Premium
Variance in intrinsic rates of growth among free‐ranging rhesus monkey groups
Author(s) -
Stucki Barbara R.,
Dow Malcolm M.,
Sade Donald Stone
Publication year - 1991
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330840208
Subject(s) - dominance (genetics) , demography , biology , population , social group , ranking (information retrieval) , statistics , mathematics , psychology , social psychology , genetics , machine learning , sociology , gene , computer science
Differential rates of intrinsic growth for the population of Macaca mulatta on Cayo Santiago partitioned by social group and dominance rank of genealogies indicate that the potential for increase is not uniformly distributed throughout the population. In the period from 1973 to 1974, high‐ranking genealogies were growing at a faster rate than low‐ranking genealogies. Large differences in r among the social groups indicate the possible existence of demographic, genetic, or social differences between groups. A random resampling procedure was employed to assess the statistical significance of differences in the intrinsic rate of growth among the 5 natural social groups and the 3 partitions formed by, respectively, lumping members of high‐, middle‐, and low‐ranking genealogies across several social groups. Comparisons among social groups shows that there are significant differences in the rate of growth between Group J and Group M, and between Group J and Group F for the period from 1973 to 1974. Among dominance ranks of genealogies, significant differences in r were found between the partitions of the high‐ and middle‐ranking genealogies. These findings suggest that differential reproductive success is influenced and maintained by underlying variations in the distribution of behavioral traits in the population.