Rodents (Rodentia)
Stephens' Kangaroo Rat (Dipodomys stephensi)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Home Range | range of median maximum distance moved based on telemetry at 2 sites; 21 - 91 d observation | m | Female | Adult | 9 | Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] | Exposure Factor Datasets | Riverside |
Home Range | range of median maximum distance moved based on telemetry at 2 sites; 15 - 127 d of observation | m | Male | Adult | 4-9 | Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] | Exposure Factor Datasets | Riverside |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 10 | g | Both Male and Female | Juvenile | 16 | Exposure Factor Datasets | 5 d | Laboratory |
Little Pocket Mouse (Perognathus longimembris)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 4 | g | Both Male and Female | Juvenile | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | 4 wk | Inyo |
Duration of Incubation or Gestation | 3 | wk | Female | Adult | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | Inyo |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Longevity | > 8 | lifespan in captivity | yrs | Not Reported | Adult | 1 | captured in Kern County, CA | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Longevity | 8.3 | maximum lifespan in captivity | yrs | Both Male and Female | Adult | 216 | Exposure Factor Datasets | Laboratory |
Deer Mouse (Peromyscus maniculatus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Home Range | 60-120 long by 5.5 wide | linear-shaped home ranges conforming to ecotone along lake | m | Both Male and Female | Not Reported | 14 | Frederick Lake, near Calgary, Alberta [lat., 51^o06'N; long., 114^o44'W] | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | see citation | see citation for figure of absolute fat content in various breeding conditions | g | Both Male and Female | Adult | 6- 23 | Heart Lake Biology Station [lat., 61^oN; long., 117^oW] | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | arthropods (62.3 %); seeds (21.7 %); chlorophyllous plant matter (10.1%); achlorophyllous plant matter (6.3%) | % total volume of stomach contents. | % | Not Reported | Not Reported | 12 | uncut and selectively cut forest, Manitouwadge, Ontario [lat., 49^o07'N; long., 85^o50'W] | Exposure Factor Datasets | CANADA |
Dietary Composition | arthropods (53.9-87.0 %); seeds (0-40.0%); berries (0-1.2%); chlorophyllous plant matter (0-14.2%); achlorophyllous plant matter (2.1-14%) | % total volume of stomach contents; range for 3 yrs | % | Not Reported | Not Reported | 7-35/yr | clear cut forest, Manitouwadge, Ontario [lat., 49^o07'N; long., 85^o50'W] | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Countries |
---|---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.046 | daily mortality rate for mice <90 days; author's estimate from regression of log numbers against age. | /d | Both Male and Female | Both Adults and Juveniles | Not Reported | Pinawa, Manitoba | Exposure Factor Datasets | <90 d | CANADA |
Time of Hatching or Parturition | April (begin), late April-Late July (peak), September (end) | Female | Adult | Not Reported | Pinawa, Manitoba | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 2.70 | Mean measured as CO2 production at 24C, converted to O2 consumption by 0.8 R.Q. | ml 02/g/hr | Both Male and Female | Adult | 6 | Exposure Factor Datasets | Resting | 0.07 SE | Laboratory | |
Metabolic Rate | 1.71 | Also termed "fasted metabolism", average body weight after 24 hr fast = 18.2 g +/- 0.6 SE | ml 02/g/hr | Not Reported | Adult | 6 | Exposure Factor Datasets | Basal, fasted 24 hr | 0.12 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | 0.21 | acres | Female | Adult | 27 | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
Home Range | 0.13 | acres | Male | Juvenile | 10 | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | based on presence of motile sperm | d | Male | Adult | 43 - 79 | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Home Range | 0.63 | acres | Male | Adult | 70 | Edwin S. George Reserve, University of Michigan | Exposure Factor Datasets | 0.4 |
Home Range | 0.51 | acres | Female | Adult | 64 | Edwin S. George Reserve, University of Michigan | Exposure Factor Datasets | 0.4 |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | range of monthly estimates | #/ha | Female | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of monthly means at sites with excess artificial food (whole oats), includes pregnant animals | g | Female | Adult | 5-26/mo | University of British Columbia | Exposure Factor Datasets | CANADA |
