ArticleProceedings. Biological sciences2021
Testing hypotheses of marsupial brain size variation using phylogenetic multiple imputations and a Bayesian comparative framework.
Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Slowly but Surely: Larger Brains Improve Immature Survival in Primates.American journal of primatology · 2025Article
- Clade-specific forebrain cytoarchitectures of the extinct Tasmanian tiger.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- From fossils to mind.Communications biology · 2023Review
- The evolution of marsupial social organization.Proceedings. Biological sciences · 2022Article
- Article
- Radiating pain: venom has contributed to the diversification of the largest radiations of vertebrate and invertebrate animals.BMC ecology and evolution · 2021Article
- Testing hypotheses of marsupial brain size variation using phylogenetic multiple imputations and a Bayesian comparative framework.Proceedings. Biological sciences · 2021Article
- Intraspecific variation in animal mating signals: a test of Mayr's conjecture.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
7 authors at 5 institutions in 4 countries.
Funding
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Abstract
Considerable controversy exists about which hypotheses and variables best explain mammalian brain size variation. We use a new, high-coverage dataset of marsupial brain and body sizes, and the first phylogenetically imputed full datasets of 16 predictor variables, to model the prevalent hypotheses explaining brain size evolution using phylogenetically corrected Bayesian generalized linear mixed-effects modelling. Despite this comprehensive analysis, litter size emerges as the only significant predictor. Marsupials differ from the more frequently studied placentals in displaying a much lower diversity of reproductive traits, which are known to interact extensively with many behavioural and ecological predictors of brain size. Our results therefore suggest that studies of relative brain size evolution in placental mammals may require targeted co-analysis or adjustment of reproductive parameters like litter size, weaning age or gestation length. This supports suggestions that significant associations between behavioural or ecological variables with relative brain size may be due to a confounding influence of the extensive reproductive diversity of placental mammals.
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