Behav Ecol Sociobiol (2017) 71:101 DOI 10.1007/s00265-017-2329-x REVIEW Does habitat structural complexity influence the frequency of extra-pair paternity in birds? 1 2 3 Carlos Biagolini-Jr. & David F. Westneat & Mercival R. Francisco Received: 11 April 2017 /Revised: 11 May 2017 /Accepted: 15 May 2017 Springer-Verlag Berlin Heidelberg 2017 Abstract ble explanations for the lack of support are (i) trade-offs be- Several studies have suggested that vegetation structural com- tween the possibilities for females to escape from male surveil- plexity can influence the frequency of extra-pair copulations, lance and the difficulty to encounter neighbor extra-pair males especially by reducing mating-guarding efficiency. Here we by visual orientation in areas with dense vegetation; (ii) the investigate if habitat structural complexity affects broad pat- predominance of passerine birds in most categories of vegeta- terns of extra-pair paternity (EPP) and extra-pair broods (pro- tion complexity, which are small and agile, such that even less portion of nests presenting at least one extra-pair young— vegetated areas may allow extra-pair copulation to be EPB), specifically testing the prediction that species living in concealed; (iii) environmental components other than vegeta- habitats with denser vegetation would have a higher frequency tion, such as rocks and cliffs, also
Behavioral Ecology and Sociobiology – Springer Journals
Published: Jun 16, 2017
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