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Science (American Association for the Advancement of Science), 2000-11, Vol.290 (5494), p.1168-1170
Ort / Verlag
Washington, DC: American Society for the Advancement of Science
Erscheinungsjahr
2000
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
The behavioral and ecological factors involved in immune system evolution remain poorly explored. We present a phylogenetic analysis of white blood cell counts in primates to test three hypotheses related to disease risk: increases in risk are expected with group size or population density, exposure to soil-borne pathogens, and mating promiscuity. White blood cell counts were significantly greater in species where females have more mating partners, indicating that the risk of sexually transmitted disease is likely to be a major factor leading to systematic differences in the primate immune system.