Genetic relatedness and dispersal patterns in proboscis monkeys

2017 Fiscal Year Final Research Report

• Project/Area Number: 26711027
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Physical anthropology
• Research Institution: Chubu University (2016-2017); Kyoto University (2014-2015)
• Principal Investigator: MATSUDA Ikki 中部大学, 創発学術院, 准教授 (90533480)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: テングザル / 重層社会

Outline of Final Research Achievements

Among primate social systems, the multilevel society, in which smaller levels of social organization aggregate into larger units, is one of the most complex. Several nonhuman primate species including my study subject, i.e., proboscis monkeys, are characterized by multilevel societies. To achieve a better understanding of both the proximate mechanisms maintaining and the selective factors underlying proboscis monkey multilevel social systems, we examined their genetic patterns. In this study, we revealed the relatedness among individuals both in the one-male-multifemale and all-male groups. In addition, based on the data collected via the direct behavioural observation, I also potentially indicated the possibility of the high male-male competitions for females in their multilevel social system.

Free Research Field

霊長類学