Rodents (Rodentia)

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California Ground Squirrel (Spermophilus beecheyi)

Citation:

A population study of the Beechey ground squirrel in central California

Author(s)
Evans, F. C. and R. Holdenried
Pages
231-260
Year
Issue
2
Volume
24
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density 7 #/acre Both Male and Female Both Adults and Juveniles Not Reported Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
Clutches or Litters per year 1 litters/yr Female Adult Not Reported Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
Clutch or Litter Size 6.25 young/litter Female Adult 8 litters Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
Citation:

California ground squirrels at Concord Naval Weapons station: alternatives for control and the ecological consequences

Author(s)
Loredo-Prenderville, I., D. Van Vuren , Amy J. Kuenzi, and Michael Morrison
Pages
72-77
Publisher
University of California, Davis
Year
Volume
16
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Population Density 32.0 #/ha Not Reported Adult 5 study sites Concord Naval Weapons Station Exposure Factor Datasets Contra Costa 16.23 SD
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 Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Body Weight - Mean 696 g Male Adult 10 Exposure Factor Datasets
Body Weight - Mean 592 g Female Adult 10 Exposure Factor Datasets
Population Density 76 #/acre Not Reported Not Reported 3 counts Walnut Creek Exposure Factor Datasets Contra Costa
Population Density 20 #/acre Not Reported Not Reported 3 counts Walnut Creek Exposure Factor Datasets Contra Costa
Clutches or Litters per year 1 litter/yr Female Adult Not Reported Exposure Factor Datasets
Clutch or Litter Size based on embryo counts young/litter Female Adult Not Reported Exposure Factor Datasets
Body Weight - Mean 61 g Not Reported Juvenile 1 Exposure Factor Datasets 10 d
Longevity 5 yrs Not Reported Adult Not Reported Exposure Factor Datasets
Citation:

Patterns of progesterone secretion in free-living California ground squirrels (Spermophilus beecheyi)

Author(s)
Holekamp, K.E., S. Nunes and F. Talamantes
Pages
1051-1059
Year
Issue
5
Volume
39
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Duration of Incubation or Gestation 28-30 d Female Adult 128 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
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
Time of Torpor or Hibernation May/June - Oct. months of estivation Male Adult 144 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
Time of Torpor or Hibernation July - Dec. months of estivation Female Adult 128 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
Citation:

Ventilatory accommodation of changing oxygen demand in sciurid rodents

Author(s)
Chappell, Mark A.
Pages
722-730
Year
Volume
162
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Body Weight - Mean 531 g Not Reported Not Reported 6 captured at University of California, Riverside Exposure Factor Datasets 75 Laboratory
Citation:

Energy metabolism and evaporative water loss in the California ground squirrel

Author(s)
Baudinette, Russel V.
Pages
57-72
Year
Volume
81
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean 599.6 g Not Reported Not Reported 10 University of California, Irvine Exposure Factor Datasets Orange
Citation:

Circulating prolactin in free-living california ground squirrels (Spermophilus beecheyi)

Author(s)
Holekamp, Kay E., Scott Nunes, and Frank Talamantes
Pages
484-492
Year
Volume
71
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Clutch or Litter Size 8.3 young/litter Female Adult 20 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz multiparous
Clutch or Litter Size 6.9 young/litter Female Adult 14 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz primiparous
Time of Molt April; June; July Not Reported Not Reported Not Reported University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
Citation:

Reproductive behaviour and multiple paternity of California ground squirrels

Author(s)
Boellstorff, Diane E., Donald H. Owings, Maria Cecilia T. Penedo and Marta J. Hersek
Pages
1057-1064
Year
Volume
47
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range over 2 yrs #/ha Both Male and Female Adult Not Reported Camp Ohlone, East Bay Regional Park District Exposure Factor Datasets Alameda
Time of Mating/ Laying Feb.-Mar. breeding Both Male and Female Adult Not Reported Camp Ohlone, East Bay Regional Park District Exposure Factor Datasets Alameda

California Vole (Microtus californicus)

