Joseph Parker

This paper shows how obligate symbiosis in rove beetles arises from irreversible chemical and behavioral changes that force dependence on host ants.

This study investigates the sensory basis of symbiotic interactions between a rove beetle and its host ant, finding that specificity is enforced by physiological constraints and negative fitness interactions, not sensory tuning.

The paper identifies pheromonal changes in Drosophila species that drive intermale sexual behavior and prevent hybridization with sibling species.