作者： P. C Rnokrak
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摘要: Wing dimorphism, where some macropterous long-winged (LW) individuals can fly whereas micropterous short-winged (SW) cannot, is common in insects and believed to be maintained part by trade-offs between flight capability reproductive traits. In this paper we examine differences whole-organism respiration rate wing morphs of the sand cricket Gryllus firmus. We hypothesized that maintenance apparatus would result elevated CO2 respired because high metabolic cost these tissues, which, turn, constrain resources available for egg production females. As trade-off involves calling behaviour males, predicted no equivalent constraint on organ development sex. found female macropters (particularly older crickets) had significantly higher residual rates than micropters. only marginal morphs. both sexes there was a highly significant effect muscles status rate, with functional having rates. Both male smaller gonads Whole-organism negatively correlated fecundity: females compared lower