Citation:

Ventilatory accommodation of changing oxygen demand in sciurid rodents

Author(s)
Chappell, Mark A.
Pages
722-730
Year
Volume
162
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Metabolic Rate 0.0251 (10C); 0.0179 (20C); 0.0114 (30C) mean minium metabolic rate estimated as oxygen consumption at ambient temperatures (10-30C) ml O2/g/min Not Reported Not Reported 6/group Exposure Factor Datasets Laboratory
Citation:

Supression of growth and reproduction of microtine rodents by social factors

Author(s)
Batzli, G. O., Lowell L. Getz, and Sarah S. Hurley
Pages
583-591
Year
Issue
4
Volume
58
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Age at Sexual Maturity 30 time when females became perforate and males became scrotal d Both Male and Female Adult Not Reported Exposure Factor Datasets Laboratory
Duration of Incubation or Gestation d Both Male and Female Embryo Not Reported Exposure Factor Datasets Laboratory
Growth Rate see citation figure of body weight at ages 20 - 180 d g/d Both Male and Female Both Adults and Juveniles Not Reported Exposure Factor Datasets Laboratory
Citation:

Intraspecific litter size variation in Microtus californicus: variation within populations

Author(s)
Krohne, David T.
Pages
29-40
Year
Issue
1
Volume
62
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size see citation figure of mean monthly litter sizes Female Adult 4-33/mo Orinda, Layfayette, Russell Reservation and Sea Ranch Exposure Factor Datasets Contra Costa, Sonoma
Citation:

Extra-large body size in California voles: causes and fitness consequences

Author(s)
Lidicker, William Z., and Richard S. Ostfield
Pages
108-121
Year
Volume
61
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Age at Sexual Maturity 17 d Female Adult Not Reported Brooks Island, San Francisco Bay Exposure Factor Datasets Contra Costa
Age at Sexual Maturity 25 d Male Adult Not Reported Brooks Island, San Francisco Bay Exposure Factor Datasets Contra Costa
Body Weight - Mean "typical" body weight g Male Adult Not Reported Brooks Island, San Francisco Bay Exposure Factor Datasets >25 d Contra Costa
Body Weight - Mean "extra large" body weight (12.6 % of population) g Male Adult 121 Brooks Island, San Francisco Bay Exposure Factor Datasets >25 d Contra Costa
Body Weight - Mean "extra large" body weight corrected for embryos (12.8 % of population) g Female Adult 123 Brooks Island, San Francisco Bay Exposure Factor Datasets >25 d Contra Costa
Citation:

Spatial structuring and dispersal in a high density population of the California vole Microtus californicus

Author(s)
Heske, Edward J.
Pages
137-148
Year
Volume
10
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Population Density #/ha Both Male and Female Both Adults and Juveniles Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa breeding
Body Weight - Mean > 45 g Male Adult Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa breeding
Body Weight - Mean > 40 g Female Adult Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa breeding
Home Range 103 estimated by minimum area polygon m2 Male Adult Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa breeding
Home Range 68 estimated by minimum area polygon m2 Female Adult Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa breeding
Citation:

Microhabitat heterogeneity and population ecology of an herbivorous rodent, Microtus califonicus

Author(s)
Cockburn, A., and W. Z. Lidicker, Jr.
Pages
167-177
Year
Volume
59
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Body Weight - Mean range of mean values for 4 grids over 3 yrs g Male Adult 1 - 20 Russell Reservation, Berkeley Exposure Factor Datasets Contra Costa breeding
Body Weight - Mean range of mean values for 4 grids over 3 yrs g Male Adult 1 - 23 Russell Reservation, Berkeley Exposure Factor Datasets Contra Costa non-breeding
Body Weight - Mean range of mean values for 4 grids over 3 yrs g Female Adult 1 - 42 Russell Reservation, Berkeley Exposure Factor Datasets Contra Costa breeding
Body Weight - Mean range of mean values for 4 grids over 3 yrs g Female Adult 1 - 24 Russell Reservation, Berkeley Exposure Factor Datasets Contra Costa non-breeding
Citation:

