黑耳负鼠（Didelphis aurita）对大基斯卡迪（Pitangus sulphuratus）和水鼠（Nectomys squamipes）的捕食行为

IF 0.8 4区生物学 Q3 ZOOLOGY

Mammalia Pub Date : 2023-12-21 DOI:10.1515/mammalia-2023-0084

Guilherme Machado, L. Fischer, Carlos Henrique de-Oliveira-Nogueira, Wendel Dias Constantino, Amanda Braga, Caryne Braga

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引用次数: 0

摘要

摘要了解一个物种的捕食行为对其生态作用至关重要。人们对有袋类动物Didelphis aurita的捕食行为知之甚少。在此，我们介绍了两个案例，以揭示其机会主义的本质：一只负鼠奋力寻找并攻击一只无法移动的幼鸟，这表明了嗅觉探测和视觉限制；还有一只负鼠携带着一只虚弱的老鼠，老鼠身上寄生着四只吹蝇幼虫。这些事件强化了 D. aurita 攻击衰弱脊椎动物的机会主义行为。

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Predation of the black-eared opossum (Didelphis aurita) on the great kiskadee (Pitangus sulphuratus) and the water rat (Nectomys squamipes)

Abstract Understanding the predatory behavior of a species is critical to its ecological role. Little is known about the predatory behavior of the marsupial Didelphis aurita. Here, we present two cases to shed light on its opportunistic nature: an opossum struggling to locate and attack an immobile juvenile bird, indicating olfactory detection and visual constraints, and an opossum carrying a weakened rat that was host of four blowfly larvae. These events reinforce D. aurita’s opportunistic behavior in attacking debilitated vertebrates.

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来源期刊

Mammalia 生物-动物学

CiteScore

2.20

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Mammalia is an international, multidisciplinary, bimonthly journal devoted to the inventory, analysis and interpretation of mammalian diversity. It publishes original results on all aspects of the systematics and biology of mammals with a strong focus on ecology, including biodiversity analyses, distribution habitats, diet, predator-prey relationships, competition, community analyses and conservation of mammals. The journal also accepts submissions on sub-fossil or recently extinct mammals.