HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems
|
HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems |
|
|
Havasu National Wildlife Refuge Less than a sixth of this Refuge lies in California. The
major waterfowl migratory or wintering areas are in the Arizona portion. Within the California portion there are several plant
communities, the freshwater marshes, particularly in the Topock Gorge, desert
riparian, and the creosote bush scrub. There is a rich variety of desert animal life in the
Refuge, including several rare and endangered species.
The California bighorn sheep, Ovis canadensis californiana, occurs in
the Chemehuevi Mountains. This is
one of the few places where the sheep can reach the river.
Wild burro competition with the bighorn is particularly severe in these
mountains. The Yuma clapper rail,
Rallus longirostris yumanensis, breeds in the marshes. In the river the endangered humpback sucker, Xyrauchen
texanus, still occurs, but the Colorado squaw-fish, Ptychoheilus lucius, and
the bonytail, Gila elegans, which were once found here, may be extinct in this
area. Included in the Refuge is the
Topock Gorge, the most spectacular area along the river Use: Research,
education, recreational. Proposals
have been made to include portions of the area as Research Natural Areas and the
Gorge and uplands as a Wilderness Area. Ref: Dill,
William A., 1944. The Fishery of the
Lower Colorado River. California
Fish & Game, Vol. 30 (3), p. 109-211. Weaver, Richard A. and John Hall, 1971.
Desert Bighorn Sheep in Southeastern San Bernardino County. Mimeo.
California Department of Fish and Game. March 1975
|
|
Send mail to naturebase@aol.com with
questions or comments about this web site.
|