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Mustela frenata

Citation:

Measurement of weasel body size

Author(s)
Johnson, Donald R.
Pages
2277-2279
Year
Volume
69
Exposure Endpoint Type Endpoint Value Error Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 98.9 14.4 SD g Female Adult northern/central ID and Whitman County, WA 17 Exposure Factor Datasets
Citation:

Metabolism of weasels: The cost of being long and thin

Author(s)
Brown, James H. and Robert C. Lasiewski
Pages
939-943
Year
Volume
53
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 297 36 SD g Male Adult captured in White Pine County, NV Not Reported Exposure Factor Datasets
Body Weight - Mean 153 3 SD g Female Adult captured in White Pine County, NV Not Reported Exposure Factor Datasets
Metabolic Rate 1.36 standard metabolic rate at 32C, determined from oxygen consumption 0.2 kcal/hr Male Adult captured in White Pine County, NV 4 Exposure Factor Datasets
Metabolic Rate 0.84 standard metabolic rate at 32C, determined from oxygen consumption 0.12 SD kcal/hr Female Adult captured in White Pine County, NV 4 Exposure Factor Datasets
Surface Area SA = 6.04W^0.73 equation relating surface area (SA, cm2) to body weight (W, g), estimated from skin area cm2 Not Reported Adult captured in White Pine County, NV Not Reported Exposure Factor Datasets
Citation:

Winter and spring habits of weasels in central Iowa

Author(s)
Polderboer, Emmett B., Lee W. Kuhn and George O. Hendrickson
Pages
115-119
Year
Volume
5
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Meadow mouse (42.37%); Harvest mouse (24.57%); Deer mouse (11.86%); Mearns cottontail (7.6%); Short-tailed shrew (5.92%); House mouse (2.54%); Tree sparrow (1.69%); Grasshopper (0.84%); Unidentified (2.54%) % frequency in scats % Not Reported Not Reported Ames 97 scats Exposure Factor Datasets
Dietary Composition Meadow mouse (43.7%); Harvest mouse (14.5%); Deer mouse (6.3%); Mearns cottontail (10.4%); Short-tailed shrew (4.2%); Shaw pocket gopher (2.1%); Least weasel (18.8%) % frequency in scats % Not Reported Not Reported Ames 38 scats Exposure Factor Datasets
Home Range 25 average distance traveled from den in one night rods Not Reported Not Reported Ames Not Reported Exposure Factor Datasets
Population Density 4 #/160 acres Not Reported Not Reported Ames Not Reported Exposure Factor Datasets
Citation:

Notes on the ecology of weasels in Gunnison County, Colorado

Author(s)
Quick, Horace F.
Pages
281-290
Year
Volume
32
Exposure Endpoint Type Range Units Sex Life Cycle Stage Location Sample Size Type
Home Range 200 - 300 acres Not Reported Not Reported Gunnison County (elev., >7500 ft) Not Reported Exposure Factor Datasets

Ammospermophilus nelsoni

Citation:

Natural history of the ground squirrels of California

Author(s)
Grinnel, J. and J.S. Dixon
Pages
597-708
Year
Volume
7
Exposure Endpoint Type Endpoint Value Range Units Sex Life Cycle Stage Sample Size Type
Body Weight - Mean 154.5 141.8 - 179.0 g Female Adult 3 Exposure Factor Datasets
Population Density 1 #/2 acres Not Reported Not Reported Not Reported Exposure Factor Datasets
Citation:

Population density, census methods, habitat relationships, and home range of the San Joaquin Antelope squirrel, 1988-1989

Author(s)
Harris, John H. and Danielle M. Stearns
Pages
37
Publisher
California Department of Fish and Game, Nongame Bird and Mammal Section
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Home Range 10.81 minimum convex polygon estimate, corrected for sample size bias, based on radiotelemetry and mark-release trapping 12.53 SD 2.43 - 53.49 ha Both Male and Female Both Adults and Juveniles Elkhorn Plain Ecological Reserve 15 Exposure Factor Datasets
Population Density 0.8 - 8.0 #/ha Both Male and Female Both Adults and Juveniles Elkhorn Plain Ecological Reserve Not Reported Exposure Factor Datasets

Sorex ornatus

Citation:

Activity rhythms in the shrews, Sorex sinuosus Grinnell and Sorex trowbridgii Baird

Author(s)
Rust, Aileen K.
Pages
369-382
Year
Volume
99
Exposure Endpoint Type Endpoint Value Error Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 6.23 0.76 SE g Both Male and Female Adult captured at San Pablo Bay, Sonoma CA 3 Exposure Factor Datasets
Body Weight - Mean 5.12 0.23 SE g Both Male and Female Adult captured at San Pablo Bay, Sonoma CA 5 Exposure Factor Datasets
Food Ingestion Rate 1.26 0.03 SE g/g/d Both Male and Female Adult captured at San Pablo Bay, Sonoma CA 3 Exposure Factor Datasets
Food Ingestion Rate 1.81 0.10 SE g/g/d Both Male and Female Adult captured at San Pablo Bay, Sonoma CA 5 Exposure Factor Datasets

Reithrodontomys raviventris

Citation:

The salt marsh harvest mouse (Reithrodontomys raviventris) and the Montezuma Power Plant site

