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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Home Range | 0.12 | 0.02 - 0.31 | acres | Female | Juvenile | Bass Lake (elev., 4500 ft.) | 12 | Exposure Factor Datasets | |
Population Density | range of means for 4 trapping periods | 8.0 - 16.8 | #/acre | Both Male and Female | Both Adults and Juveniles | Bass Lake (elev., 4500 ft.) | 4 trapping periods | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Metabolic Rate | basal metabolic rate measured as oxygen consumption at 26 - 29C; body weight range = 15.2 - 17.1g | 1.55 - 1.65 | cc O2/g/hr | Male | Adult | 2 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | based on presence of recent corpora lutea; ages inferred from body weights | 32 -35 | d | Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets | ||
Age at Sexual Maturity | based on presence of swollen tubules of cauda epididymides and enlarged seminal vesicles, ages inferred from body weights | 40 - 60 | d | Male | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets | ||
Clutch or Litter Size | 4.6 | based on # of implanted embryos; monthly means (Mar. - Nov.) ranged from 4.0 - 5.7 | 0.11 SE | #/litter | Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 96 | Exposure Factor Datasets | |
Time of Mating/ Laying | Feb. - Mar. (begin), Mar. - May (peak), July - Aug. (possible 2nd peak), Aug. - Dec. (end) | based on % fecund specimens | Both Male and Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | seeds (34-53%); fruits (0-22%); arthropods (26-36%); leaves (7-12%); fungi (0-7%); misc. (3-10%) | volumetric % of stomach contents, range of means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 778 | Exposure Factor Datasets |
Dietary Composition | seeds (0-81%); fruits (2-19%); arthropods (9-57%); leaves (1-18%); fungi (0-26%); misc. (0-42%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 40-88 | Exposure Factor Datasets |
Dietary Composition | seeds (0-80%); fruit (0-30%); arthropods (0-80%); leaves (7-32%); fungi (0%); misc. (0-19%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 53-66 | Exposure Factor Datasets |
Dietary Composition | seeds (6-49%); fruit (0-24%); arthropods (27-80%); leaves (0-20%); fungi (0-5%); misc. (0-18%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 48-59 | Exposure Factor Datasets |
Dietary Composition | seeds (0-68%); fruit (0-24%); arthropods (0-47%); leaves (0-19%); fungi (0-43%); misc. (0-27%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 78-105 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 48.72 | based on presence of cornified vaginal epithelial cells | 1.23 | d | Female | Adult | 186 | Exposure Factor Datasets | |
Age at Sexual Maturity | based on presence of motile sperm | 40 - 60 | d | Male | Adult | 43 - 79 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 100% | 0 | g | Both Male and Female | Adult | Blue Lake, 75 long., 95 lat. | 23 | Exposure Factor Datasets |
Age at Sexual Maturity | 17 | 0 | years | Both Male and Female | Adult | Blue Lake, 75 long., 95 lat. | 23 | Exposure Factor Datasets |
Dietary Composition | food | Both Male and Female | Adult | Blue Lake, 75 long., 95 lat. | 23 | Exposure Factor Datasets | ||
Age at Fledging, Metamorphosis, Weaning | teenager | Adult, Neonate | Blue Lake, 75 long., 95 lat. | 47 | 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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 1.42 | annual composite home range estimated by principal component method (95% probability) | ha | Not Reported | Not Reported | Warm Springs Valley, Washoe County | 509 recapture loci | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | see citation | monthly % volume of food items (detailed species-specific list) in feces | % | Both Male and Female | Not Reported | Irvine Ranch | 15-47/mo | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.50 | 1.29 SD | 3 - 6 | #/litter | Female | Adult | Pinyon-juniper zone near Westgard Pass (elev., 2500 m) | 4 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | see citation | figure of seasonal changes in density | #/acre | Not Reported | Not Reported | Grass Valley Regional Park | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Water Ingestion Rate | range of means from 10 experiments | 0.114 - 0.372 | cc/g/d | Both Male and Female | Not Reported | 4-8 animals/experiment; 10 experiments | 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 | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | May - Aug. | Female | Adult | Kananaskis Valley, Alberta [lat., 51 N] | Not Reported | Exposure Factor Datasets | ||||
Growth Rate | 0.27 | difference in weight of newly emerged young between 1st and 2nd capture/ time interval (4-11d) | 0.06 SE | g/d | Male | Juvenile | Kananaskis Valley, Alberta [lat., 51 N] | 31 | Exposure Factor Datasets | |
Growth Rate | 0.22 | difference in weight of newly emerged young between 1st and 2nd capture/ time interval (4-11d) | 0.05 SE | g/d | Female | Juvenile | Kananaskis Valley, Alberta [lat., 51 N] | 30 | Exposure Factor Datasets | |
Survival/ Mortality | 67 | over-winter survival | % | Female | Adult | Kananaskis Valley, Alberta [lat., 51 N] | 6 | Exposure Factor Datasets | ||
Survival/ Mortality | 30 | over winter survival | 18 - 47 | % | Male | Juvenile | Kananaskis Valley, Alberta [lat., 51 N] | 30 | Exposure Factor Datasets | |
Survival/ Mortality | 44 | over winter survival | 14 - 67 | % | Female | Juvenile | Kananaskis Valley, Alberta [lat., 51 N] | 34 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 1615 | elliptical home range based on distribution of capture points | m2 | Female | Both Adults and Juveniles | Douglas fir forest, Vancouver | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | see citation | figure of seasonal changes in density | #/acre | Both Male and Female | Not Reported | Tilden Regional Park, Berkeley (elev. 600-1200 ft) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28 | d | Both Male and Female | Adult | captured in Rago, Kansas | 3 litters | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Water Ingestion Rate | 1.74 | daily water ingestion at ambient temperature of 21C | 1.66 - 1.98 | cc/animal/d | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Water Ingestion Rate | 3.78 | daily water ingestion at ambient temperature of 21C | cc/animal/d | Female | Adult | Not Reported | Exposure Factor Datasets | |
Water Ingestion Rate | 0.126 | total daily water intake (water drunk + water in food) at 21C | cc/g/d | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
Food Ingestion Rate | 0.552 | daily food ingestion at an ambient temperature of 21C | cal/g/d | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
Food Ingestion Rate | 1.205 | daily food ingestion at an ambient temperature of 21C | cal/g/d | Both Male and Female | Juvenile | Not Reported | Exposure Factor Datasets |