期刊
JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 61, 期 1, 页码 31-38出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/j.jri.2003.11.001
关键词
primates; immune system; white blood cells; evolution; sexually transmitted disease; mating systems
White blood cell (WBC) and red blood cell (RBC) counts were examined in a sample comprising 762 specimens, representing 25 genera and 38 species of captive non-human primates. Animals suffering from illnesses exhibited higher WBC counts than healthy specimens sampled during routine health checks. Analysis of basal WBC counts in healthy animals confirmed a positive correlation between higher cell counts and occurrences of multiple partner mating. This finding remained statistically significant after use of comparative analysis of independent contrasts (CAIC) to control for possible phylogenetic biases in the dataset. These findings were confirmed when using relative testis size as an independent index of mating system. By contrast, RBC counts were not significantly affected by health or correlated with mating systems. These studies confirm a correlation between WBC counts and primate mating systems, and extend the findings to include a positive correlation between WBC counts and relative testis size. However, the findings do not prove that a causal relationship between these variables exists. Further research is required to establish the evolutionary causation of basal WBC counts in primates. (C) 2003 Published by Elsevier Ireland Ltd.
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