Stephens' Kangaroo Rat (Dipodomys stephensi)

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Stephens' Kangaroo Rat (Dipodomys stephensi)

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:

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
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 1-125/site and sex Motte Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside
Age at Sexual Maturity 3 mo Female Adult Not Reported Motte Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside
Population Density see citation figure of monthly population densities at two sites #/ha Both Male and Female Not Reported Not Reported Motte Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside
Clutches or Litters per year range over 2 yrs litters/yr Female Adult 8-14/yr Motte Rimrock Reserve and San Jacinto Wildlife Area Exposure Factor Datasets Riverside
Clutch or Litter Size 2.67 young/litter Female Adult 6 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:

Growth and development of Dipodomys stephensi

Author(s)
Lackey, James A.
Pages
624-632
Year
Volume
48
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Lab
Body Weight - Mean 67.26 g Both Male and Female Adult 14 Bonsall and San Luis Rey Exposure Factor Datasets San Diego
Age at Fledging, Metamorphosis, Weaning d Both Male and Female Juvenile Not Reported Exposure Factor Datasets Laboratory
Body Weight - Mean 4.4 g Both Male and Female Neonate 16 Exposure Factor Datasets 0 d Laboratory
Body Weight - Mean 10 g Both Male and Female Juvenile 16 Exposure Factor Datasets 5 d Laboratory
Body Weight - Mean 20 g Both Male and Female Juvenile 16 Exposure Factor Datasets 15 d Laboratory
Body Weight - Mean 30 g Both Male and Female Juvenile 16 Exposure Factor Datasets 22 d Laboratory
Body Weight - Mean 40 g Both Male and Female Juvenile 16 Exposure Factor Datasets 31 d Laboratory
Body Weight - Mean 46.1 g Both Male and Female Juvenile 16 Exposure Factor Datasets 63 d Laboratory
Growth Rate see citation figure relating body weight or length to age g Both Male and Female Juvenile 16 Exposure Factor Datasets 0 - 63 d Laboratory
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:

Assessment of popultion and habitat status of the Stephens' kangaroo rat (Dipodomys stephensi)

Author(s)
O'Farrell, Michael J. and Curt Uptain
Pages
198
Publisher
California Department of Fish and Game, Nongame Bird and Mammal Section
Year
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Population Density #/ha Not Reported Not Reported Not Reported Exposure Factor Datasets
Citation:

Aggressive behavior of Dipodomys stephensi, an endangered species, and Dipodomys agilis, a sympatric congener

Author(s)
Bleich, Vernon C. and Mary V. Price
Pages
646-651
Year
Volume
76
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Body Weight - Mean 65.83 g Male Adult 3 captured 3 days prior at Lake Mathews, Riverside County, CA Exposure Factor Datasets 1.19 SD Laboratory
Body Weight - Mean 62.30 g Female Adult 5 captured 3 days prior at Lake Mathews, Riverside County, CA Exposure Factor Datasets 2.40 SD Laboratory
Citation:

Dipodomys stephensi

Author(s)
Bleich, Vernon C.
Pages
1-3
Year
Volume
73
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location 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:

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
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 Adult 110-234 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
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
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