Mammals
Long-tailed Weasel (Mustela frenata)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 18 | % body weight consumed/d | Both Male and Female | Adult | 7 | captured at Delta, Manitoba, Canada | Exposure Factor Datasets | Laboratory | |
| Body Weight - Mean | 107.6 | g | Male | Juvenile | 7 | captured at Delta, Manitoba, Canada | Exposure Factor Datasets | 5 wks | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 98.9 | g | Female | Adult | 17 | northern/central ID and Whitman County, WA | Exposure Factor Datasets | 14.4 SD |
| 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 | |
| Home Range | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 297 | g | Male | Adult | Not Reported | captured in White Pine County, NV | Exposure Factor Datasets | 36 SD | Laboratory |
Striped Skunk (Mephitis mephitis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2.85 | kg | Male | Both Adults and Juveniles | 15 animals | Bearville study area; Itasca county | Exposure Factor Datasets | > 2 years | 0.22 SE |
| Body Weight - Mean | 2.05 | kg | Male | Both Adults and Juveniles | 5 animals | Bearville study area; Itasca county | Exposure Factor Datasets | > 2 years | 0.38 SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | May-early June | Both Male and Female | Neonate | 118 females | Exposure Factor Datasets | Laboratory | ||
| Clutch or Litter Size | 4.28 | pups/litter | Female | Adult | 118 litters | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.8 | embryos; all ages | pups/litter | Female | Adult | 87 females | Saskatchewan; Alberta | Exposure Factor Datasets | CANADA | |
| Body Weight - Mean | 4.7 | kg | Male | Juvenile | 18 juveniles | SasKatchewan; Alberta | Exposure Factor Datasets | CANADA | 1.5 SD |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | review | Both Male and Female | Embryo | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Fat (total or %) | 31.9 | % | Male | Adult | 5 | Delta Marsh Mannitoba | Exposure Factor Datasets | 1.3 SE | Laboratory |
Sea Otter (Enhydra lutris)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | 15 | maximum density at this time of year | per 1000 ha | Male | Adult | 7 | Central coast | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Water Ingestion Rate | 62 | Sea water ingestion rate | mL / kg-d | Both Male and Female | Adult | 5 | Exposure Factor Datasets | 27 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see Figure 1 | oxygen consumption measured at 15-20 C | Not Reported | Not Reported | 2 | Exposure Factor Datasets | fed | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 28.3 | kg | Male | Adult | 79 | Amchitka Island | Exposure Factor Datasets | 7.98 SD |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | daily home range, estimated from hourly trangulations during 24-hr watches using the minimum convex polygon method | ha | Female | Adult | 16 animals | Monterey to San Luis Obispo | Exposure Factor Datasets |
California Sea Lion (Zalophus californianus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 5.96 | daily milk intake as % of pup body weight | %/d | Male | Pup | 5 | San Nicolas Island | Exposure Factor Datasets | 1-2 mo | 0.405 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 609 | daily milk intake | g/d | Female | Pup | 19 | San Nicolas Island [lat., 33^oW; long., 119^oW] | Exposure Factor Datasets | 1-2 mo | 24.0 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.132 | pre-el Nino; 0-2 months | kg/d | Not Reported | Pup | 32 | San Nicolas Island | Exposure Factor Datasets | 0-2 months | 0.007 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | see citation | figure of % occurrence of prey items in scats | % | Female | Adult | 73 - 283 | San Miguel and San Clemente Islands | Exposure Factor Datasets |
California Ground Squirrel (Spermophilus beecheyi)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 8.9 | weight at birth | g | Not Reported | Juvenile | 6 litters (42 animals) | Exposure Factor Datasets | 0 d | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | range of means for 2 yrs | #/ha | Both Male and Female | Adult | Not Reported | Camp Ohlone [lat., 37^o29'N; long., 121^o45'W] | Exposure Factor Datasets | Alameda |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | 5-6 | wks | Not Reported | Juvenile | Not Reported | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 0.59 | above ground area occupied for at least one mo | acres | Female | Adult | 51 | 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 | 512.4 | g | Male | Not Reported | 397 | Hastings Natural History Reservation | Exposure Factor Datasets | Monterey |
Merriam's Kangaroo Rat (Dipodomys merriami)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 44.0 | g | Male | Adult | 443 | Cave Creek Bajada, Cochise County (elev., 1330 m) | Exposure Factor Datasets | 0.3 |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 25.0 | median lifetime distance moved from home range center (from first to last capture) | m | Female | Adult | 25 | Portal | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Population Density | 16.2 | #/ha | Not Reported | Not Reported | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | 0.466 | acres | Male | Adult | Not Reported | Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | see citation | figure of changes in weight over time | g | Not Reported | Juvenile | 4 litters | adults captured at Alpine Butte, Los Angeles County, CA | Exposure Factor Datasets | 0 - 140 d | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Jan. - June | Both Male and Female | Adult | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | Inyo |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | d | Both Male and Female | Juvenile | 34 | captured at Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets | Laboratory |
Merriam's Kangaroo Rat (Dipodomys merriami), Little Pocket Mouse (Perognathus longimembris)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Molt | July and August | Not Reported | Not Reported | Not Reported | Owens Valley | Exposure Factor Datasets | Inyo |
San Joaquin Kangaroo Rat (Dipodomys nitratoides)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
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 monthly live trapping capture data at 2 sites | m | Female | Adult | 94 | 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 | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Longevity | 19 | maximum time of persistence at site | mo | Both Male and Female | Adult | Not Reported | Motte Rimrock Reserve and San Jacinto Wildlife Area | Exposure Factor Datasets | Riverside |
Little Pocket Mouse (Perognathus longimembris)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Longevity | lifespan in captivity | yrs | Both Male and Female | Adult | 2 | captured in San Diego County | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of mean body weights measured multiple times in individuals | g | Both Male and Female | Not Reported | 6 individuals | Owens Valley | Exposure Factor Datasets | Inyo |
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 (9.8); Coleoptera larvae (1.1); Grasshoppers (7.7); Leaf hoppers (1.7); Lepidoptera adults (1.3); Lepidoptera larvae (1.0); Spiders (2.4); PLANT MATTER: Seeds (47.8); Total forbs (4.8) - Kochia scoparia (3.1); Total grasses and sedges (4.3); Total shrubs (0.9). | estimated percent volume, by ranking method, of total matter in stomach contents | % | Both Male and Female | Both Adults and Juveniles | 102 | Pawnee National Grassland | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | range of weighted means of dry weights of stomach contents | mg | Not Reported | Juvenile | 12-82 | Ward and McClean Counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 64.6 | median age at maturity | d | Female | Adult | 139 | Pinawa, Manitoba | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 3.12 | average daily metabolic rate estimated as oxygen consumption at 20.6C | ml O2/g/hr | Male | Adult | 4 | Exposure Factor Datasets | 0.14 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.7 | litter size estimated from counts of uterine scars and embryos | #/litter | Female | Adult | 6 | salt marsh, San Pablo and San Francisco Bays | Exposure Factor Datasets | 0.7 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| 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 | 53-66 | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | 0.28 | mean density | #/ha | Both Male and Female | Both Adults and Juveniles | 74 | Portal, Cochise County (elev. 1330 m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Home Range | 0.03 | ha | Male | Adult | 18 | eastern slope, Colorado Rocky Mountains (elev., 3120 m) | Exposure Factor Datasets | 0.54 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 4.46 | rate of energy expenditure for lactation per gram maternal weight | kJ/g/d | Female | Adult | 10 | Exposure Factor Datasets | 0.29 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of means from 3 sites | pups/litter | Female | Adult | 19-29 | 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 |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Clutches or Litters per year | litters/yr | Female | Adult | Not Reported | Cascade Mountains, Fish Lake [lat., 47^o, 49'N; long., 120^o, 40'W] | Exposure Factor Datasets |
Salt-marsh Harvest Mouse (Reithrodontomys raviventris)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Mar. - Nov. | breeding | Both Male and Female | Adult | Not Reported | San Francisco Bay marshes | Exposure Factor Datasets |
