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The gopher tortoise (Gopherus polyphemus) is a species of tortoise in the family Testudinidae. The species is native to the southeastern United States. The gopher tortoise is seen as a keystone species because it digs burrows that provide shelter for at least 360 other animal species. G. polyphemus is threatened by predation and habitat ...
The diet of tortoises contain excess salt, sodium, chloride, and potassium that must be purged from the body, and drinking free standing water, even if only once or a few times each year, is essential for this function and for tortoise survival. Opportunities for gopher tortoises to drink water vary greatly between the species in the genus.
The annual death rate of adults is typically a few percent, but is much higher for young desert tortoises. Only 2–5% of hatchlings are estimated to reach maturity. Estimates of survival from hatching to 1 year of age for Mojave Desert tortoises range from 47 to 51%. Survival of Mojave Desert tortoises from 1 to 4 years of age is 71–89%. [8]
Tortoises have been known to survive oceanic dispersals of more than 740 km. ... Gopherus polyphemus, gopher tortoise; Gopherus evgoodei, Sinaloan desert tortoise, ...
the Mojave or Agassiz's desert tortoise (Gopherus agassizii); known primarily from the California counties of Imperial, Inyo, Kern, Los Angeles, Riverside, San Bernardino, and San Diego. [5] Its range continues northeast of Death Valley and the Mojave Desert through the Nevada counties of Clark , Esmeralda , Lincoln and Nye , as well as Mohave ...
The Bolson tortoise (Gopherus flavomarginatus), also called the Mexican giant tortoise, Mexican gopher tortoise, yellow-bordered tortoise or yellow-margined tortoise, is a species of tortoise from North America. Of the six North American tortoise species, it is the largest, having a carapace length of about 46 cm (18 in).
Gopher tortoise; S. Sonoran Desert tortoise; T. Texas tortoise This page was last edited on 30 March 2013, at 05:37 (UTC). Text is available under the Creative ...
Goff's pocket gopher: Geomys pinetis goffi: Pineda Ridge, Florida: Last recorded in 1955. [19] Tacoma pocket gopher: Thomomys mazama tacomensis: Tacoma-Steilacoom, Washington area Last collected in 1962. Extinct due to habitat alteration through residential development and gravel mining. [16]