BMC Ecol 2017 08 10;17(1):29. Epub 2017 Aug 10.
Department of Biological Sciences, Center for Wildlife Ecology, Simon Fraser University, Burnaby, BC, Canada.
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PLoS One 2014 14;9(5):e97152. Epub 2014 May 14.
Center for Wildlife Ecology, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada.
Over the course of the annual cycle, migratory bird populations can be impacted by environmental conditions in regions separated by thousands of kilometers. We examine how climatic conditions during discrete periods of the annual cycle influence the demography of a nearctic-neotropical migrant population of yellow warblers (Setophaga petechia), that breed in western Canada and overwinter in Mexico. We demonstrate that wind conditions during spring migration are the best predictor of apparent annual adult survival, male arrival date, female clutch initiation date and, via these timing effects, annual productivity. Read More
Biol Lett 2013 6;9(6):20130669. Epub 2013 Nov 6.
British Trust for Ornithology, The Nunnery, , Thetford, Norfolk IP24 2PU, UK.
Long-distance migrants may be particularly vulnerable to climate change on both wintering and breeding grounds. However, the relative importance of climatic variables at different stages of the annual cycle is poorly understood, even in well-studied Palaearctic migrant species. Using a national dataset spanning 46 years, we investigate the impact of wintering ground precipitation and breeding ground temperature on breeding phenology and clutch size of 19 UK migrants. Read More
PLoS One 2013 8;8(4):e59110. Epub 2013 Apr 8.
Department of Migration and Immuno-ecology, Max-Planck-Institute for Ornithology, Radolfzell, Germany.
Weather affects the demography of animals and thus climate change will cause local changes in demographic rates. In birds numerous studies have correlated demographic factors with weather but few of those examined variation in the impacts of weather in different seasons and, in the case of migrants, in different regions. Using capture-recapture models we correlated weather with apparent survival of seven passerine bird species with different migration strategies to assess the importance of selected facets of weather throughout the year on apparent survival. Read More
Ecology 2011 Sep;92(9):1789-98
Smithsonian Migratory Bird Center, National Zoological Park, Washington, DC 20008, USA.
Geographic variation in the population dynamics of a species can result from regional variability in climate and how it affects reproduction and survival. Identifying such effects for migratory birds requires the integration of population models with knowledge of migratory connectivity between breeding and nonbreeding areas. We used Bayesian hierarchical models with 26 years of Breeding Bird Survey data (1982-2007) to investigate the impacts of breeding- and nonbreeding-season climate on abundance of American Redstarts (Setophaga ruticilla) across the species range. Read More