Merriam's Kangaroo Rat (Dipodomys merriami)

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Merriam's Kangaroo Rat (Dipodomys merriami)

Citation:

Effects of chemical smokes on flora and fauna under field and laboratory exposures

Author(s)
Schaeffer, D.J., Edward W. Novak, William R. Lower, Armon Yanders, Shubendar Kapila and Richard Wang
Pages
301-315
Year
Volume
13
Chemical Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
HEXACHLOROETHANE decrease mean chromosomal abberrations per cell, compared to controls (not exposed to obscurant smoke) Not Reported Not Reported 3-4/group Goldstone, Fort Irwin Toxicity Factor Datasets
HEXACHLOROETHANE no effect sister chromatid exchange counts, compared to controls Not Reported Not Reported 3-4/group Goldstone, Fort Irwin Toxicity Factor Datasets
Citation:

Effects of low OP dose on seed/bead discrimination in the kangaroo rat, Dipodomys

Author(s)
Peterle, T. J. and R. Bentley
Pages
95-100
Year
Volume
43
Chemical Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type Lab
METHYLPARATHION no effect discrimination between seeds and beads Both Male and Female Adult 22 animals Toxicity Factor Datasets Laboratory
METHYLPARATHION 18-19 % decrease brain cholinesterase activity, compared to control Both Male and Female Adult 2 animals Toxicity Factor Datasets Laboratory
METHYLPARATHION 97.1 mg/kg (95% CI, 42.6-178.6 mg/kg) LD50 Both Male and Female Adult 3-4 animals/group Toxicity Factor Datasets Laboratory
Citation:

Population Ecology of a desert rodent: Dipodomys merriami in the Chihuahuan Desert

Author(s)
Zeng, Zongyong and James H. Brown
Pages
1328-1340
Year
Issue
5
Volume
68
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Condition Error
Body Weight - Mean 49.9 g Male Adult Not Reported Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets pregnant 0.2
Home Range 44.1 mean distance moved from site of initial capture m Male Not Reported 443 Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Home Range 53.8 mean distance moved from site of initial capture m Female Not Reported 339 Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Longevity at least 36 oldest recorded mo Female Adult 3 Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Survival/ Mortality 0.304 death rate per yr /yr Male Not Reported 443 Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Survival/ Mortality 0.370 death rate per yr /yr Female Not Reported 354 Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Growth Rate see citation figure of logistic growth curve for changes in body weight over time Both Male and Female Both Adults and Juveniles Not Reported Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets 1 - 12 mo
Age at Fledging, Metamorphosis, Weaning < 1 mo Both Male and Female Juvenile Not Reported Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets
Clutch or Litter Size 2 estimated by palpation young/litter Female Adult Not Reported Cave Creek Bajada, Cochise County (elev., 1330 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 Error
Water Ingestion Rate 3.14 water influx rate estimated via doubly labeled water 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 1.33 SD
Metabolic Rate 2.00 field metabolic rate estimated from doubly labeled water 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 0.45 SD
Population Density 17.5 #/ha Not Reported Not Reported 5 Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] Exposure Factor Datasets San Bernardino 1.6 SD
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
Citation:

Consumption of primary production by a population of kangaroo rats (Dipodomys merriami) in the Mojave desert

Author(s)
Soholt, Lars F.
Pages
357-376
Year
Volume
43
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Fledging or Weaning Rate 42 estimated age at weaning d Not Reported Juvenile 104 Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Dietary Composition seeds (75%); leaves (20%); flowers (3%); stems (1%); arthropods (1%) % by weight of stomach contents % Not Reported Not Reported 172 Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Body Weight - Mean range of 4 seasonal means g Not Reported Not Reported 20-42/season Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Body Fat (total or %) range of 4 seasonal means of fat content (% live weight) % Not Reported Not Reported 20-42/season Indian Cove, Joshua Tree National Monument 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 Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Home Range 0.243 acres Both Male and Female Juvenile Not Reported Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) Exposure Factor Datasets
Population Density #/acre Both Male and Female Both Adults and Juveniles 9 winters Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) Exposure Factor Datasets
Food Ingestion Rate 12 body weight maintanance requirement based on a rolled barley diet % body weight/d Both Male and Female Not Reported 10 Exposure Factor Datasets Laboratory
Dietary Composition grass seeds (49%); forb seeds (33%); shrub seeds (12%); other vegetative parts (5%) % frequency of occurrence in pouch contents % Not Reported Not Reported 1001 pouches Santa Rita Experimental Range, Tucson (elev., 3000-4000 ft) Exposure Factor Datasets
Citation:

