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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Personality influences foraging of a seabird under contrasting environmental conditions
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Personality influences foraging of a seabird under contrasting environmental conditions

机译：在对比环境条件下，人格影响海鸟的觅食

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摘要

Personality is relevant in shaping the way animals respond to environmental conditions. Some personality traits may be disadvantageous under non-optimal environmental conditions, reducing foraging success and breeding performance in the long term. In this study we tested whether individual personality plays a role in determining shifts in seabirds' foraging behaviour and habitat use when environmental conditions are poor. We used GPS-tracking information from chick-rearing Cory's Shearwaters (Calonectris borealis) during eight consecutive years. Boldness was measured by the response of the tracked individuals to a novel object presented at their nest. Foraging habitat was identified as the environment within geographic points where birds were flying at low speed with high turning rates. We found that bold individuals displayed more foraging habitat consistency and boldness influenced foraging habitat during years of poor environmental conditions. Bold individuals tended to remain closer to the colony under poor environmental conditions, while shy individuals dispersed considerably farther from the colony. However, there was no influence of the personality on breeding success, and the whole population tended to have a lower probability of breeding success during years of poor conditions. During adverse environmental conditions, shy birds shifted habitat, probably as consequence of exploitative competition with the bold birds, but this has no effect on the birds' ability to successfully raise a chick.
机译：性格在塑造动物对环境条件的造成方面相关。在非最佳环境条件下，一些个性特征可能是不利的，从长远来看，减少了觅食成功和育种性能。在这项研究中，我们测试了各个个性是否在环境条件较差时在确定海鸟的觅食行为和栖息地使用时的作用。我们在连续八年中使用了小鸡饲养的Cory的Cory Shearwaters（Calonectris Borealis）的GPS跟踪信息。通过跟踪个人对巢穴呈现的新物体的响应来衡量大胆。觅食栖息地被确定为地理点内的环境，鸟类以低速度飞行，高轮率。我们发现大胆的人显示出更多的觅食栖息地一致性和粗体，影响了环境条件不良期间的觅食栖息地。在贫瘠的环境条件下，大胆的人往往更接近殖民地，而害羞的人在大大从殖民地上分散。然而，对育种成功的个性没有影响，并且整个人口往往在贫困条件下育种成功的竞争概率较低。在不利的环境条件下，害羞的鸟类转移栖息地，可能是由于与大胆的鸟类的剥削竞争的结果，但这对鸟类成功养成小鸡的能力没有影响。

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