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California Leaf-Nosed Bat (Macrotus californicus)

Citation:

The roles of energetics, water economy, foraging behavior, and geothermal refugia in the distribution of the bat, Macrotus californicus.

Author(s)
Bell, G.P., Bartholomew, G.A. and Nagy, K.A.
Issue
3
Volume
156
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Sample Size Location Type California Counties Countries Error
Food Ingestion Rate 3.83 Req for weight maint. g/d B NR Colorado Desert Exposure Factor Datasets Riverside USA
Food Ingestion Rate 29.4 Req for weight maint. % body mass B NR Colorado Desert Exposure Factor Datasets Riverside USA
Food Ingestion Rate 1.15 Req for weight maint. g dry mass/d B NR Colorado Desert Exposure Factor Datasets Riverside USA
Body Weight - Mean 12.9 g B 20 Colorado Desert Exposure Factor Datasets Riverside USA 0.2
Body Weight - Mean g M 5 Colorado Desert Exposure Factor Datasets Riverside USA
Body Weight - Mean g F 15 Colorado Desert Exposure Factor Datasets Riverside USA
Metabolic Rate 2.78 Field metabolic rate mL CO2/g/hr B 16 Colorado Desert Exposure Factor Datasets Riverside USA 0.15
Metabolic Rate Field metabolic rate mL CO2/g/hr F 12 Colorado Desert Exposure Factor Datasets Riverside USA
Metabolic Rate Field metabolic rate mL CO2/g/hr M 4 Colorado Desert Exposure Factor Datasets Riverside USA
Water Ingestion Rate 191 Water influx mL/kg/d B 20 Colorado Desert Exposure Factor Datasets Riverside USA 17
Water Ingestion Rate Water influx mL/kg/d F 15 Colorado Desert Exposure Factor Datasets Riverside USA
Water Ingestion Rate Water influx mL/kg/d M 5 Colorado Desert Exposure Factor Datasets Riverside USA
Water Ingestion Rate 221 Water efflux mL/kg/d B 20 Colorado Desert Exposure Factor Datasets Riverside USA 13
Water Ingestion Rate Water efflux mL/kg/d F 15 Colorado Desert Exposure Factor Datasets Riverside USA
Water Ingestion Rate Water efflux mL/kg/d M 5 Colorado Desert Exposure Factor Datasets Riverside USA
Food Ingestion Rate Tot energy intake: 28.8, metabolizable: 23.6 Req for weight maint. kJ/day B NR Colorado Desert Exposure Factor Datasets Riverside USA

California Whipsnake (Masticophis lateralis)

Citation:

Masticophis-lateralis California striped racer food

Author(s)
Cornett, J.W.
Issue
3
Volume
13
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Countries
Dietary Composition Subadult Sceloporus orcutti lizard Instance of predation NR Not Reported 1 Idyllwild County Park Exposure Factor Datasets Riverside USA

Desert Slender Salamander (Batrachoseps aridus)

Citation:

A new species of Batrachoseps (slender salamander) from the desert of southern California.

Author(s)
Brame, A.H.
Volume
200
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Countries
Body length 37.4 Total length mm B Adult 14 Hidden Palm Canyon Exposure Factor Datasets Riverside USA
Body length 48.4 Snout-vent length mm F Adult 1 Hidden Palm Canyon Exposure Factor Datasets Riverside USA
Body length 45.8 Snout-vent length mm F Adult 1 Hidden Palm Canyon Exposure Factor Datasets Riverside USA

Kit Fox (Vulpes macrotis)

Citation:

Desert kit fox (Vulpes macrotis arsipus) reproductive parameters—Upper Chuckwalla Valley, California.

Author(s)
Randel III, C.J.
Issue
1
Volume
41
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Countries Error
Clutch or Litter Size 2.69 Pups/litter B Pup 32 Upper Chuckwalla Valley Exposure Factor Datasets Riverside USA 0.3
Citation:

Desert kit fox (Vulpes macrotis arsipus) survival, Southeastern California.

