{"title":"Use of Wild Date Palm (Phoenix reclinata) by Mahale Chimpanzees: A Likely Case of Social Learning via Direct Observation","authors":"M. Shimada","doi":"10.5134/236290","DOIUrl":"https://doi.org/10.5134/236290","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120876027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kazuya Toda, Nahoko Tokuyama, Shintaro Ishizuka, T. Furuichi
22 INTRODUCTION The social organization of male-philopatry is often explained by the importance of cooperation among kinrelated males to defend their group territories and the encompassed females against other neighboring groups (Williams et al. 2004; Furuichi 2006). Strong hostility between males of different groups may make male visit and immigration into neighboring groups extremely difficult. In chimpanzees (Pan troglodytes), there is a higher likelihood of intergroup killing when large male parties encounter smaller male parties or lone males of different groups (Wrangham 1999). In reality, visiting males (temporary immigrants, see Nishida et al. 1999) have been only observed twice in Bossou, Guinea (Sugiyama 1999) during the period of over 55 years observing wild chimpanzees at multiple study sites. It has been observed that male bonobos (Pan paniscus) have more tolerant relationships with out-group males than do male chimpanzees (Sakamaki et al. 2018). Therefore, the obstacles to visit or immigrate faced by bonobos might be less than those encountered by male chimpanzees. However, there has been only one report of male visits at Lomako (Hohmann 2001) and one report of male immigrations at Wamba, Democratic Republic of the Congo (Hashimoto et al. 2008). Here, we report an additional case of a temporary visit by an adult male bonobo from a neighboring group at Wamba. Moreover, the social condition and motivation of his visit are discussed referring to other cases of the Pan species in this report.
男性哲学的社会组织通常被解释为亲属男性之间合作的重要性，以保护他们的群体领土和被包围的女性对抗其他邻近群体(Williams et al. 2004;Furuichi 2006)。不同群体之间的强烈敌意可能会使男性访问和移民到邻近群体变得极其困难。在黑猩猩(泛穴居人)中，当大型雄性群体遇到较小的雄性群体或不同群体的孤独雄性时，更有可能发生群体间杀戮(Wrangham 1999)。实际上，55年来在多个研究地点观察野生黑猩猩的过程中，在几内亚的Bossou (Sugiyama 1999)只观察到两次来访的雄性(临时移民，见Nishida et al. 1999)。据观察，雄性倭黑猩猩(Pan paniscus)与群体外雄性的关系比雄性黑猩猩更宽容(Sakamaki et al. 2018)。因此，倭黑猩猩在拜访或移民时遇到的障碍可能比雄性黑猩猩要少。然而，在Lomako只有一份男性移民的报告(Hohmann 2001)，在刚果民主共和国的Wamba只有一份男性移民的报告(Hashimoto et al. 2008)。在这里，我们报告一个额外的情况下，由一个成年雄性倭黑猩猩从邻近的群体在Wamba临时访问。此外，本文还结合其他潘氏物种的情况，讨论了他的社会状况和访问动机。
{"title":"A Short-Term Visit of an Adult Male Bonobo from the Neighboring Unit-group at Wamba","authors":"Kazuya Toda, Nahoko Tokuyama, Shintaro Ishizuka, T. Furuichi","doi":"10.5134/236291","DOIUrl":"https://doi.org/10.5134/236291","url":null,"abstract":"22 INTRODUCTION The social organization of male-philopatry is often explained by the importance of cooperation among kinrelated males to defend their group territories and the encompassed females against other neighboring groups (Williams et al. 2004; Furuichi 2006). Strong hostility between males of different groups may make male visit and immigration into neighboring groups extremely difficult. In chimpanzees (Pan troglodytes), there is a higher likelihood of intergroup killing when large male parties encounter smaller male parties or lone males of different groups (Wrangham 1999). In reality, visiting males (temporary immigrants, see Nishida et al. 1999) have been only observed twice in Bossou, Guinea (Sugiyama 1999) during the period of over 55 years observing wild chimpanzees at multiple study sites. It has been observed that male bonobos (Pan paniscus) have more tolerant relationships with out-group males than do male chimpanzees (Sakamaki et al. 2018). Therefore, the obstacles to visit or immigrate faced by bonobos might be less than those encountered by male