A Ten-Year Summary of Reproductive Data for Free-Ranging Macaca mulatta

摘要: Analyses were made of population statistics and reproduction parameters covering a ten-year period at the free-ranging rhesus monkey colony La Parguera, Puerto Rico. The mean annual rate increase was 13 %. Young females gave birth to their first infant four years age on average. More than 60 % births occurred during May June with an median date (1966–1972) ranging from 30 8. Females not having one year earlier next year, while large percentage giving late in season did produce year. Between 40 50 infants born or second female survive but by fourth same only 9 died 12 months. social rank adult affected several parameters: high-ranking had higher survival young low-ranking females; larger each daughters produced females. Both males survived equal proportions until age, after which mortality rates death for remained very low constant.