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Conspecific male chemical cues influence courtship behaviour in the male newt Lissotriton boscai

Conspecific male chemical cues influence courtship behaviour in the male newt Lissotriton boscai Conspecific male chemical cues influence courtship behaviour in the male newt Lissotriton boscai Pedro Aragón 1) (Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal, 2. 28006-Madrid, Spain) (Accepted: 12 January 2009) Summary Chemical information can have a direct or indirect influence beyond dyadic interactions. How chemical cues can alter communicating interactions where the transmitters of chemical cues do not participate is poorly understood. Chemical information plays an important role in the sexual behaviour of urodeles. Previous studies of the newt Lissotriton boscai and other salamandrids showed that males modify their courtship in presence of competitors to avoid courtship interferences. The aim of this study was to test whether L. boscai males assess the level of competition through chemical cues and adjust their courtship accordingly. In a first experiment, male courtship displays were recorded in aquaria containing their own chemical stimuli, or from another male. The duration and/or the number of several courtship displays were scored, and found that males decreased their courtship effort when the water contained chemical stimuli from another male. This experiment showed that semiochemicals can be suf- ficient to modify courtship displays without visual contact with transmitters of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Conspecific male chemical cues influence courtship behaviour in the male newt Lissotriton boscai

Behaviour , Volume 146 (8): 1137 – Jan 1, 2009

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References (54)

Publisher
Brill
Copyright
© 2009 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/156853909X413097
Publisher site
See Article on Publisher Site

Abstract

Conspecific male chemical cues influence courtship behaviour in the male newt Lissotriton boscai Pedro Aragón 1) (Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal, 2. 28006-Madrid, Spain) (Accepted: 12 January 2009) Summary Chemical information can have a direct or indirect influence beyond dyadic interactions. How chemical cues can alter communicating interactions where the transmitters of chemical cues do not participate is poorly understood. Chemical information plays an important role in the sexual behaviour of urodeles. Previous studies of the newt Lissotriton boscai and other salamandrids showed that males modify their courtship in presence of competitors to avoid courtship interferences. The aim of this study was to test whether L. boscai males assess the level of competition through chemical cues and adjust their courtship accordingly. In a first experiment, male courtship displays were recorded in aquaria containing their own chemical stimuli, or from another male. The duration and/or the number of several courtship displays were scored, and found that males decreased their courtship effort when the water contained chemical stimuli from another male. This experiment showed that semiochemicals can be suf- ficient to modify courtship displays without visual contact with transmitters of

Journal

BehaviourBrill

Published: Jan 1, 2009

Keywords: BOSCA'S NEWT; COURTSHIP DISPLAY; CHEMICAL CUES; LISSOTRITON BOSCAI; AMPHIBIA; AUDIENCE EFFECTS

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