Social organization and space use in Califonia voles: seasonal, sexual, and age-specific strategies

Author(s)
Salvioni, M. and W. Z. Lidicker
Pages
426-438
Year
Volume
101
Exposure Endpoint Type Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range of low and high density yrs Both Male and Female Not Reported Not Reported Richmond Field Station Exposure Factor Datasets Contra Costa
Citation:

Nutritional ecology of the California vole: Effects of food quality on reproduction

Author(s)
Batzli, George O.
Pages
406-412
Year
Issue
2
Volume
67
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error Lab
Age at Fledging, Metamorphosis, Weaning 21 d Both Male and Female Juvenile 24 Exposure Factor Datasets Laboratory
Duration of Incubation or Gestation 3 wks Both Male and Female Adult 24 Exposure Factor Datasets subadult Laboratory
Clutches or Litters per year 0.5 litters per female per 12 wks litters/12 wks Female Adult 24 Exposure Factor Datasets subadult (4 weeks) 0.2 SE Laboratory
Clutch or Litter Size 3.7 young/litter Female Adult 24 Exposure Factor Datasets subadult (4 weeks) 0.2 SE Laboratory
Clutch or Litter Size 3.7 young/litter Female Adult 12 Exposure Factor Datasets 0.3 SE Laboratory
Clutches or Litters per year 1.9 litters per female per 12 wks litters/12 wks Female Adult 12 Exposure Factor Datasets adult 0.2 SE Laboratory
Body Fat (total or %) 0.45 g/g lean dry mass Both Male and Female Adult Not Reported Exposure Factor Datasets Laboratory
Citation:

Viability of large- and small- sized adults in fluctuating vole populations

Author(s)
Boonstra, Rudy and Charles J. Krebs
Pages
567-573
Year
Issue
3
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type Condition
Survival/ Mortality .574 minimum survival rate per 2 wks Male Adult 8 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Survival/ Mortality .635 minimum survival rate per 2 wks Male Adult 8 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Survival/ Mortality .739 minimum survival rate per 2 wks Female Adult 7 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Survival/ Mortality .766 minimum survival rate per 2 wks Female Adult 7 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Citation:

Intraspecific litter size variation in Microtus californicus II. variation between populations

Author(s)
Krohne, David T.
Pages
1174-1182
Year
Issue
6
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error Lab
Clutch or Litter Size 4.17 pups/litter Female Adult 220 captured in Sonoma County, CA Exposure Factor Datasets 0.2 SE Laboratory
Clutch or Litter Size 4.25 pups/litter Female Adult 65 captured in Contra Costa County, CA Exposure Factor Datasets 0.28 SE Laboratory
Clutch or Litter Size 3.45 inhabiting perennial grassland enclosure pups/litter Female Adult 20 captured in Sonoma County, CA Exposure Factor Datasets 0.32 SE Laboratory
Clutch or Litter Size 5.23 inhabiting annual grassland enclosure pups/litter Female Adult 42 captured in Contra Costa County, CA Exposure Factor Datasets 0.33 SE Laboratory
Body Weight - Mean 25.8 median weight at sexual maturity g Male Adult 33 Sea Ranch Exposure Factor Datasets Sonoma
Body Weight - Mean 20.4 median weight at sexual maturity g Female Adult 69 Orinda, Layfayette, Russell Reservation Exposure Factor Datasets Contra Costa
Body Weight - Mean 30.4 median weight at sexual maturity g Male Adult 56 Orinda, Layfayette, Russell Reservation Exposure Factor Datasets Contra Costa
Citation:

Condition and diet of cycling populations of the California Vole, Microtus californicus

