MATE GUARDING CONFLICT, EXTRA-PAIR COURTSHIP AND SIGNALLING IN THE HARLEQUIN DUCK, HISTRIONICUS HISTRIONICUS by JOHN LAZARUS 1,2) , IAN R. INGLIS 3) and REBECCA L.L.F. TORRANCE 4,5,6) ( 1 Evolution and Behaviour Research Group, Psychology, Brain and Behaviour, School of Biology, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK; 3 Animal Welfare Team, Central Science Laboratory, Sand Hutton, York, YO4 1LZ, UK; 4 Department of Zoology, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK) (Acc. 16-VIII-2004) Summary Socially monogamous birds pursuing extra-pair reproductive strategies may be in conflict, both sexes seeking new mates or copulations outside the pair, while simultaneously attempt- ing to prevent infidelity by the partner. Intra-pair conflicts are augmented by inter-pair con- flicts when pairs meet, when all four individuals may be sexually attracted to one member of the other pair while seeking to prevent their mate from copulating, or deserting, with the other. We studied the dynamics, signalling and resolution of these conflicts in a field experi- ment with the harlequin duck, recording responses to single model birds of both sexes, and to model pairs. Both sexes mate guarded by placing themselves between the mate and a model competitor, and by signalling
Behaviour – Brill
Published: Jan 1, 2004
Keywords: MATE GUARDING SIGNALS; HISTRIONICUS HISTRIONICUS; MATE GUARDING CONFLICT; EXTRA-PAIR COURTSHIP; HARLEQUIN DUCK; MATE GUARDING; COURTSHIP SIGNALS
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