Research field (1)：
Animals: biochemistry, physiology, behavioral science
Research theme for competitive and other funds (19)：
2021 - 2024 Factors affecting intergroup female transfer in primates: with a focus on physical and sexual development of female great apes
2018 - 2023 Evolution of menopause in Hominidae: study on sexual hormonal dynamics and reproductive strategies of female in wild great apes.
2017 - 2020 Origin of human terrestrial life influenced by climate change in the late Miocene
2016 - 2019 Ecological study of the African great apes under human disturbance
2014 - 2019 Evaluation of roles of groups and local populations in hominids: from analyses on intergroup relations and female transfer between groups
2013 - 2019 Study on the reproductive strategy in wild chimpanzees and bonobos by analyzing sexual hormonal dynamics and sexual behavior
2016 - 2018 Transmission of oral microbiotic species and food sharing in wild chimpanzees
2013 - 2017 Investigation of feeding strategies of African cercopithecids by using genetic and/or morphological methods
2013 - 2016 Comparison of Primate Communities Including Great Apes and Forest Structure
2010 - 2015 Evolution of aggressive behaviors and their control in hominids: analyses of inter- and intra-group interactions in Pan species
2009 - 2012 Relations between survival strategies and morphology of African cercopithecids
2007 - 2011 Evolutionary Anthropology of Conflicts and Resolution
2007 - 2010 Evolution of the trait of difficulty of getting pregnant : the study on extra-high frequent copulation of wild chimpanzees.
2005 - 2008 Studies on adaptation of Pan species to seasonal and local variation of environment : Towards understanding of hominid evolution in dry habitats
2005 - 2006 Study on cultural behavior of wild chimpanzees and bonobos : comparison of behavioral repertoires.
2004 - 2006 Emergence of novel behavior pattern and developmental process of cultural behavior
2000 - 2002 Studies on seasonal change in habitat use by African great apes and conservation of tropical rain forest
1998 - 2000 Comparative analysis of vegetation in the habitat of bonobos and chimpanzees using Landsat image.
1997 - 1999 Distribution of bonobos and their ecological characteristics.
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Papers (105)：
The first case of hunting and consuming an anomalure by chimpanzees (Pan troglodytes schweinfurthii) in Kalinzu forest, Uganda. 2024
Gal Badihi, Kirsty E. Graham, Charlotte Grund, Alexandra Safryghin, Adrian Soldati, Ed Donnellan, Chie Hashimoto, Joseph G. Mine, Alex K. Piel, Fiona Stewart, et al. Chimpanzee gestural exchanges share temporal structure with human language. Current Biology. 2024. 34. 14. R673-R674
北山遼, 峠明杜, 橋本千絵, 五百部裕, 今井啓雄, 古市剛史, 早川卓志. Gene introgression in the mixed-species population of guenons, the family Cercopithecidae. 日本生態学会大会講演要旨(Web). 2023. 70th
Bonobos and people at Wamba : 50 years of research
Springer 2024 ISBN:9819947871
The International Encyclopedia of Primatology
John Wiley & Sons, Inc 2017 ISBN:9781119179313
Sex Differences in Ranging and Association Patterns in Chimpanzees in Comparisonwith Bonobos.
Springer IN:Furuichi T, Yamagiwa J, Aureli F (eds.) Dispersing Primate Females: Life History and Social Strategies in Male-Philopatric Species 2015
Non-conceptive Sexual Interactions in Monkeys, Apes, and Dolphins.
Springer IN: Yamagiwa J, Karczmarski L (eds) Primates and Cetaceans: Field Research and Conservation of Complex Mammalian Societies 2014
