Adults and Juveniles | Not Reported | yellow pine forest, central Sierra Nevada (elev., 1500m) | Exposure Factor Datasets | ||
| Clutch or Litter Size | 11.3 | eggs/clutch | Female | Adult | 48 | yellow pine forest, central Sierra Nevada (elev., 1500m) | Exposure Factor Datasets | 0.41SE |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Clutch or Litter Size | eggs/clutch | Female | Adult | 39 - 59 | Table Mountain, Wrightwood (elev., 2200m) and Mojave desert, Pearblossom (elev., 1330m) | Exposure Factor Datasets |
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 (2779); Arthropod Total (658); Vertebrate Total (2); Plant Total (2113): Includes; Insects, Coleoptera (49); Hemiptera (27); Homoptera (503); Hymenoptera (59); Lepidoptera (10); Neuroptera (2); Orthoptera (13); Lizards, Phrynosomatidae (2); Plants, Asteraceae (70); Boraginaceae (3); Euphorbiaceae (6); Fabaceae (107) and Loasaceae (1927) | total numbers of food items found in stomach contents | # | Male | Adult | 23 | Whitewater Floodplain Reserve, Palm Springs | Exposure Factor Datasets | Riverside |
| Dietary Composition | Overall Total (629); Arthropod Total (201); Vertebrate Total (1); Plant Total (332): Includes; Insects, Coleoptera (28); Diptera (5); Hemiptera (25); Homoptera (177); Hymenoptera (48); Lepidoptera (3); Orthoptera (4); Snakes, Crotalidae (1); Plants, Asteraceae (42); Boraginaceae (8); Fabaceae (71) and Loasaceae (211) | total numbers of food items found in stomach contents | # | Female | Adult | 13 | 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 |
|---|---|---|---|---|---|---|---|---|
| Home Range | 1300 | average home range, estimated using minimum polygon method (mark and recapture technique) | sq. ft. | Both Male and Female | Juvenile | 357 lizards | Exposure Factor Datasets | |
| Home Range | 0.38 | home range estimated using probability density function (95%) | acre | Male | Adult | Not Reported | Mesa County | Exposure Factor Datasets |
| Food Ingestion Rate | 0.02 | total volume of food eaten | g/d | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | |
| Home Range | 0.23 | home range estimated using probability density function (95%) | acre | Female | Adult | Not Reported | Mesa County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 8.5 | field metabolic rate (estimated by injecting with doubly-labelled water); also expressed as 218 +/- 141SE kJ/kg/d | L CO2/kg/d | Both Male and Female | Adult | 5 | El Comitan, Baja California Sur | Exposure Factor Datasets | MEXICO | 5.5 SE |
| Dietary Composition | Scorpionida (1.22%); Araneae (22.72%); Solifugae (2.78%); Thysanura (0.28%); Orthoptera (5.66%); Isoptera (2.31%); Homoptera (0.38%); Neuroptera (7.93%); Coleoptera (7.86%); Trichoptera (0.62%); Lepidoptera (44.76%); Hymenoptera (2.97%) | % frequency of prey (by volume) in stomach contents | % | Both Male and Female | Adult | 27 | El Comitan, Baja California Sur | Exposure Factor Datasets | MEXICO |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.22 | growth rate measured as increase in snout-vent length (mm) | mm/d | Male | Hatchling | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets |
| Growth Rate | 0.17 | growth rate measured as increase in snout-vent length (mm) | mm/d | Female | Hatchling | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Population Density | #/ha | Both Male and Female | Adult | Not Reported | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Population Density | #/ha | Not Reported | Juvenile | Not Reported | Phoenix South Mountain, Maricopa county | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 284.3 | home range estimated using convex polygon method | m2 | Male | Adult | Not Reported | Carlsbad (elev., 1067m) | Exposure Factor Datasets | 41.5 (95%CI) |
| Home Range | 153.6 | home range estimated using convex polygon method | m2 | Female | Adult | Not Reported | Carlsbad (elev., 1067m) | Exposure Factor Datasets | 24.7 (95%CI) |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of average clutch sizes on 8 dates | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | >12 mo | |
| Clutches or Litters per year | clutches/yr | Female | Adult | Not Reported | Exposure Factor Datasets |
Island Night Lizard (Xantusia riversiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Lizard skin (17); Unidentified arthropods (2); Spiders (11); Scorpions (2); Centipedes (2); Ticks (1), Isopids (17); Insects unidentified (26); Orthoptera (1); Homoptera (1); Hemiptera (3); Lepidoptera (5); Diptera (3); Coleptera (19); Hymenoptera (25); Plants (44) | number of individuals in which a particular item was found in stomach contents | # | Not Reported | Not Reported | 91 | San Nicolas, Santa Barbara and San Clemente Islands | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 1.01 | g | Not Reported | Hatchling | 15 | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets | at birth | |
| Clutch or Litter Size | range of average number of young produced/female at 3 sites | young/female | Female | Adult | 2-25 | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.025 (15C); 0.035 (20C); 0.070 (25C); 0.105 (30C); 0.160 (35C) | mean oxygen consumption measured at various temperatures (15-35C) during the photophase of the diel cycle | cc O2/g/hr | Not Reported | Adult | 10-29/temp. group | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | 0.024 (15C); 0.036 (20C); 0.058 (25C); 0.081 (30C); 0.146 (35C) | mean oxygen consumption measured at various temperatures (15-35C) during the scotophase of the diel cycle | cc O2/g/hr | Not Reported | Adult | 10-29/temp. group | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of average male and average female weights | g | Both Male and Female | Adult | 258 | Santa Barbara Island | Exposure Factor Datasets | non-pregnant |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 5.6 (15C); 9.8 (20C); 17.3 (25C); 30.4 (30C) | oxygen consumption rates measured at body temperatures of 15-30C | ml O2/kg/hr | Not Reported | Adult | 4/temp | captured at Riverside, CA | Exposure Factor Datasets | resting | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 548 | g | Not Reported | Adult | 14 | Exposure Factor Datasets | Laboratory | ||
| Metabolic Rate | OC = 0.324/(37.4 - T) | resting oxygen consumption (OC) as a function of body temperature (T; 10-35C) | ml O2/g/hr | Not Reported | Adult | 14 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 8.8 | eggs/clutch | Female | Adult | 38 | Exposure Factor Datasets | Laboratory |
Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Oct. - May | Both Male and Female | Both Adults and Juveniles | 578 marked turtles | Hayfork Creek (elev., 610m) | Exposure Factor Datasets | Trinity |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Algae (2.00); Nematomorpha (0.25); Crustacea (2.55); Araneae (0.15); Odonata nymphs (10.15); Ephemeroptera nymphs (4.60); Trichoptera larvae (17.25); Hemiptera nymphs (0.58); Hemiptera adults (0.41); Orthoptera adults (1.60); Coleoptera larvae (7.95); Coleoptera adults (0.48); Diptera larvae (4.45), Diptera adults (0.30); Osteichthyes (0.90); Amphibia (1.20); Other (0.80) | volume (cc) of food items in stomach contents determined by water displacement | cc | Not Reported | Juvenile | 30 | Hayfork Creek (elev., 750m) | Exposure Factor Datasets | Trinity |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - Mar. | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 46.4 | time to hatching at 29C | d | Both Male and Female | Embryo | 802 | Exposure Factor Datasets | 0.018 SE | Laboratory | |
| Clutch or Litter Size | range of clutch size means for two time periods | eggs/clutch | Female | Adult | 71-95 | Crane county | Exposure Factor Datasets |
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