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Entomology Lab
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The lab tackles questions of evolution by building a new model system for learning behavior.
AboutAbout the lab
Approaching questions of evolution through research on learning behavior
Associate Professor Koji Sasakawa's lab studies learning behavior in animals.
Associate Professor Sasakawa specializes in entomology, animal ecology, and animal taxonomy.
In its research on learning behavior, the lab addresses questions such as whether the evolution of learning ability promotes the evolution of diet and speciation.
The lab has also studied the relationship between mandible shape and diet in larvae of Carabidae (ground beetles).
In the researcher information, the affiliation is listed as the "Zoology Lab, Science Education Course."
Key terms
- Carabidae
- A group of beetles. It also includes the gomimushi (the Japanese name for a subgroup of ground beetles).
- Animal personality
- Consistent differences in behavior between individuals within the same species; the "individuality" of animals.
- Behavioral syndrome
- A set of correlations, observed across individuals, among several behaviors such as exploration and escape.
ResearchResearch themes
Behavioral changes based on learning are widespread in animals and can affect interspecific relationships and speciation. In addition to building a new model system for research on learning behavior, the lab has studied the relationship between mandible shape and diet in Carabidae larvae.
A New Model System for Learning Behavior
Aiming to establish a new model system for research on learning behavior, the lab addresses questions such as which ecological traits are related to the evolution of learning ability, and whether the evolution of learning ability promotes the evolution of diet and speciation. In three closely related species, it experimentally examines individuality that may be linked to learning behavior (animal personality) and behavioral syndromes.
Larval Mandible Shape and Diet
Using Carabidae larvae, the lab examined diet through rearing and mandible shape through specimens, and studied how the shape of the mouthpart mandibles has diversified. In some species, the diet predicted from mandible shape matched the experimental results, suggesting that the specialization of mandibles as an adaptation to diet has occurred independently within Carabidae.
MembersFaculty
- Associate ProfessorKoji Sasakawa
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).
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