chimpanzees. However, there has been only one report of male visits at Lomako (Hohmann 2001) and one report of male immigrations at Wamba, Democratic Republic of the Congo (Hashimoto et al. 2008). Here, we report an additional case of a temporary visit by an adult male bonobo from a neighboring group at Wamba. Moreover, the social condition and motivation of his visit are discussed referring to other cases of the Pan species in this report.","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127712425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Leopards Attempted to Hunt Wild Chimpanzees at Mahale","authors":"Hitonaru Nishie","doi":"10.5134/236292","DOIUrl":"https://doi.org/10.5134/236292","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122065626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prof. Akisato Nishimura (Formerly Known as Akisato Toyoshima): A Pioneer of Chimpanzee Research in Tanzania","authors":"Michio Nakamura","doi":"10.5134/236295","DOIUrl":"https://doi.org/10.5134/236295","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126818178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takumi Tsutaya, Natsumi Aruga, Hodaka Matsuo, C. Hashimoto
{"title":"Four Cases of Grooming Sessions between Chimpanzees and Guenons at the Kalinzu Forest Reserve, Uganda","authors":"Takumi Tsutaya, Natsumi Aruga, Hodaka Matsuo, C. Hashimoto","doi":"10.5134/233028","DOIUrl":"https://doi.org/10.5134/233028","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117192664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Masturbation with a Tool by an Infant Male Chimpanzee","authors":"Michio Nakamura","doi":"10.5134/233027","DOIUrl":"https://doi.org/10.5134/233027","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"33 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121012602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Deposit and Theft? Two Unusual Interactions over Wild Plant Food between Adult Chimpanzees in Mahale","authors":"Takuya Matsumoto, Hiroko Sakuragi","doi":"10.5134/233029","DOIUrl":"https://doi.org/10.5134/233029","url":null,"abstract":"","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"11 48-49","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120924857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Associate Editors: Christophe Boesch, Max-Planck Institute, Germany Jane Goodall, Jane Goodall Institute, USA Tetsuro Matsuzawa, Kyoto University, Japan William C. McGrew, University of St. Andrews, UK John C. Mitani, University of Michigan, USA Vernon Reynolds, Budongo Forest Project, UK Yukimaru Sugiyama, Kyoto University, Japan Richard W. Wrangham, Harvard University, USA Takeshi Furuichi, Kyoto University, Japan
副编辑:Christophe Boesch，马克斯-普朗克研究所，德国Jane Goodall, Jane Goodall研究所，美国Matsuzawa哲郎，京都大学，日本William C. McGrew，圣安德鲁斯大学，英国John C. Mitani，密歇根大学，美国Vernon Reynolds, Budongo Forest Project，英国Sugiyama，京都大学，日本Richard W. Wrangham，哈佛大学，美国Takeshi Furuichi，京都大学，日本
{"title":"A Female Bonobo Sleeping on the Ground after Daytime Birth and its Implications","authors":"Heungjin Ryu","doi":"10.5134/228899","DOIUrl":"https://doi.org/10.5134/228899","url":null,"abstract":"Associate Editors: Christophe Boesch, Max-Planck Institute, Germany Jane Goodall, Jane Goodall Institute, USA Tetsuro Matsuzawa, Kyoto University, Japan William C. McGrew, University of St. Andrews, UK John C. Mitani, University of Michigan, USA Vernon Reynolds, Budongo Forest Project, UK Yukimaru Sugiyama, Kyoto University, Japan Richard W. Wrangham, Harvard University, USA Takeshi Furuichi, Kyoto University, Japan","PeriodicalId":358068,"journal":{"name":"Pan Africa News","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130856800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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