Behavioral Ecology and Sociobiology

, 63:63

Flight distance of urban birds, predation, and selection for urban life

Original Paper

DOI: 10.1007/s00265-008-0636-y

Cite this article as:
Møller, A.P. Behav Ecol Sociobiol (2008) 63: 63. doi:10.1007/s00265-008-0636-y

Abstract

Numerous species have adapted to humans, especially invasive species associated with humans in towns and cities. Short flight distances of populations adapted to urban environments reflect changes in behavior and physiology, reflecting phenotypic plasticity or evolution. Here, I tested the hypothesis that the decrease in flight distance to a potential predator (an approaching human) reflected adaptation to urbanization, using a data set of flight distances of 44 common species of European birds in different stages of adaptation to urban environments. Urban populations had consistently shorter flight distances than rural populations of the same species. Variation in relative flight distance of urban populations was predicted by the number of generations since urbanization, as expected by a gradual process of adaptation. Furthermore, species with relatively large populations in urban environments would be an indication of local adaptation to urban environments. Relative flight distance of urban population was shorter for species with large populations in urban compared to rural habitats. Species that had adapted to urban environments as shown by short flight distances were less susceptible to predation by the European sparrowhawk Accipiter nisus than species with relatively long flight distances in urban populations. These findings provide evidence consistent with the hypothesis that recent changes in the tameness of urban birds, as reflected by their relatively short flight distances, is an adaptation to the novel urban environment.

Keywords

Flight distanceInvasionsLife historyUrbanization

Supplementary material

265_2008_636_MOESM1_ESM.doc (166 kb)
ESM 1(DOC 169 KB)

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Laboratoire de Parasitologie Evolutive, CNRS UMR 7103Université Pierre et Marie CurieParis Cedex 05France