Species
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Citation:
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Dietary Composition |
Erodium cicutarium leaf (19.4%) and seed (18.8%); Schismus barbatus non-seed (15.3%) and seed (2.8%); unidentified grass (14.1%); Bromus madritensis (7.1%); insect (8.1%); Hirschfeldia incana seed (4.7%); Eriogonom fasciculatum seed (3.5%); Salsola tragus seed (3.4%); Amsinckia menziesii seed (2.4%); Artemesia californica seed (0.9%) |
annual % frequency of occurrence in fecal pellets |
% |
Not Reported |
Not Reported |
Mottee Rimrock Reserve and San Jacinto Wildlife Area |
5-10 pellets/mo |
Exposure Factor Datasets |
Citation:
Author(s)
Price, Mary V. and Patrick A. Kelly
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Range |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Growth Rate |
19.00 (20-29g); 8.82 (30-39g); 8.80 (40-49g); 0.94 (60-69g) |
mass specific growth rates pooled by sex and site expressed as change in body mass per mo for 4 weight classes (20-69g) |
|
g/mo |
Both Male and Female |
Not Reported |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
1-125/site and sex |
Exposure Factor Datasets |
Age at Sexual Maturity |
3 |
|
|
mo |
Female |
Adult |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
Not Reported |
Exposure Factor Datasets |
Population Density |
see citation |
figure of monthly population densities at two sites |
|
#/ha |
Both Male and Female |
Not Reported |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
Not Reported |
Exposure Factor Datasets |
Clutches or Litters per year |
|
range over 2 yrs |
1.50 - 1.93 |
litters/yr |
Female |
Adult |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
8-14/yr |
Exposure Factor Datasets |
Clutch or Litter Size |
2.67 |
|
|
young/litter |
Female |
Adult |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
6 |
Exposure Factor Datasets |
Longevity |
19 |
maximum time of persistence at site |
|
mo |
Both Male and Female |
Adult |
Motte Rimrock Reserve and San Jacinto Wildlife Area |
Not Reported |
Exposure Factor Datasets |
Citation:
Author(s)
Price, M.V. and P.R. Endo
Year
Exposure Endpoint Type |
Endpoint Description |
Range |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Population Density |
range of densities estimated over 2 yrs |
4.9 - 5.2 |
#/ha |
Not Reported |
Not Reported |
San Jacinto Wildlife Refuge |
320 - 640 trap nights |
Exposure Factor Datasets |
Citation:
Author(s)
Price, Mary V., William S. Longland and Ross L. Goldingay
Year
Exposure Endpoint Type |
Endpoint Value |
Range |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Body Weight - Mean |
62.2 |
45 - 73 |
g |
Not Reported |
Not Reported |
40 |
Exposure Factor Datasets |
Citation:
Author(s)
O'Farrell, Michael J. and Curt Uptain
Publisher
California Department of Fish and Game, Nongame Bird and Mammal Section
Year
Exposure Endpoint Type |
Range |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Population Density |
< 1 - >10 |
#/ha |
Not Reported |
Not Reported |
Not Reported |
Exposure Factor Datasets |
Citation:
Year
Exposure Endpoint Type |
Endpoint Description |
Range |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Longevity |
lifespan in captivity |
4 - 7 |
yrs |
Both Male and Female |
Adult |
captured in San Diego County |
2 |
Exposure Factor Datasets |
Citation:
Author(s)
Bradley, W. Glen and Roger A. Mauer
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Dietary Composition |
Grasses: Oryzopsis hymenoides (27.7%); Hilaria rigida (6.6%); Bromus rubens (8.5%); Annual forbs: Plantago insularis (12.3%); Phacelia spp. (4.5%); Perrenial shrubs: Ephedra funera (9.8%); Sphaeralcea ambigua (11.3%); Dalea fremontii (7.3%); Vegetative plant parts: Phacelia spp. (3.5%); Misc. (4.5%) |
% volume in cheek pouches of major (>2%) food items |
Not Reported |
Not Reported |
Las Vegas Valley, Clark County (elev., 2500 ft) |
27 |
Exposure Factor Datasets |
Citation:
Author(s)
Chew, Robert M., Robert G. Lindberg and Page Hayden
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
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 |
Citation:
Author(s)
Cramer, Kenneth L. and Joseph A. Chapman
Year
Exposure Endpoint Type |
Endpoint Value |
Error |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Clutch or Litter Size |
5.78 |
0.22 |
embryos/litter |
Female |
Adult |
Floating Island, Tooele County (elev., 1300-1420 m) |
9 |
Exposure Factor Datasets |
Citation:
Author(s)
Edmonds, Vaughan W. and Daniel S. Fertig
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Longevity |
> 8 |
lifespan in captivity |
yrs |
Not Reported |
Adult |
captured in Kern County, CA |
1 |
Exposure Factor Datasets |
Citation:
Author(s)
Hayden, P. and R.G. Lindberg
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Longevity |
8.3 |
maximum lifespan in captivity |
yrs |
Both Male and Female |
Adult |
216 |
Exposure Factor Datasets |
Citation:
Author(s)
Hayden, P. and J.J. Gambino
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Age at Fledging, Metamorphosis, Weaning |
18 |
|
d |
Not Reported |
Juvenile |
26 |
Exposure Factor Datasets |
Growth Rate |
see citation |
figure of body weight at various ages (0 - 60 d) with calculated instantaneous growth rates |
g |
Not Reported |
Juvenile |
26 |
Exposure Factor Datasets |
Body Weight - Mean |
1.3 |
weight at birth |
g |
Not Reported |
Neonate |
26 |
Exposure Factor Datasets |
Citation:
Author(s)
Maza, B.G., N.R. French and A.P. Aschwanden
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Home Range |
19.0 |
home range expressed as "sigma" (radius within which the probability of an animal being present is 39%) |
m |
Both Male and Female |
Not Reported |
U.S. Atomic Energy Commission, Nevada Test Site |
4 sampling periods |
Exposure Factor Datasets |
Citation:
Author(s)
Meserve, Peter L.
