Birds of the Land of Swallows: Contribution of the Main Ecosystems of Cozumel Island to Its Avian Diversity

IF 1.3 4区 环境科学与生态学 Q3 ECOLOGY
I. MacGregor‐Fors, M. Gómez-Martínez, L. Vázquez, M. L. Martínez
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引用次数: 0

Abstract

ABSTRACT Caribbean islands are important hotspots for endemic species, concentrating high biodiversity on exceptionally small areas. Cozumel Island is not an exception, yet little published information exists on its bird diversity. In this study, we assessed the contribution of each major ecosystem of Cozumel Island (i.e., tropical forest, mangrove, palm thicket, and urban setting) to the island's avian diversity. Avian richness was highest in tropical forests, followed by mangroves, palm thickets, and urban setting. Bird densities were highest in urban settings, followed by tropical forests, mangroves, and palm thickets. Species composition similarity among ecosystems was low, with the most dissimilar ecosystem being the urban setting. Interestingly, we recorded the highest number of unique species in mangroves, followed by tropical forests, urban settings, and palm thickets. Tropical forests and mangroves of Cozumel Island are the main ecosystems harboring high avian diversity, with tropical forests housing high avian densities and endemics and mangroves including the most unique species. As expected, the contribution of urban settings to the avian diversity of Cozumel Island is limited and includes some highly abundant invasive species, of which the Eurasian Collared-Dove could represent a major ecological threat.
燕子之国的鸟类:科苏梅尔岛主要生态系统对鸟类多样性的贡献
加勒比岛屿是特有物种的重要热点,在非常小的区域集中了高生物多样性。科苏梅尔岛也不例外,但关于其鸟类多样性的公开信息很少。在本研究中,我们评估了科苏梅尔岛各主要生态系统(即热带森林、红树林、棕榈灌丛和城市环境)对岛上鸟类多样性的贡献。鸟类丰富度在热带森林中最高,其次是红树林、棕榈灌丛和城市环境。鸟类密度在城市环境中最高,其次是热带森林、红树林和棕榈丛林。各生态系统物种组成相似性较低,城市环境物种组成差异性最大。有趣的是,我们在红树林中记录到的独特物种数量最多,其次是热带森林、城市环境和棕榈丛林。科苏梅尔岛的热带森林和红树林是拥有高度鸟类多样性的主要生态系统,热带森林拥有高鸟类密度和特有鸟类,红树林包括最独特的物种。正如预期的那样,城市环境对科苏梅尔岛鸟类多样性的贡献是有限的,其中包括一些高度丰富的入侵物种,其中欧亚项圈鸽可能是主要的生态威胁。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Ecoscience
Ecoscience 环境科学-生态学
CiteScore
2.80
自引率
0.00%
发文量
13
审稿时长
>36 weeks
期刊介绍: Écoscience, is a multidisciplinary journal that covers all aspects of ecology. The journal welcomes submissions in English or French and publishes original work focusing on patterns and processes at various temporal and spatial scales across different levels of biological organization. Articles include original research, brief communications and reviews.
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