Energy relationships of the mammals of a desert shrub (Larrea tridentata) community

Author(s)
Chew, Robert M. and Alice Eastlake Chew
Pages
1-20
Year
Issue
1
Volume
40
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Age at Fledging, Metamorphosis, Weaning d Both Male and Female Juvenile Not Reported San Simon Valley, Portal (elev., 1370 m) Exposure Factor Datasets
Time of Hatching or Parturition Jan. - Mar. (begin); Apr. - May (peak); Aug. (end) Female Adult Not Reported San Simon Valley, Portal (elev., 1370 m) Exposure Factor Datasets
Population Density 11.47 #/ha Both Male and Female Both Adults and Juveniles Not Reported San Simon Valley, Portal (elev., 1370 m) Exposure Factor Datasets
Metabolic Rate OC = 5.32 - 0.134 T equation relating oxygen consumption (OC) to temperature (T, 29-35C) ml O2/g/hr Both Male and Female Adult 6/sampling period; 10 periods captured at San Simon Valley, AZ from Aug. - July Exposure Factor Datasets Laboratory
Home Range 62.0 average range of movement after 3 captures m Both Male and Female Adult Not Reported San Simon Valley Exposure Factor Datasets 4.7
Metabolic Rate maintenance energy expenditure estimated from oxygen consumption kcal/day Both Male and Female Adult 6/sampling period; 10 periods captured at San Simon Valley, AZ from Aug. - July Exposure Factor Datasets Laboratory
Body Weight - Mean g Male Adult Not Reported San Simon Valley Exposure Factor Datasets
Body Weight - Mean g Female Adult Not Reported San Simon Valley Exposure Factor Datasets
Growth Rate see citation figure of changes in weight over time Both Male and Female Juvenile 90 San Simon Valley, Portal (elev., 1370 m) Exposure Factor Datasets
Dietary Composition seeds (82%), herbs (14%), shrub (2%), arthropods (2%) % occurence of food items in cheek pouch contents % Not Reported Not Reported 15 San Simon Valley, Portal (elev., 1370 m) Exposure Factor Datasets
Citation:

Ecology of rodents in Indian Cove (Mojave Desert), Joshua Tree National Monument, California

Author(s)
Chew, Robert M. and Bernard B. Butterworth
Pages
203-225
Year
Volume
45
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Population Density range of monthly density estimates over 2 yrs #/ha Not Reported Not Reported Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets
Home Range 155 cumulative home range diameter for 6-8 mo period m Both Male and Female Not Reported 34 Indian Cove, Joshua Tree National Monument Exposure Factor Datasets
Body Weight - Mean see citation figure of seasonal changes in weight g Both Male and Female Both Adults and Juveniles Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets
Longevity longest recorded longevity mo Not Reported Adult 2 Indian Cove, Joshua Tree National Monument Exposure Factor Datasets
Citation:

Growth and development of Merriam's kangaroo rat, Dipodomys merriami

Author(s)
Chew, Robert M. and Bernard B. Butterworth
Pages
75-95
Year
Volume
23
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Lab
Body Weight - Mean 3.04 g Both Male and Female Neonate 9 litters captured at Indian Cove, Joshua Tree National Monument Exposure Factor Datasets at birth Laboratory
Growth Rate range in male and female % change in body weight per day following recapture during 4 trapping periods %/d Both Male and Female Adult Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets "subadult"
Citation:

Daily and seasonal patterns of activity and energetics in a heteromyid rodent commuinity

