Does the Southern Green Anaconda, Eunectes murinus, seek areas of high prey concentration in southeastern Peru?

IF 1.8 4区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Food Webs Pub Date : 2024-04-11 DOI:10.1016/j.fooweb.2024.e00348

Patrick S. Champagne , Thomas B. Herman , Paul Rosolie , Dylan Singer , Dan Horton , Carter J. Payne , Lucy Dablin , David Colville , Julio Cardenas , Miryam Quevedo , Trevor Avery , Renata Leite Pitman

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引用次数: 0

Abstract

Although behavior of E. murinus was broadly described over a century ago, observations of predation by E. murinus are rare. Some evidence suggests that it may target sites when hunting. We report details of six livestock depredation events at a single locality near Puerto Maldonado, Peru. Additionally, we compare positions of three radio-tagged snakes with known locations of mineral licks in their home ranges and describe the relationship of a single radio-tagged individual with game trails. Our observations of predation at mineral licks, and the association of radio-tagged individuals with them, suggest that E. murinus may specifically target mineral licks due to high prey concentration. We believe this is the first report of a reptile actively seeking prey at mineral licks. Our observations indicate that E. murinus actively seeks areas with higher prey concentration.

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南方绿蟒（Eunectes murinus）是否会在秘鲁东南部寻找猎物高度集中的地区？

尽管早在一个多世纪前就对E. murinus的行为进行了广泛描述，但对E. murinus捕食行为的观察却很少见。一些证据表明，它在捕食时可能会瞄准目标地点。我们报告了秘鲁马尔多纳多港附近一个地点发生的六起牲畜掠食事件的细节。此外，我们还比较了三条被无线电标记的蛇的位置和已知的舔矿石地点，并描述了一条被无线电标记的蛇与猎物足迹的关系。我们对矿斑蛇捕食行为的观察以及无线电标记个体与矿斑蛇的关系表明，由于猎物高度集中，鄂氏矿斑蛇可能会专门捕食矿斑。我们认为这是首次报道爬行动物在矿斑上主动寻找猎物。我们的观察结果表明，E. murinus会主动寻找猎物浓度较高的区域。

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来源期刊

Food Webs Environmental Science-Ecology

CiteScore

2.80

自引率

5.90%

发文量