大面积水系中易位鳄鳄龟的活动范围和生境利用

Pub Date : 2023-06-14 DOI:10.1656/058.022.0sp1224

Rebecca A. Cozad, Derek B. Breakfield, M. Aresco

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引用次数: 2

摘要

摘要短吻鳄鳄龟(Macrochelys temminckii)以低密度生活在佛罗里达州的Choctawhatchee河水系。易位可以帮助增加种群数量，但其对该物种的有效性尚未得到很好的研究。我们在2017年9月至2019年5月期间将9只成年黑猩猩放生到乔克塔瓦奇河(Choctawhatchee River)的断流处，并对它们进行无线电跟踪，以监测它们的活动和栖息地的使用情况。海龟的活动范围明显大于先前报道的范围(雄性为12,882.8±8781.5 m，雌性为10,621.6±6020.4 m)，但它们都建立了一个与1个或更多个体重叠的活动范围。有几次海龟被发现在一起，这表明它们有相互作用和潜在的交配机会。这项研究表明，易位可能是增加该物种种群的有效策略。

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Home Range and Habitat Use of Translocated Alligator Snapping Turtles (Macrochelys temminckii) in an Extensive River System

Abstract - Macrochelys temminckii (Alligator Snapping Turtle) occurs at low densities in the Choctawhatchee River system in Florida. Translocation could help bolster the population, but its effectiveness for this species is not well studied. We released 9 adults into a cutoff of the Choctawhatchee River and radio-tracked them from Sept 2017 to May 2019 to monitor movements and habitat use. Turtles had significantly larger home-range distances than previously reported (12,882.8 ± 8781.5 m for males and 10,621.6 ± 6020.4 m for females), but all established a home range overlapping with 1 or more individuals. On several occasions turtles were found together, suggesting interaction and potential mating opportunities. This study suggests that translocation may be an effective strategy for augmenting populations of this species.

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