Roadless Areas
Home/Species/ Tipton Kangaroo Rat

Dipodomys nitratoides nitratoides

Merriam, 1894

Tipton Kangaroo Rat

T1T1 (G2T1T2) Found in 3 roadless areas NatureServe Explorer →
T1T1Global Rank
Identity
Unique IDELEMENT_GLOBAL.2.103526
Element CodeAMAFD03152
Record TypeSPECIES
ClassificationSubspecies
Classification StatusStandard
Name CategoryVertebrate Animal
Endemicendemic to a single state or province
KingdomAnimalia
PhylumCraniata
ClassMammalia
OrderRodentia
FamilyHeteromyidae
GenusDipodomys
Concept Reference
Hall, E. R. 1981a. The Mammals of North America, second edition. Vols. I & II. John Wiley & Sons, New York, New York. 1181 pp.
Conservation Status
Review Date2014-09-26
Change Date2014-09-26
Edition Date2011-02-17
Range Extent<100-250 square km (less than about 40-100 square miles)
Rank Reasons
Small range in southern California, much reduced by agricultural development; threats include flooding, development, illegal or misuse of rodenticides, or improper vegetation management (grazing, fire); development demands continue to increase.
Range Extent Comments
See files for D. NITRATOIDES.
Occurrences Comments
See files for D. NITRATOIDES.
Threat Impact Comments
See files for D. NITRATOIDES.
Ecology & Habitat

Description

See files for D. NITRATOIDES.

Diagnostic Characteristics

Differs from other subspecies in mean values for various external and cranial characters; most similar to EXILIS, smaller than BREVINASUS in length of tail (137.7, 137.4, 148.8, in mm, respectively, for NITRATOIDES, EXILIS and BREVINASUS), length of hind foot (34.0, 33.4, 36.0), width of bulla (21.6, 21.7, 22.6), and condylobasal length (29.9, 29.7, 31.4); NITRATOIDES has the least amount of red pigment, BREVINASUS the most (see Best 1991).

Habitat

See files for D. NITRATOIDES.

Ecology

See files for D. NITRATOIDES.

Reproduction

See files for D. NITRATOIDES.
Terrestrial Habitats
Shrubland/chaparralGrassland/herbaceous
Other Nations (1)
United StatesN1
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentUnknownExtreme or 71-100% pop. declineHigh (continuing)
2 - Agriculture & aquacultureUnknownExtreme or 71-100% pop. declineHigh (continuing)
2.1 - Annual & perennial non-timber cropsUnknownExtreme or 71-100% pop. declineHigh (continuing)
3 - Energy production & miningUnknownSerious - moderateHigh (continuing)
3.1 - Oil & gas drillingUnknownSerious - moderateHigh (continuing)
7 - Natural system modificationsRestricted - smallExtreme or 71-100% pop. declineHigh (continuing)
7.2 - Dams & water management/useRestricted - smallExtreme or 71-100% pop. declineHigh (continuing)
8 - Invasive & other problematic species, genes & diseasesUnknownExtreme - moderateHigh (continuing)
8.1 - Invasive non-native/alien species/diseasesUnknownExtreme - moderateHigh (continuing)
11 - Climate change & severe weatherPervasive - largeExtreme - moderateHigh (continuing)
11.4 - Storms & floodingPervasive - largeExtreme - moderateHigh (continuing)

—

Roadless Areas (3)
California (3)
AreaForestAcres
AntimonyLos Padres National Forest40,911
Greenhorn CreekSequoia National Forest28,226
Mill CreekSequoia National Forest27,643
References (13)
  1. Best, T. L. 1991. <i>Dipodomys nitratoides</i>. Am. Soc. Mamm., Mammalian Species No. 381:1-7.
  2. California Department of Fish and Game (CDF&G). 1990. 1989 annual report on the status of California's state listed threatened and endangered plants and animals. 188 pp.
  3. California Fish and Game Commission and Department of Fish and Game. 1980. At the crossroads, a report on California's endangered and rare fish and wildlife. Dept. of Fish and Game, Sacramento.
  4. Grinnell, J. 1933. Review of the recent mammal fauna of California. University of California Publications in Zoology 40:71-234.
  5. Hall, E. R. 1981a. The Mammals of North America, second edition. Vols. I &amp; II. John Wiley &amp; Sons, New York, New York. 1181 pp.
  6. Ingles, L. G. 1965. Mammals of the Pacific States. Stanford University Press, Stanford, California.
  7. Johnson, W. E., and R. K. Selander. 1971. Protein variation and systematics in kangaroo rats (genus <i>Dipodomys</i>). Systematic Zoology 20:377-405.
  8. Koos, K. 1977. The Fresno kangaroo rat population survey, 1977. California Dept. Fish & Game Nongame Wildlife Invest. Final Report, Project E-1-1, Job IV-1.1.
  9. Matthews, J.R. and C.J. Moseley (eds.). 1990. The Official World Wildlife Fund Guide to Endangered Species of North America. Volume 1. Plants, Mammals. xxiii + pp 1-560 + 33 pp. appendix + 6 pp. glossary + 16 pp. index. Volume 2. Birds, Reptiles, Amphibians, Fishes, Mussels, Crustaceans, Snails, Insects, and Arachnids. xiii + pp. 561-1180. Beacham Publications, Inc., Washington, D.C.
  10. Ryan, J. M. 1989. Comparative myology and phylogenetic systematics of the Heteromyidae (Mammalia, Rodentia). Univ. Michigan Museum Zoology Miscellaneous Publication (176):1-103.
  11. U.S. Fish and Wildlife Service (USFWS). 10 July 1987. Proposed endangered status for the Tipton kangaroo rat. Federal Register 52:26040-26043.
  12. U.S. Fish and Wildlife Service (USFWS). 1990. Endangered and threatened species recovery program: report to Congress. 406 pp.
  13. Williams, D. F. 1985a. A review of the population status ofthe Tipton kangaroo rat, <i>Dipodomys nitratoides nitratoides</i>. Final report prepared for U.S. Fish &amp; Wildlife Service, Sacramento, Endangered Species Office. 44 pp.