Developmental isolation and subsequent adult behavior of Drosophila paulistorum. IV. Courtship

Early social experiences play important roles in adult Drosophila paulistorum mate selection. Differences in courtship between control males and wholly socially isolated males were observed in chambers. Socially isolated males displayed more courtship toward virgin females than did controls. Socially isolated males were more successful in competing for mates. Yet socially isolated males from all six semispecies also displayed notable frequencies of homosexual behavior.