High urban population density of birds reflects their timing of urbanization.

Oecologia
Anders P MøllerPiotr Tryjanowski

Abstract

Living organisms generally occur at the highest population density in the most suitable habitat. Therefore, invasion of and adaptation to novel habitats imply a gradual increase in population density, from that at or below what was found in the ancestral habitat to a density that may reach higher levels in the novel habitat following adaptation to that habitat. We tested this prediction of invasion biology by analyzing data on population density of breeding birds in their ancestral rural habitats and in matched nearby urban habitats that have been colonized recently across a continental latitudinal gradient. We estimated population density in the two types of habitats using extensive point census bird counts, and we obtained information on the year of urbanization when population density in urban habitats reached levels higher than that of the ancestral rural habitat from published records and estimates by experienced ornithologists. Both the difference in population density between urban and rural habitats and the year of urbanization were significantly repeatable when analyzing multiple populations of the same species across Europe. Population density was on average 30 % higher in urban than in rural habitats, although densit...Continue Reading

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Citations

May 6, 2014·Oecologia·Anders Pape MøllerPiotr Tryjanowski
May 20, 2014·Ecology Letters·Daniel SolOriol Lapiedra
May 25, 2015·Environmental Science and Pollution Research International·Piotr TryjanowskiDariusz Wysocki
Jan 27, 2015·Global Change Biology·Tabea Turrini, Eva Knop
Feb 20, 2015·Oecologia·Anders Pape MøllerPiotr Tryjanowski
Jun 19, 2015·PloS One·Piotr TryjanowskiDariusz Wysocki
Oct 17, 2018·Current Zoology·Anders Pape Møller, Mario Díaz
Nov 17, 2016·Animal Cognition·Andrea S GriffinThomas Bugnyar
Nov 8, 2018·Current Zoology·Anders Pape MøllerUNKNOWN Handling editor: Ximena Nelson
Mar 1, 2019·Scientific Reports·Álvaro LunaMartina Carrete
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Filip Jaroš
Jul 17, 2021·The Science of the Total Environment·Chloe PeneauxAndrea S Griffin

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