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Spatial Distribution of Alligator Holes in the Central Everglades

机译：大沼泽地中鳄鱼洞的空间分布

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摘要

Alligator holes are a key feature of Everglades marshes that provide refugia and foraging sites for a wide range of species. We investigated the spatial pattern of alligator holes in Water Conservation Area 3, a part of the central Everglades, and examined associations among alligator holes, canals, and hydrology. There were fewer alligator holes within 1000 m of canals than expected, supporting the hypothesis that Alligator mississippiensis (American Alligator) are using canals as aquatic refugia rather than creating or maintaining alligator holes in the marsh. In addition, density of holes was associated with hydrology; specifically, areas that were drier had more than twice as many alligator holes than areas that were wetter. Analyses from this study provide a baseline for evaluating changes in location and density of alligator holes in response to canal removal and hydrologic changes that will occur as part of Everglades restoration.
机译：鳄鱼洞是大沼泽地沼泽的主要特征，可为各种物种提供避难所和觅食场所。我们调查了大沼泽地中部水利保护区3中的鳄鱼洞的空间格局，并研究了鳄鱼洞，运河和水文学之间的联系。运河1000 m内的鳄鱼洞比预期的要少，这支持了美国短吻鳄（Alligator mississippiensis）（美国鳄鱼）将运河用作水生避难所的假设，而不是在沼泽中形成或维持鳄鱼洞。另外，孔的密度与水文学有关。特别是，较干燥的区域的鳄鱼皮洞数量是较潮湿的区域的两倍多。这项研究的分析为评估鳄鱼洞位置和密度的变化提供了基线，该变化是由于作为大沼泽地修复的一部分而发生的运河运移和水文变化而引起的。

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