2014 Fiscal Year Annual Research Report
霊長類の社会進化に対する選択圧としての寄生虫の役割
| Project/Area Number |
24770232
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| Research Institution | Kyoto University |
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Principal Investigator |
MACINTOSH Andrew 京都大学, 野生動物研究センター, 特定准教授 (30623136)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | Primatology / Parasitology / Coevolution / International Exchange / Social Network Analysis / Wildlife Epidemiology / Disease Ecology / Behavioral Ecology |
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| Outline of Annual Research Achievements |
This project tested whether parasites are a selective force in primate social systems evolution. Experimental parasite removal from a subset of female Japanese macaques on Koshima, Miyazaki, showed that anthelmintic-treated high-ranking females were able to maintain higher body mass than low-ranking females and, more importantly, that birth rates in treated females were higher across the study. Previous studies by the PI, as well as simulation modeling conducted during this study, show that social relationships (networks) can influence parasite infection risk, so these results show for the first time that chronic parasitism can regulate primate populations and thereby affect primate social structure, making them a selective force in primate social systems evolution. In addition, this project formed the basis for two Master’s degrees (both completed), one PhD degree and one postdoctoral project, and there are currently six manuscripts either under review or in revision based on the results of this project.
Further research conducted in parallel in Malaysian Borneo has begun to scale up from this single-host multiple-parasite study system to investigate similar concepts using communities of primates and parasites to test whether not only social systems but also species assemblages and thus interactions between species are influenced by chronic parasitism. This work continues in collaboration with the Sabah Wildlife Department and Cardiff University, and formed the basis of a PhD project currently being conducted by a graduate student under my supervision.
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Research Products
(17 results)
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[Journal Article] A complete breeding failure in an Adelie penguin colony correlates with unusual, extreme environmental events2015
Author(s)
Ropert-Coudert Y, Kato A, Meyer X, Pelle; M, MacIntosh AJJ, Angelier F, Chastel O, Widmann M, Arthur B, Raymond B, Raclot T
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Journal Title
Ecography
Volume: 38
Pages: 111-113
DOI
Peer Reviewed / Open Access
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[Journal Article] Social networks in primates: smart and tolerant species have more efficient networks2014
Author(s)
Pasquaretta C, Leve; M, Claidiere N, van de Waal E, Whiten A, MacIntosh AJJ, Pele; M, Borgeaud C, Brosnan S, Crofoot M, Fedigan L, Fichtel C, Hopper L, Mareno MC, Petit O, Schnoell AV, di Sorrentino EP, Thierry B, Tiddi B, Sueur C
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Journal Title
Scientific Reports
Volume: 4
Pages: 7600
DOI
Peer Reviewed / Open Access / Acknowledgement Compliant
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