Direct Observation of Muskrat Feeding on Crayfish

IF 0.6 4区 环境科学与生态学 Q4 BIODIVERSITY CONSERVATION Southeastern Naturalist Pub Date : 2022-10-03 DOI:10.1656/058.021.0308
S. Adams, Rebecca L. Rosamond
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Abstract

Abstract - Ondatra zibethicus (Common Muskrat) are often considered herbivores; however, they also eat animal matter, especially mussels, which comprise a considerable part of their diet in some populations. Common Muskrats also feed on crayfish (Astacoidea), although such behavior is poorly documented. On 21 April 2022, we observed a Common Muskrat repeatedly catching crayfish (Cambaridae) and carrying them to its den. The site in the Coldwater River National Wildlife Refuge, Quitman County, MS, consisted of a ditch with a water-control structure on the edge of a waterfowl impoundment being dewatered. The consumption of crayfish by a Common Muskrat during a time when vegetation was presumably less available has important ramifications for the management of both species.
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麝鼠捕食小龙虾的直接观察
摘要- Ondatra zibethicus (Common Muskrat)通常被认为是食草动物;然而,它们也吃动物,尤其是贻贝,在一些种群中,贻贝占它们饮食的相当一部分。普通的麝鼠也以小龙虾(astaco总科)为食,尽管这种行为很少被记录。2022年4月21日,我们观察到一只普通麝鼠反复捕捉小龙虾(螯虾科)并将它们带到巢穴。这个地点位于美国密西西比州奎特曼县的冷水河国家野生动物保护区,在水禽蓄水池的边缘有一条沟渠和一个水控制结构,正在脱水。普通麝鼠在植被可能较少的时候食用小龙虾,这对两个物种的管理都有重要的影响。
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来源期刊
Southeastern Naturalist
Southeastern Naturalist 环境科学-生态学
CiteScore
1.20
自引率
16.70%
发文量
31
审稿时长
18-36 weeks
期刊介绍: The Southeastern Naturalist covers all aspects of the natural history sciences of terrestrial, freshwater, and marine organisms and the environments of the southeastern portion of North America, roughly bounded from North Carolina south to Florida, west to Texas, north to Oklahoma, and east back to North Carolina. Manuscripts based on field studies outside of this region that provide information on species within this region may be considered at the Editor’s discretion.
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