两种小型雀形目:小白喉和红雀同卵寄生的首次记录

IF 0.4 4区 环境科学与生态学 Q4 ECOLOGY Polish Journal of Ecology Pub Date : 2021-12-27 DOI:10.3161/15052249PJE2021.69.2.005
A. Wuczyński, L. Hałupka, Aleksandra Maroń
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引用次数: 0

摘要

摘要本文首次记录了两种小型雀形目动物——小白喉Sylvia curruca和红雀Linaria cannabina可能存在的同种幼虫寄生现象。2018年,我们发现了两个不同寻常的大窝,每个物种一个(分别是8个和9个蛋),都含有两种不同的蛋形态,颜色不同。进一步详细分析蛋的形态和育雏物候(在白喉鸟中)表明,每个巢中的蛋是由不同的雌性产下的。令人惊讶的是,两个看似完整大小的卵都在两个巢中产下,这种模式在雀形目的同卵寄生中是不寻常的,雀形目的巢通常由单个卵寄生。因此,讨论了同种幼虫寄生的替代方法。我们认为,如果仔细使用传统的实地方法,可能足以记录偶尔观察中记录的幼虫寄生情况。我们最后得出结论,由于同卵寄生导致的卵群扩大,可能比预期的更频繁,但它们可能经常被忽视。
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First Records of Conspecific Brood Parasitism in Two Species of Small Passerines: Lesser Whitethroat and Common Linnet
ABSTRACT We provide the first records of possible conspecific brood parasitism in the lesser whitethroat Sylvia curruca and the common linnet Linaria cannabina, two species of small passerines. In 2018 we found two unusually large clutches, one for each species (8 and 9 eggs, respectively), both containing two distinct egg morphs differing in coloration. Further detailed analysis of egg morphology and brood phenology (in the whitethroat) suggested that the eggs in each nest had been laid by different females. Surprisingly, two seemingly full sized clutches were laid in both nests, a pattern that is unusual in conspecific brood parasitism in passerines, whose nests are typically parasitized with single eggs. Alternatives to conspecific brood parasitism are therefore discussed. We argue that traditional field-based methods, when carefully used, may be sufficient to document brood parasitism recorded during occasional observations. We finally conclude that enlarged broods, resulting from conspecific brood parasitism, are probably more frequent than expected, but they may be often overlooked.
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来源期刊
Polish Journal of Ecology
Polish Journal of Ecology 环境科学-生态学
CiteScore
1.10
自引率
0.00%
发文量
9
审稿时长
18-36 weeks
期刊介绍: POLISH JOURNAL OF ECOLOGY (formerly Ekologia polska) publishes original scientific research papers dealing with all aspects of ecology: both fundamental and applied, physiological ecology, evolutionary ecology, ecology of population, community, ecosystem, landscape as well as global ecology. There is no bias regarding taxons, ecosystems or geographical regions.
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