Most of the Stephens' kangaroo rat habitat is privately owned and a prime target for development. Description and M.V. It is 1 of 19 species of kangaroo rats (genus Dipodomys) that compromise a distinct group of rodents belonging to the family Heteromyidae [3;5]. Dipodomys stephensi. 0000002447 00000 n It spends the day in underground burrows and forages for seeds on the surface after dark. Most online reference entries and articles do not have page numbers. "s����� N�Xd�� �h00����X,���Ǹ�ߡЁ�كi�Z�6f�%+�7����0!�����@�2Ht20ޚ�ـ1�H�30�ng G/�5�30޵�@�*!Z ���I The terrain is typically flat or gently rolling. Beacham's Guide to the Endangered Species of North America. 1977. The kangaroo rat may move into cultivated fields when they are allowed to lie fallow. By 1984, only about 125,000 acres (50,500 hectares) remained, mostly in isolated patches. Ducks occur on all continents exce…, Stephens College: Distance Learning Programs, Stephen, Lily G(ebhardt) 1943- (Lily Vallerey), Stephen T. Marchello Scholarship Foundation, . Portland, OR. The MSHCP species objectives for Stephens’ kangaroo rat requires species-specific monitoring and management to ensure its long-term viability in the Plan Area, including tracking population densities and maintaining sparse, open grassland habitats. Draft recovery plan for the Stephen’s kangaroo rat. Stephens' kangaroo rat: Dipodomys stephensi (incl. Habitats can be classified in a number of ways in order to compare th…, Many biologists consider habitat loss, habitat degradation, and habitat fragmentation the primary threats to species survival. [4] Spencer, W.D. "�E�!T �:�yӀ.R� ��Q��@�L Title Stephens' Kangaroo Rat Range - CWHR M108 [ds1895] Publication date 2016-02-0100:00:00 Presentation formats digital map FGDC geospatial presentation format vector digital data Other citation details These are the same layers as appear in the CWHR System software. Other populations are found at MCB Camp Pendleton, Naval Weapons Station Fallbrook, Rancho Guejito, and Lake Henshaw/Warner Springs [2]. [9] Thomas, J.R. 1975. [7] Lackey, J.A. "Growth and Development of Dipodomys stephensi. " 820 15 <<3d74d401bdc2b447abf9511eb14cdda5>]>> It has been estimated that at the turn of the century 308,750 acres (125,000 hectares) of suitable habitat were available to this species., "Stephens' Kangaroo Rat As part of a multiyear program to design a translocation model for Stephens’ kangaroo rat, we have developed a set of species-specific microsatellite loci for SKR (Shier 2010, 2011). Habitat Individuals spend little time above ground (approximately one hour per night) [1]. quantifying dispersal patterns and reconstructing population histories. 0000001192 00000 n 0000000607 00000 n In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Native to open grasslands and sparse coastal sage scrub. 0 The California Transportation District contributed $1.5 million to fund the habitat restoration in compensation for habitat loss from the development of The plan is intended to identify sites for a viable Stephens' kangaroo rat preserve. Threats include habitat loss resulting from widespread, rapid urbanization and agricultural development; fragmented and isolated populations throughout its range; reduction of habitat suitability from anthropogenic activities including disking for weed abatement, plowing, introduction of nonnative vegetation that kill individuals or destroy or degrade habitat, pasture improvement, or dry farming; application of rodenticides and perhaps other pesticides; predation by domestic pets; overgrazing by livestock; soil compaction by off-road vehicles, horses, and other livestock; and climate change [4;5]. 820 0 obj<> endobj Population on Ramona Grasslands Preserve is only one on Conserved Lands in San Diego County. As the flat valleys have become more populated, the Stephens' kangaroo rat has been increasingly confined to the bases of hills, the tops of level ridges, and the margins of plowed fields. The Fish and Wildlife Service (FWS) has reported that some landowners have plowed or disked their lands after being informed of the presence of the kangaroo rat; other populations have suspiciously disappeared, apparently the victims of rodenticide. Seven Core Areas for SKR are identified in the MSHCP and species objective 3 for SKR states: Bleich, B. C. 1977. 0000000995 00000 n Journal of Mammalogy 48:624-632. The species is so called due to hopping like a kangaroo. Home range use of Stephens' kangaroo rats: implications for density estimation.


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