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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]
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 mouse depends on the gopher tortoise (also endangered) for its survival, because it makes its burrows from tortoise burrows, or in the absence of those, oldfield mouse burrows. [182] Non-native species brought in boats by colonizers are the black rat, brown rat and house mouse.
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 ...
Among the wildlife in the refuge are box turtles, gopher tortoises, dolphins, manatees, and birds such as osprey, brown pelicans, white ibis, royal and sandwich terns, black skimmers, American oystercatchers and laughing gulls. The southern end of Egmont Key and a section of the east beach are closed year-round to all public use to provide ...
The Texas tortoise (Gopherus berlandieri) is a species of tortoise in the family Testudinidae. The species G. berlandieri is one of six species of tortoises that are native to North America. Geographic range