Body Weight - Mean | range of monthly means at control sites, includes pregnant animals | g | Female | Adult | 1-8/mo | University of British Columbia | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of means from 3 sites | g | Female | Adult | 18-29 | captured at Milk River, Alberta [lat., 49^o07'N; long., 111^o45'W] and Sydney, British Columbia, Canada [lat., 48^o43'N; long., 123^o20'W] | Exposure Factor Datasets | at parturition | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Dietary Composition | see citation | figure of preferred food items ranked by Rodger's index | Both Male and Female | Both Adults and Juveniles | 12 | captured in Ontario, Canada | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | ARTHROPODS (81% total) - Lepidoptera larvae (91); Coleoptera (6); June beetles (0); Jerusalum crickets (1); Ants (1); Orthoptera (0); Spiders (1); Lygaeid bugs (0); Scorpions (0); Solfugids (0); Diptera (1);GREEN VEGETATION (19% total); SEEDS (0% total). | % weight of prey in fecal pellets | % | Both Male and Female | Both Adults and Juveniles | 40 | Mono Lake (elev., 2000m) | Exposure Factor Datasets | Mono |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 100% | g | Both Male and Female | Adult | 23 | Blue Lake, 75 long., 95 lat. |
Exposure Factor Datasets | 2 years | Alpine | Breeding | 0 |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | % survival to end of breeding season, range over 5 yrs | % | Female | Adult | 15 - 43 | Kananaskis Valley, Alberta | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.387 | based on embryo counts in museum specimen | embryos/female | Female | Adult | 623 | Exposure Factor Datasets | 0.085 SE |
Salt-marsh Harvest Mouse (Reithrodontomys raviventris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 0.245 | daily rate of consumption of Diablo animal chow (dry pellets) | g/g/d | Both Male and Female | Adult | 6 | captured in Contra Costa County, CA | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Water Ingestion Rate | range of mean daily consumption rates (% body weight) for control animals | % BW/d | Not Reported | Not Reported | 3-5 | Exposure Factor Datasets | Laboratory |
California Vole (Microtus californicus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | > 45 | g | Male | Adult | Not Reported | Richmond Field Station | Exposure Factor Datasets | Contra Costa | breeding |
Body Weight - Mean | > 40 | g | Female | Adult | Not Reported | Richmond Field Station | Exposure Factor Datasets | Contra Costa | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | .574 | minimum survival rate per 2 wks | Male | Adult | 8 breeding seasons (6 populations pooled) | Berkeley | Exposure Factor Datasets | breeding season |
Survival/ Mortality | .635 | minimum survival rate per 2 wks | Male | Adult | 8 breeding seasons (6 populations pooled) | Berkeley | Exposure Factor Datasets | breeding season |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | change in body weight; instantaneous rated based on Brody 1945 | %/d | Male | Adult | Not Reported | Richmond field station; Russell Reservation | Exposure Factor Datasets | Contra Costa | |
Dietary Composition | grass heads (1.3%); grass leaves (78.9%); grass stems (9.2%); grass roots (0.3%); Forb leaves (9.3%); Forb stems (0.4%); Forb roots (0.1%); Vole hair (0.4%) |
composition of stomach contents | % | Not Reported | Not Reported | 750 items/15 voles | Richmond Field Station | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 25.8 | median weight at sexual maturity | g | Male | Adult | 33 | Sea Ranch | Exposure Factor Datasets | Sonoma |
Body Weight - Mean | 24.4 | median weight at sexual maturity | g | Female | Adult | 30 | Sea Ranch | Exposure Factor Datasets | Sonoma |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.3 | young/litter | Female | Adult | 12 | Exposure Factor Datasets | 0.4 SE | Laboratory | ||
Clutches or Litters per year | 1.0 | litters per female per 12 wks | litters/12 wks | Female | Adult | 12 | Exposure Factor Datasets | 0.2 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Inhalation Rate | 297 (10C); 238 (20C); 137 (30C) | inhalation rates at ambient temperatures (10-30C) | ml/min | Not Reported | Not Reported | 6/group | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Survival/ Mortality | range of mean minimum survival rates per 14 d | Male | Juvenile | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets |
Survival/ Mortality | range of mean minimum survival rates per 14 d | Female | Adult | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Population Density | #/ha | Not Reported | Not Reported | Not Reported | San Pablo salt marsh | Exposure Factor Datasets | Contra Costa |
Fresno Kangaroo Rat (Dipodomys nitratoides ssp. exilis)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range for 2 sites; mean density for 4 sampling periods | #/ha | Not Reported | Not Reported | 68 - 326 animals/site | Whitesbridge Rd. | Exposure Factor Datasets | Fresno |
Deer Mouse (Peromyscus maniculatus ssp. bairdii)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 20.9 | g | Both Male and Female | Adult | 8 | Exposure Factor Datasets | summer-acclimatized | 1.60 SE | Laboratory | |
Body Weight - Mean | 20.8 | g | Both Male and Female | Adult | 8 | Exposure Factor Datasets | winter-acclimatized | 1.24 SE | Laboratory |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | d | Female | Adult | 161 | Exposure Factor Datasets | Non-lactating | Laboratory | |
Age at Sexual Maturity | d | Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 6522 | oxygen consumption of active animals at 23C | ml/kg/hr | Male | Adult | 6 | Exposure Factor Datasets | active | 335.5 SE | Laboratory | |
Metabolic Rate | 3370 | resting oxygen consumption at 23C | ml/kg/hr | Male | Adult | 6 | Exposure Factor Datasets | resting | 126.7 SE | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. borealis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | food ingestion during lactation; minimum from 0-3 d postpartum, maximum at 12-15 d postpartum. | g/d | Female | Adult | 41 | Original pairs trapped at Heart Lake, Northwest Territories | Exposure Factor Datasets | 0 - 15 d | Lactation | Laboratory | |
Food Ingestion Rate | 0.15 | daily ingestion rate; animals fed Purina rat pellets | g/g/d | Female | Adult | 18 | Original pairs trapped at Heart Lake, Northwest Territories | Exposure Factor Datasets | nonbreeding | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Condition | Countries | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 194.2 | cumulative food ingestion from parturition to weaning (approx. 24 d); Purina lab chow | g | Female | Adult | 37 | captured at Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | lactating | 5.5 SE | Laboratory | ||
Survival/ Mortality | 67 | over-winter survival | % | Female | Adult | 6 | Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | CANADA | ||||
Age at Fledging, Metamorphosis, Weaning | 24.9 | d | Both Male and Female | Juvenile | 43 | Exposure Factor Datasets | Laboratory | ||||||
Survival/ Mortality | 30 | over winter survival | % | Male | Juvenile | 30 | Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | "young of the yr" | CANADA |
Deer Mouse (Peromyscus maniculatus ssp. gambelii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 0.14 | mean dry stomach content mass | g | Female | Juvenile | 29 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.02 SE |
Food Ingestion Rate | 0.13 | mean dry stomach content mass | g | Male | Juvenile | 18 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.02 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 6.46 | maximal metabolic rate | cc O2/g/hr | Both Male and Female | Not Reported | 24 | collected 5 km east of Chico, Butte County, CA | Exposure Factor Datasets | 1.4 SD | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. nebrascensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 29.5 | duration of postpartum gestation | d | Female | Adult | 8 | captured in Alberta, Canada | Exposure Factor Datasets | 1.4 SE | Laboratory |
Duration of Incubation or Gestation | 25.5 | mean of 10 shortest times | d | Female | Adult | 10 | captured in Alberta, Canada | Exposure Factor Datasets | 0.3 SE | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. nubiterrae)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | see citation | figure of population density estimated as minimum number known to be alive | #/ha | Both Male and Female | Both Adults and Juveniles | 93 | Nantahala National Forest | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28.54 | d | Female | Adult | 22 | captured in Coche County, TN | Exposure Factor Datasets | 0.81 | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Torpor or Hibernation | winter | peak occurence of spontaneous torpor | Both Male and Female | Both Adults and Juveniles | 59 | Macon county, pine-hemlock forest | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. sonoriensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 2.25 | resting oxygen consumption rate at 25C | cc O2/g/hr | Both Male and Female | Not Reported | 9 | Exposure Factor Datasets | 0.04 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 24.2 | g | Not Reported | Not Reported | 29 | collected near Las Vegas, NV | Exposure Factor Datasets | 0.18 SE | Laboratory |
San Joaquin Antelope Squirrel (Ammospermophilus nelsoni)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 11 | "normal" home range estimated as area enclosed by points of capture | acres | Not Reported | Adult | 240 squirrel trapped | Panoche (elev., 1200') | Exposure Factor Datasets | San Benito |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 154.5 | g | Female | Adult | 3 | Exposure Factor Datasets |
California Ground Squirrel (Spermophilus beecheyi)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.7 | young/litter | Female | Adult | 26 | University of California, Santa Cruz Campus ( elev., 120 m) [lat., 37^0W; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | primiparous | 0.3 SE |
