Masato Yamamichi

Rapid trait adaptation has contrasting effects on different dimensions of stability under environmental change

This study shows that rapid trait adaptation can increase compositional stability but may reduce resilience, with mixed effects on overall community stability under environmental change.

Response diversity can stabilize or destabilize community dynamics depending on the number of insensitive species

This paper shows response diversity can stabilize or destabilize communities depending on the proportion of insensitive species, highlighting the need for better metrics that distinguish species sensitivity from response variation.

Complexity-multistability relationships: How does species diversity shape the number of alternative stable states?

The paper develops a framework to quantify multistability in ecological communities and finds that competitive interactions increase the number of alternative stable states with higher species diversity.

Applying invasion criterion to cultural evolution

This paper applies ecological invasion criteria to predict cultural trait coexistence under different social learning biases and finds it works for most but not similarity-based learning.

The double-edged effect of environmental fluctuations on evolutionary rescue

This study shows environmental fluctuations can both hinder and promote evolutionary rescue in algae, depending on their amplitude and interaction with long-term environmental trends.

Quantifying a trait-mediated indirect effect of an environmental stressor on population dynamics

This study quantifies how salinity stress indirectly affects rotifer population dynamics by altering phytoplankton traits and predator-prey interactions.

A single episode of sexual reproduction can prevent population extinction under multiple stressors

The paper shows that a single sexual reproduction event in a green alga generates enough genetic variation to allow population growth under environmental stress.