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Complex Systems Ecology Lab
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A lab that builds new ecological theory from observational data.

AboutAbout the lab
Uncovering how ecosystems work from data
The Complex Systems Ecology Lab studies how complex ecosystems come into being and are maintained.
Using methods such as mathematical models, simulations, and time series analysis, it also works on how to achieve prediction and control of ecosystems.
The lab aims to build new ecological theory that can be tested directly against observational data.
The lab's website is the personal webpage of Associate Professor Kazutaka Kawatsu.
Key terms
- Time series analysis
- A method for investigating patterns and mechanisms of change from a sequence of observational data that changes over time
- Mathematical model
- A tool that expresses things such as interactions among organisms in mathematical formulas and examines their behavior through computers or calculation
- Nonlinear dynamical systems theory
- A theory that uses mathematics to describe things that change over time, including relationships in which cause and effect are not simply proportional
ResearchResearch themes
Ecosystem dynamics are large in scale and unfold over long periods, which makes it difficult to verify theory through observation or experiments. The lab works on building new ecological theory that can be tested directly against observational data.
View More ↗MembersFaculty
- Associate ProfessorKazutaka Kawatsu
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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: “Plankton Bloom in Lake Titicaca (4843)” Astronaut photograph ISS009-E-5696 was acquired on May 5, 2004, with a Kodak K70C digital camera with a 180-mm lens, and is provided by the Earth Observations Laboratory, at Johnson Space Center. The International Space Station Program supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. / Public domain (cropped)
- Building ecological theory from observational data: “On field observation & discussion of the sighted species.” Bonmanush / CC BY-SA 4.0 (cropped)
- Related lab (Earth Dynamics Lab): “Folded Rock Provo Canyon” Kerk Phillips / Public domain (cropped)
- Related lab (Soil Biology Lab): “Springtail (Collembola Symphypleona) on soil” Lewis Fausak / CC BY-SA 4.0 (cropped)
- Related lab (Public Policy and Empirical Economics Lab): “Pune Public Policy Festival 2025 at Gokhale Institute of Politics and Economics (68140)” DesiBoy101 / CC BY 4.0 (cropped)
- Related lab (Complex Systems Meteorology Lab): “Super Typhoon Bavi (super-typhoon-bavi - 20260705)” NASA Earth Observatory/Michala Garrison / Public domain (cropped)
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