Longevity, calling effort, and metabolic rate in two populations of cricket

Kensuke Okada, William R. Pitchers, Manmohan D. Sharma, John Hunt, David J. Hosken

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Intraspecific variation in a resting metabolic rate (RMR) is likely to be an important determinant of energetic-resource use and may influence the resources subsequently available for allocation to traits not directly associated with somatic maintenance. The influence of RMR on resource availability could be especially important for condition-dependent sexual traits, such as cricket calls, that are themselves energetically costly to produce. RMR may also be associated with longevity, either negatively because individuals with a high RMR burn resources faster and die young, or positively as individuals with high RMR are more able to accrue resources to fuel survival. Additionally, the associations between RMR and other characters may vary across populations if differential selection or drift shapes these traits. Here we tested for differences in RMR, body mass, calling effort, and longevity in two populations of cricket Gryllodes sigillatus and then evaluated the potential influence of RMR on calling and longevity. We find that RMR, calling effort, and longevity varied across populations, but mass did not. Controlling for population and mass, RMR was not significantly associated with calling effort, but was negatively associated with longevity. These findings suggest that male crickets that live fast die young.

Original languageEnglish
Pages (from-to)1773-1778
Number of pages6
JournalBehavioral Ecology and Sociobiology
Volume65
Issue number9
DOIs
Publication statusPublished - Sep 2011
Externally publishedYes

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Keywords

  • Attractiveness
  • Life history
  • Reactive oxygen species
  • Resource allocation
  • Sexual signaling

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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