Quantifying synchrony among reproductive or other states
作者:
Ramon J. Rhine,
期刊:
American Journal of Primatology
(WILEY Available online 1995)
卷期:
Volume 36,
issue 3
页码: 201-212
ISSN:0275-2565
年代: 1995
DOI:10.1002/ajp.1350360304
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: measurement;group synchrony;individual synchrony
数据来源: WILEY
摘要:
AbstractSynchrony among reproductive or other states is a widespread phenomenon of significance in evolutionary theory. A model is presented for use in the measurement of the degree of synchrony in any set of behavioral or biological states, such as menstrual cycling, pregnancy, or lactation. At a given time, maximum group synchrony occurs when all members of a group are in a single state, minimum synchrony occurs when equal numbers are in all states, and intermediate values of synchrony occur for other proportional representations of the states. The model yields group synchrony scores ranging from 0 to 100 by standardizing the average of the absolute deviations among frequencies of occurrence in pairs of states. In addition, individual synchrony is characterized by the proportion of others who share an individual's state at a specified set of times. Properties of the model are discussed, simplified calculation procedures are presented, and the method's usefulness for comparative purposes is illustrated. © 1995 Wiley‐Liss, I
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