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| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| 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 | Manitoba | 110 | Exposure Factor Datasets |
| Time of Torpor or Hibernation | Sept. - Mar. | Female | Adult | Manitoba | 218 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Townsend ground squirrel (8.7%); Mountain conttontail (7.8%); Deer mouse (47.5%); Ord kangaroo rat (4.9%); Great Basin pocket mouse (5.8%); Montane vole (9.7%); House mouse (7.8%); Other species (7.8%) | % frequency of prey ingested based on stomach content and scat analysis | % | Not Reported | Not Reported | Snake River Birds of Prey Area, southwestern ID | 103 items/405 captures | Exposure Factor Datasets | ||
| Dietary Composition | Townsend ground squirrel (27.7%); Mountain conttontail (31.6%); Deer mouse (19.0%); Ord kangaroo rat (5.4%); Great Basin pocket mouse (1.8%); Montane vole (6.1%); House mouse (2.8%); Other species (5.5%) | % biomass of prey ingested based on stomach content and scat analysis | % | Not Reported | Not Reported | Snake River Birds of Prey Area, southwestern ID | 103 items/405 captures | Exposure Factor Datasets | ||
| Population Density | 1.2 | mean density in 9 habitat types | 0.6 SD | 0.1 - 1.9 | #/ha | Both Male and Female | Not Reported | Snake Rive Birds of Prey Area, southwestern ID | Not Reported | Exposure Factor Datasets |
| Food Ingestion Rate | 1.6 | % body weight consumed per day | 0.82 SD | % | Not Reported | Not Reported | captive in outdoor enclosures at Snake River Birds of Prey Area | 43 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 8.5 | 3 - 19 | eggs/clutch | Female | Adult | "west coast" | 33 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Ground squirrel (44.3%); Woodrat (29.5%); Cottontail (19.7%); Quail egg (8.4%); Pocket gopher (6.4%); Mouse (4.4%); Meadow mouse (3.4%); Fence lizard (1.5%); Kangaroo rat (1.3%); Pocket mouse (0.6%); Broad-shouldered lizard (0.4%) | % of total food items recovered from stomach contents | % | Not Reported | Not Reported | San Joaquin Experimental Range | 72 food items | Exposure Factor Datasets | |
| Home Range | 460 | median distance traveled between recaptures | 0 - 1000 | ft | Both Male and Female | Adult | San Joaquin Experimental Range | 25 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| 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 | captured at Riverside, CA | 11 | Exposure Factor Datasets | |
| Body Weight - Mean | 655 | 513 - 950 | g | Not Reported | Adult | captured at Riverside, CA | 11 | Exposure Factor Datasets | |
| Inhalation Rate | 363 (15C); 508 (20C); 709 (25C); 999 (30C) | ventilation volume [ml (BTPS)/kg/hr) measured at 15-30 C | ml/kg/hr | Not Reported | Adult | captured at Riverside, CA | 7 | Exposure Factor Datasets | |
| 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 | captured at Riverside, CA | 4/temp | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | see citation | figure of monthly % food types in stomach contents | % | Not Reported | Adult | Los Banos (elev., 200-500') and Mendota (elev., 400-500') | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Longevity | maximum observed age | 5 -6 | yr | Not Reported | Adult | Panoche (elev., 1200') | Not Reported | Exposure Factor Datasets | |
| Time of Hatching or Parturition | Mar. | Not Reported | Neonate | Panoche (elev., 1200') | Not Reported | Exposure Factor Datasets | |||
| Home Range | 11 | "normal" home range estimated as area enclosed by points of capture | acres | Not Reported | Adult | Panoche (elev., 1200') | 240 squirrel trapped | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 4 | g | Both Male and Female | Juvenile | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets |
| 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 | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 17 | g | Both Male and Female | Juvenile | 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 | Error | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Inhalation Rate | 19.1 | mean resting respiratory rate | 3.28 SD | #/min | Not Reported | Adult | 4 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.343 | mean standard metabolic rate | 0.044 | ml O^2/g bw/hr | Female | Adult | 2 birds | Exposure Factor Datasets |
| Metabolic Rate | 0.566 | mean standard metabolic rate | 0.080 | ml o^2/g bw/hr | Male | Adult | 4 birds | Exposure Factor Datasets |
| Body Weight - Mean | 1,588 | mean body weight | 147 | g | Female | Adult | 2 birds | Exposure Factor Datasets |
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