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Conservation Ecology Lab
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The lab studies the relationship between people and ecosystems, aiming for a society that coexists with nature.

AboutAbout the lab
For a sustainable society that coexists with nature
The Conservation Ecology Lab studies how human activities affect ecosystems and biodiversity, and how to conserve and restore them.
Ecosystem services, the benefits that ecosystems provide to people, and the relationship between people and nature are also important themes.
The lab's work goes beyond ecology as a branch of biology. It includes research that combines ecology with other natural sciences and with the humanities and social sciences, as well as research conducted in collaboration with a wide range of stakeholders in society.
The subjects of study are wide-ranging, from aquatic organisms to wild animals living in cities.
Key terms
- Ecosystem services
- The various benefits that ecosystems and biodiversity provide to people, such as food, water, climate stability, and peace of mind
- Green infrastructure
- Social infrastructure and land use that make use of the functions of nature, such as forests and wetlands, for disaster prevention and for building more livable communities
- Plankton
- Small organisms that live drifting in water. They form the foundation of food chains in lakes and the sea.
ResearchResearch themes
The lab aims to contribute academically to realizing a sustainable society that coexists with nature. It covers a wide range of topics, including the impacts of human activities on ecosystems, ecosystem management, the benefits nature provides to people, and the links between society and ecosystems.
*Illustrative imageNature Restoration and Green Infrastructure
The lab evaluates the present and future functions provided by nature using interdisciplinary methods. It also works with local residents and practitioners to put ecosystem-based disaster risk reduction and green infrastructure into practice in society.
*Illustrative imageConservation and Ecology of Freshwater Organisms
Through field surveys and experiments, the lab investigates how organisms respond to freshwater environments that are changing due to eutrophication, invasive alien species, and other factors. Using lake plankton, it also explores the mechanisms behind evolutionary change and changes in population size.
*Illustrative imageHuman–Nature Relationships
Research has shown that contact with nature supports human health and fosters behaviors that help protect biodiversity. Working with fields such as public health and environmental psychology, the lab conducts research to understand the relationship between people and nature.
*Illustrative imageBehavior of Urban Wildlife
Focusing on Eurasian red squirrels living in cities in Hokkaido, the lab studies the behavioral patterns of urban populations, with the aim of making recommendations for green space management. Cities are places where people and wildlife live close together, and where human–wildlife conflict can easily arise.
MembersFaculty
The lab's members consist of faculty, affiliated faculty with concurrent appointments (National Institute for Environmental Studies and National Institute of Genetics), project researchers, academic specialist staff, and students in the doctoral program, master's program, and undergraduate program.As of 2026
- ProfessorTakehito YoshidaPublications ↗
- Associate ProfessorSoga MasashiPublications ↗
- Assistant ProfessorKenta UchidaPublications ↗
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Satoyama, utilize plant layer” Namazu-tron / CC BY-SA 3.0 (cropped)
- Nature Restoration and Green Infrastructure: “Watarase-Yusuichi” MaedaAkihiko / CC BY-SA 4.0 (cropped)
- Conservation and Ecology of Freshwater Organisms: “Daphnia.sp” Janek Lass / CC BY 4.0 (cropped)
- Human–Nature Relationships: “Nakaikemi Wetland (boardwalk)” Alpsdake / CC BY-SA 4.0 (cropped)
- Behavior of Urban Wildlife: “Hokkaido Red Squirrel” H yamaguchi / CC BY 2.0 (cropped)
- Related lab (生態調和農学機構): “Midoricho, Nishitokyo, University of Tokyo Tanashi Campus 20250615” Mikagekawase / CC BY 4.0 (cropped)
- Related lab
(緑地創成学研究室): “Shiroyone Senmaida 200906” Totti / CC BY-SA 4.0 (cropped) - Related lab (都市・ランドスケープ計画研究室): “Shinjuku Gyoen National Garden and NTT DoCoMo Yoyogi Building, Tokyo, Japan” Basile Morin / CC BY-SA 4.0 (cropped)
- Related lab (杉本研究室
(植物-植食者相互作用研究室/Plant Metabolisms-Herbivore Interaction Laboratory) ): “Badamia exclamationis caterpillar eating Terminalia catappa leaf. Dededo, Guam” Halenhardy / CC0 (cropped)
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