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Seasonality predicts egg size better than nesting habitat in a precocial shorebird
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SYSNO ASEP 0519207 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Seasonality predicts egg size better than nesting habitat in a precocial shorebird Author(s) Kubelka, Vojtěch (UEK-B) ORCID
Sládeček, M. (CZ)
Zámečník, V. (CZ)
Vozabulová, E. (CZ)
Šálek, M. (CZ)Source Title Ardea. - : Nederlandse Ornithologische Unie - ISSN 0373-2266
Roč. 107, č. 3 (2019), s. 239-250Number of pages 12 s. Language eng - English Country NL - Netherlands Keywords clutch size ; chick survival, ; egg size ; nesting habitat ; northern lapwing ; precocial offspring ; predation ; seasonal timing ; vanellus vanellus ; wader Subject RIV EH - Ecology, Behaviour OECD category Ornithology R&D Projects LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UEK-B - RVO:86652079 UT WOS 000518188800003 EID SCOPUS 85081304386 DOI 10.5253/arde.v107i3.a4 Annotation Egg size represents a fundamental predictor of chick mass and body condition. Chicks from bigger eggs have significantly increased survival, especially in precocial species, where chicks must forage for themselves and cope with environmental threats, such as bad weather or predators. Therefore, our understanding of the factors influencing egg size is crucial both from the perspective of their breeding ecology as well as of their conservation. However, studies simultaneously addressing multiple factors and quantifying their influence on egg size in large samples are rare. Here, we test the effect of seasonality, clutch size and nesting habitat on egg size, measured as volume, in a ground-nesting shorebird, the Northern Lapwing Vanellus vanellus, using a sample of 4384 eggs from 1125 clutches in South Bohemia, Czech Republic, during the period between 1988 and 2018. We report a significant decline in egg size over the breeding season, on average bigger eggs in larger clutches with a significant difference between 2-egg and 4-egg clutches, and no direct effect of nesting habitat. From our review of the same predictors across 15 Northern Lapwing populations throughout Europe it is apparent that replacement or late clutches have on average 3–7% smaller eggs than first or early clutches. Nesting habitat only rarely affects egg size and there are no significant differences in egg size between 3-egg and 4-egg clutches. Earlier studies showed that chicks hatching from bigger eggs early in the breeding season performed better, and that there was higher food abundance available for chicks at that time... Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2020 Electronic address https://bioone.org/journals/Ardea/volume-107/issue-3/arde.v107i3.a4/Seasonality-Predicts-Egg-Size-Better-Than-Nesting-Habitat-in-a/10.5253/arde.v107i3.a4.short
Number of the records: 1