Naofumi Nakagawa

Naofumi Nakagawa



Naofumi Nakagawa


Primary department

Org1 Org2 Org3 Job title
Graduate School of Science Biological Sciences   Professor


nakagawa (at)


Personal Profile

The teaching staffs, including I, of our "Laboratoty of Human Evolution Studies" never provide research theme with our students. Each of our students freely choose the theme on a basis of their own interests and complete thier studies. At the time of deciding the theme, we recomend them to go to the field to observe the monkeys/apes first although it is important to survey the previous papers. I believed it to be real thrill for the field work that they find out thier own original theme in the field. I would like you to feel such kind of moment of inspriration. This experience would offer you true confidence as an independent researcher.


Research Topics

I have studied mainly on feeding ecology of Japanese macaques and comparative feeding ecology of patas monkyes and savannah monkeys, using feeding rate (i.e., food intake, and/or intake of energy/nutients per unit time) as an original research tool. Then, my research interest have shifted into socio-ecological studies. At present, I team up with many researchers including those belonging to other universities/institutions, and go on research project to examine intraspecific variation of sexual and social behaviours in Japanese macaques with special reference to environment.


Overview of your research

My ongoing reserch themes are as follows:
(1) Cultural variation of embracing behaviour in Japanese macaques.
(2) Adaptive local variation of mating patterns, such as the total number of mounting and minutes spent till ejaculation, in Japanese macaques.
(3) Local variation of tolerance in the society of Japanese macaques and genes related to aggressiveness.
(4) Several phenomena which occured during the course of human evolution on a basis of ecological view point of patas monkeys adapted to savanna environment.
(5) Evolutional history of patrilineal society in modern human beings.


Fields of research (key words)

non-human primates, feeding ecology, socio-ecology, cultural behavior, mating behavior