Turtle Conservation Initiative - Gopher Tortoise
The Gopher Tortoise may be one of the most important species in sandhill ecosystesm. The Gopher Tortoise digs burrows in sandy soil; these burrows in turn offer refuge to over 300 other species, including quail, mice, rabbits, Burrowing Owls, Eastern Indigo Snakes, and the elusive Gopher Frog. Because of the vast array of cohabitants that use the burrows, the Gopher Torotise has earned the title of a keystone species in sandhill ecosystems.
Gopher Tortoise populations are declining throughout much of its range. The Gopher Tortoise is federally listed as threatened in Alabama, Mississsippi, and Lousiana, and is currently under review for federal lising in Georgia., Florida, and South Carolina. This species reaches maturity late in life and often produce small clutches, resulting in low recruitment into the population. Low reproductive output combined with extensive habitat loss, human collection for food, and a wide-spread respitory disease that inflicts most individuals, has had a considerable negative effect on the population as a whole, and in turn, the species that rely on Gopher Tortoise burrows for haibat and refuge.
Gopher Tortoise Monitoring
The Orianne Society has established a long-term Gopher Tortoise Monitoring Program on our Orianne Indigo Snake Preserve in Telfair County, Georgia. The Preserve is very important to the conservation of Gopher Torotises as populations on the Perserve are currently very high (approximately 200 Tortoises). Our Gopher Tortoise Monitoring Project allows us to observe the status of this population over time and provides us with the information we need to take a proactive approact to conserving the Population. In addtion, the Monitoring Project allows us to determine how Tortoise populations repond to our habitat restoration activities ove time. This Project entails Orianne Staff conducting Mark-Recapture surveys of Gopher Tortoises on the Preserve. The data collected during these surveys allows us to estimate the rate of reproduction, age class size, and survival of Gopher Tortoise populations.
Gopher Tortoise Reproduction
Gopher Tortoises are long-lived, low reproductive output animals and their presence is critical to the persistence of Eastern Indigo Snakes in the northern portions of their range. Adult tortoises could live for many years even if their offspring where not surviving long enough to become adults. We are planning a study that will examine the reproductive biology of Gopher Tortoises in the Preserve. Specifically, we are interested in determining whether juvenile tortoises are being recruited into the breeding population. The results from this study will help us determine if active measures need to be taken to improve Gopher Tortoise survival within the Preserve.
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