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Microhabitat Selection of the Introduced Bullfrogs (Rana catesbeiana) in Paddy Fields in Eastern Japan

机译:日本东部稻田中引入的牛蛙(蛙蛙)的微生境选择

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摘要

Introduction of the bullfrog Rana catesbeiana is considered detrimental to native fauna. However, methods for controlling bullfrog populations have not yet been established. Managing habitats to resist invasion is important for alien species that are difficult to control directly. We surveyed habitat characteristics of paddy fields in eastern Japan inhabited by bullfrogs and analyzed their microhabitat selection. Our results suggest that adult bullfrogs prefer microhabitat with deep water. Therefore, it may be possible to prevent invasion of adults by keeping water shallow. Managing local habitats to prevent immigration may reduce the spread of bullfrogs on larger spatial scales.
机译:牛蛙Rana catesbeiana的引进被认为对本地动物有害。但是,尚未建立控制牛蛙种群的方法。对于难以直接控制的外来物种,管理栖息地以抵抗入侵很重要。我们调查了日本东部牛蛙栖息的稻田的生境特征,并分析了它们的微生境选择。我们的结果表明,成年牛蛙更喜欢深水微栖息地。因此,有可能通过保持水浅来防止成年人入侵。管理当地栖息地以防止移民可能会减少牛蛙在较大空间范围内的扩散。

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