Search Results - "Darryl T. Gwynne"

Sexual Conflict over Nuptial Gifts in Insects by Gwynne, D.T

“…Edible and seminal gifts that male arthropods transfer to their mates range from important material donations to items that provide little direct benefit…”
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Effect of body condition on mobility and mating success in a wild population of the scramble polygynous Cook Strait giant weta by Kelly, Clint D., Gwynne, Darryl T.

“…Males in scramble competitive species that are in better condition are expected to have better endurance and thus be able to travel farther during bouts of…”
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Sexual Selection: Roles Evolving by Gwynne, Darryl T.

“…In a role-reversed beetle, in which sexual selection acts primarily on females, females evolved to more rapidly court and copulate after many generations of…”
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Paternity sharing in insects with female competition for nuptial gifts by Browne, Jessica H., Gwynne, Darryl T.

“…Male parental investment is expected to be associated with high confidence of paternity. Studies of species with exclusive male parental care have provided…”
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Mating and Sexual Selection in Empidine Dance Flies (Empididae) by Murray, Rosalind L., Gwynne, Darryl T., Bussière, Luc F.

“…Species whose behaviour or morphology diverges from typical patterns can provide unique insights on the evolutionary forces that promote diversity. Darwin…”
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Egg load decreases mobility and increases predation risk in female black-horned tree crickets (Oecanthus nigricornis) by Ercit, Kyla, Martinez-Novoa, Andrew, Gwynne, Darryl T

“…Female-biased predation is an uncommon phenomenon in nature since males of many species take on riskier behaviours to gain more mates. Several species of…”
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Sexual Selection for Male Mobility in a Giant Insect with Female‐Biased Size Dimorphism by Kelly, Clint D., Bussière, Luc F., Gwynne, Darryl T.

“…Female‐biased size dimorphism, in which females are larger than males, is prevalent in many animals. Several hypotheses have been developed to explain this…”
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Listening to male song induces female field crickets to differentially allocate reproductive resources by Ting, Janice J., Judge, Kevin A., Gwynne, Darryl T.

“…Differential investment in offspring by mothers is predicted when there is substantial variation in sire quality. Whether females invest more resources in the…”
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Sexual selection on a female copulatory device in an insect with nuptial gifts by Browne, Jessica H., Gwynne, Darryl T.

“…Male genitalia are rapidly evolving structures, often driven by sexual selection to increase fertilisation success. Although sexual selection on females can be…”
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Mating assortment and the strength of sexual selection in a polyandrous population of Cook Strait giant weta by Kelly, Clint D, Gwynne, Darryl T

“…Abstract Polyandry can profoundly affect the strength of pre-copulatory sexual selection acting on males because each additional mate acquired by a female…”
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Dispersal differences predict population genetic structure in Mormon crickets by BAILEY, NATHAN W, GWYNNE, DARRYL T, RITCHIE, MICHAEL G

“…Research investigating the geographical context of speciation has primarily focused on abiotic factors such as the role of Pleistocene glacial cycles, or…”
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Deceived, but not betrayed: static allometry suggests female ornaments in the long-tailed dance fly (Rhamphomyia longicauda) exaggerate condition to males by Browne, Jessica H., Gwynne, Darryl T.

“…Despite their prevalence in nature, the evolution of sex-specific female ornaments is still not well understood. Although in some cases (often carotenoid-based…”
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Correction to: Deceived, but not betrayed: static allometry suggests female ornaments in the long‑tailed dance fly (Rhamphomyia longicauda) exaggerate condition to males by Browne, Jessica H., Gwynne, Darryl T.

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Sexually antagonistic coevolution can explain female display signals and male sensory adaptations by Wiberg, R Axel W, Murray, Rosalind L, Herridge, Elizabeth, Pärssinen, Varpu, Gwynne, Darryl T, Bussière, Luc F

“…The prevalence and diversity of female ornaments pose a challenge to evolutionary theory because males should prefer mates that spend resources on offspring…”
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Darwinian balancing selection: Predation counters sexual selection in a wild insect by Ercit, Kyla, Gwynne, Darryl T.

“…The potential viability costs of sexually selected traits are central to hypotheses about the evolution of exaggerated traits. Estimates of these costs in…”
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Sex differences in survival: viability selection in nymphal tree crickets from a conopid fly parasitoid by Etzler, Erik A., Gwynne, Darryl T.

“…1. Variation in mortality due to parasitoids is expected to be affected by host sex and size. 2. We use selection analyses to examine the effects of…”
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Sexual selection on multiple female ornaments in dance flies by Murray, Rosalind L., Wheeler, Jill, Gwynne, Darryl T., Bussière, Luc F.

“…Sex-specific ornaments typically occur in males, but they can also develop in females. While there are several models concerning the evolution of male-specific…”
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Sex-biased immunity is driven by relative differences in reproductive investment by Vincent, Crystal M., Gwynne, Darryl T.

“…Sex differences in immunity are often observed, with males generally having a weaker immune system than females. However, recent data in a sex-role-reversed…”
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Viability selection on female fly finery in the wild by Gwynne, Darryl T., Punzalan, David, Hunt, John

“…Female ornaments have evolved in a few taxa in which females compete for access to important resources provided by their mates. However, the effects of these…”
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Female fitness consequences of male harassment and copulation in seed beetles, Callosobruchus maculatus by den Hollander, Michelle, Gwynne, Darryl T.

“…Despite widespread evidence for the benefits of polyandry, there are costs associated with each mating for females, and for many species, it is unknown whether…”
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