From the eye of the albatrosses: a bird-borne camera shows an association between albatrosses and a killer whale in the Southern Ocean.
From the eye of the albatrosses: a bird-borne camera shows an association between albatrosses and a killer whale in the Southern Ocean.
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从信天翁的眼中：鸟式摄像机在南大洋中显示了信天翁与杀手鲸之间的关联。
DOI：
10.1371/journal.pone.0007322
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发表时间：
2009-10-07
期刊：
影响因子：
3.7
通讯作者：
Trathan PN
中科院分区：
文献类型：
--
作者：
Sakamoto KQ;Takahashi A;Iwata T;Trathan PN
信天翁飞越数百公里飞越开阔的海洋，寻找猎物并以其为食。尽管关于信天翁觅食行为的研究越来越多，但人们对信天翁实际上是如何定位猎物的知之甚少。在这里，我们展示了我们在自由活动的黑眉信天翁(Thalassarche Blackophrys)身上首次部署的动物携带相机和深度数据记录器的结果。这些摄像机拍摄的静态图像显示，一些信天翁积极追随虎鲸(Orcinus Orca)，可能是为了捕食这种潜水捕食者留下的食物残渣。摄像机图像和深度剖面显示，这些鸟只是偶尔潜水，但当其他鸟类或虎鲸在场时，它们会积极潜水。这种与潜水捕食者或其他鸟类的联系可能在一定程度上解释了信天翁如何在表面上没有特点的海洋中更有效地寻找猎物，而最低限度地需要进行耗费精力的潜水或登陆活动。
Albatrosses fly many hundreds of kilometers across the open ocean to find and feed upon their prey. Despite the growing number of studies concerning their foraging behaviour, relatively little is known about how albatrosses actually locate their prey. Here, we present our results from the first deployments of a combined animal-borne camera and depth data logger on free-ranging black-browed albatrosses (Thalassarche melanophrys). The still images recorded from these cameras showed that some albatrosses actively followed a killer whale (Orcinus orca), possibly to feed on food scraps left by this diving predator. The camera images together with the depth profiles showed that the birds dived only occasionally, but that they actively dived when other birds or the killer whale were present. This association with diving predators or other birds may partially explain how albatrosses find their prey more efficiently in the apparently ‘featureless’ ocean, with a minimal requirement for energetically costly diving or landing activities.
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影响因子：
2.5
作者：
Croxall, JP;Reid, K;Prince, PA
通讯作者：
Prince, PA
影响因子：
2.8
作者：
Nevitt, G;Reid, K;Trathan, P
通讯作者：
Trathan, P
影响因子：
2.1
作者：
Xavier, JC;Croxall, JP;Reid, K
通讯作者：
Reid, K
影响因子：
3.7
作者：
Sakamoto KQ;Sato K;Ishizuka M;Watanuki Y;Takahashi A;Daunt F;Wanless S
通讯作者：
Wanless S
DOI：
10.1073/pnas.0709047105
发表时间：
2008-03-25
影响因子：
11.1
作者：
Nevitt, Gabrielle A.;Losekoot, Marcel;Weimerskirch, Henri
通讯作者：
Weimerskirch, Henri