Phenotypic plasticity and the evolution of trade-offs: the quantitative genetics of resource allocation in the wing dimorphic cricket, <i>Gryllus firmus</i>

Roff, Derek A.; Gélinas, M. B.

doi:10.1046/j.1420-9101.2003.00480.x

Cited by 51 publications

(50 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ornamentation does not impose any detectable energetic costs and honesty may instead be maintained by social costs or predation (Berglund et al 1997). In R. tarsata, pinnate scales are a morphological trait of fixed size in the adult; however, pinnate scales may divert female resources from reproductive organs during development (Emlen 2001;Roff & Gelinas 2003) or increase susceptibility to predation (Cumming 1994). Such potential costs of the ornamentation in R. tarsasta are unknown; however, we have shown equivalent allometry for offspring and ornaments.…”

Section: Discussionmentioning

confidence: 64%

Nonlinear and correlational sexual selection on ‘honest’ female ornamentation

LeBas

Hockham

Ritchie

2003

Proc. R. Soc. Lond. B

114

121

View full text Add to dashboard Cite

Female ornamentation has long been overlooked because of the greater prevalence of elaborate displays in males. However, the circumstances under which females would benefit from honestly signalling their quality are limited. Females are not expected to invest in ornamentation unless the fitness benefits of the ornament exceed those derived from investing the resources directly into offspring. It has been proposed that when females gain direct benefits from mating, females may instead be selected for ornamentation that deceives males about their reproductive state. In the empidid dance flies, males frequently provide nuptial gifts and it is usually only the female that is ornamented. Female traits in empidids, such as abdominal sacs and enlarged pinnate leg scales, have been proposed to 'deceive' males into matings by disguising egg maturity. We quantified sexual selection in the dance fly Rhamphomyia tarsata and found escalating, quadratic selection on pinnate scales and that pinnate scales honestly reflect female fecundity. Mated females had a larger total number and more mature eggs than unmated females, highlighting a potential benefit rather than a cost of male mate choice. We also show correlational selection on female pinnate scales and fecundity. Correlational selection, equivalent investment patterns or increased nutrition from nuptial gifts may all maintain honesty in female ornamentation.

show abstract

Section: Discussionmentioning

confidence: 64%

Nonlinear and correlational sexual selection on ‘honest’ female ornamentation

LeBas

Hockham

Ritchie

2003

Proc. R. Soc. Lond. B

114

121

View full text Add to dashboard Cite

show abstract

“…For example, DeHaan et al (2005) contrast phenotypic tradeoff models unfavorably with quantitative genetic tradeoff (QGT) models based on research on wing dimorphism in crickets (Roff et al 2002;Roff and Gelinas 2003). They argue, "Only if tradeoffs are held to be static and bivariate can the phenotypic model be applied to perennial grain breeding" (20).…”

Section: Sexual Allocationmentioning

confidence: 99%

“…Nor can phenotypic plasticity independent of ecological constraint be simply assumed by virtue of its theoretical possibility in QGT models (Roff and Fairbairn 2007). This is apparent in the empirical results for the crickets: (S-strategist) winged female crickets are unable to reallocate the energetic budget invested in their wing musculature to reproduction in circumstances of dietary constraint, giving vestigial-winged (R-strategist) females a slight (nonsignificant) reproductive advantage (Roff and Gelinas 2003). Some insect species appear able to switch from S to R strategies, whereas others cannot, but the switch is typically a "monocarpic" (once reproducing) one that maximizes a one-off reproductive output at the end of the adult lifecycle.…”

Section: Sexual Allocationmentioning

confidence: 99%

The Strong Perennial Vision: A Critical Review

Smaje

2015

Agroecology and Sustainable Food Systems

View full text Add to dashboard Cite

The environmental damage associated with the cultivation of annual cereal crops has prompted an interest in perennial alternatives. A distinction can be made between weaker and stronger variants of this perennial vision, the latter suggesting that perenniality imposes no intrinsic yield penalty, including amongst staple cereal crops. This article provides a critical review of this strong perennial vision, arguing that it overemphasizes the capacity of human plant breeding to overcome intrinsic ecological limitations in the life history, reproductive effort, and physiology of perennial crops, and inadequately specifies the nature of the tradeoffs in sexual allocation, nutrient response, leaf economics, and agroecosystem management that have resulted in an annual-dominated agriculture. The benefits of a weaker "perennial vision" that places greater emphasis on addressing environmental problems as social problems of human ecology are discussed.

show abstract

“…For invertebrate animals changes in fecundity due to dietary effects have been recorded for different systems and taxa including changes associated with food limitation [36], [37], moisture content in the diet [38], specific nutrient deficiency [4], [39], diet composition [40], [41], [42] and presence of inhibitory secondary metabolites [43], [44].…”

Section: Introductionmentioning

confidence: 99%

Experimental Evidence for Nutrition Regulated Stress Resistance in Drosophila ananassae

Sisodia

Singh

2012

PLoS ONE

View full text Add to dashboard Cite

BackgroundThe amount and quality of nutrients consumed by organisms have a strong impact on stress resistance, life-history traits and reproduction. The balance between energy acquisition and expenditure is crucial to the survival and reproductive success of animals. The ability of organisms to adjust their development, physiology or behavior in response to environmental conditions, called phenotypic plasticity, is a defining property of life. One of the most familiar and important examples of phenotypic plasticity is the response of stress tolerance and reproduction to changes in developmental nutrition. Larval nutrition may affect a range of different life-history traits as well as responses to environmental stress in adult.Principal FindingsHere we investigate the effect of larval nutrition on desiccation, starvation, chill-coma recovery, heat resistance as well as egg to adult viability, egg production and ovariole number in Drosophila ananassae. We raised larvae on either protein rich diet or carbohydrate rich diet. We found that flies consuming protein rich diet have higher desiccation and heat shock resistance whereas flies developed on carbohydrate rich diet have higher starvation and cold resistance. Egg production was higher in females developed on protein rich diet and we also found trade-off between egg production and Egg to adult viability of the flies. Viability was higher in carbohydrate rich diet. However, sex specific viability was found in different nutritional regimes. Higher Egg production might be due to higher ovariole number in females of protein rich diet.ConclusionThus, Drosophila ananassae adapts different stress tolerance and life-history strategies according to the quality of the available diet, which are correlated with phenotypic adjustment at anatomical and physiological levels.

show abstract

Phenotypic plasticity and the evolution of trade-offs: the quantitative genetics of resource allocation in the wing dimorphic cricket, Gryllus firmus

Cited by 51 publications

References 61 publications

Nonlinear and correlational sexual selection on ‘honest’ female ornamentation

Nonlinear and correlational sexual selection on ‘honest’ female ornamentation

The Strong Perennial Vision: A Critical Review

Experimental Evidence for Nutrition Regulated Stress Resistance in Drosophila ananassae

Contact Info

Product

Resources

About