In this study, seasonal numerical abundance of the critically endangered Atlantic goliath grouper Epinephelus itajara was estimated by conducting scuba dive surveys and calculating sightings‐per‐unit‐effort ( SPUE ) at three sites in southern Brazil. Seasonal differences in size and reproductive condition of captured or confiscated specimens were compared. The SPUE differed significantly with season, increasing in late spring...

Aim Biogeographically puzzling taxa represent an opportunity to understand the processes that have shaped current species distributions. The systematic placement and biogeographical history of Elkalyce cogina , a small lycaenid butterfly endemic to Brazil and neighbouring Argentina, are long‐standing puzzles. We use molecular tools and novel biogeographical and life history data to clarify the taxonomy and distribution of this...