Results 11 to 20 of about 188,051 (243)

Female fertile phase synchrony, and male mating and reproductive skew, in the crested macaque

open access: yesScientific Reports, 2021
High social status is the primary determinant of reproductive success among group-living male mammals. Primates living in multimale–multifemale groups show the greatest variation in the strength of this link, with marked variation in reproductive skew by
James P. Higham   +5 more
doaj   +1 more source

Stronger net selection on males across animals

open access: yeseLife, 2021
Sexual selection is considered the major driver for the evolution of sex differences. However, the eco-evolutionary dynamics of sexual selection and their role for a population’s adaptive potential to respond to environmental change have only recently ...
Lennart Winkler   +3 more
doaj   +1 more source

Sexual and natural selection both influence male genital evolution. [PDF]

open access: yesPLoS ONE, 2013
Rapid and divergent evolution of male genital morphology is a conspicuous and general pattern across internally fertilizing animals. Rapid genital evolution is thought to be the result of sexual selection, and the role of natural selection in genital ...
Clarissa M House   +6 more
doaj   +1 more source

Genomic Insights Into the Molecular Basis of Sexual Selection in Birds

open access: yesFrontiers in Ecology and Evolution, 2021
Sexual selection is a well-known biological process, yet the genomic basis and patterns of sexual selection are not fully understood. The extravagant ornamental plumage of peacock (Pavo cristatus) was instrumental in shaping Charles Darwin's theory of ...
Shubham K. Jaiswal   +5 more
doaj   +1 more source

The impact of small groups on pre‐ and postcopulatory sexual selection in polyandrous populations

open access: yesEcology and Evolution, 2023
Sexual selection is a key evolutionary force but varies widely between populations. Two key factors that influence sexual selection are the extent to which females copulate with multiple males (polyandry) and variation in the social environment ...
Grant C. McDonald
doaj   +1 more source

Evolution by Sexual Selection

open access: yesFrontiers in Ecology and Evolution, 2021
Charles Darwin published his second book “Sexual selection and the descent of man” in 1871 150 years ago, to try to explain, amongst other things, the evolution of the peacock’s train, something that he famously thought was problematic for his theory of ...
Marion Petrie
doaj   +1 more source

Identification of Follower Status Based on Male Proximity Score in Crested Macaque

open access: yesHayati Journal of Biosciences, 2020
Crested macaque live in multimale-multifemale social groups where temporary association (consortship) typically occurs. Current theory and these limited qualitative observations suggest the hypothesis that behavior functions as a means for males to gain ...
Andre Pasetha   +4 more
doaj   +1 more source

Postcopulatory sexual selection [PDF]

open access: yesNature Reviews Genetics, 2002
The female reproductive tract is where competition between the sperm of different males takes place, aided and abetted by the female herself. Intense postcopulatory sexual selection fosters inter-sexual conflict and drives rapid evolutionary change to generate a startling diversity of morphological, behavioural and physiological adaptations.
Birkhead, T.R., Pizzari, T.
openaire   +4 more sources

Environmental Correlates of Sexual Signaling in the Heteroptera: A Prospective Study

open access: yesInsects, 2021
Sexual selection is a major evolutionary process, shaping organisms in terms of success in competition for access to mates and their gametes. The study of sexual selection has provided rich empirical and theoretical literature addressing the ecological ...
Eleanor H. Z. Gourevitch   +1 more
doaj   +1 more source

Divergent preference functions generate directional selection in a jumping spider

open access: yesScientific Reports, 2023
Sexual selection has long been thought to promote speciation, but this possibility still remains a topic of controversy. Many theoretical models have been developed to understand the relationship between sexual selection and speciation, but such ...
Leonardo Braga Castilho
doaj   +1 more source

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