California Vole (Microtus californicus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | "typical" body weight | g | Male | Adult | Not Reported | Brooks Island, San Francisco Bay | Exposure Factor Datasets | >25 d | Contra Costa | |
| Body Fat (total or %) | see citation | figure relating fat content to body weight | g | Both Male and Female | Both Adults and Juveniles | 44 | Brooks Island, San Francisco Bay | Exposure Factor Datasets | Contra Costa |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.7 | young/litter | Female | Adult | 24 | Exposure Factor Datasets | subadult (4 weeks) | 0.2 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.0 | mean; height of growing season | pups/litter | Female | Adult | 4 | Russell Reservation | Exposure Factor Datasets | Contra Costa | 1.3 (95%CI) |
| Body Fat (total or %) | see citation | figure of seasonal changes in body fat content | g/g dry lean wt | Both Male and Female | Both Adults and Juveniles | Richmond Field Station and Russel Reservation | Exposure Factor Datasets | Contra Costa |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 693 | ingested energy; fed ryegrass seeds for 21 d | cal/g/d | Not Reported | 8 | Exposure Factor Datasets | 28 d or older | 22 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | range of minimum # alive in 8 areas at 103 weekly intervals | #/acre | Female | Both Adults and Juveniles | Not Reported | Tilden Regional Park and Richmond Field Station | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Grasses, 20 species (0 - 21.6%); Forbs, 16 species (0 - 12.4%); Shrubs, 1 species (1.1%); Cactus, 1 species (1.9%) | range of % composition of species; estimated as sum of all fragments per food species from all stomachs divided by sum of fragments from all stomachs | % | Both Male and Female | Both Adults and Juveniles | 29 | Fort Collins, Larimer County (elev. 1650-2200 m) | Exposure Factor Datasets |
Brush Rabbit (Sylvilagus bachmani)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | 0.9 | #/acre | Both Male and Female | Both Adults and Juveniles | 10 | Berkeley Hills | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 191 | mean range diameter | ft | Female | Juvenile | 22 | Humboldt Bay | Exposure Factor Datasets | Humboldt |
Desert Kit Fox (Vulpes macrotis ssp. arsipus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 1936 | g | Female | Adult | 13 foxes | Rand Open Area and Desert Tortoise Research Natural Area | Exposure Factor Datasets | Kern | 64 SE |
San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Hatching or Parturition | February-March | Female | Adult | Not Reported | Buena Vista Valley | Exposure Factor Datasets | Kern |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | deer mice (10.8%), kangaroo rats (8.4%), pocket gophers (2.9%), pocket mice (20.0%), woodrats (0.6%), ground squirrels (6.4%), birds (7.5%), insects (33.5%), leporids (4.7%), reptiles (2.0%), | percentage occurrence of prey types in feces | % | Both Male and Female | Adult | 834 feces | Carrizo Plain Natural Area | Exposure Factor Datasets | San Luis Obispo |
Kit Fox (Vulpes macrotis ssp. nevadensis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 1.4 | calculated with Minimum Area Method | km2 | Female | Adult | 4 | Pine Valley | Exposure Factor Datasets | 0.7 SD |
Fresno Kangaroo Rat (Dipodomys nitratoides ssp. exilis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2.2 | g | Both Male and Female | Neonate | 7 | adults captured near Fresno | Exposure Factor Datasets | at birth | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. bairdii)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of means for 6 sampling periods after founding | g | Both Male and Female | Adult | 16-30/group | Exposure Factor Datasets | 80 - 97 d | Laboratory |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | Range of mean body weights for females with varying litter sizes (2-9) | g | Female | Adult | 3 - 97 | Exposure Factor Datasets | Gestating - Lactating | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| 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 | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. borealis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 24.4 | g | Female | Adult | 42 | Original pairs trapped at Heart Lake, Northwest Territories | Exposure Factor Datasets | Lactating | 0.4 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 9.91 | g | Both Male and Female | Weanling | 151 | adults captured at Kananaskis Valley, Alberta [lat., 51 N] | Exposure Factor Datasets | 0.10 SE | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | #/litter | Female | Adult | 8 | captured in Lethbridge, Alberta | Exposure Factor Datasets | Laboratory |
