Results 61 to 70 of about 3,300,887 (297)
Sexual Selection and Sexual Dimorphism in Mottled Sculpins [PDF]
There are two aspects to sexual selection (Darwin, 1871). Intra-sexual selection focuses on the consequences of competition between members of one sex (usually males) for access to the other sex; whereas epigamic selection or female choice focuses on the consequences of mate preferences of one sex (usually females) with regard to the other sex ...
Jerry F, Downhower +3 more
openaire +2 more sources
Can sexual selection drive female life histories? A comparative study on Galliform birds [PDF]
Sexual selection has been identified as a major evolutionary force shaping male life history traits but its impact on female life history evolution is less clear.
A. Ø. Mooers +14 more
core +1 more source
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
Sexual selection and sex allocation in a simultaneous hermaphrodite [PDF]
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
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
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
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
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?
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

