Cited by 81Animal Behavior and ReproductionPregnancy and preeclampsia studiesEvolution and Paleontology Studies

Placentation and Maternal Investment in Mammals

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Capellini, Isabella, Venditti, Chris, Barton, Robert A.·2011·The American Naturalist

Abstract

The mammalian placenta exhibits striking interspecific morphological variation, yet the implications of such diversity for reproductive strategies and fetal development remain obscure. More invasive hemochorial placentas, in which fetal tissues directly contact the maternal blood supply, are believed to facilitate nutrient transfer, resulting in higher fetal growth rates, and to be a state of relative fetal advantage in the evolution of maternal-offspring conflict. The extent of interdigitation between maternal and fetal tissues has received less attention than invasiveness but is also potentially important because it influences the surface area for exchange. We show that although increased placental invasiveness and interdigitation are both associated with shorter gestations, interdigitation is the key variable. Gestation times associated with highly interdigitated labyrinthine placentas are 44% of those associated with less interdigitated villous and trabecular placentas. There is, however, no relationship between placental traits and neonatal body and brain size. Hence, species with more interdigitated placentas produce neonates of similar body and brain size but in less than half the time. We suggest that the effects of placental interdigitation on growth rates and the way that these are traded off against gestation length may be promising avenues for understanding the evolutionary dynamics of parent-offspring conflict.

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Crossref · 10.1086/657435

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Authors
Capellini, I., Venditti, C., & Barton, R. A.
Affiliations
  • Durham University (GB)
  • University of Reading (GB)
Venue
The American Naturalist
Published
2011-01
Volume
177
Issue
1
Pages
86-98
ISSN
  • 0003-0147 (ISSN-L)
  • 1537-5323
OpenAlex
W1982854607
Cited by
81
References
52
Citations by year
2026: 2 · 2025: 6 · 2024: 6 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 4 · 2019: 4 · 2018: 3 · 2017: 3 · 2016: 6 · 2015: 8 · 2014: 7 · 2013: 8 · 2012: 8
FWCI
6.81
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • The American Naturalist (publishedVersion)
  • PubMed (publishedVersion)
  • CentAUR (University of Reading) (acceptedVersion)
  • Durham Research Online (Durham University) (acceptedVersion)
  • Repository@Hull (Worktribe) (University of Hull) (acceptedVersion, other-oa)
  • Durham Research Online (Durham University) (submittedVersion, cc-by)
  • Research Portal (Queen's University Belfast) (submittedVersion)
Funders
  • Leverhulme Trust
  • National Institutes of Health (RR‐00165, RR 00163)
  • Directorate for Biological Sciences
  • Biotechnology and Biological Sciences Research Council (BB/E014593/1)
  • Natural Environment Research Council
  • National Center for Research Resources (RR-00 165, P51RR000165, RR-00163.)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
Keywords
placental morphology, hemochorial placenta, gestation length, maternal investment, fetal growth rate, interspecific variation, nutrient transfer, fetal development
MeSH terms
Animals, Body Weight, Brain, Biological Evolution, Female, Fetus, Mammals, Models, Biological, Organ Size, Phylogeny, Placenta, Placentation, Pregnancy, Body Size

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