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Dietary Composition |
see citation |
monthly % volume of food items (detailed species-specific list) in feces |
% |
Both Male and Female |
Not Reported |
Irvine Ranch |
3 - 26/mo |
Exposure Factor Datasets |
Citation:
Author(s)
Bradley, W. Glen and Roger A. Mauer
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Dietary Composition |
Grasses: Oryzopsis hymenoides (18.0%); Hilaria rigida (13.7%); Tridens pulchella (3.3%); Bromus rubens (4.7%); Annual forbs: Plantago insularis (16.6%); Eriogonum spp. (14.3%); Phacelia spp. (6.8%); Vegetative plant parts: Phacelia spp. (6.0%); Erodium circutarium (3.2%); Misc. (8.4%) |
% volume in cheek pouches of major (>2%) food items |
% |
Not Reported |
Not Reported |
Las Vegas Valley, Clark County (elev., 2500 ft) |
54 |
Exposure Factor Datasets |
Citation:
Author(s)
Maza, B.G., N.R. French and A.P. Aschwanden
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Home Range |
37.3 |
home range expressed as "sigma" (radius within which the probability of an animal being present is 39%) |
m |
Both Male and Female |
Not Reported |
U.S. Atomic Energy Commission, Nevada Test Site |
9 sampling periods |
Exposure Factor Datasets |
Citation:
Author(s)
Meserve, Peter L.
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Dietary Composition |
see citation |
monthly % volume of food items (detailed species-specific list) in feces |
% |
Both Male and Female |
Not Reported |
Irvine Ranch |
15-47/mo |
Exposure Factor Datasets |
Citation:
Author(s)
United States Fish and Wildlife Service
Publisher
U.S. Fish and Wildlife Service, Carlsbad Field Office
Year
Exposure Endpoint Type |
Endpoint Value |
Sex |
Life Cycle Stage |
Sample Size |
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 |
Citation:
Author(s)
Antonelis, George A. and Clifford H. Fiscus
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Time of Mating/ Laying |
May - June |
breeding |
Both Male and Female |
Adult |
Not Reported |
Exposure Factor Datasets |
Citation:
Author(s)
Greenwood, Raymond J. and Alan B. Sargeant
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Error |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Clutch or Litter Size |
7.2 |
live embryo counts |
0.4 SE |
pups/litter |
Female |
Adult |
east-central North Dakota; west -central Minnesota |
178 females |
Exposure Factor Datasets |
Citation:
Author(s)
Wade-Smith, Julia and Milo E. Richmond
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Range |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Type |
Time of Mating/ Laying |
mid-February-mid April |
|
|
|
Both Male and Female |
Adult |
25-200 animals |
Exposure Factor Datasets |
Duration of Incubation or Gestation |
|
|
59-77 |
days |
Both Male and Female |
Embryo |
59 females |
Exposure Factor Datasets |
Time of Hatching or Parturition |
May-early June |
|
|
|
Both Male and Female |
Neonate |
118 females |
Exposure Factor Datasets |
Clutch or Litter Size |
4.28 |
|
1-10 |
pups/litter |
Female |
Adult |
118 litters |
Exposure Factor Datasets |
Duration of Incubation or Gestation |
61.5 |
second estrus |
59-65 |
d |
Both Male and Female |
Embryo |
4 females |
Exposure Factor Datasets |
Time of Mating/ Laying |
second half of May |
second estrus |
|
|
Both Male and Female |
Adult |
4 females |
Exposure Factor Datasets |
Time of Hatching or Parturition |
second half of July |
second estrus |
|
|
Both Male and Female |
|
4 females |
Exposure Factor Datasets |
Citation:
Author(s)
Bjorge, Ronald R., John R. Gunson and William M. Samuel
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Error |
Range |
Units |
Sex |
Life Cycle Stage |
Location |
Sample Size |
Type |
Clutch or Litter Size |
|
range of mean litter sizes for two years |
|
2.5 (0.4SE) - 5.2 (0.8 SE) |
pups/litter |
Female |
Adult |
Tofield 15 deg.N,112 deg. W east central Alberta |
15 litters |
Exposure Factor Datasets |
Population Density |
|
|
|
0.7-1.2 |
animals/km2 |
Not Reported |
|
Tofield 15 deg.N,112 deg. W east central Alberta |
Not Reported |
Exposure Factor Datasets |
Home Range |
2556 |
home range, as indexed by greatest distance between captures |
231SE |
1200-4050 |
m |
Male |
Adult |
Tofield 15 deg.N,112 deg. W east central Alberta |
17 |
Exposure Factor Datasets |
Home Range |
1970 |
home range, as indexed by greatest distance between captures |
170 SE |
700-4200 |
m |
Female |
Adult |
Tofield 15 deg.N,112 deg. W east central Alberta |
30 females |
Exposure Factor Datasets |
Home Range |
3310 |
home range, as indexed by greatest distance between captures |
410 SE |
850-10100 |
m |
Male |
Juvenile |
Tofield 15 deg.N,112 deg. W east central Alberta |
29 juveniles |
Exposure Factor Datasets |
Comment