Author(s)
Randel III, C.J. and Silvy, N.J.
Issue
1
Volume
41
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Countries Error
Survival/ Mortality 80 Mortality % B 56 Upper Chuckwalla Valley Exposure Factor Datasets Riverside USA
Survival/ Mortality 2012-2013: pair formation: 0.868, pup-rearing: 0.944, dispersal: 1.000, annual: 0.752; 2013-2014: pair formation: 0.891, pup-rearing: 1.000, annual: 0.892 Survival M Adult 56 Upper Chuckwalla Valley Exposure Factor Datasets Riverside USA 2012-2013: pair formation: 0.014, pup-rearing: 0.0.14, dispersal: 0.000, annual: 0.010; 2013-2014: pair formation: 0.023, pup-rearing: 0.000, annual: 0.017
Survival/ Mortality 2012-2013: pair formation: 0.885, pup-rearing: 0.1.000, dispersal: 1.000, annual: 0.885; 2013-2014: pair formation: 0.836, pup-rearing: 0.923, annual: 0.772 Survival F Adult 56 Upper Chuckwalla Valley Exposure Factor Datasets Riverside USA 2012-2013: pair formation: 0.0.033, pup-rearing: 0.000, dispersal: 0.0000, annual: 0.012; 2013-2014: pair formation: 0.0.028, pup-rearing: 0.019, annual: 0.022
Survival/ Mortality 2012-2013: pair formation: 0.876, pup-rearing: 0..969, dispersal: 1.000, annual: 0.809; 2013-2014: pair formation: 0.864, pup-rearing: 0.9640, annual: 0.833 Survival B Adult 56 Upper Chuckwalla Valley Exposure Factor Datasets Riverside USA 2012-2013: pair formation: 0.019, pup-rearing: 0.001, dispersal: 0.000, annual: 0.012; 2013-2014: pair formation: 0.019, pup-rearing: 0.011, annual: 0.014

Coachella Valley Fringe-toed Lizard (Uma inornata)

Citation:

Population dynamics of a threatened sand dune lizard.

Author(s)
Barrows, C.W.
Issue
4
Volume
51
Exposure Endpoint Type Endpoint Value Endpoint Description Life Cycle Stage Location Type California Counties Countries
Dietary Composition See citation Not Reported Thousand Palms Preserve Exposure Factor Datasets Riverside USA
Population Density See citation Population growth, r Not Reported Thousand Palms Preserve Exposure Factor Datasets Riverside USA
Citation:

Is the Coachella Valley fringe-toed lizard (Uma inornata) on the edge of extinction at Thousand Palms Preserve in California?

Author(s)
Chen, X., Barrows, C.W. and Li, B.L.
Issue
1
Volume
51
Exposure Endpoint Type Endpoint Value Endpoint Description Life Cycle Stage Location Type California Counties Countries
Population Density See citation Mean hatchlings/ha Hatchling Thousand Palms Preserve Exposure Factor Datasets Riverside USA
Citation:

Foraging ecology of the fringe-toed lizard, Uma inornata, during periods of high and low food abundance

