Please use this identifier to cite or link to this item:

Title: Two songbird species show subordinate responses to simulated territorial intrusions of an exotic competitor
Authors: Pereira, Pedro
Lourenço, Rui
Mota, Paulo G
Keywords: Invasões biológicas
Competição interespecífica
Issue Date: 2020
Publisher: Springer
Citation: Pereira P, Lourenço R, Mota PG (2020) Two songbird species show subordinate responses to simulated territorial intrusions of an exotic competitor. Acta Ethologica 23:143-154
Abstract: Interspecific competition is rarely assessed between exotic and distantly related native species, although these can compete for some ecological resources. Here, we assessed the occurrence of interspecific aggression resulting from direct competition between two European native songbird species (henceforth focal species), the robin Erithacus rubecula and the blackcap Sylvia atricapilla, which are potential competitors for feeding resources and behaviourally subordinate to the exotic red-billed leiothrix Leiothrix lutea. In central Portugal, this exotic species lives in sympatry with robins and blackcaps at least since 2007. We used interactive playbacks to measure the behavioural response of blackcaps and robins towards intrusions by leiothrix and a submissive, native competitor — great tit Parus major. The singing behaviour of both focal species was affected by leiothrix playback. Robins exhibited a longer latency to sing, and both species avoided singing near the loudspeaker after leiothrix playback compared with great tit playback, which generally suggests a subordinate behaviour. Regarding changes in song parameters during the playbacks, only the peak frequency of blackcaps was affected by the playback. We discuss different possibilities for the origin of such submissive behaviour in native species.
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

Files in This Item:

File Description SizeFormat
34 Pereira et al. 2020 ACTA ETHOL two songbird species show subordinate response.pdf708.54 kBAdobe PDFView/OpenRestrict Access. You can Request a copy!
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois