Live and recent posts from across the Fediverse tagged #sexratio, aggregated by home.social.
Lerch and Servedio develop models to understand the importance of learning for the evolution of same-sex sexual behavior. They focus on the role of the sex ratio, rectifying previously contradictory empirical and theoretical results.
Read now!
https://www.journals.uchicago.edu/doi/10.1086/737751
Operational sex ratio (Ecology 🏞️)
In the evolutionary biology of sexual reproduction, operational sex ratio is the ratio of sexually competing males that are ready to mate to sexually competing females that are ready to mate, or alternatively the local ratio of fertilizable females to sexually active males at any given time. This differs from physical ...
https://en.wikipedia.org/wiki/Operational_sex_ratio
#OperationalSexRatio #Ecology #SexRatio #Reproduction #MatingSystems #SexualSelection
Scientists discover concerning phenomenon triggering changes in sex of rare crocodiles: ‘Shifting population dynamics’
Rising global temperatures have been linked to several critical climate issues, such as an increase in extreme weather…
#NewsBeep #News #Wildlife #AU #Australia #climateissues #extremeweatherevents #gharial #globaltemperatures #Science #sexdetermination #sexratio #SuryaSharma #Warmerclimateconditions #WildlifeInstituteofIndia
https://www.newsbeep.com/au/109419/
Scientists discover concerning phenomenon triggering changes in sex of rare crocodiles: ‘Shifting population dynamics’
Rising global temperatures have been linked to several critical climate issues, such as an increase in extreme weather…
#NewsBeep #News #Wildlife #climateissues #extremeweatherevents #gharial #globaltemperatures #Science #sexdetermination #sexratio #SuryaSharma #UK #UnitedKingdom #Warmerclimateconditions #WildlifeInstituteofIndia
https://www.newsbeep.com/uk/105009/
Why are tetrapods with ZZ/ZW sex-determination systems more male-skewed than XY/XX?. Phylogenetic analyses of a large dataset of wild #tetrapod species reveal that #SexDetermination systems influence adult #SexRatio via sex-biased adult mortality @PLOSBiology https://plos.io/43qTysJ
Long et al. clarify the relationship between parental sex roles and the population sex ratio. They find that neither the operational sex ratio (OSR), nor the adult sex ratio (ASR), nor the maturation sex ratio (MSR) are drivers of parental sex roles.
https://www.journals.uchicago.edu/doi/10.1086/733457
Atkins Coleman et al. investigate effects of parental care on offspring fitness and the extent to which adult offspring resemble their genetic parents in parental investment, revealing complex selective pressures favoring offspring sex-ratio adjustment.
https://www.journals.uchicago.edu/doi/10.1086/733104
New paper: "R.A. Fisher on J.A. Cobb's The Problem of the Sex-Ratio" (#OA)
http://hdl.handle.net/10023/28453
"Fisher's principle" of the sex ratio was first given by Cobb in 1914. Here I show that Fisher was aware of Cobb's paper.
#RonaldAylmerFisher #JohnAustinCobb #SexRatio #SexAllocation
Now available ahead of print: "Five Decades of #Data Yield No Support for #AdaptiveBiasing of #Offspring #SexRatio in Wild #Baboons (Papio cynocephalus)" by Matthew N. Zipple, Elizabeth A. Archie, Jenny Tung, Raphael S. Mututua, J. Kinyua Warutere, I. Long’ida Siodi, Jeanne Altmann, and Susan C. Alberts
New paper: "W. D. Hamilton and the golden sex ratio" (#OpenAccess)
https://doi.org/10.1016/j.jtbi.2023.111599
#GoldenRatio #SexRatio #SexAllocation #Haplodiploidy #MaleHaploidy#Image https://hotpot.ai/art-generator #OA
New paper: "The rarer-sex effect" (#OpenAccess)
https://royalsocietypublishing.org/doi/10.1098/rstb.2021.0500
Part of a #PhilTransB theme issue on "Half a century of evolutionary games"
https://royalsocietypublishing.org/toc/rstb/2023/378/1876 #SexRatio #SexAllocation #Evolution #GameTheory #UnbeatableStrategy @rsocpublishing #OA