Author(s)
Batzli, George O. and Frank A Pitelka
Pages
141-163
Year
Issue
1
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Error
Clutch or Litter Size 3.4 mean; early growing season pups/litter Female Adult 9 Richmond Field Station Exposure Factor Datasets Contra Costa 0.9 (95%CI)
Clutch or Litter Size 5.2 mean; height of growing season pups/litter Female Adult 13 Richmond Field Station Exposure Factor Datasets Contra Costa 0.8 (95%CI)
Clutch or Litter Size 3.6 mean; dry season pups/litter Female Adult 5 Richmond Field Station Exposure Factor Datasets Contra Costa 0.7 (95%CI)
Clutch or Litter Size 3.0 mean; early growing season pups/litter Female Adult 11 Russell Reservation Exposure Factor Datasets Contra Costa 0.8 (95%CI)
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)
Clutch or Litter Size 3.3 mean; dry season pups/litter Female Adult 6 Russell Reservation Exposure Factor Datasets Contra Costa 1.1 (95%CI)
Growth Rate change in body weight; instantaneous rate based on Brody 1945 %/d Both Male and Female Juvenile Not Reported Richmond field station; Russell Reservation Exposure Factor Datasets Contra Costa
Growth Rate change in body weight; instantaneous rate based on Brody 1945 %/d Both Male and Female Adult Not Reported Richmond field station; Russell Reservation Exposure Factor Datasets subadult Contra Costa
Growth Rate change in body weight; instantaneous rated based on Brody 1945 %/d Male Adult Not Reported Richmond field station; Russell Reservation Exposure Factor Datasets Contra Costa
Dietary Composition grass heads (1.3%); grass leaves (78.9%); grass stems (9.2%); grass roots (0.3%); Forb leaves (9.3%);
Forb stems (0.4%); Forb roots (0.1%); Vole hair (0.4%) 		composition of stomach contents % Not Reported Not Reported 750 items/15 voles Richmond Field Station Exposure Factor Datasets Contra Costa
Dietary Composition grass heads (72.6%); grass leaves (4.2%); grass stems (2.0%); grass roots (0.4%); Forb leaves (15.4%); Forb stems (2.6%); Forb roots (2.0%); vole hair (0.8%) composition of stomach contents % Not Reported Not Reported 500 items/10 voles Richmond Field Station Exposure Factor Datasets Contra Costa
Citation:

Territoriality and mating system of California voles

Author(s)
Ostfeld, Richard S.
Pages
691-706
Year
Volume
55
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Error
Population Density range in mean density for 2 yr #/ha Both Male and Female Adult Richmond Field Station Exposure Factor Datasets Contra Costa
Home Range range in home range (minimum area probability, 0.95) over 2 yrs m2 Female Adult 7/yr Richmond Field Station Exposure Factor Datasets Contra Costa
Home Range range in home range (minimum area probability, 0.95) over 2 yrs m2 Male Adult 4-7/yr Richmond Field Station Exposure Factor Datasets Contra Costa
Home Range 87.5 estimated by minimum area probability (0.95) method m2 Male Adult 2 Richmond Field Station Exposure Factor Datasets subadult Contra Costa 1.5 SE
Citation:

Analysis of two freely-growing enclosed populations of the California vole

Author(s)
Lidicker, William Z.
Pages
447-466
Year
Issue
3
Volume
60
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size pups/litter Female Adult 35 females Exposure Factor Datasets Laboratory
Body Weight - Mean range of means measured in voles in enclosures in different seasons g Male Adult 5-35/sample Exposure Factor Datasets Laboratory
Body Weight - Mean range of means measured in voles in enclosures in different seasons g Female Adult 5-45/sample Exposure Factor Datasets Laboratory
Citation:

Nutritional ecology of microtine rodents: digestibility of forage

Author(s)
Batzli, G. O., and F. Russell Cole
Pages
740-750
Year
Issue
4
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Sample Size Location Type Age-Specific Error Lab
Food Ingestion Rate 897 ingested energy; fed rabbit pellets for 21 d cal/g/d Not Reported 5 Exposure Factor Datasets 28 d or older 28 SE Laboratory
Food Ingestion Rate 1115 ingested energy; fed bromegrass for 21 d cal/g/d Not Reported 7 Exposure Factor Datasets 28 d or older 35 SE Laboratory
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
Metabolic Rate 450 metabolizable energy; equivalent to average daily metabolic rate cal/g/d Not Reported 5 Exposure Factor Datasets 28 d or older 16 SE Laboratory
Metabolic Rate 504 metabolizable energy; equivalent to average daily metabolic rate cal/g/d Not Reported 7 Exposure Factor Datasets 28 d or older 28 SE Laboratory
Metabolic Rate 485 metabolizable energy; equivalent to average daily metabolic rate cal/g/d Not Reported 8 Exposure Factor Datasets 28 d or older 16 SE Laboratory
Citation:

Selenium accumulation in mammals exposed to contaminated California irrigation drainwater

Author(s)
Clark Jr., Donald R.
Pages
147-168
Year
Volume
66
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 4.2 pups/litter Female Adult 12 Volta Exposure Factor Datasets Merced

San Joaquin Antelope Squirrel (Ammospermophilus nelsoni)

Citation:

Food and moisture requirements of the Nelson antelope ground squirrel

Author(s)
Hawbecker, Albert C.
Pages
115-125
Year
Volume
28
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition see citation figure of monthly % food types in stomach contents % Not Reported Adult Not Reported Los Banos (elev., 200-500') and Mendota (elev., 400-500') Exposure Factor Datasets Fresno, Merced
Citation:

Survival and home range in the Nelson antelope ground squirrel

Author(s)
Hawbecker, Albert C.
Pages
207-215
Year
Volume
3
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Longevity maximum observed age yr Not Reported Adult Not Reported Panoche (elev., 1200') Exposure Factor Datasets San Benito
Time of Hatching or Parturition Mar. Not Reported Neonate Not Reported Panoche (elev., 1200') Exposure Factor Datasets San Benito
Home Range 11 "normal" home range estimated as area enclosed by points of capture acres Not Reported Adult 240 squirrel trapped Panoche (elev., 1200') Exposure Factor Datasets San Benito

Little Pocket Mouse (Perognathus longimembris)

Citation:

Seasonal reproductive patterns in five coexisting California desert rodent species

Author(s)
Kenagy, G. J. and George A. Bartholomew
Pages
371-397
Year
Issue
4
Volume
55
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Body Weight - Mean 4 g Both Male and Female Juvenile Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets 4 wk Inyo
Duration of Incubation or Gestation 3 wk Female Adult Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets Inyo

Merriam's Kangaroo Rat (Dipodomys merriami)

Citation:

Seasonal reproductive patterns in five coexisting California desert rodent species

Author(s)
Kenagy, G. J. and George A. Bartholomew
Pages
371-397
Year
Issue
4
Volume
55
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Body Weight - Mean 17 g Both Male and Female Juvenile Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets 4 wk Inyo
Citation:

Comparative ecology of sympatric Dipodomys agilis and Dipodomys merriami in southern California

Author(s)
McClenaghan, Leroy R.
Pages
175-185
Year
Issue
14
Volume
29
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Longevity 8.3 mean length of life at study site mo Both Male and Female Not Reported Not Reported Jacumba (elev., 988 m) Exposure Factor Datasets
Citation:

Seasonal water and energy metabolism of the desert dwelling kangaroo rat (Dipodomys merriami)

Author(s)
Nagy, Kenneth A. and M.J. Gruchacz
Pages
1461-1478
Year
Issue
6
Volume
67
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Water Ingestion Rate log10(WI) = 0.652log10(BW) - 0.549 equation relating whole-animal water influx (WI) to body weight (BW, g); r^2 = 0.206 ml water/d 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
Metabolic Rate log10(L CO2/d) = 0.845log10(BW) - 1.005 field metabolic rate; equation relating whole animal carbon dioxide production rates to body weight (BW, g); r^2=0.466 L CO2/d 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
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
Citation:

The ecology of Merriam's kangaroo rat (Dipodomys merriami Mearns) on the grazing of lands of southern Arizona

Author(s)
Reynolds, Hudson G.
Pages
112-127
Year
Issue
2
Volume
28
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
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