Author(s)
Durtsche, Richard D.
Pages
915-926
Year
Issue
4
Volume
1995
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Overall Total (2779); Arthropod Total (658); Vertebrate Total (2); Plant Total (2113): Includes; Insects, Coleoptera (49); Hemiptera (27); Homoptera (503); Hymenoptera (59); Lepidoptera (10); Neuroptera (2); Orthoptera (13); Lizards, Phrynosomatidae (2); Plants, Asteraceae (70); Boraginaceae (3); Euphorbiaceae (6); Fabaceae (107) and Loasaceae (1927) total numbers of food items found in stomach contents # Male Adult 23 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside
Dietary Composition Overall Total (629); Arthropod Total (201); Vertebrate Total (1); Plant Total (332): Includes; Insects, Coleoptera (28); Diptera (5); Hemiptera (25); Homoptera (177); Hymenoptera (48); Lepidoptera (3); Orthoptera (4); Snakes, Crotalidae (1); Plants, Asteraceae (42); Boraginaceae (8); Fabaceae (71) and Loasaceae (211) total numbers of food items found in stomach contents # Female Adult 13 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside
Dietary Composition Overall Total (673); Arthropod Total (268); Vertebrate Total (2); Plant Total (360): Includes; Insects, Coleoptera (12); Diptera (1); Hemiptera (16); Homoptera (10); Hymenoptera (259); Lepidoptera (1); Neuroptera (3); Orthoptera (1); Lizards, Phrynosomatidae (1); Snakes, Crotalidae (1); Plants, Asteraceae (107); Boraginaceae (99); Euphorbiaceae (2); Fabaceae (33) and Loasaceae (119) total numbers of food items found in stomach contents # Male Adult 17 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside
Dietary Composition Overall Total (837); Arthropod Total (383); Vertebrate Total (1); Plant Total (277): Includes; Insects, Coleoptera (8); Diptera (2); Hemiptera (34); Homoptera (45); Hymenoptera (461); Neuroptera (1); Lizards, Phrynosomatidae (2); Plants, Asteraceae (85); Boraginaceae (65); Loasaceae (128) total numbers of food items found in stomach contents # Female Adult 17 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside
Citation:

Feeding time strategies of the fringe-toed lizard, Uma inornata during breeding and non-breeding seasons

Author(s)
Durtsche, Richard D.
Pages
85-89
Year
Issue
1
Volume
89
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Torpor or Hibernation Oct. - Mar. Not Reported Not Reported Not Reported Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside
Citation:

Reproduction in the sand-dwelling lizard Uma inornata

Author(s)
Mayhew, Wilbur W.
Pages
39-55
Year
Issue
1
Volume
21
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 2.8 eggs/clutch Female Adult 61 Coachella Valley Exposure Factor Datasets Riverside
Time of Mating/ Laying Apr. - Aug. time of breeding Both Male and Female Adult Not Reported Coachella Valley Exposure Factor Datasets Riverside
Citation:

Effects of reduction in windblown sand on the abundance of the fringe-toed lizard (Uma inornata) in the Coachella Valley, California

Author(s)
Turner, Frederick B., Donald C. Weaver and James C. Rorabaugh
Pages
370-378
Year
Issue
2
Volume
1984
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density #/ha Not Reported Not Reported 0-43 animals/10 plots (2.25 ha) Palm Springs, Indio Exposure Factor Datasets Riverside
Citation:

Home range dynamics of the Coachella Valley fringe-toed lizard

Author(s)
Horchar, Victor M.
Pages
61
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Home Range 1070 average home range estimated using minimum convex polygon method (snout-vent length, 80+mm) m2 Male Adult 25 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside 228 (95CI)
Home Range 270 average home range estimated using minimum convex polygon method (snout-vent length, 51-79mm) m2 Male Juvenile 20 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside 58 (95CI)
Home Range 90 average home range estimated using minimum convex polygon method (snout-vent length, 0-50mm) m2 Male Hatchling 9 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside 58 (95CI)

Desert Tortoise (Gopherus agassizi)

Citation:

Climatic variation affects clutch phenology in Agassiz’s desert tortoise Gopherus agassizii.

