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首页> 外文期刊>Southeastern naturalist >Reciprocal Intraguild Predation between Alligator mississippiensis (American Alligator) and Elasmobranchii in the Southeastern United States
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Reciprocal Intraguild Predation between Alligator mississippiensis (American Alligator) and Elasmobranchii in the Southeastern United States

机译：鳄鱼密西西比人（美国鳄鱼）与美国东南部的Elasmobranchii之间的互惠intrazuild捕食

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摘要

The food habits and predatory interactions of Alligator mississippiensis (American Alligator) have been thoroughly studied within populations inhabiting inland freshwater ecosystems; however, it is increasingly evident that coastal populations habitually forage in estuarine and nearshore marine ecosystems inhabited by other top predators. While few studies have been performed, data reported thus far from marine-foraging populations indicate individuals chiefly consume small-bodied prey such as crustaceans, fish, and wading birds. Nonetheless, capture and consumption of large-bodied marine prey such as multiple species of sea turtles and a single species of Elasmobranchii (sharks and rays) have been documented. Here, we examine evidence regarding reciprocal intraguild predation between American Alligators and elasmobranchs. We provide the first evidence of American Alligator depredation of 4 Elasmobranchii species and review putative evidence for Elasmobranchii depredation of American Alligators. We discuss the ecological significance of these interactions, draw comparisons to similar interactions experienced by other crocodilians, and recommend further avenues for research on the subject.
机译：群体密西西比人（美国鳄鱼）的食物习惯和掠夺性相互作用已经在居住在内陆淡水生态系统的人口中彻底研究;然而，越来越明显地明显，沿海人群习惯性地觅食在河口和近岸海洋生态系统被其他顶级捕食者居住的近岸海洋生态系统。虽然已经进行了少数研究，但到目前为止的数据远非海洋觅食人群，表明个人主要消耗甲壳类动物，鱼类和涉水鸟类等小型猎物。尽管如此，已经记录了捕获和消费大型海龟等多种海龟和单一物种的Elasmobranchii（鲨鱼和光线）。在这里，我们研究了有关美国鳄鱼和Elasmobranchs之间的互惠互联网捕食的证据。我们提供了美国鳄鱼的第一种证据，对4个ElasmobRanchii物种的掠夺以及审查ElasmobRanchii掠夺美国短吻鳄的推定证据。我们讨论了这些相互作用的生态意义，利用其他鳄鱼所经历的类似互动的比较，并建议进一步研究对象的研究。

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  • 来源
    《Southeastern naturalist》 |2017年第3期|共14页
  • 作者

    Nifong James C.; Lowers Russell H.;

  • 作者单位

    Kansas State Univ Div Biol Kansas Cooperat Fish &

    Wildlife Res Unit 104 Ackert Hall Manhattan KS 66506 USA;

    Integrated Mission Support Serv Mail Code IM-300 Kennedy Space Ctr FL 32899 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;
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