Results 31 to 40 of about 188,051 (243)

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

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

Can Sexual Selection Drive the Evolution of Sperm Cell Structure?

open access: yesCells, 2021
Sperm cells have undergone an extraordinarily divergent evolution among metazoan animals. Parker recognized that because female animals frequently mate with more than one male, sexual selection would continue after mating and impose strong selection on ...
Leigh W. Simmons   +1 more
doaj   +1 more source

Sexual selection gradients change over time in a simultaneous hermaphrodite

open access: yeseLife, 2017
Sexual selection is generally predicted to act more strongly on males than on females. The Darwin-Bateman paradigm predicts that this should also hold for hermaphrodites.
Jeroen NA Hoffer   +3 more
doaj   +1 more source

Resource acquisition and pre‐copulatory sexual selection

open access: yesEcology and Evolution, 2022
Sexual selection influences the evolution of phenotypic traits and contributes to patterns of biodiversity. In many animals, mating involves sequential steps.
Hope Klug, Chelsea Langley, Elijah Reyes
doaj   +1 more source

THE EVOLUTION OF HOMO LUDENS: SEXUAL SELECTION AND A THEOLOGY OF PLAY

open access: yesZygon, 2022
This essay argues that reflection on sexual selection can be theologically generative, and that it presents needed counteremphases to some of the discussions about theological anthropology that have been fueled by theological reflection on natural ...
doaj   +2 more sources

Post-insemination selection dominates pre-insemination selection in driving rapid evolution of male competitive ability.

open access: yesPLoS Genetics, 2022
Sexual reproduction is a complex process that contributes to differences between the sexes and divergence between species. From a male's perspective, sexual selection can optimize reproductive success by acting on the variance in mating success (pre ...
Katja R Kasimatis   +5 more
doaj   +1 more source

Utility of Computed Tomography Surveillance of Asymptomatic Infection in Children and Young Adults Before Allogeneic Hematopoietic Stem Cell Transplant

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Asymptomatic infection poses a significant risk for children undergoing hematopoietic stem cell transplantation (HSCT). Pre‐transplant surveillance computed tomography (CT) is commonly used to identify occult infection, though its diagnostic yield remains uncertain.
Tyler Obermark   +9 more
wiley   +1 more source

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