R. Peek, S. Kupferberg, A. Catenazzi, Philip Georgakakos, M. Power
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引用次数: 0
摘要
当观察到意想不到的捕食者-猎物相互作用时，非生物条件可以揭示有关物种生态学的见解。在过去30年(2008年)最温暖的5月份之一，我们观察到一只成年西北塘龟(actiemys marmorata)在南福克鳗鱼河(South Fork Eel River)捕食一只幼年海岸大鲵(Dicamptodon tenebrosus)。在阳光充足的主干河中发现的濒死、被咬伤或死亡的腾趾龙的温度汇编记录突出了它们在面临热压力时的脆弱性，这些温度超出了它们通常的栖息地，即阴凉的支流。
Abstract When unexpected predator-prey interactions are observed, abiotic conditions can reveal insights about the ecology of the species involved. During one of the warmest months of May in the last 30 y (2008), we observed an adult Northwestern Pond Turtle, Actinemys marmorata, preying upon a paedomorphic Coastal Giant Salamander, Dicamptodon tenebrosus, in the South Fork Eel River. Compiled records of temperatures when moribund, bitten, or dead D. tenebrosus were found in the sunny mainstem river highlight their vulnerability when facing thermal stress beyond their usual habitat in cool shaded tributaries.
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