Living together: Waterbirds distinguish between local fishermen and casual outfits
Living together: Waterbirds distinguish between local fishermen and casual outfits
复制标题
共同生活：水鸟区分当地渔民和休闲服装
DOI：
10.1016/j.gecco.2020.e00994
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发表时间：
2020-06-01
影响因子：
4
通讯作者：
Liang, Wei
中科院分区：
文献类型：
--
作者：
Feng, Changzhang;Liang, Wei
全球人口的不断增长以及对自然资源的持续开发利用，已对全球鸟类种群产生了强烈影响。因此，对于鸟类而言，识别哪些活动具有威胁性、哪些没有，这一点至关重要。这种能力能够加快某些物种对不断变化的环境的适应。然而，鲜有研究探索野生鸟类识别人类个体的能力。本研究旨在探究水鸟区分当地渔民与外来者的能力。具体而言，在渔民的工作场所——潮间带开展了两项实验，分别由一人身着便装和渔民服装，测量水鸟的起飞距离（FIDs，即猎物在捕食者靠近时开始逃离的距离）。八种水鸟看到渔民服装和便装后的起飞距离存在显著差异。与便装相比，水鸟对渔民服装的起飞距离明显更短。因此，水鸟能够根据外观差异区分陌生（有威胁）和熟悉（无威胁）的人类个体。我们的研究结果对鸟类保护和生态旅游具有重要意义。（C）2020作者。由爱思唯尔出版社出版。
Increasing global human population and constant exploitation and utilization of natural resources have strongly impacted bird populations worldwide. Thus, it is very important for birds to recognize which activities are threatening and which are not. This ability could accelerate the adaptation of certain species to the changing environment. However, few studies have explored the ability of wild birds to recognize human individuals. This study aimed to investigate the ability of waterbirds to identify local fishermen from outsiders. Specifically, two experiments were conducted in the workplace of fishermen, a tidal flat, where a person was dressed up in a casual outfit and a fisherman outfit, respectively, to measure the flight initiation distances (FIDs, the distance at which a prey starts to flee at the approach of a predator) of waterbirds. The FIDs of eight species of waterbirds were significantly different after seeing the fisherman outfit versus the casual outfit. Compared to the casual outfit, the FIDs of birds to the fishermen outfit were noticeably shorter. Thus, waterbirds are able to distinguish between unknown (threatening) and known (nonthreatening) human individuals based on the differences in appearance. Our results are of importance for bird conservation and ecotourism. (C) 2020 The Authors. Published by Elsevier B.V.