Effects of juvenile and adult condition on long-distance call components in the Jamaican field cricket, Gryllus assimilis

Publication Type:Journal Article
Year of Publication:2011
Автори:Whattam, Bertram
Journal:Animal Behaviour
Гучність:81
Проблема:1
Pagination:135 - 144
Date Published:Jan-01-2011
ISSN:00033472
Ключові слова:acoustic signal, complex signal, condition-dependence, content, efficacy, Field cricket, multiple messages, multiple signals, redundant signal, sexual selection
Анотація:

Complex signals may arise through either content- or efficacy-based selection. Content-based signals are thought to evolve because of the information content they provide to the receiver. Such signals may function as multiple messages, each relaying different information or types of information. For example, some signals or signal components may indicate different aspects of condition, or condition at different life stages (quality signals), while others relay information on signaller location, or function in species recognition. Or they may act as redundant signals of overall condition, or as backup signals of the same aspect of condition. Efficacy-based signals are proposed to evolve because of the way in which they influence the production, transmission, reception or processing of the signal. We manipulated juvenile and adult condition in male Jamaican field crickets, Gryllus assimilis, to test whether changes in components of the male’s long-distance acoustic mate attraction signal were consistent with content- or efficacy-based selection. Several call components exhibited condition-dependence, and may be under content-based selection. Interpulse duration, pulse rate and chirp duration appeared to honestly signal juvenile condition, while dominant frequency appeared to signal adult condition. Thus, these signal components appeared to be acting as multiple messages of quality. Pulse number, interchirp duration and chirp rate were highly stereotyped and probably function in species recognition. Call number increased with decreasing condition and was likely under efficacy-based selection. No call components appeared to have the potential to act as redundant signals.

URL-адреса:http://linkinghub.elsevier.com/retrieve/pii/S0003347210003933
DOI:10.1016/j.anbehav.2010.09.024
Short Title:Animal Behaviour
BioAcoustica ID: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith