Rodents (Rodentia)
Little Pocket Mouse (Perognathus longimembris)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 12.68 - 0.286T | equation for average maintenance metabolism estimated as oxygen consumption (OC) at ambient temperatures (T; <30C). | ml O2/g/hr | Not Reported | Not Reported | 27 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 7.4 | g | Both Male and Female | Adult | 8 | Great Basin Desert, near Reno | Exposure Factor Datasets | 1.1 SD |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 5.78 | embryos/litter | Female | Adult | 9 | Floating Island, Tooele County (elev., 1300-1420 m) | Exposure Factor Datasets | 0.22 |
Deer Mouse (Peromyscus maniculatus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | ANIMAL MATTER: Coleoptera adults (4.8); Coleoptera larvae (0.1); Grasshoppers (2.5); Leaf hoppers (7.0); Lepidoptera adults (0.5); Lepidoptera larvae (1.3); Spiders (0.3); PLANT MATTER: Seeds (65.4); Total forbs (4.3) - Kochia scoparia (0.6); Total grasses and sedges (4.8); Total shrubs (2.6). | estimated percent volume, by ranking method, of total matter in stomach contents | % | Both Male and Female | Both Adults and Juveniles | 97 | Pawnee National Grassland | Exposure Factor Datasets |
| Dietary Composition | ANIMAL MATTER: Coleoptera adults (11.0); Coleoptera larvae (3.6); Grasshoppers (6.4); Leaf hoppers (13.3); Lepidoptera adults (2.3); Lepidoptera larvae (19.4); Spiders (2.6); PLANT MATTER: Seeds (22.5); Total forbs (4.7) - Kochia scoparia (1.9); Total grasses and sedges (4.0); Total shrubs (3.8). | estimated percent volume, by ranking method, of total matter in stomach contents | % | Both Male and Female | Both Adults and Juveniles | 108 | Pawnee National Grassland | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | Range of weighted means of dry weights of stomach contents; | mg | Female | Adult | 33-116 | Ward and McLean Counties | Exposure Factor Datasets | Gravid or lactating |
| Food Ingestion Rate | range of weighted means of dry weights of stomach contents; | mg | Male | Adult | 59-359 | Ward and McClean Counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.70 | #/litter | Female | Adult | 10 | Pinawa, Manitoba | Exposure Factor Datasets | primiparous | CANADA | 0.54 SE |
| Clutch or Litter Size | 5.24 | #/litter | Female | Adult | 46 | Pinawa, Manitoba | Exposure Factor Datasets | multiparous | CANADA | 0.22 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 3.21 | average resting metabolic rate estimated as oxygen consumption at 14.45C | ml O2/g/hr | Male | Adult | 4 | animals placed in cages in forest near Lethbridge, Alberta | Exposure Factor Datasets | CANADA | 0.10 SE |
| Metabolic Rate | 2.66 | average resting metabolic rate estimated as oxygen consumption at 20.6C | ml O2/g/hr | Male | Adult | 4 | animals placed in cages in forest near Lethbridge, Alberta | Exposure Factor Datasets | CANADA | 0.08 SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr. - Dec. | Both Male and Female | Adult | Not Reported | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets | |
| Home Range | 0.24 | acres | Male | Adult | 29 | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| 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 | 78-105 | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | late Nov. -late Apr. | Both Male and Female | Adult | Not Reported | Taylor, Williamson County | Exposure Factor Datasets | |
| Clutches or Litters per year | 4 | litters/yr | Female | Adult | 110 litters | Taylor, Williamson County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 31 | mean distance of feeding or exploratory records from center of activity | m | Both Male and Female | Adult | 10 | Missoula | 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) | g | Male | Adult | 1-24/mo | University of British Columbia | Exposure Factor Datasets | CANADA |
| Body Weight - Mean | range of monthly means at control sites | g | Male | Adult | 1-21/mo | University of British Columbia | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | range of mean neonatal growth rate from 3 sites | g/d | Both Male and Female | Neonate | 15-25 | adults 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 | Laboratory |
| Metabolic Rate | range of mean oxygen consumption from 3 sites | ml O2/animal/h | Both Male and Female | Not Reported | 21-26 | 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 | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.1 | #/litter | Female | Adult | 55 | Anytown (elev., 400 m) | Exposure Factor Datasets | Yolo | 0.2 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 48.72 | based on presence of cornified vaginal epithelial cells | d | Female | Adult | 186 | Exposure Factor Datasets | 1.23 | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | range of monthly estimates | #/ha | Male | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 14.5 | g | Both Male and Female | Adult | 51 | Jefferson and Douglas counties | Exposure Factor Datasets | 2.6 SD |
