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Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 3 | wk | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Longevity | 8.3 | mean length of life at study site | mo | Both Male and Female | Not Reported | Jacumba (elev., 988 m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Water Ingestion Rate | log10(WI) = 0.652log10(BW) - 0.549 | equation relating whole-animal water influx (WI) to body weight (BW, g); r^2 = 0.206 | ml water/d | Not Reported | Not Reported | Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] | 4-9 per mo/15 mo | Exposure Factor Datasets |
Metabolic Rate | log10(L CO2/d) = 0.845log10(BW) - 1.005 | field metabolic rate; equation relating whole animal carbon dioxide production rates to body weight (BW, g); r^2=0.466 | L CO2/d | Not Reported | Not Reported | Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] | 4-9 per mo/15 mo | Exposure Factor Datasets |
Dietary Composition | seed (77%); vegetation (18%); arthropod (4.5%); feces (0.5%) | % of total dry matter of stomach contents | % | Not Reported | Not Reported | Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] | 4-9 per mo/15 mo | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.02 | 1 - 3 | embryos/female | Female | Adult | Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) | Not Reported | Exposure Factor Datasets |
Home Range | 0.466 | acres | Male | Adult | Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) | Not Reported | Exposure Factor Datasets | |
Home Range | 0.373 | acres | Female | Adult | Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) | Not Reported | Exposure Factor Datasets | |
Home Range | 0.243 | acres | Both Male and Female | Juvenile | Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | see citation | figure of seasonal changes in % body fat | % | Both Male and Female | Not Reported | Indian Cove, Joshua Tree National Monument | Not Reported | Exposure Factor Datasets |
Body Weight - Mean | see citation | figure of seasonal changes in weight | g | Both Male and Female | Not Reported | Indian Cove, Joshua Tree National Monument | Not Reported | Exposure Factor Datasets |
Food Ingestion Rate | see citation | figure of daily food intake | g/d | Female | Adult | captured in Clark County, NV | 4-16 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of 4 seasonal means | 36.4 - 40.5 | g | Not Reported | Not Reported | Indian Cove, Joshua Tree National Monument | 20-42/season | Exposure Factor Datasets |
Body Fat (total or %) | range of 4 seasonal means of fat content (% live weight) | 3.1 - 3.8 | % | Not Reported | Not Reported | Indian Cove, Joshua Tree National Monument | 20-42/season | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Growth Rate | see citation | figure of logistic growth curve for changes in body weight over time | Both Male and Female | Both Adults and Juveniles | Cave Creek Bajada, Cochise County (elev., 1330 m) | Not Reported | Exposure Factor Datasets | |
Age at Fledging, Metamorphosis, Weaning | < 1 | mo | Both Male and Female | Juvenile | Cave Creek Bajada, Cochise County (elev., 1330 m) | Not Reported | Exposure Factor Datasets | |
Clutch or Litter Size | 2 | estimated by palpation | young/litter | Female | Adult | Cave Creek Bajada, Cochise County (elev., 1330 m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Home Range | range of mean home range in 3 study periods estimated by radiotelemetry | 0.21 - 0.43 | ha | Female | Adult | Boyde Deep Canyon Reserve (elev., 300m) | 7-10 | Exposure Factor Datasets | |
Home Range | range of mean home range in 3 study periods estimated by radiotelemetry | 0.18 - 0.52 | ha | Male | Adult | Boyde Deep Canyon Reserve (elev., 300m) | 8-11 | Exposure Factor Datasets | |
Population Density | 6 | #/ha | Both Male and Female | Adult | Boyde Deep Canyon Reserve (elev., 300m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | 1-2 | litters/yr | Female | Adult | Las Vegas Valley, Clark County (elev., 2500 ft) | Not Reported | Exposure Factor Datasets | ||
Body Weight - Mean | see citation | figure of seasonal changes in mean body weight | g | Both Male and Female | Adult | Las Vegas Valley, Clark County (elev., 2500 ft) | 2-96/mo | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | see citation | figure of changes in weight over time | g | Not Reported | Juvenile | adults captured at Alpine Butte, Los Angeles County, CA | 4 litters | Exposure Factor Datasets |
Growth Rate | see citation | figure of changes in weight over time | g | Not Reported | Juvenile | adults captured at Alpine Butte, Los Angeles County, CA | 4 litters | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 3.68 | oxygen consumption at 20C | 0.272 SE | ml O2/g/hr | Not Reported | Not Reported | captured at White Mountain Research Station or Salton Sea, CA | 9 | Exposure Factor Datasets |
Metabolic Rate | 2.68 | oxygen consumption at 32C | 0.349 SE | ml O2/g/hr | Not Reported | Not Reported | captured at White Mountain Research Station or Salton Sea, CA | 9 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 154.5 | 141.8 - 179.0 | g | Female | Adult | 3 | Exposure Factor Datasets |
Population Density | 1 | #/2 acres | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 10.81 | minimum convex polygon estimate, corrected for sample size bias, based on radiotelemetry and mark-release trapping | 12.53 SD | 2.43 - 53.49 | ha | Both Male and Female | Both Adults and Juveniles | Elkhorn Plain Ecological Reserve | 15 | Exposure Factor Datasets |
Population Density | 0.8 - 8.0 | #/ha | Both Male and Female | Both Adults and Juveniles | Elkhorn Plain Ecological Reserve | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Population Density | 2.7 - 37.1 | #/ha | Not Reported | Not Reported | Collinsville | 32 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4 | #/litter | Female | Adult | Not Reported | Exposure Factor Datasets | |||
Duration of Incubation or Gestation | 25 | d | Female | Adult | Not Reported | Exposure Factor Datasets | |||
Age at Fledging, Metamorphosis, Weaning | 21 | length of weaning period | d | Not Reported | Juvenile | Not Reported | Exposure Factor Datasets | ||
Population Density | range for 4 habitat types | 0.5 - 6.8 | #/1000 m2 | Not Reported | Not Reported | Palo Alto Baylands | 3 - 128 animals/type | Exposure Factor Datasets | |
Survival/ Mortality | 2/19 | 2 out of 19 juveniles reached adult size | survival ratio | Not Reported | Juvenile | Palo Alto Baylands | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | June - Sept. | time when reproductively active | Both Male and Female | Adult | New Chicago Marsh, San Francisco Bay National Wildlife Refuge | 65 | Exposure Factor Datasets | ||
Home Range | 1550 | 1100 - 2000 | m2 | Male | Adult | New Chicago Marsh, San Francisco Bay National Wildlife Refuge | 4 | Exposure Factor Datasets | |
Home Range | 1300 | 1100 - 1500 | m2 | Female | Adult | New Chicago Marsh, San Francisco Bay National Wildlife Refuge | 4 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 0.70 | 0 - 3.3 | #/ha | Both Male and Female | Both Adults and Juveniles | San Simon Valley, Portal (elev., 1370 m) | Not Reported | Exposure Factor Datasets |