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首页> 外文期刊>Journal of Field Ornithology >Foraging niche shifts in mixed-species flocks of tits in Korea
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Foraging niche shifts in mixed-species flocks of tits in Korea

机译:在韩国混合物种的山雀中寻找利基变化

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摘要

We describe observational evidence of niche shifts of smaller species in response to the presence of larger species in flocks of tits in Korea. Overall, in this guild of tits there was more aggression directed from larger toward smaller species than vice versa. At the guild level, there was a significant effect of the presence of larger species on vertical rather than horizontal distribution of smaller species. For example, in the presence of the dominant P. varius, the subordinate P. major foraged at lower heights than in the absence of P. varius. This is the first observation of foraging niche shifts in P. major, a typical dominant in European flocks, in response to the presence of larger P. varius, absent in European flocks of tits.
机译:我们描述了在韩国山雀群中较小物种响应于较大物种的存在而进行的生态位转变的观测证据。总体而言,在这个山雀行会中,从较大物种到较小物种的攻击更多,反之亦然。在行会一级,较大物种的存在对较小物种的垂直而不是水平分布具有重大影响。例如,在存在优势的P. varius的情况下,下级的P. major的觅食的高度要比不存在P. varius的更低。这是对欧洲大群中典型的优势种P. major觅食小生境转变的首次观察,以响应欧洲大群山雀中不存在的更大的P. varius。

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