Author(s)
Kenagy, G. J.
Pages
1201-1219
Year
Issue
6
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Metabolic Rate 3.76 resting metabolism at 5 degrees C, without a natural nest cc O2/g/h Not Reported Not Reported 6 individuals Exposure Factor Datasets 0.11 SE Laboratory
Metabolic Rate 3.24 resting metabolism at 5 degrees C, in a natural nest cc O2/g/h Not Reported Not Reported 6 individuals Exposure Factor Datasets 0.12 SE Laboratory
Citation:

Consumption of herbaceaous vegetation and water during reproduction and development of Merriam's Kangaroo rat, Dipodomys merriami

Author(s)
Soholt, Lars F.
Pages
445-457
Year
Issue
2
Volume
98
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition Lab
Body Fat (total or %) see citation figure of seasonal changes in % body fat % Both Male and Female Not Reported Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Body Weight - Mean see citation figure of seasonal changes in weight g Both Male and Female Not Reported Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Food Ingestion Rate see citation figure of daily food intake g/d Female Adult 4-16 captured in Clark County, NV Exposure Factor Datasets non-reproductive, lactating or gestating Laboratory
Water Ingestion Rate 4.8 estimated from food intake (rolled oats and carrots) g/d Female Adult 16 captured in Clark County, NV Exposure Factor Datasets non-reproductive and gestating Laboratory
Water Ingestion Rate 10.7 estimated from food intake (rolled oats and carrots) g/d Female Adult 4-9 captured in Clark County, NV Exposure Factor Datasets lactating Laboratory
Clutch or Litter Size 2.8 young/litter Female Adult Not Reported captured in Clark County, NV Exposure Factor Datasets Laboratory
Citation:

A comparative study of growth and development of the kangaroo rats, Dipodomys deserti stephens and Dipodomys merriami mearns

Author(s)
Butterworth, Bernard B.
Pages
127-139
Year
Volume
25
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type Lab
Age at Fledging, Metamorphosis, Weaning d Not Reported Juvenile 4 litters adults captured at Alpine Butte, Los Angeles County, CA Exposure Factor Datasets Laboratory
Citation:

Notes on home ranges and population density of two species of heteromyid rodents in southwestern Texas

Author(s)
York, Christopher L.
Pages
42-46
Year
Volume
1
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Home Range 6.38 acres Male Adult 4 Presidio County Exposure Factor Datasets
Home Range 3.39 acres Female Adult 4 Presidio County Exposure Factor Datasets
Population Density 1 #/1.63 acres Male Adult Not Reported Presidio County Exposure Factor Datasets
Population Density 1 #/ 1.91 acres Female Adult Not Reported Presidio County Exposure Factor Datasets
Citation:

Repeatability of mammalian physiology: Evaporative water loss and oxygen consumption of Dipodomys merriami

Author(s)
Hayes, Jack P., Chad A. Bible and John D. Boone
Pages
475-485
Year
Volume
79
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Body Weight - Mean 36.7 g Not Reported Adult 30 Exposure Factor Datasets 3.7 SD Laboratory
Metabolic Rate 0.619 resting metabolic rate at 30C ml O2/min Not Reported Adult 30 Exposure Factor Datasets 0.099 SD Laboratory
Citation:

Breeding of captive kangaroo rats, Dipodomys merriami and D. microps

Author(s)
Daly, M., Margo I. Wilson and P. Behrends
Pages
338-341
Year
Issue
2
Volume
65
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 2.5 pups/litter Female Adult 51 captured near Palm Springs, CA Exposure Factor Datasets Laboratory
Duration of Incubation or Gestation 33 modal duration d Female Adult 65 captured near Palm Springs, CA Exposure Factor Datasets Laboratory
Age at Fledging, Metamorphosis, Weaning d Female Juvenile Not Reported Exposure Factor Datasets Laboratory
Age at Sexual Maturity 64 youngest age of female conceiving d Female Adult 51 Exposure Factor Datasets Laboratory
Citation:

The reproduction of heteromyid rodents in captivity

Author(s)
Eisenberg, John F. and Donald E. Isaac
Pages
61-67
Year
Volume
44
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 2.2 pups/litter Female Adult 4 litters Exposure Factor Datasets Laboratory
Age at Fledging, Metamorphosis, Weaning d Not Reported Juvenile 4 litters Exposure Factor Datasets Laboratory
Citation:

