Cecilia Jalabert

The paper develops a sensitive method to measure eleven estrogens in songbirds and finds that only estrone and 17β-E2 are detectable, with seasonal variation but no effect of simulated territorial intrusion on estrogen levels.

The paper investigates seasonal plasticity in neuroendocrine mechanisms of territorial aggression in wild teleost fish, finding elevated androgen and estrogen-related gene expression in non-breeding seasons.

The paper quantifies brain and plasma steroids in non-breeding electric fish to explore their role in aggression, finding sex-specific differences and estrogenic involvement.