Merriam's Kangaroo Rat (Dipodomys merriami)
Citation:
Author(s)
Behrends, Philip, Martin Daly and Margo I. Wilson
Year
Exposure Endpoint Type |
Endpoint Value |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
California Counties |
Population Density |
6 |
#/ha |
Both Male and Female |
Adult |
Not Reported |
Boyde Deep Canyon Reserve (elev., 300m) |
Exposure Factor Datasets |
Riverside |
Citation:
Author(s)
Kenagy, G. J. and George A. Bartholomew
Year
Exposure Endpoint Type |
Endpoint Value |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
California Counties |
Error |
Duration of Incubation or Gestation |
4 |
wk |
Female |
Adult |
Not Reported |
Owens Valley, Big Pine (lat., 37^o11'N) |
Exposure Factor Datasets |
Inyo |
|
Clutch or Litter Size |
2.46 |
pups/itter |
Female |
Adult |
Not Reported |
Owens Valley, Big Pine (lat., 37^o11'N) |
Exposure Factor Datasets |
Inyo |
0.72 SD |
Time of Torpor or Hibernation |
none |
|
Female |
Adult |
Not Reported |
Owens Valley, Big Pine (lat., 37^o11'N) |
Exposure Factor Datasets |
Inyo |
|
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 |
|
Age at Sexual Maturity |
1 |
yr |
Male |
Adult |
Not Reported |
Owens Valley, Big Pine (lat., 37^o11'N) |
Exposure Factor Datasets |
Inyo |
|
Citation:
Author(s)
Reynolds, Hudson G.
Year
Exposure Endpoint Type |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Body Weight - Mean |
range of seasonal body weights |
g |
Female |
Adult |
482 |
Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) |
Exposure Factor Datasets |
Citation:
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
California Counties |
Error |
Foraging Distance |
|
minimum distances moved by individuals on one trap night |
m |
Both Male and Female |
Not Reported |
5 males, 6 females |
Owens Valley (1,220 m) |
Exposure Factor Datasets |
Inyo |
|
Body Weight - Mean |
36 |
|
g |
Male |
Not Reported |
NR (74 males and females total) |
Owens Valley |
Exposure Factor Datasets |
Inyo |
0.22 SE |
Body Weight - Mean |
33 |
|
g |
Female |
Not Reported |
NR (74 males and females total) |
Owens Valley |
Exposure Factor Datasets |
Inyo |
0.32 SE |
Citation:
Author(s)
Hulbert, A.J. and Richard E. MacMillen
Year
Exposure Endpoint Type |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Lab |
Body Weight - Mean |
range of means of initial weights for 3 experimental groups |
g |
Not Reported |
Not Reported |
9/group |
captured at Joshua Tree, San Bernadino County, CA |
Exposure Factor Datasets |
Laboratory |
Citation:
Author(s)
Jones, Thomas W.
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Longevity |
2 |
|
yrs |
Not Reported |
Adult |
Not Reported |
Portal |
Exposure Factor Datasets |
Home Range |
46.5 |
median lifetime distance moved from home range center (from first to last capture) |
m |
Male |
Adult |
36 |
Portal |
Exposure Factor Datasets |
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 |
Citation:
Author(s)
Hulbert, A.J., D.S. Hinds and R.E. MacMillen
Year
Exposure Endpoint Type |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Lab |
Body Weight - Mean |
|
g |
Not Reported |
Not Reported |
Not Reported |
captured in San Bernadino and Riverside Counties, CA |
Exposure Factor Datasets |
Laboratory |
Metabolic Rate |
range of mean "minimal metabolism" estimated as oxygen consumption at 32C |
ml O2/g/h |
Not Reported |
Not Reported |
8 |
captured in San Bernadino and Riverside Counties, CA |
Exposure Factor Datasets |
Laboratory |
Citation:
Author(s)
Nagy, Kenneth A. and M.J. Gruchacz
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
California Counties |
Error |
Dietary Composition |
seed (77%); vegetation (18%); arthropod (4.5%); feces (0.5%) |
% of total dry matter of stomach contents |
% |
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 |
|
Body Weight - Mean |
33.9 |
|
g |
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 |
2.2 SD |
Citation:
Author(s)
Bradley, W. Glenn and Roger A. Mauer
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Clutches or Litters per year |
|
|
litters/yr |
Female |
Adult |
Not Reported |
Las Vegas Valley, Clark County (elev., 2500 ft) |
Exposure Factor Datasets |
Body Weight - Mean |
see citation |
figure of seasonal changes in mean body weight |
g |
Both Male and Female |
Adult |
2-96/mo |
Las Vegas Valley, Clark County (elev., 2500 ft) |
Exposure Factor Datasets |
Citation:
Author(s)
Mullen, Robert K.
Year
Exposure Endpoint Type |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Metabolic Rate |
range of mean monthly carbon dioxide production rates in the field |
ml CO2/g/hr |
Not Reported |
Adult |
1 - 5/mo |
Rock Valley |
Exposure Factor Datasets |
Metabolic Rate |
range of monthly estimated energy expenditures in the field |
kcal/g/d |
Not Reported |
Adult |
1 - 5/mo |
Rock Valley |
Exposure Factor Datasets |
Citation:
Author(s)
Zeng, Zongyong and James H. Brown
Year
Exposure Endpoint Type |
Endpoint Value |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Condition |
Error |
Population Density |
7.8 |
#/ha |
Both Male and Female |
Not Reported |
782 |
Cave Creek Bajada, Cochise County (elev., 1330 m) |
Exposure Factor Datasets |
|
|
Body Weight - Mean |
44.0 |
g |
Male |
Adult |
443 |
Cave Creek Bajada, Cochise County (elev., 1330 m) |
Exposure Factor Datasets |
|
0.3 |
Body Weight - Mean |
41.1 |
g |
Female |
Adult |
Not Reported |
Cave Creek Bajada, Cochise County (elev., 1330 m) |
Exposure Factor Datasets |
non-breeding |
0.1 |
Citation:
Author(s)
Reynolds, Hudson G.
Year
Exposure Endpoint Type |
Endpoint Value |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Clutch or Litter Size |
2.02 |
embryos/female |
Female |
Adult |
Not Reported |
Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) |
Exposure Factor Datasets |
Home Range |
0.466 |
acres |
Male |
Adult |
Not Reported |
Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) |
Exposure Factor Datasets |
Home Range |
0.373 |
acres |
Female |
Adult |
Not Reported |
Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) |
Exposure Factor Datasets |
Citation:
Author(s)
Soholt, Lars F.
Year
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 |
Clutch or Litter Size |
2.2 |
embryos/ female |
Female |
Adult |
24 |
Indian Cove, Joshua Tree National Monument |
Exposure Factor Datasets |
San Bernardino |
Citation:
Author(s)
Butterworth, Bernard B.
Year
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 |
Growth Rate |
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 |
Citation:
Author(s)
Chew, Robert M. and Bernard B. Butterworth
Year
Exposure Endpoint Type |
Endpoint Value |
Endpoint Description |
Units |
Sex |
Life Cycle Stage |
Sample Size |
Location |
Type |
Age-Specific |
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 |
Body Weight - Mean |
see citation |
figure of body weight at ages 0 - 162 d |
g |
Both Male and Female |
Both Adults and Juveniles |
34 |
captured at Indian Cove, Joshua Tree National Monument |
Exposure Factor Datasets |
0 - 162 d |
Laboratory |
Citation:
Year
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 |
Time of Molt |
July and August |
Not Reported |
Not Reported |
Not Reported |
Owens Valley |
Exposure Factor Datasets |
Inyo |
Comment