Results 31 to 40 of about 2,696,363 (303)

The sexual selection of endometriosis.

open access: yesEvolutionary Behavioral Sciences, 2023
Selection can generate risk of maladaptive extremes in sexually dimorphic and sex-limited traits. In humans, such extremes commonly manifest in diseases associated with sex and reproduction. Endometriosis involves endometrial tissue that proliferates at non-uterine sites.
Bernard Crespi, Natalie L. Dinsdale
openaire   +2 more sources

Sexual selection in a transparent worm : insights from fluorescent sperm [PDF]

open access: yes, 2015
Sexual selection is a potent source of selection underlying the evolution of sexual dimorphism, reproductive strategies and mating systems. Although sexual selection was initially thought to occur exclusively at the pre-copulatory stage (e.g., contests ...
Marie-Orleach, Lucas
core   +1 more source

Beyond sex allocation : the role of mating systems in sexual selection in parasitoid wasps [PDF]

open access: yes, 2014
Funding: UK NERC Doctoral Training GrantDespite the diverse array of mating systems and life histories which characterise the parasitic Hymenoptera, sexual selection and sexual conflict in this taxon have been somewhat overlooked.
Laura A. Collins   +5 more
core   +1 more source

Darwin's Explanation of Races by Means of Sexual Selection [PDF]

open access: yes, 2012
In _Darwin's Sacred Cause_, Adrian Desmond and James Moore contend that "Darwin would put his utmost into sexual selection because the subject intrigued him, no doubt, but also for a deeper reason: the theory vindicated his lifelong commitment to human ...
Millstein, Roberta L.
core   +1 more source

Sexual Selection and Proteinaceous Diversity in the Femoral Gland Secretions of Lacertid Lizards

open access: yesDiversity, 2023
Sexual selection contributes to the diversity of chemical signals in various animal groups. Lizards are good model species to study how sexual selection shapes signal diversity, as they are a chemically oriented taxonomic group with different levels of ...
Marco Mangiacotti   +5 more
doaj   +1 more source

Sexual selection on song and cuticular hydrocarbons in two distinct populations of Drosophila montana [PDF]

open access: yes, 2011
Sexual selection has the potential to contribute to population divergence and speciation. Most studies of sexual selection in Drosophila have concentrated on a single signaling modality, usually either courtship song or cuticular hydrocarbons (CHCs ...
Butlin, Roger K.   +17 more
core   +1 more source

The sexual selection continuum [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2002
The evolution of mate choice for genetic benefits has become the tale of two hypotheses: Fisher's 'run-away' and 'good genes', or viability indicators. These hypotheses are often pitted against each other as alternatives, with evidence that attractive males sire more viable offspring interpreted as support for good genes and with a negative or null ...
Kokko, H   +3 more
openaire   +2 more sources

Evolution of sexual size dimorphism in mammals: Sexual or natural selection? [PDF]

open access: yes, 2023
Sexual size dimorphism may have evolved through two processes: sexual or natural selection. The sexual selection theory states that males compete for mate monopolization and larger males can sire more offspring than smaller ones—factors that resulted in ...
Cassini, Marcelo Hernan
core   +1 more source

Runaway sexual selection without genetic correlations : social environments and flexible mate choice initiate and enhance the Fisher process [PDF]

open access: yes, 2012
Female mating preferences are often flexible, reflecting the social environment in which they are expressed. Associated indirect genetic effects (IGEs) can affect the rate and direction of evolutionary change, but sexual selection models do not capture ...
Moore, Allen J.   +3 more
core   +1 more source

Interaction-Independent Sexual Selection and the Mechanisms of Sexual Selection [PDF]

open access: yesEvolution, 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

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