4.5 Article

Complex associations of weather conditions with reproductive performance in urban population of a common waterbird

期刊

INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
卷 66, 期 6, 页码 1163-1172

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SPRINGER
DOI: 10.1007/s00484-022-02266-6

关键词

Temperature; Precipitation; Eurasian coot; Fulica atra; Reproductive performance; Urbanization

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Weather conditions have significant impacts on reproductive output of Eurasian coots, with temperature showing contrasting effects at different chick-rearing stages. Contrary to expectations, there is a positive relationship between early chick-rearing precipitation and reproductive output in urban coots. This study highlights the complexity of associations between weather conditions and animal reproductive performance in urban wildlife.
Weather conditions are recognized as one of key determinants of animal reproductive performance; however, the effect of weather on breeding success can be modulated by different features of breeding habitat. Constantly expanding urban areas cause significant changes in land cover and environmental conditions, but whether and how urban landscape mitigates weather impact on animal fitness remains little explored. The aim of this study was to investigate the association between weather parameters and reproductive performance in a reed-nesting waterbird species, the Eurasian coot Fulica atra. For this purpose, we performed a long-term monitoring of an urban coot population from central Poland, collecting data for over 400 breeding events. The results indicated that temperature may have contrasting effects on coot reproductive output at different stages of chick-rearing period (positive at early chick-rearing and negative at late chick-rearing). Also, contrary to our expectation, we found a positive relationship between mean daily precipitation in early chick-rearing period and reproductive output in our study population. Our study constitutes one of few examples showing how weather may affect fitness in urban wildlife and provides evidence for high complexity of associations between weather conditions and animal reproductive performance.

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