Author(s)
Shellhammer, H.S.
Pages
27-32
Year
Volume
1979
Exposure Endpoint Type Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density 2.7 - 37.1 #/ha Not Reported Not Reported Collinsville 32 Exposure Factor Datasets
Citation:

A population study of the harvest mice (Reithrodontomys raviventris Dixon) in the Palo Alto Baylands Salt Marsh

Author(s)
Wondolleck, John T., William Zolan and Gary L. Stevens
Pages
52-64
Year
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 4 #/litter Female Adult Not Reported Exposure Factor Datasets
Duration of Incubation or Gestation 25 d Female Adult Not Reported Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 21 length of weaning period d Not Reported Juvenile Not Reported Exposure Factor Datasets
Population Density range for 4 habitat types 0.5 - 6.8 #/1000 m2 Not Reported Not Reported Palo Alto Baylands 3 - 128 animals/type Exposure Factor Datasets
Survival/ Mortality 2/19 2 out of 19 juveniles reached adult size survival ratio Not Reported Juvenile Palo Alto Baylands Not Reported Exposure Factor Datasets
Citation:

The ecology of the salt-marsh harvest mouse (Reithrodontomys raviventris) in a diked salt marsh

Author(s)
Geissel, Wolfgang, Howard Shellhammer and H. Thomas Harvey
Pages
696-703
Year
Volume
69
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Time of Mating/ Laying June - Sept. time when reproductively active Both Male and Female Adult New Chicago Marsh, San Francisco Bay National Wildlife Refuge 65 Exposure Factor Datasets
Home Range 1550 1100 - 2000 m2 Male Adult New Chicago Marsh, San Francisco Bay National Wildlife Refuge 4 Exposure Factor Datasets
Home Range 1300 1100 - 1500 m2 Female Adult New Chicago Marsh, San Francisco Bay National Wildlife Refuge 4 Exposure Factor Datasets

Empidonax traillii

Citation:

Effects of brood parasitism by brown-headed cowbirds on willow flycatcher nesting success along the Kern River, California

Author(s)
Harris, John H.
Pages
13-26
Year
Volume
22
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Fledging or Weaning Rate 16% Percent of nests that fledged young Not Reported Fledgling Kern River Preserve 19 nests Exposure Factor Datasets
Citation:

Ecology of a Sierra Nevada population of willow flycatchers

Author(s)
Flett, Mary Anne and Susan D. Sanders
Pages
37-42
Year
Volume
18
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Time of Migration or Dispersal early to mid-June timing of arrival of spring migrants Both Male and Female Adult Perazzo Meadows, Lacey Valley (32 km NW of Truckee) Not Reported Exposure Factor Datasets
Time of Mating/ Laying mid-June time by which first eggs laid Both Male and Female Adult Perazzo Meadows, Lacey Valley (32 km NW of Truckee) 11 nests Exposure Factor Datasets
Time of Hatching or Parturition June 30 time by which first eggs hatched Both Male and Female Adult Perazzo Meadows, Lacey Valley (32 km NW of Truckee) 11 nests Exposure Factor Datasets
Time of Fledging or Metamorphosis July 15-August 13 dates on which first and last young fledged Both Male and Female Adult Perazzo Meadows, Lacey Valley (32 km NW of Truckee) 11 nests Exposure Factor Datasets
Time of Migration or Dispersal August 31 date by which last fall migrants departed Both Male and Female Adult Perazzo Meadows, Lacey Valley (32 km NW of Truckee) Not Reported Exposure Factor Datasets
Fledging or Weaning Rate 1.3 average number of fledglings per nest 1.3 SD 0-3 or 4 fledglings/nest Not Reported Fledgling Perazzo Meadows, Lacey Valley (32 km NW of Truckee) 11 nests Exposure Factor Datasets

Empidonax traillii ssp. extimus

Citation:

Breeding ecology of a willow flycatcher population in Grand Canyon, Arizona

Author(s)
Brown, Bryan T.
Pages
25-33
Year
Volume
19
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density population density in a 360 km riparian corridor as indicated by song counts 2-11 singing males/yr Male Adult Colorado River, Grand Canyon National Park 6 sampling yrs Exposure Factor Datasets
Population Density population density in a 360 km riparian corridor as indicated by active nest counts 2-4 nests found/yr Both Male and Female Adult Colorado River, Grand Canyon National Park 6 sampling yrs Exposure Factor Datasets
Time of Nesting June 2-July 10 estimated length of breeding season (period when eggs or young are in the nest) Both Male and Female Adult Colorado River, Grand Canyon National Park 6 sampling yrs Exposure Factor Datasets
Citation:

Empidonax traillii extimus: An endangered subspecies

Author(s)
Unitt, Philip
Pages
137-162
Year
Volume
18
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Time of Nesting June 1 estimated beginning of nesting based on historic egg collections Both Male and Female Adult coastal southern CA; Colorado River; upper San Pedro River, AZ 187 dated egg sets Exposure Factor Datasets

Empidonax traillii ssp. brewsteri

Citation:

Empidonax traillii extimus: An endangered subspecies

Author(s)
Unitt, Philip
Pages
137-162
Year
Volume
18
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Type
Time of Migration or Dispersal May 15 date of earliest arrival of spring migrants Both Male and Female Not Reported Not Reported Exposure Factor Datasets
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