English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/123008
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Interactive effects of fearfulness and geographical location on bird population trends

AuthorsDíaz Esteban, Mario ; Cuervo, José Javier ; Grim, Tomas; Flensted-Jensen, Einar; Ibáñez-Álamo, Juan Diego; Jokimäki, Jukka; Markó, Gábor; Tryjanowski, Piotr; Møller, Anders Pape
KeywordsBreeding birds
Flight initiation distance
Latitude
Longitude
Marginality of distribution
Issue Date21-Nov-2014
PublisherOxford University Press
International Society for Behavioral Ecology
CitationBehavioral Ecology 26(3): 716-721 (2015)
AbstractAnimal populations are currently under pressure from multiple factors that include human land use and climate change. They may compensate for such effects by reducing, either by habituation or by natural selection, the distance at which they flee from humans (i.e., flight initiation distance), and this adaptation may improve their population trends. We analyzed population trends of common breeding birds in relation to flight initiation distance and geographical location (latitude, longitude, and marginality of the breeding distribution) across European countries from Finland in the north to Spain in the south while also considering other potential predictors of trends like farmland habitat, migration, body size, and brain size. We found evidence of farmland, migratory, and smaller-sized species showing stronger population declines. In contrast, there was no significant effect of relative brain size on population trends. We did not find evidence for main effects of flight initiation distance and geographical location on trends after accounting for confounding and interactive effects; instead, flight initiation distance and location interacted to generate complex spatial patterns of population trends. Trends were more positive for fearful populations northward, westward, and (marginally) toward the center of distribution areas and more negative for fearless populations toward the south, east, and the margins of distribution ranges. These findings suggest that it is important to consider differences in population trends among countries, but also interaction effects among factors, because such interactions can enhance or compensate for negative effects of other factors on population trends.
Publisher version (URL)http://dx.doi.org/10.1093/beheco/aru211
URIhttp://hdl.handle.net/10261/123008
DOI10.1093/beheco/aru211
ISSN1045-2249
E-ISSN1465-7279
Appears in Collections:(MNCN) Artículos
Files in This Item:
File Description SizeFormat 
BehavEcol 26(3) 716-721 (2015) POSTPRINT.pdf241,46 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.