Results 31 to 40 of about 837,519 (281)
Jurnal Kedokteran Hewan, 2017 The objective of this study was to examine the effects of repeated freeze-thaw cycles and short-term storage of fecal extracts at ambient temperature on the stability of fecal glucocorticoid (fGCM) and estrogen metabolite (fEM) levels from crested ...
Gholib Gholib +5 more
doaj +1 more source
Interaction-Independent Sexual Selection and the Mechanisms of Sexual Selection [PDF]
Evolution, 1998 Darwin identified explicitly two types of sexual selection, male contests (combat and displays) and female choice, and he devoted the overwhelming majority of his examples to traits that influence the outcome of these interactions. Subsequent treatments of sexual selection have emphasized the importance of intra- and intersexual interactions as sources
openaire +2 more sources
Operational sex ratio, sexual conflict and the intensity of sexual selection. [PDF]
, 2008 Modern sexual selection theory indicates that reproductive costs rather than the operational sex ratio predict the intensity of sexual selection. We investigated sexual selection in the polygynandrous common lizard Lacerta vivipara.
Andersson M. +11 more
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Endless forms of sexual selection [PDF]
PeerJ, 2019 In recent years, the field of sexual selection has exploded, with advances in theoretical and empirical research complementing each other in exciting ways.
Willow R. Lindsay +15 more
doaj +2 more sources
Opsin expression predicts male nuptial color in threespine stickleback. [PDF]
, 2018 Theoretical models of sexual selection suggest that male courtship signals can evolve through the build-up of genetic correlations between the male signal and female preference.
Bolnick, Daniel I +3 more
core +2 more sources
Age-dependent female responses to a male ejaculate signal alter demographic opportunities for selection [PDF]
, 2013 A central tenet of evolutionary explanations for ageing is that the strength of selection wanes with age. However, data on age-specific expression and benefits of sexually selected traits are lacking—particularly for traits subject to sexual conflict. We
Chapman, T. +3 more
core +1 more source
Evolutionary 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
Adaptation to a bacterial pathogen in Drosophila melanogaster is not aided by sexual selection
Ecology 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
Frontiers 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