Condition dependence of a multicomponent sexual signal in the field cricket Gryllus campestris

Scheuber, Hannes; Jacot, Alain; Brinkhof, Martin W. G.

doi:10.1006/anbe.2003.2083

Cited by 149 publications

(130 citation statements)

References 62 publications

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“…This is often assumed; it would be better if it were demonstrated (e.g. Kotiaho 2002;Scheuber et al 2003a).…”

Section: (A) General Findingsmentioning

confidence: 99%

“…Cervus elaphus Horn length shows sigmoidal allometry unlike other traits which is interpreted as elevated condition dependence, but horns are thought to be weapons rather than sexual ornaments (Kotiaho 2002), and under frequency-dependent rather than sexual selection (Moczek & Emlen 2000 Scheuber et al (2003a) experimentally investigated the condition dependence of calling song in Gryllus campestris. They found that the frequency of calling and the chirp rate declined as adult dietary stress increased.…”

Section: (B) Cricketsmentioning

confidence: 99%

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Do sexual ornaments demonstrate heightened condition-dependent expression as predicted by the handicap hypothesis?

Cotton

Fowler

Pomiankowski

2004

Proc. R. Soc. Lond. B

569

681

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The handicap hypothesis of sexual selection predicts that sexual ornaments have evolved heightened condition-dependent expression. The prediction has only recently been subject to experimental investigation. Many of the experiments are of limited value as they: (i) fail to compare condition dependence in sexual ornaments with suitable non-sexual trait controls; (ii) do not adequately account for body size variation; and (iii) typically consider no stress and extreme stress manipulations rather than a range of stresses similar to those experienced in nature. There is also a dearth of experimental studies investigating the genetic basis of condition dependence. Despite the common claim that sexual ornaments are conditiondependent, the unexpected conclusion from our literature review is that there is little support from welldesigned experiments.

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“…This is often assumed; it would be better if it were demonstrated (e.g. Kotiaho 2002;Scheuber et al 2003a).…”

Section: (A) General Findingsmentioning

confidence: 99%

Section: (B) Cricketsmentioning

confidence: 99%

Do sexual ornaments demonstrate heightened condition-dependent expression as predicted by the handicap hypothesis?

Cotton

Fowler

Pomiankowski

2004

Proc. R. Soc. Lond. B

569

681

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show abstract

“…We recently proposed that the calling song of male field crickets Gryllus campestris is a multicomponent sexual signal, in which two key components, chirp rate and carrier frequency (pitch), reflect condition during different stages of life (Scheuber et al 2003). The calling song is the main acoustic sexual display in crickets and female mate-choice decisions may involve both chirp rate (Wagner et al 2001) and carrier frequency (Simmons & Ritchie 1996).…”

Section: Introductionmentioning

confidence: 99%

The effect of past condition on a multicomponent sexual signal

Scheuber

Jacot

Brinkhof

2003

Proc. R. Soc. Lond. B

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Sexual-selection theory predicts that multiple signals may reveal male condition at different stages of life, thus allowing females to make a more reliable assessment of male quality. While the effect of current condition on signal design is well established, few studies have experimentally investigated the effects of past condition. We therefore manipulated the nutritional condition of male nymph field crickets Gryllus campestris and assessed the enduring effects on multiple components of the adult calling song. Foodrestricted males had longer nymphal development times and smaller adult body sizes than nymphs with ad libitum food access. Nymphal feeding conditions specifically affected the allometric relationship between body size and harp size, as food-restricted males developed comparatively small harps, leading to a calling song of higher carrier frequency than that produced by similar-sized control males. Other calling-song components, notably chirp rate and chirp intensity, were not affected by the nymphal food treatment, exposing carrier frequency as the key component indicating past condition. In a previous study we established chirp rate as the sole indicator of current condition. The combined results represent experimental evidence of a multicomponent sexual signal that provides distinct information on male condition during different stages of life.

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“…Studies in other species of crickets have shown that body condition affects calling song (Wagner & Hoback 1999;Holzer et al 2003;Scheuber et al 2003), and in some cases, affects female choice (Wagner & Hoback 1999;Holzer et al 2003). In contrast, body condition in G. texensis does not affect courtship song, which is quieter than calling song and directly precedes mating (Gray & Eckhardt 2001).…”

Section: Discussionmentioning

confidence: 97%

“…First, calling in crickets is energetically costly, requiring up to 16 times basal metabolic rates for some trilling species (Prestwich & Walker 1981;Hoback & Wagner 1997). Second, some components of cricket song are condition dependent in other species of crickets (Wagner & Hoback 1999;Scheuber et al 2003). Third, food limitation and condition dependence of song elements occur in some cricket populations under natural conditions (Holzer et al 2003).…”

mentioning

confidence: 99%

Environmental condition-dependent effects on a heritable, preferred male trait

Hedrick

2005

Animal Behaviour

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Models for the evolution of female mating preferences suggest that preferred male traits may be condition dependent. In the field cricket, Gryllus integer, a preferred male trait (calling-bout duration) shows high additive genetic variance. I found that this preferred trait is also condition dependent. Under food deprivation, males lose body mass and correspondingly shorten the durations of their calling bouts. This result implies that females might be able to gain cues from calling-bout durations about a male's body condition.

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Condition dependence of a multicomponent sexual signal in the field cricket Gryllus campestris

Cited by 149 publications

References 62 publications

Do sexual ornaments demonstrate heightened condition-dependent expression as predicted by the handicap hypothesis?

Do sexual ornaments demonstrate heightened condition-dependent expression as predicted by the handicap hypothesis?

The effect of past condition on a multicomponent sexual signal

Environmental condition-dependent effects on a heritable, preferred male trait

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