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- Pluháček, Jan; Steck, Beatrice L.; Wright, J.
- Ethology 2015 v.121 no.5 pp. 462-471
- sex allocation, etc ; Hippopotamus; animal behavior; data collection; females; herds; males; polygyny; sex ratio; sires; Show all 10 Subjects
- ... Social and reproductive systems remain among the main predictors affecting mammalian birth sex ratio. The two extant hippopotamus species differ in their social and reproductive systems. While common hippopotamus (Hippopotamus amphibius) form herds and tend to be polygynous, solitary living pygmy hippopotamus (Choeropsis liberiensis) are promiscuous. Although it is one of the most studied topics, ...
- Calsbeek, R.; Duryea, M. C.; Goedert, D.; Bergeron, P.; Cox, R. M.
- Journal of evolutionary biology 2015 v.28 no.11 pp. 1975-1985
- sex allocation, etc ; Anolis; body size; breeding season; correlation; daughters; females; genetic correlation; heritability; lizards; males; prediction; sexual maturity; sires; sons; variance; viability; Show all 17 Subjects
- ... Intralocus sexual conflict arises when selection favours alternative fitness optima in males and females. Unresolved conflict can create negative between‐sex genetic correlations for fitness, such that high‐fitness parents produce high‐fitness progeny of their same sex, but low‐fitness progeny of the opposite sex. This cost of sexual conflict could be mitigated if high‐fitness parents bias sex all ...