The Greater Everglades Ecosystem is a globally important ecoregion, home to 68 threatened or endangered species and the largest designated wilderness area in the Eastern United States. Anthropogenic manipulations of the natural hydrology have led to widespread degradation of this ecosystem and monitored population declines across multiple taxa. Simultaneous introductions of hundreds of non-native species into South Florida and their subsequent invasion into the Everglades has further impacted native Everglades communities. Predictions for future climate change suggest that the Everglades is headed towards a drier future, making it crucial to understand how changes in hydrological regimes will impact both native and non-native fauna. Our study combines the results of a landscape-scale experimental manipulation conducted to assess the impact of differing hydrological regimes at the Loxahatchee Impoundment Landscape Assessment between 2018 and 2020 with a community composition analysis of data collected across multiple habitat types throughout Everglades National Park between 2000 and 2002. Both datasets used a variety of survey methods to extensively characterize the amphibian and reptile amphibian assemblage across habitat types and hydrological regimes. An NMDS analysis indicated that variation in hydrology is the primary axis structuring reptile and amphibian habitat usage across the Everglades, with non-native species more likely to be indicators of drier habitat types. This result concurred with those from the landscape-scale manipulation, in which non-native species were significantly favored by drier hydrological conditions. Taken together, these results suggest that a drier future within the Greater Everglades Ecosystem may facilitate further spread of South Florida’s diverse non-native amphibian and reptile assemblage.

大沼泽地生态系统是全球重要的生态区，这里有68种濒危或濒危物种，是美国东部最大的指定荒野地区。自然水文的人为操纵已导致该生态系统的广泛退化，并在多个分类单元中监测了种群的减少。同时向南佛罗里达州引入了数百种非本地物种，并随后将其入侵大沼泽地，进一步影响了大沼泽地土著社区。对未来气候变化的预测表明，大沼泽地的未来将更加干燥，因此了解水文状况的变化将如何影响本地和非本地动物至关重要。我们的研究结合了景观规模实验操作的结果，以评估2018年至2020年Loxahatchee蓄水池景观评估中不同水文状况的影响，以及对2000年至2006年整个大沼泽国家公园多种栖息地类型收集的数据进行的社区组成分析。 2002年。两个数据集都使用了多种调查方法来广泛描述跨生境类型和水文状况的两栖和爬行类两栖动物组合。NMDS分析表明，水文变化是构成整个大沼泽地爬行动物和两栖动物栖息地使用的主要轴，而非本地物种更可能是较干旱的栖息地类型的指标。该结果与景观尺度操作得出的结果一致，较干旱的水文条件对非本地物种特别有利。综上所述，这些结果表明，大沼泽地生态系统内更干燥的未来可能会促进南佛罗里达州多样化的非本地两栖动物和爬行动物组合的进一步传播。