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Female encounter rate and the calling behavior and mating propensity of male Requena verticalis (Orthoptera: Tettigoniidae)


Allen, GR and Bailey, WJ, Female encounter rate and the calling behavior and mating propensity of male Requena verticalis (Orthoptera: Tettigoniidae), Behavioral Ecology and Sociobiology, 34, (1) pp. 63-69. ISSN 0340-5443 (1994) [Refereed Article]

Copyright Statement

Copyright 1994 Springer-Verlag

DOI: doi:10.1007/BF00175459


Mating effort, the energy exerted in finding and persuading a member of the opposite sex to mate, may be influenced by how frequently potential mates are encountered. Specifically, males that frequently encounter females may reduce calling effort and be less eager to mate than males that infrequently encounter females. An experiment was set up to test this hypothesis, using the tettigoniid Requena verticalis. We examined the song structure, calling activity and mating propensity of individual males exposed to one of five different encounter rates with virgin females. Song structure and calling effort were significantly altered by an encounter with a female. After an encounter, males significantly increased chirp rate and decreased variability in interchirp interval. Encounters also stimulated a male to call and to continue to call for up to two hours. The elapsed time since mating affected mating propensity but not calling activity. Mating propensity asymptotically increased to reach a maximum by day 17 since last mating. However, neither the frequency of encounters, nor the number of previous encounters experienced by a male, influenced calling activity or the propensity of a male to mate. The significance of changes in song structure and calling activity following an encounter, and of increasing male mating propensity over time, are discussed.

Item Details

Item Type:Refereed Article
Keywords:Tettigoniidae, Katydid, mating effort, calling activity
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Behavioural ecology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Allen, GR (Associate Professor Geoff Allen)
ID Code:102686
Year Published:1994
Web of Science® Times Cited:7
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2015-09-03
Last Modified:2016-10-18

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