Snyder & Ellner present a way to partition reproductive skew into contributions from trait variation, demographic luck, and environmental luck. Repro. skew is caused largely by luck, with long life the most common cause of unusual success. Read now!
https://www.journals.uchicago.edu/doi/10.1086/730557

#reproductiveSkew #traitVariation #luck #demographicLuck #environmentalLuck

#Reproductive #inequality in #humans and other #mammals

#OpenAccess

"Data from 90 human societies & 49 mammalian species. Humans exhibit lower average sex differences in reproductive inequality than do most other mammals, while falling within the mammalian range. These small sex differences in #ReproductiveSkew are due to institutions supporting #monogamy, to a limited intensity of #polygyny and especially to heavy dependence of children on #care from both parents"

https://www.pnas.org/doi/10.1073/pnas.2220124120

So, on Twitter we had an #AnimBehav2023 conference... We wanted to focus on the “social control of reproduction” often mentioned when there is unequal distribution of reproduction (#ReproductiveSkew): some individuals reproduce a lot while others don’t (think about social insects for example)