Audubon's Cottontail (Sylvilagus audubonii)
Audubon's Cottontail (Sylvilagus audubonii)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Population Density | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
| Home Range | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Population Density | 6.6 | #/mi2 | Not Reported | Not Reported | 31 | Pawnee National Grasslands | Exposure Factor Datasets | 5.4 - 7.8 (95% CL) |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Grasses, 20 species (0 - 22.2%); Forbs, 16 species (0 - 17.4%); Shrubs, 1 species (0.4 - 1.5%); Cactus, 1 species (0 - 0.1%) | range of % composition of species over 2 yrs; 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 | 18 - 30 | Fort Collins, Larimer County (elev. 1650-2200 m) | Exposure Factor Datasets |
| 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 |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Dec. - June | time of breeding | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | ||
| Clutch or Litter Size | 3.6 | young/litter | Female | Adult | 19 | Exposure Factor Datasets | ||
| Clutches or Litters per year | >2 | litters/yr | Female | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Grasses (51.2%); Forbs (45.4%) | cumulative dietary frequency estimated from stomach contents (sum of all fragments of a plant species divided by total # plant fragments) | % | Not Reported | Not Reported | 172 | Castro County, range playa basins | Exposure Factor Datasets |
| Dietary Composition | Grasses (32.1%); Forbs (66%) | cumulative dietary frequency estimated from stomach contents (sum of all fragments of a plant species divided by total # plant fragments) | % | Not Reported | Not Reported | 172 | Castro County, agricultural playa basins | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Grasses (37.9%); Forbs (41.3%); Shrubs (20.8%) | % total dietary bulk (volume), estimated from stomach contents | % | Not Reported | Not Reported | 97 | Sugarloaf Mountain, Maricopa County (elev., 850m) | Exposure Factor Datasets |
| Clutch or Litter Size | 3.7 | young/litter | Female | Adult | Not Reported | Sugarloaf Mountain, Maricopa County (elev., 850m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | young/litter | Female | Adult | 2 | Volta and Kesterson | Exposure Factor Datasets | Merced |
Audubon's Cottontail (Sylvilagus audubonii ssp. audubonii)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Longevity | 19 | longest life span recorded | mo | Both Male and Female | Adult | 29 | Sacramento Valley, Durham | Exposure Factor Datasets |
| Clutch or Litter Size | 3 | young/litter | Female | Adult | Not Reported | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Time of Mating/ Laying | Jan. - Dec. | time of breeding | Both Male and Female | Adult | Not Reported | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Home Range | up to 15 | acres | Male | Adult | 11 | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Home Range | < 1 | acre | Female | Adult | 10 | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Body Weight - Mean | 951 | g | Female | Adult | 9 measurements from 6 animals | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Body Weight - Mean | 839 | g | Male | Adult | 16 observations from 7 animals | Sacramento Valley, Durham | Exposure Factor Datasets | |
| Body Weight - Mean | g | Both Male and Female | Juvenile | 9 observations from 8 animals | Sacramento Valley, Durham | Exposure Factor Datasets | ||
| Age at Sexual Maturity | reported as age at sexual maturity as lactation first observed | mo | Both Male and Female | Adult | Not Reported | Sacramento Valley, Durham | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii ssp. arizonae)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 725 | g | Male | Adult | 87 | southern portion of state | Exposure Factor Datasets | ||
| Body Weight - Mean | 860 | g | Female | Adult | 40 | southern portion of state | Exposure Factor Datasets | non-pregnant | |
| Time of Mating/ Laying | Jan. - Aug. | time of breeding | Both Male and Female | Adult | Not Reported | southern portion of state | Exposure Factor Datasets | ||
| Clutch or Litter Size | 2.9 | estimated by embryo counts | young/litter | Female | Adult | 56 | southern portion of state | Exposure Factor Datasets | |
| Age at Sexual Maturity | < 9 | earliest age when pregnancy noted | mo | Female | Adult | Not Reported | southern portion of state | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 2.7 | estimated by uterine scar counts | young/litter | Female | Adult | Not Reported | Phoenix | Exposure Factor Datasets |
| Time of Mating/ Laying | Jan. - Aug. | time of breeding | Both Male and Female | Adult | 101 | Phoenix | Exposure Factor Datasets | |
| Age at Sexual Maturity | 3 | minimum age for breeding | mo | Both Male and Female | Adult | Not Reported | Phoenix | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii ssp. neomexicanus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 2.60 | young/litter | Female | Adult | 10 | Big Lake | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. bairdii), Audubon's Cottontail (Sylvilagus audubonii ssp. neomexicanus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Duration of Incubation or Gestation | 28 | d | Both Male and Female | Adult | 3 litters | captured in Rago, Kansas | Exposure Factor Datasets | Laboratory |
| Duration of Incubation or Gestation | 28 | d | Both Male and Female | Adult | 3 litters | captured in Rago, Kansas | Exposure Factor Datasets | Laboratory |
Audubon's Cottontail (Sylvilagus audubonii ssp. vallicola)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Foraging Distance | range of average foraging diameters for rabbits with 5 recapture rates, overall range 30 - 1450 ft. | ft | Both Male and Female | Both Adults and Juveniles | 5 - 39 | San Joaquin Experimental Range | Exposure Factor Datasets | |
| Home Range | acres | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets | ||
| Population Density | 1 | range of yearly estimates for 3 yrs | #/ 1.2 - 2.6 acres | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
| Body Weight - Mean | g | Both Male and Female | Adult | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii), Brush Rabbit (Sylvilagus bachmani)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | review | see citation for home range allometry for 14 species of lagomorphs | Not Reported | Adult | Not Reported | Exposure Factor Datasets | |
| Home Range | review | see citation for home range allometry for 14 species of lagomorphs | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
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