Salt-marsh Harvest Mouse (Reithrodontomys raviventris)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 10.0 | g | Both Male and Female | Adult | 15 | captured in Contra Costa County, CA | Exposure Factor Datasets | Laboratory | |
| Water Ingestion Rate | 0.218 | rate of fresh water consumption; body weight range = 8.3-11.5g | cc/g/d | Both Male and Female | Adult | 6 | captured in Contra Costa County, CA | Exposure Factor Datasets | Laboratory |
California Vole (Microtus californicus)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | "extra large" body weight corrected for embryos (12.8 % of population) | g | Female | Adult | 123 | Brooks Island, San Francisco Bay | Exposure Factor Datasets | >25 d | Contra Costa |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | 1.9 | litters per female per 12 wks | litters/12 wks | Female | Adult | 12 | Exposure Factor Datasets | adult | 0.2 SE | Laboratory | |
| Clutch or Litter Size | 3.5 | young/litter | Female | Adult | 12 | Exposure Factor Datasets | subadult (4 wks) | 0.6 SE | Laboratory | ||
| Body Fat (total or %) | 0.45 | g/g lean dry mass | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory | ||||
| Clutches or Litters per year | 0.3 | litters per female per 12 wks | litters/12 wks | Female | Adult | 12 | Exposure Factor Datasets | subadult (4 wks) | 0.2 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | change in body weight; instantaneous rate based on Brody 1945 | %/d | Both Male and Female | Juvenile | Not Reported | Richmond field station; Russell Reservation | Exposure Factor Datasets | Contra Costa | |
| Growth Rate | change in body weight; instantaneous rate based on Brody 1945 | %/d | Both Male and Female | Adult | Not Reported | Richmond field station; Russell Reservation | Exposure Factor Datasets | subadult | Contra Costa |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 504 | metabolizable energy; equivalent to average daily metabolic rate | cal/g/d | Not Reported | 7 | Exposure Factor Datasets | 28 d or older | 28 SE | Laboratory | |
| Metabolic Rate | 485 | metabolizable energy; equivalent to average daily metabolic rate | cal/g/d | Not Reported | 8 | Exposure Factor Datasets | 28 d or older | 16 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | OC = 1.94W^-0.209 | equation relating basal oxygen consumption (OC; ml O2/g/hr) to body weight (W, g; 260-800g) | ml O2/g/hr | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|
| Survival/ Mortality | range of mean minimum survival rates per 14 d | Male | Adult | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets | |
| Survival/ Mortality | range of mean minimum survival rates per 14 d | Male | Juvenile | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets | "subadults" (26-39 g) |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|
| Population Density | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Richmond Field Station | Exposure Factor Datasets | Contra Costa | breeding |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of means for 2 yrs | young/litter | Female | Adult | 11/yr | Camp Ohlone [lat., 37^o29'N; long., 121^o45'W] | Exposure Factor Datasets | Alameda |
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 of average population density over 3 yrs | #/ha | Not Reported | Not Reported | 10-18/yr | Elkhorn Plain Ecological Reserve | Exposure Factor Datasets | San Luis Obispo |
| Population Density | range of average population density in 2 habitat types | #/ha | Not Reported | Not Reported | 11-18/habitat type | Pixley National Wildlife Refuge | Exposure Factor Datasets | Tulare |
Deer Mouse (Peromyscus maniculatus ssp. bairdii)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Wheat seeds (0.488 +/- 0.034 SE), Lespedeza seeds (0.376 +/- 0.044 SE), Elm seeds (0.013 +/- 0.004 SE), Maple seeds (0.017 +/- 0.003 SE). | weekly consumption rates of seeds | g/g/wk | Both Male and Female | Juvenile | 20 | Exposure Factor Datasets | 30-60 d | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 23 | Mode | d | Female | Adult | 161 | Exposure Factor Datasets | Gestating | Laboratory | |
| Duration of Incubation or Gestation | 27 | Mode | d | Female | Adult | Not Reported | Exposure Factor Datasets | Lactating | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | g | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 3.01 | g/24 hrs | Not Reported | Adult | 2 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | see citation | figure of body weights at different ages | Both Male and Female | Both Adults and Juveniles | Not Reported | Exposure Factor Datasets | 0 - 40 wks | 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 | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of mean weights for 6 time periods | g | Both Male and Female | Juvenile | 232-261 | Original pairs trapped at Heart Lake, Northwest Territories | Exposure Factor Datasets | 3-18 d | Nursing | Laboratory | ||
