Results 51 to 60 of about 2,696,363 (303)

Sexual selection and sex allocation in a simultaneous hermaphrodite [PDF]

open access: yes, 2010
Since Darwin’s pioneering work, sexual selection theory has become a unifying framework in evolutionary biology successfully explaining the variation in sexual dimorphism, reproductive strategies and mating systems. Although, it has long been argued that
Janicke, Tim
core   +1 more source

Sexual selection, environmental robustness, and evolutionary demography of maladapted populations: A test using experimental evolution in seed beetles

open access: yesEvolutionary Applications, 2019
Whether sexual selection impedes or aids adaptation has become an outstanding question in times of rapid environmental change and parallels the debate about how the evolution of individual traits impacts on population dynamics.
Ivain Martinossi‐Allibert   +3 more
doaj   +1 more source

Frequency-dependent sexual selection with respect to offspring fitness returns is consistent with predictions from rock-paper-scissors dynamics in the European common lizard

open access: yesFrontiers in Ecology and Evolution, 2014
Genetic polymorphism can be maintained over time by negative frequency-dependent (FD) selection induced by Rock-paper-scissors (RPS) social systems. RPS games produce cyclic dynamics, and have been suggested to exist in lizards, insects, isopods, plants,
Patrick S. Fitze   +12 more
doaj   +1 more source

Sexual selection is a form of social selection [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2012
Social selection influences the evolution of weapons, ornaments and behaviour in both males and females. Thus, social interactions in both sexual and non-sexual contexts can have a powerful influence on the evolution of traits that would otherwise appear to be detrimental to survival.
Bruce E, Lyon, Robert, Montgomerie
openaire   +2 more sources

Variation in sexual dimorphism and assortative mating do not predict genetic divergence in the sexually dimorphic Goodeid fish Girardinichthys multiradiatus [PDF]

open access: yes, 2012
Sexual dimorphism is often used as a proxy for the intensity of sexual selection in comparative studies of sexual selection and diversification. The Mexican Goodeinae are a group of livebearing freshwater fishes with large variation between species in ...
Smith, G.   +4 more
core   +1 more source

Sexual selection and trust games [PDF]

open access: yes, 2010
In economic games the facial attributes of counterparts bias decisions to trust and decisions to enter play. We report research supporting hypotheses that trust and reciprocation decisions in trust games are biased by mechanisms of sexual selection ...
Stirrat, Michael
core   +1 more source

Adaptation to a bacterial pathogen in Drosophila melanogaster is not aided by sexual selection

open access: yesEcology and Evolution, 2022
Theory predicts that sexual selection should aid adaptation to novel environments, but empirical support for this idea is limited. Pathogens are a major driver of host evolution and, unlike abiotic selection pressures, undergo epidemiological and co ...
Sakshi Sharda   +2 more
doaj   +1 more source

Sexual selection, germline mutation rate and sperm competition

open access: yesBMC Evolutionary Biology, 2003
Background An important component of sexual selection arises because females obtain viability benefits for their offspring from their mate choice.
Møller AP, Cuervo JJ
doaj   +1 more source

Divergent natural selection alters male sperm competition success in Drosophila melanogaster

open access: yesEcology and Evolution, 2022
Sexually selected traits may also be subject to non‐sexual selection. If optimal trait values depend on environmental conditions, then “narrow sense” (i.e., non‐sexual) natural selection can lead to local adaptation, with fitness in a certain environment
Ralph Dobler   +4 more
doaj   +1 more source

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