The relation of oxygen consumption to temperature in desert rodents

Author(s)
Dawson, William R.
Pages
543-552
Year
Volume
36
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Metabolic Rate 1.2 average oxygen consumption rate at 31-34C cc O2/g/hr Not Reported Not Reported 25 captured at Lovejoy Buttes, Los Angeles County, CA Exposure Factor Datasets Laboratory
Metabolic Rate OC = 3.57 + (-0.176)(T - 20.14) equation relating oxygen consumption (OC) to ambient temperature (T, 9-31C) cc O2/g/hr Not Reported Not Reported 25 captured at Lovejoy Buttes, Los Angeles County, CA Exposure Factor Datasets Laboratory
Citation:

Home range dynamics of rodents in a sagebrush community

Author(s)
O'Farrell, Michael J.
Pages
657-668
Year
Volume
59
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Home Range 0.49 annual composite home range estimated by principal component method (95% probability) ha Not Reported Not Reported 718 recapture loci Warm Springs Valley, Washoe County Exposure Factor Datasets
Citation:

Cheek pouch capacities and loading rates of heteromyid rodents

Author(s)
VanderWall, Stephen B., William S. Longland, Sanjay Pyare and Joseph A. Veech
Pages
21-28
Year
Volume
113
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error
Body Weight - Mean 37.4 g Both Male and Female Adult 13 Great Basin Desert, near Reno Exposure Factor Datasets 5.0 SD
Citation:

Aboveground activity of Merriam's kangaroo rats (Dipodomys merriami) in relation to sex and reproduction

Author(s)
Behrends, Philip, Martin Daly, Margo I. Wilson
Pages
210-226
Year
Issue
3-4
Volume
96
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean g Male Adult 10 Boyd Deep Canyon Reserve (elev., 300m) Exposure Factor Datasets Riverside
Citation:

Dispersal distance and the range of nightly movements in Merriam's kangaroo rats

Author(s)
Jones, Thomas W.
Pages
27-34
Year
Issue
1
Volume
70
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Home Range 61.5 median lifetime distance moved from home range center (from first to last capture) m Male Juvenile 16 Portal Exposure Factor Datasets
Home Range 50.0 median lifetime distance moved from home range center (from first to last capture) m Female Adult 16 Portal Exposure Factor Datasets
Home Range 7413 estimated via minimum convex polygon method m2 Male Adult 5 Portal Exposure Factor Datasets
Home Range 2644 estimated via minimum convex polygon method m2 Female Adult 4 Portal Exposure Factor Datasets
Age at Sexual Maturity 2 mo Not Reported Adult Not Reported Portal Exposure Factor Datasets
Citation:

Life history notes on Merriam's kangaroo rat in southern Arizona

Author(s)
Reynolds, Hudson G.
Pages
48-58
Year
Volume
41
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Lab
Growth Rate 4.0 (0); 10.0 (2 wks); 18.0 (4 wks); 24.0 (6 wks); 28.0 (8 wks); 31.0 (10 wks); 34.0 (12 wks); 36.0 (14 wks) body weights at various ages (0 - 14 wks) g Not Reported Juvenile 3 Exposure Factor Datasets 0 - 14 wks Laboratory
Body Weight - Mean range of seasonal body weights g Male Adult 644 Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) Exposure Factor Datasets
Clutch or Litter Size 2.02 embryos/female Female Adult 133 Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) Exposure Factor Datasets
Home Range 0.466 average range; estimated as enclosed space occupied by used traps plus one-half distance to closest unused trap acres Male Adult 11 Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) Exposure Factor Datasets
Home Range 0.373 average range; estimated as enclosed space occupied by used traps plus one-half distance to closest unused trap acres Female Adult 13 Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) Exposure Factor Datasets
Home Range 0.243 average range; estimated as enclosed space occupied by used traps plus one-half distance to closest unused trap acres Both Male and Female Juvenile 14 Santa Rita Experimental Range, Tucson (elev., 3000 - 4500 ft) Exposure Factor Datasets
Citation:

