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首页> 外文期刊>Michigan Academician >Distribution of Reptiles and Amphibians on the Islands of Eastern Lake Michigan: Summary and Analysis
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Distribution of Reptiles and Amphibians on the Islands of Eastern Lake Michigan: Summary and Analysis

机译：密歇根州东部湖群岛上的爬行动物和两栖动物分布：摘要和分析

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摘要

We studied the island biogeography of reptiles and amphibians in the Lake Michigan Archipelago, which is composed of twelve major islands in eastern Lake Michigan. We created an updated distributional record of reptiles and amphibians in the Lake Michigan Archipelago, quantitatively compared our distribution data with a commonly used data set published in 1948, analyzed the distributions in light of the theory of island biogeography, and compared species diversity of the Archipelago to that of the mainland and other island groups in the Great Lakes. A total of 10 reptile, and 11 amphibian species are documented in the Lake Michigan Archipelago. Our updated distribution data are a qualitative improvement over the 1948 data set. There is a positive relationship between island area and the number of both amphibian species and reptile species present, but no relationship between the latter variables and island distance to the mainland. The Lake Michigan Archipelago appears to be less diverse both in general and in relation to the adjacent mainland than other island groups in the Great Lakes. Possible reasons for some of our findings are discussed. This research underscores the incompleteness of commonly used distribution data for the Lake Michigan Archipelago, and raises several questions for future study.
机译：我们研究了密歇根湖群岛的爬行动物和两栖动物的岛屿生物地理，该群岛由密歇根湖东部的十二个主要岛屿组成。我们在密歇根湖群岛创建了爬行动物和两栖动物的最新分布记录，将分布数据与1948年发布的常用数据集进行了定量比较，根据岛屿生物地理学理论分析了分布，并比较了群岛的物种多样性到大陆和大湖中其他岛屿群岛的情况。密歇根湖群岛记录了总共10种爬行动物和11种两栖动物。我们更新的发行数据是对1948年数据集的定性改进。岛屿面积与两栖物种和爬行动物物种的数量之间存在正相关关系，但后者变量与岛屿到大陆的距离之间没有关系。密歇根湖群岛在总体上和与邻近大陆的关系方面似乎都没有五大湖中的其他岛屿群那么多样化。我们讨论了一些发现的可能原因。这项研究强调了密歇根湖群岛常用分布数据的不完整性，并提出了一些需要进一步研究的问题。

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