Document Detail


Climate change, breeding date and nestling diet: how temperature differentially affects seasonal changes in pied flycatcher diet depending on habitat variation.
MedLine Citation:
PMID:  22356622     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
1. Climate warming has led to shifts in the seasonal timing of species. These shifts can differ across trophic levels, and as a result, predator phenology can get out of synchrony with prey phenology. This can have major consequences for predators such as population declines owing to low reproductive success. However, such trophic interactions are likely to differ between habitats, resulting in differential susceptibility of populations to increases in spring temperatures. A mismatch between breeding phenology and food abundance might be mitigated by dietary changes, but few studies have investigated this phenomenon. Here, we present data on nestling diets of nine different populations of pied flycatchers Ficedula hypoleuca, across their breeding range. This species has been shown to adjust its breeding phenology to local climate change, but sometimes insufficiently relative to the phenology of their presumed major prey: Lepidoptera larvae. In spring, such larvae have a pronounced peak in oak habitats, but to a much lesser extent in coniferous and other deciduous habitats. 2. We found strong seasonal declines in the proportions of caterpillars in the diet only for oak habitats, and not for the other forest types. The seasonal decline in oak habitats was most strongly observed in warmer years, indicating that potential mismatches were stronger in warmer years. However, in coniferous and other habitats, no such effect of spring temperature was found. 3. Chicks reached somewhat higher weights in broods provided with higher proportions of caterpillars, supporting the notion that caterpillars are an important food source and that the temporal match with the caterpillar peak may represent an important component of reproductive success. 4. We suggest that pied flycatchers breeding in oak habitats have greater need to adjust timing of breeding to rising spring temperatures, because of the strong seasonality in their food. Such between-habitat differences can have important consequences for population dynamics and should be taken into account in studies on phenotypic plasticity and adaptation to climate change.
Authors:
Claudia Burger; Eugen Belskii; Tapio Eeva; Toni Laaksonen; Marko Mägi; Raivo Mänd; Anna Qvarnström; Tore Slagsvold; Thor Veen; Marcel E Visser; Karen L Wiebe; Chris Wiley; Jonathan Wright; Christiaan Both
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-22
Journal Detail:
Title:  The Journal of animal ecology     Volume:  -     ISSN:  1365-2656     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376574     Medline TA:  J Anim Ecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. Journal of Animal Ecology © 2012 British Ecological Society.
Affiliation:
Animal Ecology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, PO Box 11103, 9700 CC Groningen, the Netherlands Institute for Plant & Animal Ecology, Russian Academy of Science, Ekaterinburg 620144, Russia Section of Ecology, University of Turku, Turku 20014, Finland Finnish Museum of Natural History, PO Box 17, University of Helsinki, FI-00014 Helsinki, Finland Department of Zoology, Institute for Ecology & Earth Sciences, University of Tartu, EE-51014 Tartu, Estonia Evolutionary Biology Center, Department of Animal Ecology, Norbyvägen 18D, SE-752 36 Uppsala, Sweden Department of Biology, CEES, University of Oslo, N-0316 Oslo, Norway Centre for Ecology & Conservation, College of Life and Environmental Sciences, University of Exeter, Cornwall Campus, Penryn TR10 9EZ, UK Biodiversity Research Centre, University of British Columbia, Vancouver, BC V6T 1Z4, Canada Netherlands Institute of Ecology (NIOO-KNAW), PO Box 50, 6700 AB Wageningen, the Netherlands Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada Department of Neurobiology & Behavior, Cornell University, Ithaca, NY 14853, USA Department of Biology, Norwegian University of Science & Technology (NTNU), Trondheim, Norway.
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