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 | 0.24 | mean dry stomach content mass | g | Female | Adult | 100 | 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 | 2.04 | mean basal metabolic rate estimated by oxygen consumption | cc O2/g/h | Not Reported | Not Reported | 29 | collected near Berkeley, CA | Exposure Factor Datasets | 0.07 SE | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. nebrascensis)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Population Density | #/acre | Not Reported | Adult | Not Reported | Edwin S. George Reserve, University of Michigan | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. nubiterrae)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 16.1 | g | Male | Adult | 12 | captured in Macon County, NC | Exposure Factor Datasets | 0.8 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.06 | #/litter | Female | Adult | 20 | captured in Coche County, TN | Exposure Factor Datasets | Laboratory |
Deer Mouse (Peromyscus maniculatus ssp. sonoriensis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.73 | potential litter size estimated using the larger of corpora lutea count or embryo sites | #/litter | Female | Adult | 30 | White Mountain (elev., 7,000 ft) | Exposure Factor Datasets | Mono | 0.67 SE |
Audubon's Cottontail (Sylvilagus audubonii ssp. arizonae)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | minimum age for breeding | mo | Both Male and Female | Adult | Not Reported | Phoenix | Exposure Factor Datasets |
Riparian Brush Rabbit (Sylvilagus bachmani ssp. riparius)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Population Density | review | reported overall population density at carrying capacity is 3 animals/ha (from unpublished reports) | Both Male and Female | Not Reported | Not Reported | Caswell Memorial State Park | Exposure Factor Datasets |
Brush Rabbit (Sylvilagus bachmani ssp. ubericolor)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutches or Litters per year | estimated by dividing length of breeding season by gestation period or time required to produce a litter | litters/yr | Female | Adult | Not Reported | E.E. Wilson Game Management Area, Corvallis | Exposure Factor Datasets |
Ornate Shrew (Sorex ornatus)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of mean monthly weights | g | Female | Adult | 1-15/mo | San Francisco Bay region | Exposure Factor Datasets |
Pallid Bat (Antrozous pallidus)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Clutch or Litter Size | Review | Both Male and Female | Not Reported | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 21.7 | g | Male | Adult | 135 | Exposure Factor Datasets | Napa | 0.2 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Inhalation Rate | 0-52 | respiration rate in dormant bats at 40 deg F | respirations/min | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 25 | increase in body weight over time (to adult weight) | g/2-3 mo | Both Male and Female | Juvenile | 20 bats | Exposure Factor Datasets | Laboratory |
Coyote (Canis latrans)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Home Range | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 10 | kg | Both Male and Female | Not Reported | 18 | captured in Maricopa County, AZ | Exposure Factor Datasets | 0.04 SE | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Home Range | 1.0 | minimum area home range | km2 | Both Male and Female | Juvenile | 4 | Wichita Mountains National Wildlife Refuge | Exposure Factor Datasets | "pups" | 0.7 SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 9.7 | mean den area; land area around a den or rendezvous used by group | km2 | Male | Adult | 12 | Missouri River Breaks | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | range of means for two yearling age groups | kg | Male | Juvenile | 19-35 | Webb County [lat., 27^o20'-28^o00N; long., 99^o00'-99^o40'W] | Exposure Factor Datasets | 1.5 - 2.0 yrs |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | rodent (24.4%); deer (9.2%); other stock (7.6%); rabbit (26.4%); misc. (10.3%); sheep (5.3%); bird (8.2%); vegetation (8.6%) | overall % volume of stomach contents | % | Not Reported | Not Reported | 297 | southern region | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Migration or Dispersal | Oct. - Nov. | Both Male and Female | Juvenile | Not Reported | Aitkin and Itasca counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.45 | #/litter | Female | Adult | Not Reported | National Elk Refuge, Jackson Hole | Exposure Factor Datasets | 0.33 SD |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.31 | kg/wk | Both Male and Female | Juvenile | 6 | Exposure Factor Datasets | 0 - 8 wks | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | wks | Both Male and Female | Juvenile | 4 | Exposure Factor Datasets | Laboratory |
Kit Fox (Vulpes macrotis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 9.8 | home range as calculated with the grid-cell method | km2 | Female | Adult | 3 foxes | 7.5 km NW Tonopah | Exposure Factor Datasets | 0.1.4 SE |