| Growth Rate | 0.36 | average growth between birth and weaning. | g/d | Both Male and Female | Juvenile | 57 | Original pairs trapped at Heart Lake, Northwest Territories | Exposure Factor Datasets | 0-21 d | Nursing | 0.01 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Condition | Countries | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.20 | g/d | Both Male and Female | Juvenile | 47 | adults captured at Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | 24 - 40 d | 0.05 SE | Laboratory | |||
| Growth Rate | 0.27 | difference in weight of newly emerged young between 1st and 2nd capture/ time interval (4-11d) | g/d | Male | Juvenile | 31 | Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | CANADA | 0.06 SE | |||
| Food Ingestion Rate | 3.67 | daily ingestion rate; animals fed Purina lab chow; body weight averaged 20.34 g | g/d | Female | Adult | 40 | captured at Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | non-breeding | 0.11 SE | Laboratory | ||
| Growth Rate | 0.22 | difference in weight of newly emerged young between 1st and 2nd capture/ time interval (4-11d) | g/d | Female | Juvenile | 30 | Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | CANADA | 0.05 SE |
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 | 0.3 | mean dry stomach content mass | g | Female | Adult | 97 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.03 SE |
| Food Ingestion Rate | 0.14 | mean dry stomach content mass | g | Male | Juvenile | 69 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.01 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 7.9 | average long term metabolic rate, assessed overnight | cc O2/g/h | Both Male and Female | Not Reported | 20 | collected 5 km east of Chico, Butte County, CA | Exposure Factor Datasets | 0.139 SD | Laboratory |
| Body Fat (total or %) | 14.99 | % | Both Male and Female | Not Reported | 36 | collected 5 km east of Chico, Butte County, CA | Exposure Factor Datasets | 2.68 SD | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. nebrascensis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 60 | youngest age at conception | d | Male | Adult | Not Reported | captured in Alberta, Canada | Exposure Factor Datasets | Laboratory |
| Age at Sexual Maturity | 35 | youngest age at conception | d | Female | Adult | Not Reported | captured in Alberta, Canada | Exposure Factor Datasets | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. nubiterrae)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Water Ingestion Rate | 0.11 | experimental temperature = 15C | g/g/d | Male | Adult | 12 | captured in Macon County, NC | Exposure Factor Datasets | 0.01 SE | Laboratory |
| Water Ingestion Rate | 0.12 | experimental temperature = 27C | g/g/d | Male | Adult | 12 | captured in Macon County, NC | Exposure Factor Datasets | 0.01 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 4.2 | g | Both Male and Female | Juvenile | 62 | Exposure Factor Datasets | 1 wk | 0.13 | Laboratory | |
| Body Weight - Mean | 17.1 | g | Both Male and Female | Juvenile | 59 | Exposure Factor Datasets | 10 wks | 0.43 | Laboratory |
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 | 3.68 | oxygen consumption at 20C | ml O2/g/hr | Not Reported | Not Reported | 9 | captured at White Mountain Research Station or Salton Sea, CA | Exposure Factor Datasets | 0.272 SE | Laboratory |
| Metabolic Rate | 2.68 | oxygen consumption at 32C | ml O2/g/hr | Not Reported | Not Reported | 9 | captured at White Mountain Research Station or Salton Sea, CA | Exposure Factor Datasets | 0.349 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 |
|---|---|---|---|---|---|---|---|---|---|
| Longevity | maximum observed age | yr | Not Reported | Adult | Not Reported | Panoche (elev., 1200') | Exposure Factor Datasets | San Benito | |
| Time of Hatching or Parturition | Mar. | Not Reported | Neonate | Not Reported | Panoche (elev., 1200') | Exposure Factor Datasets | San Benito |
California Ground Squirrel (Spermophilus beecheyi)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | embryos/female | Female | Adult | Not Reported | Coho creek | Exposure Factor Datasets | Tulare | |
| Time of Mating/ Laying | Feb. - Apr. | Both Male and Female | Adult | Not Reported | Coho creek | Exposure Factor Datasets | Tulare |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | 7 | #/acre | Both Male and Female | Both Adults and Juveniles | Not Reported | Calaveras Reservoir | Exposure Factor Datasets | Alameda, Santa Clara |