Author(s)
Lovich, J., Agha, M., Meulblok, M., Meyer, K., Ennen, J., Loughran, C., Madrak, S. and Bjurlin, C.
Issue
1
Volume
19
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Type California Counties Condition Countries
Time of Mating/ Laying See citation Figure 2 Clutch phenology F Adult Mesa wind farm near Palm Springs, CA Exposure Factor Datasets Riverside Gravid USA
Citation:

Aspects of the ecology of the desert tortoise, Gopherus agassizi, in Joshua Tree National Monument, Pinto Basin, Riverside County, California

Author(s)
Barrow, John
Pages
105-131
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density #/mi2 Both Male and Female Both Adults and Juveniles Not Reported South West Pinto Basin, Joshua Tree National Monument Exposure Factor Datasets Riverside
Body Weight - Mean maximum carapace length range = 161 - 243 mm kg Female Adult 18 South West Pinto Basin, Joshua Tree National Monument Exposure Factor Datasets Riverside
Body Weight - Mean maximum carapace length range = 169-279 mm kg Male Adult 19 South West Pinto Basin, Joshua Tree National Monument Exposure Factor Datasets Riverside
Body Weight - Mean maximum carapace length range = 60 - 145 mm kg Not Reported Juvenile 9 South West Pinto Basin, Joshua Tree National Monument Exposure Factor Datasets Riverside

Desert Iguana (Dipsosaurus dorsalis)

Citation:

Life history of the desert iguana, Dipsosaurus dorsalis

Author(s)
Krekorian, C. O'Neil
Pages
415-424
Year
Issue
4
Volume
40
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Error
Body Weight - Mean 46.0 g Both Male and Female Both Adults and Juveniles 11 Thousand Palms Exposure Factor Datasets 31-32 mo Riverside 13.4 SD
Body Weight - Mean 43.3 g Both Male and Female Adult 5 Thousand Palms Exposure Factor Datasets 43-44 mo Riverside 9.7 SD
Body Weight - Mean 5.2 g Both Male and Female Juvenile 37 Thousand Palms Exposure Factor Datasets 0-1 mo Riverside 1.0 SD
Population Density 332 #/ha Both Male and Female Both Adults and Juveniles Not Reported Thousand Palms Exposure Factor Datasets Riverside
Longevity longest lived individual in study yr Both Male and Female Adult Not Reported Thousand Palms Exposure Factor Datasets Riverside
Survival/ Mortality 73 annual survivorship % Not Reported Hatchling 37 marked Thousand Palms Exposure Factor Datasets 0-2 mo Riverside
Survival/ Mortality 43 average annual survivorship estimated for 2 yrs % Not Reported 27-65 marked/yr Thousand Palms Exposure Factor Datasets 7-9 mo Riverside
Survival/ Mortality 46 average annual survivorship estimated over 3 yrs % Not Reported 11-30 marked/yr Thousand Palms Exposure Factor Datasets 19-22 mo Riverside
Survival/ Mortality 60 average annual survivorship estimated for 4 yrs % Both Male and Female Adult 5-38 marked/yr Thousand Palms Exposure Factor Datasets > 31 mo Riverside
Age at Sexual Maturity mo Not Reported Adult Not Reported Thousand Palms Exposure Factor Datasets Riverside
Citation:

Ontogenetic changes in diet, field metabolic rate, and water flux in the herbivorous lizard, Dipsosaurus dorsalis

