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Kitayama Haruka

Faculty of Environmental Earth Science Environmental Biology Ecological GeneticsSpecially Appointed Assistant Professor

Researcher basic information

■ Degree
  • Bachelor of Science, Hokkaido University, Mar. 2020
  • Master of Environmental Science, Hokkaido University, Mar. 2022
  • Ph.D. (Environmental Science), Hokkaido University, Mar. 2026
■ URL
researchmap URLホームページURL■ Various IDs
Researcher number
  • 60994150
ORCID IDJ-Global ID■ Research Keywords and Fields
Research Keyword
  • Mixed-species group
  • Primatology
  • Socio-ecology
  • Genomics
  • Population genetics
  • Primate
  • Guenon
  • Red-tailed monkey
  • Blue monkey
  • Japanese macaque
  • Spider monkey
  • Social microbiome
  • Gut microbiome
  • Genome introgression
  • Interspecific hybridization
  • Africa
  • Uganda
Research Field
  • Life Science, Physical anthropology, Primatology
  • Life Science, Ecology and environment
  • Life Science, Genome biology
  • Life Science, Evolutionary biology

Career

■ Career
Career
  • Apr. 2026 - Present
    Faculty of Environmental Earth Science, Hokkaido University (concurrent appointment), Institute for Integrated Innovations, Hokkaido University, Specially Appointed Assistant Professor
  • Apr. 2022 - Mar. 2025
    Japan Society for the Promotion of Science, Research Fellow-DC1
Educational Background
  • Apr. 2020 - Mar. 2026, Hokkaido University, Graduate School of Environment Science, Division of Biosphere Science, Course in Ecological Genetics
  • Apr. 2015 - Mar. 2020, Hokkaido University, School of Science, Biological Sciences, Biology
  • Apr. 2012 - Mar. 2015, Sasebo-Kita High School
Committee Memberships
  • Feb. 2024 - Jul. 2025
    日本霊長類学会, 助成制度・支援制度タスクフォース, Society
  • Apr. 2022 - Jul. 2023
    日本霊長類学会, アンケート調査ワーキンググループ, Society

Research activity information

■ Awards
  • Jul. 2023, Primate Society of Japan, Excellent Poster Award
    Male takeover and subsequent coexistence by two adult males in blue monkey in the Kalinzu Forest
    Haruka Kitayama, Chie Hashimoto
  • Jun. 2022, Japan Student Services Organization, Exemption from repayment for graduate school students with particularly outstanding academic achievements (one half)
    Haruka Kitayama
  • Mar. 2022, Primates Conference, Best Oral Presentation Award
    グエノン類の混群形成と遺伝子浸透〜混群はどこまで混ざるのか?
    Haruka Kitayama, Akito Toge, Chie Hashimoto, Hiroshi Ihobe, Hiroo Imai, Takeshi Furuichi, Takashi Hayakawa
  • Jan. 2020, Primates Conference, Best Poster Award
    How many species of spider monkeys are captive in Japan? -Reconsidering the phylogeny of Ateles species-
    Haruka Kitayama;Atsushi Shirai;Kei Nemoto;Yuko Tawa, Koshiro Watanuki, Takashi Hayakawa
  • Jan. 2020, Hokkaido University, MVP Award
    How many species of spider monkeys are captive in Japan? -Reconsidering the phylogeny of Ateles species-
    Haruka Kitayama
■ Papers
  • Carbon and Nitrogen Stable Isotopic Profiling of Chimpanzees and Monkeys in Kalinzu Forest Reserve, Uganda
    Takumi Tsutaya; Natsumi Aruga; Naoto F. Ishikawa; Yoko Sasaki; Haruka Kitayama; Minoru Yoneda; Nana O. Ogawa; Naohiko Ohkouchi; Chie Hashimoto
    American Journal of Primatology, 88, 1, Wiley, 20 Jan. 2026, [Peer-reviewed]
    Scientific journal, Abstract

    Stable isotope analysis is a widely used tool in primate ecology for investigating diet and environment, with numerous studies focusing on chimpanzees. However, few studies have used this method to explore the dietary niche of chimpanzees in comparison to other primates or examined intra‐individual dietary variability. This limitation hinders the understanding of the comparability of stable isotopic data with the wealth of behavioral observational data in primate ecology. We report the carbon and nitrogen stable isotope ratios of hairs from wild eastern chimpanzees ( Pan troglodytes schweinfurthii ) and four other primate species ( Cercopithecus mitis , Cercopithecus ascanius , Allochrocebus lhoesti , and Colobus guereza ) in the Kalinzu Forest Reserve, Uganda. Bulk analysis revealed that both plant foods and chimpanzees in Kalinzu exhibited lower carbon stable isotope ratios than expected for the region's rainfall. Inter‐species comparison of bulk stable isotope ratios and preliminary compound‐specific nitrogen stable isotope analysis of amino acids revealed that chimpanzees in Kalinzu have a lower degree of faunivory than the sympatric monkeys. Furthermore, ultra‐fine sectioning of a hair sample was conducted to investigate dietary variation over daily to weekly timescales. In one adult male chimpanzee, carbon and nitrogen stable isotope ratios fluctuated by more than 1‰ within approximately 10 days. These findings highlight the importance of recognizing uncontrolled ecological variability and hidden intra‐individual dietary changes when interpreting stable isotope data in relation to behavior and environmental traits.
  • Population genetics of captive spider monkeys in Japan for ex situ conservation
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    Primates, 66, 4, 375, 389, Springer Science and Business Media LLC, 06 May 2025, [Peer-reviewed], [Lead author]
    Scientific journal
  • Questionnaire results regarding the future vision of the Primate Society of Japan (PSJ) in 2022
    Yoshiki MORIMITSU; Mieko KIYONO; Yumi YAMANASHI; Takumi TSUTAYA; Aru TOYODA; Kazunari MATSUDAIRA; Yuki KINOSHITA; Makiko TAKE; Haruka KITAYAMA
    Primate Research, 39, 1, 13, 34, Primate Society of Japan, 20 Jun. 2023, [Peer-reviewed]
    Scientific journal
  • Eighty million years of rapid evolution of the primate Y chromosome
    Yang Zhou; Xiaoyu Zhan; Jiazheng Jin; Long Zhou; Juraj Bergman; Xuemei Li; Marjolaine Marie C. Rousselle; Meritxell Riera Belles; Lan Zhao; Miaoquan Fang; Jiawei Chen; Qi Fang; Lukas Kuderna; Tomas Marques-Bonet; Haruka Kitayama; Takashi Hayakawa; Yong-Gang Yao; Huanming Yang; David N. Cooper; Xiaoguang Qi; Dong-Dong Wu; Mikkel Heide Schierup; Guojie Zhang
    Nature Ecology & Evolution, 7, 7, 1114, 1130, Springer Science and Business Media LLC, 02 Jun. 2023, [Peer-reviewed]
    Scientific journal
■ Other Activities and Achievements
  • トンビが空に輪を描いて
    Haruka Kitayama, Fieldnet "From "Fields" around the World", Jun. 2026, [Lead author]
    Japanese, Others
  • ウガンダの森の“混ざる”サルたち
    Haruka Kitayama, Japan Monkey Centre, "Monkey", 8, 2, 50, 51, Sep. 2023, [Lead author]
    Introduction commerce magazine
■ Books and other publications
  • 哺乳類学の百科事典
    北山遼, 第7章 哺乳類の生態 「混群」
    丸善出版, 29 Nov. 2025, 4621311964, 548, 288-289, Japanese, Dictionary or encycropedia, [Contributor]
■ Lectures, oral presentations, etc.
  • 温泉に入るニホンザルにおける腸内微生物群集の機能的収束
    北山遼
    2026年度ニホンザル研究セミナー, 19 Jul. 2026, Invited oral presentation
    19 Jul. 2026 - 19 Jul. 2026, [Invited]
  • When Two Monkey Species Mix: A Social Microbiome Study of Mixed-Species Groups of Guenons in Uganda
    Haruka Kitayama
    Seminar in Parque Dois Irmãos/Universidade Federal de Pernambuco/Universidade Federal Rural de Pernambuco, Brazil, 14 Sep. 2025, English, Public discourse
    14 Sep. 2025 - 14 Sep. 2025, [Invited]
  • 温泉に入るニホンザルの腸内微生物群集の解析からハダカのつきあいの効果を探る
    北山遼; 熊倉大騎; 井副和貴; 王雪瑩; 松本卓也; 早川卓志
    日本哺乳類学会2025年度大会, 23 Aug. 2025, Japanese, Poster presentation
    22 Aug. 2025 - 25 Aug. 2025
  • Interspecific interaction shapes the landscape of gut microbiome in mixed-species groups of blue monkey and red-tailed monkey in the Kalinzu Central Forest Reserve, Uganda
    Haruka Kitayama; Chie Hashimoto; Takashi Hayakawa
    International Primatological Society Congress XXX, 23 Jul. 2025, English, Poster presentation
    20 Jul. 2025 - 25 Jul. 2025
  • 笹食に注目した長野県のニホンザルのメタゲノム比較解析
    王雪瑩; 北山遼; 土橋彩加; 竹中將起; 長原衣麻; 井副和貴; 松本卓也; 早川卓志
    第41回日本霊長類学会大会, 12 Jul. 2025, Japanese, Poster presentation
    11 Jul. 2025 - 13 Jul. 2025
  • 飼育下のメスのチンパンジーにおける性器擦り行動のビデオ記録:ボノボとの比較から見る今後の展望
    横山拓真; Jaock Kim; 高岡智子; 北山遼; 早川卓志
    第41回日本霊長類学会大会, 12 Jul. 2025, Japanese, Oral presentation
    11 Jul. 2025 - 13 Jul. 2025
  • 混群をつくるアカオザルとブルーモンキーの腸内マイクロバイオームの多群比較
    北山遼; 橋本千絵; 早川卓志
    第41回日本霊長類学会大会, 12 Jul. 2025, Japanese, Oral presentation
    11 Jul. 2025 - 13 Jul. 2025
  • Bridging gut microbiome network through interspecific interaction between red-tailed monkeys and blue monkeys
    Haruka Kitayama; Chie Hashimoto; Takashi Hayakawa
    第72回日本生態学会大会, 16 Mar. 2025, Japanese, Poster presentation
    15 Mar. 2025 - 18 Mar. 2025
  • 基礎研究の魅力を市民と分かち合う:デジタル展示ARCaDEの提案
    竹内颯; 近藤虎太郎; 明石涼; 北山遼; 早川卓志
    第26回日本進化学会年大会, 21 Aug. 2024, Poster presentation
    21 Aug. 2024 - 24 Aug. 2024
  • アカオザルとブルーモンキーの混群の形成要因を“腸内細菌”から探る
    北山遼
    哺乳類交流ゼミ, 08 Aug. 2024, Invited oral presentation
    [Invited]
  • Exome analysis in Japanese macaque populations feeding on bamboo
    Xueying WANG; Haruka KITAYAMA; Nami HASHIDO; Ayaka TSUCHIHASHI; Takeaki HONDA; Masaki TAKENAKA; Ema NAGAHARA; Goro HANYA; Yasuhiro GO; Shoji TATSUMOTO; Takuya MATSUMOTO; Takashi HAYAKAWA
    第40回日本霊長類学会大会, 13 Jul. 2024, Japanese, Poster presentation
    12 Jul. 2024 - 14 Jul. 2024
  • Considering mixed-species groups of guenons from the framework of social microbiome
    Haruka Kitayama; Chie Hashimoto; Takashi Hayakawa
    第40回日本霊長類学会大会, 13 Jul. 2024, Oral presentation
    12 Jul. 2024 - 14 Jul. 2024
  • A socio-ecological and genomic approach to mixed-species formation of African forest guenons
    Haruka Kitayama
    RIKEN iTHEMS Biology Seminar, 04 Apr. 2024, English, Public discourse
    04 Apr. 2024 - 04 Apr. 2024, [Invited]
  • Social microbiome of a mixed-species group of red-tailed monkey and blue monkey in the Kalinzu Forest
    Haruka Kitayama
    WRC Seminars in FY2023, 12 Mar. 2024, Public discourse
    12 Mar. 2024 - 12 Mar. 2024, [Invited]
  • 混群をつくるアカオザルとブルーモンキーの社会マイクロバイオーム
    北山遼; 橋本千絵; 早川卓志
    第五回動物園水族館大学シンポジウム, 09 Mar. 2024, Japanese, Poster presentation
    09 Mar. 2024 - 10 Mar. 2024
  • オナガザルの排泄と社会-ウガンダの混群と地獄谷の温泉サルの社会マイクロバイオーム-
    Haruka Kitayama
    第2回「排泄の自然誌を編む」研究会公開シンポジウム:出すことと出たものへのまなざし, 10 Feb. 2024, Nominated symposium
    10 Feb. 2024, [Invited]
  • Ecological genomic study on mixed-species groups of African forest guenons
    Haruka Kitayama
    Seminar in Universidade Federal de Pernambuco, Brazil, 25 Jul. 2023, Public discourse
    [Invited]
  • Male takeover and subsequent coexistence by two adult males in blue monkey in the Kalinzu Forest
    Haruka Kitayama; Chie Hashimoto
    第39回日本霊長類学会大会, 08 Jul. 2023, Poster presentation
    07 Jul. 2023 - 09 Jul. 2023
  • Gene introgression in the mixed-species population of guenons, the family Cercopithecidae
    Haruka Kitayama; Akito Toge; Chie Hashimoto; Hiroshi Ihobe; Hiroo Imai; Takeshi Furuichi; Takashi Hayakawa
    第70回日本生態学会大会, 17 Mar. 2023, Poster presentation
    17 Mar. 2023 - 21 Mar. 2023
  • Genomic introgression in the mixed species populations of guenons
    Haruka Kitayama
    Seminar in Makerere University, Uganda, 04 Jan. 2023, Public discourse
    [Invited]
  • 長野県地獄谷温泉における複数源泉間での微生物叢の不均一性の調査
    Yuki Teramori; Daiki Kumakura; Haruka Kitayama; Takashi Hayakawa; Takuya Matsumoto
    日本微生物生態学会第35回大会, 31 Oct. 2022, Poster presentation
    31 Oct. 2022 - 03 Nov. 2022
  • ニホンザルの入浴がもたらす地獄谷温泉微生物叢の多様性
    Daiki Kumakura; Haruka Kitayama; Yuki Teramori; Takuya Matsumoto; Takashi Hayakawa
    日本微生物生態学会第35回大会, 31 Oct. 2022, Poster presentation
    31 Oct. 2022 - 03 Nov. 2022
  • グエノン類の混群形成と遺伝子浸透〜混群はどこまで混ざるのか?
    Haruka Kitayama; Akito Toge; Chie Hashimoto; Hiroshi Ihobe; Hiroo Imai; Takeshi Furuichi; Takashi Hayakawa
    第66回プリマーテス研究会, 27 Mar. 2022, Oral presentation
    27 Mar. 2022 - 27 Mar. 2022
  • 遺伝子から探るグエノン類の混群形成メカニズム
    Haruka Kitayama
    共同利用研究会・第50回ホミニゼーション研究会 「人類進化と遺伝子」, 23 Mar. 2022, Oral presentation
    22 Mar. 2022 - 23 Mar. 2022
  • Whole genome from hair of threatened mammals: A lesson from the Madagascar's aye-aye
    Takashi Hayakawa; Haruka Kitayama
    Biodiversity Genomics 2021, 30 Sep. 2021, Oral presentation
    27 Sep. 2021 - 01 Oct. 2021
  • Ex-situ conservation genetics contributes to spider monkeys in Japan
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    The 2nd AsiaEvo Conference, 17 Aug. 2021, Poster presentation
    16 Aug. 2021 - 19 Aug. 2021
  • ゲノムから探るグエノン類の混群形成メカニズム
    Haruka Kitayama; Akito Toge; Chie Hashimoto; Hiroshi Ihobe; Hiroo Imai; Takeshi Furuichi; Takashi Hayakawa
    第65回プリマーテス研究会, 06 Mar. 2021, Oral presentation
    06 Mar. 2021 - 06 Mar. 2021
  • Population genetic analysis reveals the genetic diversity of captive spider monkeys in Japan
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    第36回日本霊長類学会大会, 05 Dec. 2020, Poster presentation
    04 Dec. 2020 - 05 Dec. 2020
  • Zoo acts as a “melting pot” of spider monkeys
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    The 14th International Symposium on Primatology and Wildlife Science, 11 Sep. 2020, Poster presentation
    11 Sep. 2020 - 12 Sep. 2020
  • Zoos act like “melting pots” of spider monkeys
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    第22回日本進化学会年大会, 08 Sep. 2020, Poster presentation
    06 Sep. 2020 - 09 Sep. 2020
  • How many species of spider monkeys are captive in Japan? -Reconsidering the phylogeny of Ateles species-
    Haruka Kitayama; Atsushi Shirai; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    第64回プリマーテス研究会, 25 Jan. 2020, Poster presentation
    25 Jan. 2020 - 26 Jan. 2020
  • シカ糞採取に捧げた夏休み。~奈良公園のニホンジカの遺伝的多様性解析~
    明石涼; 北山遼; 高木俊人; 玉手英利; 立澤史郎; 早川卓志
    日本生態学会2019年度北海道地区大会, 30 Nov. 2019, Poster presentation
    30 Nov. 2019 - 30 Nov. 2019
  • モンキーセンターのクモザルは3種じゃない!? 〜新世界ザルにおける集団遺伝学解析のための汎用遺伝マーカーの検証〜
    Haruka Kitayama; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    第22回アフリカ・アジアに生きる大型類人猿を支援する集い (SAGA22), 16 Nov. 2019, Poster presentation
    16 Nov. 2019 - 17 Nov. 2019
  • 非侵襲的試料を用いた奈良公園のニホンジカの多様性解析
    明石涼; 北山遼; 高木俊人; 玉手英利; 立澤史郎; 早川卓志
    第5回北海道大学部局横断シンポジウム, 06 Nov. 2019, Poster presentation
    06 Nov. 2019 - 06 Nov. 2019
  • 新世界ザルにおける集団遺伝学的解析のための汎用遺伝マーカーの検証
    Haruka Kitayama; Kei Nemoto; Yuko Tawa; Koshiro Watanuki; Takashi Hayakawa
    第5回北海道大学部局横断シンポジウム, 06 Nov. 2019, Poster presentation
    06 Nov. 2019 - 06 Nov. 2019
■ Affiliated academic society
  • Jul. 2025 - Present
    日本哺乳類学会
  • Jan. 2025 - Present
    International Primatological Society
  • Oct. 2022 - Present
    The Ecological Society of Japan
  • Jul. 2020 - Present
    Society of Evolutionary Studies, Japan
  • Apr. 2020 - Present
    Primate Society of Japan