| Clutches or Litters per year | 1 | litters/yr | Female | Adult | Not Reported | Calaveras Reservoir | Exposure Factor Datasets | Alameda, Santa Clara |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 531 | g | Not Reported | Not Reported | 6 | captured at University of California, Riverside | Exposure Factor Datasets | 75 | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | % tagged young surviving to following year to become breeding adults; range over 3 yrs | % | Both Male and Female | Juvenile | 321 - 339/yr | San Joaquin Experimental Range | Exposure Factor Datasets | |
| Home Range | 400 | diameter of "typical" home range | ft | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Longevity | 5 | longest record of lifespan | yrs | Male | Adult | Not Reported | Hastings Natural History Reservation | Exposure Factor Datasets | Monterey |
| Time of Molt | June | molt of juvenile or adult pelage | Both Male and Female | Both Adults and Juveniles | Not Reported | Hastings Natural History Reservation | Exposure Factor Datasets | Monterey |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 599.6 | g | Not Reported | Not Reported | 10 | University of California, Irvine | Exposure Factor Datasets | Orange |
Merriam's Kangaroo Rat (Dipodomys merriami)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 44.1 | mean distance moved from site of initial capture | m | Male | Not Reported | 443 | Cave Creek Bajada, Cochise County (elev., 1330 m) | Exposure Factor Datasets |
| Home Range | 53.8 | mean distance moved from site of initial capture | m | Female | Not Reported | 339 | 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 | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 2.00 | field metabolic rate estimated from doubly labeled water | L CO2/d | Not Reported | Not Reported | 4-9 per mo/15 mo | Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] | Exposure Factor Datasets | San Bernardino | 0.45 SD |
| Population Density | 17.5 | #/ha | Not Reported | Not Reported | 5 | Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] | Exposure Factor Datasets | San Bernardino | 1.6 SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | seeds (75%); leaves (20%); flowers (3%); stems (1%); arthropods (1%) | % by weight of stomach contents | % | Not Reported | Not Reported | 172 | 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 | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Body Fat (total or %) | see citation | figure of seasonal changes in % body fat | % | Both Male and Female | Not Reported | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | San Bernardino |
| Body Weight - Mean | see citation | figure of seasonal changes in weight | g | Both Male and Female | Not Reported | Not Reported | 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 | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | Jan. - Mar. (begin); Apr. - May (peak); Aug. (end) | Female | Adult | Not Reported | San Simon Valley, Portal (elev., 1370 m) | Exposure Factor Datasets | |||
| Population Density | 11.47 | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | San Simon Valley, Portal (elev., 1370 m) | Exposure Factor Datasets | ||
| Metabolic Rate | OC = 5.32 - 0.134 T | equation relating oxygen consumption (OC) to temperature (T, 29-35C) | ml O2/g/hr | 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 |
|---|---|---|---|---|---|---|---|---|
| Home Range | 155 | cumulative home range diameter for 6-8 mo period | m | Both Male and Female | Not Reported | 34 | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets |
| Body Weight - Mean | see citation | figure of seasonal changes in weight | g | Both Male and Female | Both Adults and Juveniles | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | range in male and female % change in body weight per day following recapture during 4 trapping periods | %/d | Both Male and Female | Adult | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | "subadult" |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 36.7 | g | Not Reported | Adult | 30 | Exposure Factor Datasets | 3.7 SD | Laboratory | ||
| Metabolic Rate | 0.619 | resting metabolic rate at 30C | ml O2/min | Not Reported | Adult | 30 | Exposure Factor Datasets | 0.099 SD | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | d | Not Reported | Juvenile | 4 litters | adults captured at Alpine Butte, Los Angeles County, CA | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | 6.38 | acres | Male | Adult | 4 | Presidio County | Exposure Factor Datasets |
Stephens' Kangaroo Rat (Dipodomys stephensi)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | d | Both Male and Female | Juvenile | Not Reported | Exposure Factor Datasets | Laboratory | |||
| Body Weight - Mean | 4.4 | g | Both Male and Female | Neonate | 16 | Exposure Factor Datasets | 0 d | Laboratory |
| 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 monthly live trapping capture data at 2 sites | m | Male | Juvenile | 17-59 | 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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Population Density | #/ha | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