Author(s)
Mautz, William J. and Kenneth A. Nagy
Pages
640-658
Year
Issue
6
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Dietary Composition Plant Species: Ambrosia dumosa (19.6%); Coldenia palmeri (10.1%); Dalea schottii (14.4%); Euphorbia polycarpa (4.5%); Geraea canescens (3.1%); Larrea divaricata (32.7%); Palafoxia linearis (11.7%); Rafinesquia neomexicana (1.6%); Schismus barbatus (0.7%);Arthropods (0.5%); Rodent feces (0.5%); Shed skin (0.6%) mean % of total dry matter stomach contents % Not Reported Adult 6 Thousand Palms Exposure Factor Datasets Riverside
Dietary Composition Plant Species: Ambrosia dumosa (15.4%); Coldenia palmeri (68.3%); Croton californica (2.8%); Dalea emoryi (5.9%); Dalea schottii (5.6%); Arthropods (1.3%); Gravel (0.8%) mean % of total dry matter stomach contents % Not Reported Hatchling 12 Thousand Palms Exposure Factor Datasets Riverside
Dietary Composition Plant Species: Ambrosia dumosa (6.1%); Coldenia palmeri (16.2%); Dalea emoryi (2.9%); Dalea schottii (26.7%); Geraea canescens (4.1%); Larrea divaricata (23.9%); Palafoxia linearis (3.4%); Rafinesquia neomexicana (0.4%); Unidentified vegetation (12.3%); Arthropods (3.0%) mean % of total dry matter stomach contents % Not Reported Hatchling 5 Thousand Palms Exposure Factor Datasets Riverside
Body Weight - Mean 3.5 average snout-vent length = 5.1 cm g Not Reported Hatchling 5 - 52/sampling time Thousand Palms Exposure Factor Datasets Riverside
Body Weight - Mean 60 average snout-vent length = 12.1 cm g Male Adult 9-24/sampling time Thousand Palms Exposure Factor Datasets Riverside
Body Weight - Mean 47 average snout-vent length = 11.2 cm g Female Adult 4 - 26/sampling time Thousand Palms Exposure Factor Datasets Riverside
Metabolic Rate range of average field metabolic rates (measured using doubly-labeled water) over 3 time periods ml CO2/g/hr Not Reported Adult 7-11/time period Thousand Palms Exposure Factor Datasets Riverside
Metabolic Rate range of average field metabolic rates (measured using doubly-labeled water) over 3 time periods ml CO2/g/hr Not Reported Hatchling 7-9/time period Thousand Palms Exposure Factor Datasets Riverside
Metabolic Rate 0.357 average field metabolic rate (measured using doubly-labeled water) ml CO2/g/hr Not Reported Juvenile 8 Thousand Palms Exposure Factor Datasets Riverside 0.024 SE
Food Ingestion Rate estimated feeding rate to support energy expenditure measured in field mg dry food/g/d Not Reported Adult 7-11/time period Thousand Palms Exposure Factor Datasets Riverside
Food Ingestion Rate estimated feeding rate to support energy expenditure measured in field mg dry food/g/d Not Reported Hatchling 7-9/time period Thousand Palms Exposure Factor Datasets Riverside
Time of Hatching or Parturition Aug. Not Reported Hatchling Not Reported Thousand Palms Exposure Factor Datasets Riverside
Citation:

Reproduction in the desert lizard, Dipsosaurus dorsalis

Author(s)
Mayhew, Wilbur W.
Pages
57-77
Year
Issue
1
Volume
27
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Age at Sexual Maturity > 4.5 yr Both Male and Female Adult Not Reported Dale Dry Lake, Palm Springs and Algodones Dunes Exposure Factor Datasets Imperial, Riverside, San Bernardino
Time of Mating/ Laying Apr. - July time of potential breeding based on testis volume Male Adult 365 Dale Dry Lake, Palm Springs and Algodones Dunes Exposure Factor Datasets Imperial, Riverside, San Bernardino
Citation:

Diet, behavior and water turnover in the desert iguana, Dipsosaurus dorsalis

Author(s)
Minnich, John E. and Vaughan H. Shoemaker
Pages
496-509
Year
Volume
84
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition see citation figure of % of food item in diet, based on dry weight of stomach contents % Not Reported Not Reported 11-14/season or location Palm Desert and Thousand Palms Exposure Factor Datasets Riverside
Food Ingestion Rate 50 rate estimated from intake of preformed water and water content of food for animals maintaining weight on natural vegetation g fresh wt food//kg/d Not Reported Not Reported Not Reported Palm Desert and Thousand Palms Exposure Factor Datasets Riverside
Citation:

Hibernation in the desert iguana, Dipsosaurus dorsalis

Author(s)
Moberly, Walter R.
Pages
152-160
Year
Volume
36
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Torpor or Hibernation Oct. - Mar. Not Reported Not Reported 95 Palm Springs Exposure Factor Datasets Riverside
Citation:

The ecology of the desert iguana Dipsosaurus dorsalis

Author(s)
Norris, Kenneth S.
Pages
265-287
Year
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Plants: Larrea divaricata (85%); Animal: Fecal pellets (10%); Bees (trace); Sand (trace) % volume of total stomach contents % Not Reported Not Reported 17 Coachella Valley Exposure Factor Datasets Riverside
Dietary Composition Plants: Dicoria canescens (45%); Flower heads of composite (10%); Coldenia sp. (5%); Trifolium sp. (20%); Animal: Grasshoppers (5%); Dipsosaurus (5%); Fecal pellets (5%) % volume of total stomach contents % Not Reported Not Reported 12 Coachella Valley Exposure Factor Datasets Riverside
Dietary Composition Plants: Dicoria canescens (50%); Flower heads of composite (25%); Dalea emoryi ? (10%); Coldenia sp. (10%) % volume of total stomach contents % Not Reported Not Reported 8 Coachella Valley Exposure Factor Datasets Riverside
Citation:

Relationship of space use to population density in an herbivorus lizard

Author(s)
Alberts, Allison C.
Pages
469-479
Year
Issue
4
Volume
49
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range over 3 yrs at 3 sites #/ha Both Male and Female Adult 96 marked lizards Coachella Valley Exposure Factor Datasets Riverside
Home Range minimum area versus probability estimate for 3 sites; estimate of area encompassing 95% of total space utilization m2 Male Adult Not Reported Coachella Valley Exposure Factor Datasets Riverside
Home Range minimum area versus probability estimates for 3 sites; estimate of area encompassing 95% of total space utilization m2 Female Adult Not Reported Coachella Valley Exposure Factor Datasets Riverside
Citation:

Home range size and overlap and their relationship to food abundance in the desert iguana, Dipsosaurus dorsalis

Author(s)
Krekorian, C. O'Neil
Pages
405-412
Year
Issue
4
Volume
32
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range 1462 home range estimated using the convex polygon method m2 Male Adult 20 Thousand Palms Exposure Factor Datasets Riverside
Home Range 1558 home range estimated using the convex polygon method m2 Female Adult 5 Thousand Palms Exposure Factor Datasets Riverside

Stephens' Kangaroo Rat (Dipodomys stephensi)

Citation:

Temporal and spatial demographic patterns in Dipodomys stephensi from Riverside County, California

Author(s)
McClenaghan, Leroy R. Jr. and Ernest Taylor
Pages
636-645
Year
Volume
74
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Survival/ Mortality range of minimum rate of survival of individuals in the trappable population per mo, measured over 19 mo at 3 sites Both Male and Female Juvenile 23-49 Lake Mathews [lat., 33^o50'N; long., 117^o27'30"W]; Motte Rimrock Reserve [lat., 33^o47'30"N; long., 117^o15'W] and San Jacinto Wildlife Area [lat., 33^o52'N; long., 117^o7'15"W] Exposure Factor Datasets Riverside
Population Density 19.7 average density over 19 mo study #/ha Both Male and Female Not Reported 87 San Jacinto Wildlife Area [lat., 33^o52'N; long., 117^o7'15"W] Exposure Factor Datasets Riverside
Population Density 26.2 average density over 19 mo study #/ha Both Male and Female Not Reported 96 Motte Rimrock Reserve [lat., 33^o47'30"N; long., 117^o15'W] Exposure Factor Datasets Riverside
Population Density 36.1 average density over 19 mo study #/ha Both Male and Female Not Reported 125 Lake Mathews [lat., 33^o50'N; long., 117^o27'30"W] Exposure Factor Datasets Riverside
Citation:

An age-structured demographic model for endangered Stephens' kangaroo rat

Author(s)
Price, Mary V. and Patrick A. Kelly
Pages
810-821
Year
Volume
8
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Longevity 19 maximum time of persistence at site mo Both Male and Female Adult Not Reported Motte Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside
Citation:

