Double-brooded great tits (<Emphasis Type="Italic">Parus major</Emphasis>) in Mediterranean oak habitats: Do first broods always perform better than second broods? |
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Authors: | M M Lambrechts A Rieux M -J Galan M Cartan-Son P Perret J Blondel |
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Institution: | (1) Centre d’Ecologie Fonctionnelle et Evolutive (UMR 5175 du CNRS), 1919 route de Mende, F-34293 Montpellier cedex 5, France |
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Abstract: | Although mistimed reproduction (i.e., time-lag between peak food supply and offspring food demand) has been attributed to
habitat modifications or climate change in recent avian investigations, earlier breeding parents have higher reproductive
success in many habitats. Here we compare first and second broods in great tits (Parus major L.) from two Mediterranean oak habitats differing significantly in the timing (about 5 weeks), but not the amount of caterpillar
supply required to rear chicks. The study indicates that both the extent of mistimed reproduction and the breeding date per se influence breeding performance in this study system.
The text was submitted by the authors in English. |
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Keywords: | Great tit Parus major L oak mismatched reproduction global change |
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