Results 21 to 30 of about 201,532 (162)

Mate-guarding behavior enhances male reproductive success via familiarization with mating partners in medaka fish [PDF]

open access: yes, 2018
Background: Male-male competition and female mating preference are major mechanisms of sexual selection, which influences individual fitness. How male-male competition affects female preference, however, remains poorly understood.
Ansai, Satoshi   +7 more
core   +1 more source

Male and female emirati medical clerks’ perceptions of the impact of gender and mobility on their professional careers [PDF]

open access: yes, 2017
Background: Medicine has undergone profound changes in terms of the number of women entering the profession with postulated implications of this ‘feminization’ for the profession.
Higgins-Opitz, Susan B.   +1 more
core   +1 more source

Female sand gobies prefer good fathers over dominant males [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 1997
Female preference for males successful in male–male competition is generally assumed to result in mating with high quality males. Here I report results from an experiment disentangling the effects of intra– and intersexual selection in the sand goby, Pomatoschistus minutus , a marine fish that exhibits paternal care.
openaire   +1 more source

The roles of inter- and intra-sexual selection in behavioral isolation between native and invasive pupfishes [PDF]

open access: yes, 2017
Male-male competition and female mate choice may both play important roles in driving and maintaining reproductive isolation between species. When previously allopatric species come into secondary contact with each other due to introductions, they ...
Becher, Cory, Gumm, Jennifer M.
core   +2 more sources

Sex-differential selection and the evolution of X inactivation strategies. [PDF]

open access: yesPLoS Genetics, 2013
X inactivation--the transcriptional silencing of one X chromosome copy per female somatic cell--is universal among therian mammals, yet the choice of which X to silence exhibits considerable variation among species.
Tim Connallon, Andrew G Clark
doaj   +1 more source

It’s the way he tells them (and who is listening):men’s dominance is positively correlated with their preference for jokes told by dominant-sounding men [PDF]

open access: yes, 2015
While much research has explored humorous exchange in relation to mate choice, recent perspectives have emphasized the importance of humor for monitoring interest within social partnerships more generally.
Cowan, Mary Louise   +4 more
core   +5 more sources

Male Reproductive Strategies in Black and Gold Howler Monkeys (Alouatta caraya) [PDF]

open access: yes, 2013
Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult ...
Corach, Daniel   +2 more
core   +1 more source

Sperm mobility: mechanisms of fertilizing efficiency, genetic variation and phenotypic relationship with male status in the domestic fowl, Gallus gallus domesticus [PDF]

open access: yes, 2002
When females are sexually promiscuous, sexual selection continues after insemination through sperm competition and cryptic female choice, and male traits conveying an advantage in competitive fertilization are selected for. Although individual male and
Allen J Feltmann   +6 more
core   +2 more sources

Testing the Challenge Hypothesis in Stumptail Macaque Males: The Role of Testosterone and Glucocorticoid Metabolites in Aggressive and Mating Behavior

open access: yesBiology, 2023
The “challenge hypothesis” predicts higher male–male aggressive behavior along with increases in testosterone levels during times of reproductive challenges and social instability. In addition, in some primate species, higher glucocorticoid levels can be
Ana Lilia Cerda-Molina   +6 more
doaj   +1 more source

Competition-related factors directly influence preferences for facial cues of dominance in allies [PDF]

open access: yes, 2016
Alliance formation is a critical dimension of social intelligence in political, social and biological systems. As some allies may provide greater ‘leverage’ than others during social conflict, the cognitive architecture that supports alliance formation ...
Jones, Benedict C.   +1 more
core   +5 more sources

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