Updated on 2026/03/13

写真a

 
KAJITA Rui
 
Organization
Sado Island Center for Ecological Sustainability . Specially Appointed Assistant Professor
Title
Specially Appointed Assistant Professor
External link

Degree

  • 博士（農学） ( 2025.3   名古屋大学 )

  • 修士（農学） ( 2022.3   名古屋大学 )

  • 学士（農学） ( 2020.3   名古屋大学 )

Research Interests

  • 昆虫

  • ドングリ

  • 生態学

  • 動物行動学

  • 採餌戦略

  • 野ネズミ

Research Areas

  • Life Science / Ecology and environment  / 動物行動学、野ネズミ

Research History (researchmap)

Research History

  • Niigata University   Specially Appointed Assistant Professor

    2026.1

Education

  • Nagoya University   Graduate School of Bioagricultural Sciences   森林・環境資源科学専攻

    2022.4 - 2025.3

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    Notes： 博士後期課程

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  • Nagoya University   Graduate School of Bioagricultural Sciences   森林・環境資源科学専攻

    2020.4 - 2022.3

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    Notes： 博士前期課程

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  • Nagoya University   School of Agricultural Sciences   Department of Bioenvironmental Sciences

    2016.4 - 2020.3

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Professional Memberships

  • The Entomological Society of Japan

    2026.2

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  • The Mammal Society of Japan

    2025

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  • 野生生物と社会学会

    2025

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  • The Ecological Society of Japan

    2022

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  • 日本動物行動学会

    2022 - 2024

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Committee Memberships

  • 日本哺乳類学会   大会企画・将来構想委員会 若手委員  

    2025   

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    Committee type：Academic society

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Papers

  • Foraging strategy of wood mice for undamaged and moth-infested Castanea crenata nuts on forest floor Reviewed

    Rui Kajita, Hisashi Kajimura

    Scientific Reports   2025.12

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1038/s41598-025-25025-0

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    Other Link： https://www.nature.com/articles/s41598-025-25025-0

  • Wood Mice Utilize Understory Vegetation of Leafless Dead Dwarf Bamboo Culms as a Habitat and Foraging Site Reviewed

    Rui Kajita, Hisashi Kajimura

    Diversity   16 ( 8 )   458 - 458   2024.8

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    In this study, we conducted a field survey in Aichi Prefecture, central Japan, to clarify whether rodent activity is affected by the presence or absence of dead culms of the dwarf bamboo Sasa borealis, a species characterized by a 120-year cycle of large-scale flowering, seeding, and dying. We found that a relatively larger number of wood mice, Apodemus speciosus and Apodemus argenteus, were caught using Sherman live traps in areas with dead S. borealis culms than in areas lacking the culms, thereby indicating that S. borealis culms, even if dead and leafless, can function as shelters in which the mice can evade predation. However, in the years when A. speciosus was abundant, A. argenteus avoided areas inhabited by A. speciosus and was restricted to areas lacking dead culms, which were devoid of shelter. A feeding experiment using Castanea crenata acorns clearly revealed that a larger number of acorns were foraged by mice in areas containing dead culms. Moreover, in the area with dead culms, the mice preferentially removed sound acorns prior to taking acorns that had been vacated by infesting moth larvae. These findings indicate that the shelter function of dead culms enables mice to carefully select sound acorns, which are nutritionally more beneficial than those that have been infested by moth larvae.

    DOI： 10.3390/d16080458

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Presentations

  • 兵庫県におけるツキノワグマ東中国地域個体群の夏期出没数とミズキ（液果）の結実率との関係

    梶田瑠依, 藤木大介

    第30回「野生生物と社会」学会大会  2025.12 

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    Event date： 2025.12

    Presentation type：Poster presentation  

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  • 自由集会：齧歯類の生態学2025 ～野ネズミのクリ・ミズナラ堅果の虫害堅果への反応～

    Rui Kajita

    2025.8 

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    Event date： 2025.8

    Language：Japanese  

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  • Foraging strategies of wood mice for insect-infested chestnut acorns: Do mice change their behavior depending on the type of insect infestation?

    2025.3 

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    Event date： 2025.3

    Language：English   Presentation type：Oral presentation (general)  

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  • Foraging behavior of chestnuts by wood mice : Bold destruction of burrs and Delicate selection of forest environment

    2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

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  • スズタケ枯死稈の存在はアカネズミ・ヒメネズミの活動性を変えるか？：ネズミ種関関係にも着目した捕獲調査とクリ堅果の供試実験を通じた枯死稈の役割の考察

    梶田瑠依, 梶村恒

    第13回中部森林学会大会  2023.10 

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    Event date： 2023.10

    Language：Japanese   Presentation type：Oral presentation (general)  

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  • Foraging strategy of insect-infested acorns by wood mice : comparative analysis of field experiments in opened and closed conditions

    2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Poster presentation  

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  • 森林性ネズミは虫害堅果を識別して持ち去るのか?:加害昆虫に着目して

    梶田瑠依, 梶村 恒

    日本動物行動学会第41回大会  2022.11 

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    Event date： 2022.11

    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 野ネズミの堅果選択に重要な指標を探る～虫害vsタンニン～

    梶田瑠依, 梶村恒

    2025年度日本生態学会中部地区大会  2025.11 

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    Presentation type：Oral presentation (general)  

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Awards

  • 優秀ポスター賞

    2025.12   第30回「野生生物と社会」学会大会   兵庫県におけるツキノワグマ東中国地域個体群の夏期出没数とミズキ（液果）の結実率との関係

    梶田瑠依

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  • ポスター賞 優秀賞

    2024.3   第71回日本生態学会大会   野ネズミによるクリ堅果の採餌行動：大胆な毬の破壊と繊細な森林環境の選択

    梶田瑠依

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  • 学生発表奨励賞

    2023.10   第13回中部森林学会大会   スズタケ枯死稈の存在はアカネズミ・ヒメネズミの活動性を変えるか？：ネズミ種関関係にも着目した捕獲調査とクリ堅果の供試実験を通じた枯死稈の役割の考察

    梶田瑠依

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Research Projects

  • 森林環境下における野ネズミの堅果選択の行動生態学的研究：森林更新を導く種子散布の初期過程に与える 虫害堅果と野ネズミの種間関係の影響

    2024.4 - 2025.3

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Other research activities

  • 昆虫はかせネットワーク 会員

    2025

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Teaching Experience (researchmap)

 

Social Activities

  • 愛知県のムネアカハラビロカマキリ大調査

    Role(s)： Appearance

    昆虫はかせネットワーク  昆虫はかせネットワーク勉強会2026  2026.1

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  • 「ネズミは森の設計者」小さなネズミが大きな森を作る！？ネズミの生態のひみつから森の生態系を解き明かす！

    Role(s)： Appearance,　Demonstrator

    名古屋大学博物館  見てみて！聞いてみて！触ってみて！博士学生の研究トークショー  2025.1

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  • ドングリの不思議を知る！

    Role(s)： Appearance,　Lecturer,　Demonstrator

    名古屋大学博物館  土曜学習プログラム 出張！名大博物館体験学習  2024.2

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  • かがくの実験室「身近な生き物を観察しよう！～鳥と構造色～」

    Role(s)： Organizing member

    名古屋市科学館, 名古屋大学博物館  かがくの実験室「身近な生き物を観察しよう！～鳥と構造色～」  2019.11

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  • 自然探索－名大に残された貴重な緑の“島”

    Role(s)： Appearance,　Organizing member

    名古屋大学博物館  歩いて楽しむキャンパスミュージアム  2019.3

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Media Coverage

Academic Activities

  • SSH課題研究交流会

    Role(s)： Review, evaluation

    2025.8

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    Type：Scientific advice/Review 

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