Common cuckoo females remove more conspicuous eggs during parasitism.
Common cuckoo females remove more conspicuous eggs during parasitism.
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普通杜鹃雌性在寄生期间会取出更显眼的卵
DOI：
10.1098/rsos.201264
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发表时间：
2021-01
影响因子：
3.5
通讯作者：
Møller AP
中科院分区：
文献类型：
--
作者：
Wang L;Zhang Y;Liang W;Møller AP
鸟类专性育雏寄生虫通过移除已经访问过鸟巢的杜鹃的蛋来获得优势，这可以增加它们后代的生存机会。相反，为了防止它们的蛋被下一只寄生杜鹃叼走，它们需要采取一些预防措施。卵拟态和卵隐藏是防止被寄生的卵被另一种寄生杜鹃拾起的两种可选策略。在这里，我们测试是否有卵隐假说具有预防作用时，常见的杜鹃（Cuculus canorus）寄生在他们的东方苇莺（Acrocephalus orientalis）主机。设计两个不同隐睾效应的实验组，诱导普通杜鹃产卵，观察其在寄生过程中是否选择性地拾取隐睾水平低的实验卵。我们的研究结果支持了卵隐藏假说，观察杜鹃明显倾向于选择更明显的白色模型卵。这表明，即使在开放的巢中，足够隐蔽的卵也可以保护杜鹃在寄生期间不被雌性杜鹃拾起，以增加自己寄生卵的生存机会。
Avian obligate brood parasites gain an advantage by removing the eggs of the cuckoos who have already visited the nest, which can increase the chances of survival for their offspring. Conversely, to prevent their eggs from being picked up by the next parasitic cuckoo, they need to take some precautions. Egg mimicry and egg crypsis are two alternative strategies to prevent the parasitized egg from being picked up by another parasitic cuckoo. Here, we tested whether the egg crypsis hypothesis has a preventative effect when common cuckoos (Cuculus canorus) parasitize their Oriental reed warbler (Acrocephalus orientalis) hosts. We designed two experimental groups with different crypsis effects to induce common cuckoos to lay eggs and observed whether the cuckoos selectively picked up the experimental eggs with low crypsis levels in the process of parasitism. Our results supported the egg crypsis hypothesis; the observed cuckoos significantly preferred to select the more obvious white model eggs. This shows that even in an open nest, eggs that are adequately hidden can also be protected from being picked up by cuckoo females during parasitism so as to increase the survival chance of their own parasitic eggs.
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影响因子：
0.7
作者：
Geltsch, Nikoletta;Ban, Miklos;Moskat, Csaba
通讯作者：
Moskat, Csaba
影响因子：
3.1
作者：
SCOTT, DM;WEATHERHEAD, PJ;ANKNEY, CD
通讯作者：
ANKNEY, CD
DOI：
10.1098/rspb.2014.1014
发表时间：
2014-10-07
影响因子：
4.7
作者：
Gloag, Ros;Keller, Laurie-Anne;Langmore, Naomi E.
通讯作者：
Langmore, Naomi E.
影响因子：
2.1
作者：
Cherry, M. I.;Bennett, A. T. D.;Moskat, C.
通讯作者：
Moskat, C.
影响因子：
2.5
作者：
DAVIES, NB;BROOKE, MD
通讯作者：
BROOKE, MD