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WHY MATED DUSKY WARBLERS SING SO MUCH: TERRITORY GUARDING AND MALE QUALITY ANNOUNCEMENT

WHY MATED DUSKY WARBLERS SING SO MUCH: TERRITORY GUARDING AND MALE QUALITY ANNOUNCEMENT WHY MATED DUSKY WARBLERS SING SO MUCH: TERRITORY GUARDING AND MALE QUALITY ANNOUNCEMENT by WOLFGANG FORSTMEIER 1,2,4) and THORSTEN J.S. BALSBY 3,5) ( 1 Max Planck Research Centre for Ornithology, Vogelwarte Radolfzell, Schloss Moeggingen, Schlossallee 2, D-78315 Radolfzell, Germany; 2 Theodor-Boveri-Institute, Department of Animal Ecology and Tropical Biology, Würzburg University, Biozentrum, Am Hubland, D-97074 Würzburg, Germany; 3 Department of Animal Behaviour and Centre for Sound Communication, Zoological Institute, University of Copenhagen, Tagensvej 16, DK-2200 Copenhagen N, Denmark) (Acc. 4-XII-2001) Summary The fertility announcement hypothesis states that males sing most intensively during the period of female fertility in order to assure their paternity, as females would prefer to sexually mate with males singing at a high rate. The dusky warbler ( Phylloscopus fuscatus ) is one of the species in which singing intensity clearly peaks when females are fertile. As a test of the fertility announcement hypothesis, we study why males of this species sing so much after pairing. Dusky warblers have two distinct kinds of song, an individually speciŽ c, stereotype song type (S-song) and a highly variable song type (V-song). S-song is used as an individually recognisable signature to mark the claimed territory area. Playback experiments indicate that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

WHY MATED DUSKY WARBLERS SING SO MUCH: TERRITORY GUARDING AND MALE QUALITY ANNOUNCEMENT

Behaviour , Volume 139 (1): 23 – Jan 1, 2002

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References (42)

Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/15685390252902300
Publisher site
See Article on Publisher Site

Abstract

WHY MATED DUSKY WARBLERS SING SO MUCH: TERRITORY GUARDING AND MALE QUALITY ANNOUNCEMENT by WOLFGANG FORSTMEIER 1,2,4) and THORSTEN J.S. BALSBY 3,5) ( 1 Max Planck Research Centre for Ornithology, Vogelwarte Radolfzell, Schloss Moeggingen, Schlossallee 2, D-78315 Radolfzell, Germany; 2 Theodor-Boveri-Institute, Department of Animal Ecology and Tropical Biology, Würzburg University, Biozentrum, Am Hubland, D-97074 Würzburg, Germany; 3 Department of Animal Behaviour and Centre for Sound Communication, Zoological Institute, University of Copenhagen, Tagensvej 16, DK-2200 Copenhagen N, Denmark) (Acc. 4-XII-2001) Summary The fertility announcement hypothesis states that males sing most intensively during the period of female fertility in order to assure their paternity, as females would prefer to sexually mate with males singing at a high rate. The dusky warbler ( Phylloscopus fuscatus ) is one of the species in which singing intensity clearly peaks when females are fertile. As a test of the fertility announcement hypothesis, we study why males of this species sing so much after pairing. Dusky warblers have two distinct kinds of song, an individually speciŽ c, stereotype song type (S-song) and a highly variable song type (V-song). S-song is used as an individually recognisable signature to mark the claimed territory area. Playback experiments indicate that

Journal

BehaviourBrill

Published: Jan 1, 2002

Keywords: MATE GUARDING; INDIVIDUAL RECOGNITION; REPERTOIRE SIZE; FERTILITY ANNOUNCEMENT HYPOTHESIS; SONG RATE; SONG TYPE

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