Tsurui Kaori



Associate Professor

Researcher Number(JSPS Kakenhi)


Homepage URL


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Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Faculty of Agriculture   Subtropical Agro-Environmental Sciences   Associate Professor  

Affiliated academic organizations 【 display / non-display









Research Interests 【 display / non-display

  • 行動生態学・昆虫・グッピー

  • Invasive species

  • Guppy

  • Mosquitofish

  • Crypsis

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Research Areas 【 display / non-display

  • Life Science / Ecology and environment

Published Papers 【 display / non-display

  • Alternative reproductive tactics in male freshwater fish influence the accuracy of species recognition

    Shingo Fujimoto, Kaori Tsurui‐Sato, Naotaka Katsube, Haruki Tatsuta, Kazuki Tsuji

    Ecology and Evolution ( Wiley )    2021.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Female Marking via Rubidium-Labeled Ejaculates in the West Indian Sweetpotato Weevil (Coleoptera: Curculionidae)

    Norikuni Kumano, Kaori Tsurui-Sato, Kiyohito Teruya, Tetsuya Toyosato

    Journal of Economic Entomology ( Oxford University Press (OUP) )  114 ( 3 ) 1411 - 1414   2021.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    <jats:title>Abstract</jats:title> <jats:p>The West Indian sweetpotato weevil, Euscepes postfasciatus (Fairmaire), is one of the pests of the sweet potato, Ipomoea batatas, in tropical and subtropical countries. Although an eradication program using the sterile insect technique (SIT) for this weevil is now underway in Japan, the lack of potent attractants such as sex pheromones for this weevil species prevents effective monitoring and hampers pest control operations. New methods to monitor the performance of sterile males using trapped wild females are needed. In this study, we tested whether the ejaculate of the labeled males that were fed an artificial diet labeled with the trace element, rubidium (Rb), is detectable in the fertilized females. We fed an artificial diet treated with Rb (1.00, 0.50, 0.25, and 0.00%) to adult male weevils for 14 d after emerging and quantified the rubidium content in inseminated females. We also examined the side effects of the artificial diet on mating performance and longevity. The advantages of monitoring the spatial level of sterility using data from females labeled with ejaculate of Rb-fed males in an SIT eradication program are discussed.</jats:p>

  • Population genetic structure and evolution of Batesian mimicry in Papilio polytes from the Ryukyu Islands, Japan, analyzed by genotyping‐by‐sequencing

    Yukuto Sato, Kaori Tsurui‐Sato, Mitsuho Katoh, Ryosuke Kimura, Haruki Tatsuta, Kazuki Tsuji

    Ecology and Evolution ( Wiley )  11 ( 2 ) 872 - 886   2021.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Intraspecific Adaptation Load: A Mechanism for Species Coexistence.

    Masato Yamamichi, Daisuke Kyogoku, Ryosuke Iritani, Kazuya Kobayashi, Yuma Takahashi, Kaori Tsurui-Sato, Akira Yamawo, Shigeto Dobata, Kazuki Tsuji, Michio Kondoh

    Trends in ecology & evolution     2020.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    Evolutionary ecological theory suggests that selection arising from interactions with conspecifics, such as sexual and kin selection, may result in evolution of intraspecific conflicts and evolutionary 'tragedy of the commons'. Here, we propose that such an evolution of conspecific conflicts may affect population dynamics in a way that enhances species coexistence. Empirical evidence and theoretical models suggest that more abundant species is more susceptible to invasion of 'selfish' individuals that increase their own reproductive success at the expense of population growth (intraspecific adaptation load). The density-dependent intraspecific adaptation load gives rise to a self-regulation mechanism at the population level, and stabilizes species coexistence at the community level by negative frequency-dependence.

  • Idea paper: Airport ecology, an environment without predation pressure drives evolution

    Ryota Hayashi, Kaori Tsurui-Sato

    ECOLOGICAL RESEARCH ( WILEY )  35 ( 4 ) 579 - 582   2020.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    Evolutionary changes in organisms are directly observable, and they can occur rapidly in the presence of strong natural selection. Here, we present the "airport ecology" to describe the rapid evolution of animals. The pygmy grasshopperTetrix japonicaexhibits significant variations in pronotum color and markings and is a good model organism for "airport ecology." There are trade-offs in black-spot markings in the pygmy grasshoppers; although it helps in camouflaging and reducing predation pressure, it stimulates overheating, resulting in a reduction in mating opportunities and foraging success under high solar irradiance. Therefore, the frequency of black-spotted morphs is lower at lower latitudes than at higher latitudes along a latitudinal cline. However, in an airport where predation pressure is reduced by the removal of predatory bird populations, we predict that the frequency of black-spotted morphs ofT. japonicawill be lower in habitats without predators than in those with predators at the same latitude; this demonstrates the anthropogenic effect onT. japonicapolymorphism. As suggested here, predator-free environments such as airports are valuable for illustrating the effects of anthropogenic activity on animal evolution. These findings can be extended to several other species that are found around airports and are potentially preferred by avian predators in terms of not only rapid evolution of color polymorphism but also evolution of various life-history traits.

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Other Papers 【 display / non-display

Presentations 【 display / non-display

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SDGs 【 display / non-display

  • 外来淡水魚の侵入先における進化と種間競争

  • チョウの進化生態学(擬態・ゲノム)

  • 検疫害虫の防除(主にサツマイモの害虫となるゾウムシ類)

  • 昆虫の捕食回避(隠蔽などの視覚効果や自切などの逃避行動)

  • 空気中の水蒸気から製造した純水を活用した持続可能な完全閉鎖型陸上養殖技術開発に関する研究