Organ weights and serum total cholesterol in the kangarooo rat (Dipodomys merriami)

Author(s)
Robinson, P.F., Henry J. Montoye, David B. Dill, Ling, Nan-Sing, Todor Kresteff
Pages
403-408
Year
Volume
31
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Body Weight - Mean 39.6 g Female Not Reported 11 captured at Boulder City, NV Exposure Factor Datasets 7.1 SD Laboratory
Body Weight - Mean 34.2 g Male Not Reported 16 captured at Boulder City, NV Exposure Factor Datasets 3.8 SD Laboratory
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 Error
Body Weight - Mean 32.6 g Female Adult 154 Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets Inyo 4.1 SD
Body Weight - Mean 3 g Not Reported Neonate Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets Inyo
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
Body Weight - Mean 36.2 g Male Adult 162 Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets Inyo 3.7 SD
Time of Hatching or Parturition Feb. - June Female Adult Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets Inyo
Citation:

Rodents of a creosote bush community in southern Nevada

Author(s)
Bradley, W. Glen and Roger A. Mauer
Pages
333-344
Year
Volume
17
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location 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 54 Las Vegas Valley, Clark County (elev., 2500 ft) Exposure Factor Datasets
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
Population Density 29 #/ha Both Male and Female Not Reported Not Reported Jacumba (elev., 988 m) Exposure Factor Datasets
Survival/ Mortality 85.1 average monthly survival %/mo Both Male and Female Not Reported 220 Jacumba (elev., 988 m) Exposure Factor Datasets
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:

Home range dynamics in a population of heteromyid rodents

Author(s)
Maza, B.G., N.R. French and A.P. Aschwanden
Pages
405-425
Year
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location 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 9 sampling periods U.S. Atomic Energy Commission, Nevada Test Site Exposure Factor Datasets
Citation:

Comparative population ecology of eleven species of rodents in the Chihuahuan Desert

Author(s)
Brown, J. H. and Z. Zeng
Pages
46-63
Year
Volume
47
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Population Density 7.93 mean density #/ha Both Male and Female Both Adults and Juveniles 968 Portal, Cochise County (elev. 1330 m) Exposure Factor Datasets
Body Weight - Mean 42.8 g Both Male and Female Both Adults and Juveniles 968 Portal, Cochise County (elev. 1330 m) Exposure Factor Datasets
Longevity 43 maximum longevity in the field mo Both Male and Female Adult 968 Portal, Cochise County (elev. 1330 m) Exposure Factor Datasets
Citation:

Reproduction and food habits of Merriam's kangaroo rat, Dipodomys merriami

Author(s)
Bradley, W. Glenn and Roger A. Mauer
Pages
497-507
Year
Issue
3
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.6 estimated by embryo counts pups /litter Female Adult 163 Las Vegas Valley, Clark County (elev., 2500 ft) Exposure Factor Datasets
Age at Sexual Maturity <2 age when reproductive activity observed mo Both Male and Female Adult 10 Las Vegas Valley, Clark County (elev., 2500 ft) Exposure Factor Datasets
Dietary Composition grass seeds (74.2%), annual forb seeds (37.4%), perennial seeds (7.4%), vegetative plant parts (7.4%), insect parts (0.3%), debris (2.7%), unidentified seeds (3%) % occurrence in cheek pouch contents % Not Reported Not Reported 411 Las Vegas Valley, Clark County (elev., 2500 ft) Exposure Factor Datasets
Citation:

Range use patterns and spatial relationships of Merriams's kangaroo rats (Dipodomys merriami)

Author(s)
Behrends, Philip, Martin Daly and Margo I. Wilson
Pages
187-209
Year
Volume
96
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range range of mean home range in 3 study periods estimated by radiotelemetry ha Female Adult 7-10 Boyde Deep Canyon Reserve (elev., 300m) Exposure Factor Datasets Riverside
Home Range range of mean home range in 3 study periods estimated by radiotelemetry ha Male Adult 8-11 Boyde Deep Canyon Reserve (elev., 300m) Exposure Factor Datasets Riverside
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