The population studied by Thomas (1975) exists in healthy abundance, but may change rapidly in the face of development. Retrieved November 10, 2017, from,, Service, U. F. (n.d.). Preferred perennials are buckwheat and chamise; preferred annuals are brome grass and filaree. California Department of Fish and Game, 1999.California's Wildlife, Sacramento, CA.Written by: P. Brylski, reviewed by: H. Shellhammer, edited by: R. Duke. However, the Fish and Wildlife Service does accept donations, which can be made out to a certain cause (e.g. The little guys are important too! Home Range: Home range varied from 0.06 ha (0.14 ac) to 0.10 ha (0.24 ac). Univ. 2) Work with the local land management bureau to ensure the land is maintained in a way that will keep the species population expanding. The suit was filed in federal court Wednesday, Sept. 2, opening another chapter in the ongoing litigation over the nocturnal Inland critter that dates back to at least 1995. Bleich, V. C. 1977. We should look more at its role within is larger ecosystem. A. What does it eat, what eats it, what eats that? Thomas, J. R., Jr. 1975. But after the Pacific Legal Foundation sued to compel the agency to decide on the petition, the wildlife service decided in 2010 to leave the status as endangered. In 2012, another court fight over 1,190 acres west of March Air Reserve Base ended in a settlement that set aside 660 acres as habitat for the rat and designated 424 acres for industrial development and a park. The total adult population size is above 10,000, but severe fragmentation threatens this size, as number continue to decrease yearly, which has led to the endangered classification of the Kangaroo rat. How does that affect the ecosystem when this trail finally does reach humans? Probably obtains water from food. 73. 14:313-344. Cause of Listing and Main Threats of Extinction. Their habitat consists of sparsely vegetated flatlands, which were plentiful in the area prior to endangerment. GET BREAKING NEWS IN YOUR BROWSER. If you see comments that you find offensive, please use the “Flag as Inappropriate” feature by hovering over the right side of the post, and pulling down on the arrow that appears. Calif. Dept. The FWS has rallied support to help survey population as well as get a more specific range on the species, which has raised enough money to be able to get a better estimate on population size as well as a very precise range of the species. Activity Patterns: Nocturnal. Ecologists found over 65 Stephens’ Kangaroo Rat sites occupied by the species which were under 40 hectares. Feeding: Granivorous. The ‘C’ at the end of the priority indicates that the species’ recovery may interfere with building or economic development. The conservation effort ensures that the reserves are spread among the Kangaroo Rat’s natural range in order to keep them in their local communities. Calif. Publ. I think it's really important for developers and landscape designers to also be aware of the habitat they're destroying - or how the can mitigate the effects of their implementations. The Stephen’s Kangaroo Rat was originally listed as threatened in 1971, and was later named endangered on September 30, 1988. I wonder what setbacks the Riverside County Habitat Conservation Agency faced back in the early 2000's that prevented them from having the ability to delist the kangaroo rat as an endangered species.This was a well done blog and I really enjoyed learning more about the Stephen's kangaroo rat.- David Klopp, There was a few grammatical errors here and there, but overall, your blog was good. Stephens' Kangaroo Rat Range - CWHR M108 [ds1895] Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for Californias wildlife. Stephens’ Kangaroo Rat Survey and Management Recommendations for the Santa Ysabel Open Space Reserve San Diego County, California Prepared by Wayne D. Spencer, Ph.D. 815 Madison Avenue San Diego, California 92116 Prepared for The Nature Conservancy 3033 Fifth Avenue, Suite 105 San Diego, California 92103 August 2002 Comments: The Stephens' kangaroo rat is a Threatened and Endangered species. Nest building was observed in captive, pregnant individuals (Lackey 1967a). Main competitors for food resources probably are cricetid rodents, although there also is some niche overlap with D. agilis. 1967b. The Lake Mathews Ecological Reserve and the San Jacinto Wildlife Area have been established and offer a protected environment for the species, which has allowed them to raise population slowly. Burrows may be excavated in firm soil that is "neither extremely hard nor sandy" (Lackey 1967a), but Thomas (1975) found most individuals occupying abandoned pocket gopher burrows. The map to the right shows the small area the Stephens’ Kangaroo Rat occupies, which makes it an easy target for extinction, being that most sites of the species are in a small geographic range. From the federal jurisdiction, US Navy, Marines, and Air Force bases are working to protect land that this species lives on and have drafted their own management plans for the areas they are located in. 1967a. J. Mammal. The kangaroo rat issue has been repeatedly argued in court. In 1995, the Riverside County Farm Bureau and other property-owner groups petitioned the wildlife service to delist the animal, arguing that scientific data showed the animal was doing well and should not have been listed in the first place.