Estimating the distribution and abundance of a cryptic species, Dipodomys stephensi (Rodentia: Heteromyidae), and implications for management

Author(s)
Price, M.V. and P.R. Endo
Pages
293-301
Year
Volume
3
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Population Density range of densities estimated over 2 yrs #/ha Not Reported Not Reported 320 - 640 trap nights San Jacinto Wildlife Refuge Exposure Factor Datasets Feb. - Mar. Riverside
Citation:

Niche relationships of Dipodomys agilis and D. stephensi: two sympatric kangaroo rats of similar size

Author(s)
Price, Mary V., William S. Longland and Ross L. Goldingay
Pages
172-186
Year
Volume
126
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean 62.2 g Not Reported Not Reported 40 Exposure Factor Datasets Riverside
Citation:

Distances moved by Stephens' kangaroo rat (Dipodomys stephensi Merriam) and implications for conservation

Author(s)
Price, Mary V., Patrick A. Kelly and Ross L. Goldingay
Pages
929-939
Year
Volume
75
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range range of median maximum distance moved based on monthly live trapping capture data at 2 sites m Female Adult 94 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Home Range range of median maximum distance moved based on monthly live trapping capture data at 2 sites m Male Adult 97 - 121 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Home Range range of median maximum distance moved based on monthly live trapping capture data at 2 sites m Female Juvenile 21-54 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Home Range range of median maximum distance moved based on monthly live trapping capture data at 2 sites m Male Juvenile 17-59 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Home Range range of median maximum distance moved based on telemetry at 2 sites; 21 - 91 d observation m Female Adult 9 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Home Range range of median maximum distance moved based on telemetry at 2 sites; 15 - 127 d of observation m Male Adult 4-9 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Citation:

Diet of Stephens' Kangaroo rat, Dipodomys stephensi

Author(s)
Lowe, Margot
Pages
358-361
Year
Volume
42
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
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 5-10 pellets/mo Mottee Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside

Western Fence Lizard (Sceloporus occidentalis)

Citation:

Activity metabolism in the lizard Sceloporus occidentalis

Author(s)
Bennett, Albert F. and Todd T. Gleeson
Pages
65-76
Year
Issue
1
Volume
49
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean 13.1 g Not Reported Adult 65 Exposure Factor Datasets Orange, Riverside
Metabolic Rate see citation figure of standard metabolic rate measured as resting oxygen consumption at various temperatures (20-40C) cc O2/g/hr Not Reported Adult 31 Exposure Factor Datasets Orange, Riverside
Metabolic Rate 0.422 (20C); 0.783 (25C); 1.120 (30C); 1.315 (35C); 1.253 (40C) "aerobic increment during activity"; mean oxygen consumption during 2 minutes of burst activity at various temperatures (20-40C) cm3 O2/g/hr Not Reported Adult 5-8 animals/temperature Exposure Factor Datasets Orange, Riverside

Sideblotched Lizard (Uta stansburiana)

Citation:

Latitudinal variation in activity season mortality rates of the lizard Uta stansburiana

Author(s)
Wilson, Byron S.
Pages
393-414
Year
Issue
4
Volume
61
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range of average densities estimated over 2 yrs #/ha Not Reported Not Reported Not Reported Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] Exposure Factor Datasets Riverside
Survival/ Mortality range of early activity season (spring to summer) mortality rates measured over 3 yrs deaths/100 lizards/d Not Reported Adult 90-169/yr Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] Exposure Factor Datasets Riverside

Merriam's Kangaroo Rat (Dipodomys merriami)

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

California Striped Racer (Masticophis lateralis ssp. lateralis)

Citation:

Reproduction and food of some California snakes

Author(s)
Cunningham, John D.
Pages
17-19
Year
Volume
15
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size eggs/female Female Adult 4 Exposure Factor Datasets Los Angeles, Riverside
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