Clutch or Litter Size | 7.9 | young/litter | Female | Adult | 47 | University of California, Santa Cruz Campus ( elev., 120 m) [lat., 37^0W; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | multiparous | 0.3 SE |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.25 | young/litter | Female | Adult | 8 litters | Calaveras Reservoir | Exposure Factor Datasets | Alameda, Santa Clara |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 402.3 | g | Not Reported | Not Reported | 10 | University of California, Irvine | Exposure Factor Datasets | Orange |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Feb. - Mar. | Both Male and Female | Adult | Not Reported | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | |
Age at Sexual Maturity | 1 | yr | Both Male and Female | Adult | Not Reported | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 677 | g | Male | Adult | 61 | Davis and Dixon | Exposure Factor Datasets | Solano, Yolo | 113.5 |
Body Weight - Mean | 516 | g | Female | Adult | 112 | Davis and Dixon | Exposure Factor Datasets | Solano, Yolo | 104.5 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Population Density | 32.0 | #/ha | Not Reported | Adult | 5 study sites | Concord Naval Weapons Station | Exposure Factor Datasets | Contra Costa | 16.23 SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.3 | young/litter | Female | Adult | 20 | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | multiparous |
Merriam's Kangaroo Rat (Dipodomys merriami)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 62.0 | average range of movement after 3 captures | m | Both Male and Female | Adult | Not Reported | San Simon Valley | Exposure Factor Datasets | 4.7 | |
Metabolic Rate | maintenance energy expenditure estimated from oxygen consumption | kcal/day | Both Male and Female | Adult | 6/sampling period; 10 periods | captured at San Simon Valley, AZ from Aug. - July | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Longevity | at least 36 | oldest recorded | mo | Female | Adult | 3 | Cave Creek Bajada, Cochise County (elev., 1330 m) | Exposure Factor Datasets |
Survival/ Mortality | 0.304 | death rate per yr | /yr | Male | Not Reported | 443 | Cave Creek Bajada, Cochise County (elev., 1330 m) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.5 | pups/litter | Female | Adult | 51 | captured near Palm Springs, CA | Exposure Factor Datasets | Laboratory | |
Duration of Incubation or Gestation | 33 | modal duration | d | Female | Adult | 65 | captured near Palm Springs, CA | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.2 | pups/litter | Female | Adult | 4 litters | Exposure Factor Datasets | Laboratory | |
Age at Fledging, Metamorphosis, Weaning | d | Not Reported | Juvenile | 4 litters | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | see citation | figure of daily food intake | g/d | Female | Adult | 4-16 | captured in Clark County, NV | Exposure Factor Datasets | non-reproductive, lactating or gestating | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 1.2 | average oxygen consumption rate at 31-34C | cc O2/g/hr | Not Reported | Not Reported | 25 | captured at Lovejoy Buttes, Los Angeles County, CA | Exposure Factor Datasets | Laboratory |
Metabolic Rate | OC = 3.57 + (-0.176)(T - 20.14) | equation relating oxygen consumption (OC) to ambient temperature (T, 9-31C) | cc O2/g/hr | Not Reported | Not Reported | 25 | captured at Lovejoy Buttes, Los Angeles County, CA | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Longevity | longest recorded longevity | mo | Not Reported | Adult | 2 | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | 3.39 | acres | Female | Adult | 4 | Presidio County | Exposure Factor Datasets |
Population Density | 1 | #/1.63 acres | Male | Adult | Not Reported | Presidio County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 37.4 | g | Both Male and Female | Adult | 13 | Great Basin Desert, near Reno | Exposure Factor Datasets | 5.0 SD |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of 4 seasonal means | g | Not Reported | Not Reported | 20-42/season | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | San Bernardino |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 0.49 | annual composite home range estimated by principal component method (95% probability) | ha | Not Reported | Not Reported | 718 recapture loci | Warm Springs Valley, Washoe County | Exposure Factor Datasets |
Pacific Pocket Mouse (Perognathus longimembris ssp. pacificus)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Population Density | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. gracilis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Surface Area | SA = 8.5 x (weight)2/3 | Weight in grams multiplied by 2/3 power | cm2 | Not Reported | Adult | 2 | Exposure Factor Datasets | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. rubidus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 3.11 | resting oxygen consumption rate at 25C | cc O2/g/hr | Male | Not Reported | 10 | Exposure Factor Datasets | 0.22 SE | Laboratory |