Ian R. Stevenson

Dominant rams lose out by sperm depletion

Brian T. Preston, Ian R. Stevenson, Josephine M. Pemberton et al. · Nature · 2001 · 389 citations

Infertility, Fertility, Genetics +7

Overt and covert competition in a promiscuous mammal: the importance of weaponry and testes size to male reproductive success

Brian T. Preston, Ian R. Stevenson, Josephine M. Pemberton et al. · Proceedings of the Royal Society B Biological Sciences · 2003 · 359 citations · Full text

Breeding Behavior, Fertility, Fitness +16

Competition and mutualism among the gut helminths of a mammalian host

Joanne Lello, Brian Boag, Ian R. Stevenson et al. · Nature · 2004 · 337 citations · Full text

Biology, Helminthology, Natural Sciences +10

Climate change and constraints on breeding

Ian R. Stevenson, David M. Bryant · Nature · 2000 · 233 citations

Breeding Behavior, Evolutionary Biology, Breeding +1

Population Fluctuations, Reproductive Costs and Life-History Tactics in Female Soay Sheep

T. H. Clutton‐Brock, Ian R. Stevenson, Paul Marrow et al. · Journal of Animal Ecology · 1996 · 232 citations