■ Research Themes
  • 熱帯林の垂直構造が同所性霊長類間の微生物伝播にもたらす方向性と選択性
    科学研究費助成事業
    31 Jul. 2026 - 31 Mar. 2028
    北山 遼
    日本学術振興会, 研究活動スタート支援, 北海道大学, 26K24931
  • 山岳水圏における微生物学的景観と来訪する動物相の関係の解明
    信州大学 社会実装研究クラスター 山岳科学研究所 公募型研究助成
    May 2026 - Mar. 2027
    北山遼
    信州大学, 社会実装研究クラスター 山岳科学研究所, Principal investigator
  • Elucidating the genomic basis of gut microbiota that enables intra- and interspecific social transmission among hosts, and their symbiotic mechanisms with host species
    Joint Usage/Research with WRC, Kyoto University
    Apr. 2025 - Mar. 2026
    北山遼
    Kyoto University, Wildlife Research Centre, Kyoto University, Principal investigator, 2025-A-39
  • オナガザル類の混群形成要因の解明:ゲノム浸透と社会マイクロバイオームに着目して(基盤に変更)
    科学研究費助成事業
    Mar. 2023 - Mar. 2025
    Haruka Kitayama
    日本学術振興会, 特別研究員奨励費, 北海道大学, Principal investigator, 22KJ0136
  • オナガザル類の混群形成要因の解明:ゲノム浸透と社会マイクロバイオームに着目して
    科学研究費助成事業
    Apr. 2022 - Mar. 2025
    北山遼
    日本学術振興会, 特別研究員奨励費, 北海道大学, 22J21955
  • The study of the social microbiome in mixed-species groups of guenons
    JSPS Overseas Challenge Program for Young Researchers
    Aug. 2022 - Jan. 2023
    Haruka Kitayama
    Japan Society for the Promotion of Science, Principal investigator, 202280256
  • グエノン類の混群形成メカニズム解明のための遺伝マーカーの検討(継続課題)
    共同利用・共同研究
    Apr. 2021 - Mar. 2022
    Haruka Kitayama
    京都大学霊長類研究所, 京都大学霊長類研究所, Principal investigator, 2021-A-38
  • グエノン類の混群形成メカニズム解明のための遺伝マーカーの検討
    共同利用・共同研究
    Apr. 2020 - Mar. 2021
    Haruka Kitayama
    京都大学霊長類研究所, 京都大学霊長類研究所, Principal investigator, 2020-A-13
■ Academic and Social Contribution Activities/Other
Social Contribution Activities
  • おなかの中にもサルの社会?ー混群をつくるアカオザルとブルーモンキーの腸内細菌研究
    12 Jul. 2026 - 12 Jul. 2026
    Appearance, Lecturer
    公益財団法人日本モンキーセンター
    モンキー日曜サロン
    モンキー日曜サロン
  • taste the sky (GUEST:北山 遼(北海道大学 特任助教))
    13 Apr. 2026 - 16 Apr. 2026
    Appearance
    FM NORTH WAVE
    cottonsky
  • 動物の共生関係についての解説
    04 Jun. 2025 - 04 Jun. 2025
    Lecturer
    佐伯市立米水津小学校
    国語(4年生)「ヤドカリとイソギンチャク」の授業に関連して
  • 学ぶこと、究めること-サルの群れから自分を知りたい霊長類学者の話-
    21 Mar. 2025 - 21 Mar. 2025
    Lecturer
    長崎県立佐世保南高等学校
    大学院生との交流会
  • 混ざるサルのナゾを追って 〜ウガンダの森で考える、ともに生きるということ〜
    11 Aug. 2024
    Appearance, Panelist
    札幌市円山動物園
    アフリカ写真展・講演会
    札幌市円山動物園
  • What Do Monkeys Share in Their Groups?
    17 Dec. 2023
    Appearance, Planner
    Kalinzu Forest Project
    Sunday School in Kayanga village, Uganda
  • Friendship and Bacteria between Red-tailed Monkey and Blue Monkey
    11 Dec. 2022 - 11 Dec. 2022
    Appearance, Planner
    Kalinzu Forest Project
    Sunday School in Kayanga village, Uganda
  • 北大早川研×はこだてみらい館特別企画「語ろう!どうぶつ in 函館~サル編~」
    22 Aug. 2020 - 22 Aug. 2020
    Appearance, Planner, Organizing member
    北海道大学早川研究室, はこだてみらい館
    はこだて国際科学祭
Media CoverageOthers
  • Apr. 2022 - Present
    EZOゼミ, 共同世話人
    https://ezo-zemi.wixsite.com/ezozemi
  • Aug. 2025 - Aug. 2025
    日本哺乳類学会2025年度大会企画フォーラム「哺乳類学会員若手交流会」, メンター
    https://sites.google.com/view/msj2024-symposium/%E3%83%9B%E3%83%BC%E3%83%A0