Climate‐driven range expansions of individual species are well‐documented, but corresponding community shifts are not. This lack of widespread community change may indicate communities can resist wholesale change with the arrival of new species. In the northern Gulf of Mexico, climate change is driving the expansion of black mangroves ( Avicennia germinans ) into areas traditionally dominated by smooth cordgrass ( Spartina alt...

The queen conch , Aliger gigas , is an endemic and iconic marine gastropod of the Wider Caribbean region that has been harvested for thousands of years. Conch are slow-moving and require contact to mate; overfishing has reduced populations in many areas compromising its rates of reproduction. Long-range dispersal and mixing between distinct populations occur in the queen conch’s early life history stages, when pelagic larvae a...

Acropora cervicornis and A. palmata have experienced substantial losses in coral cover throughout the Caribbean, but their hybrid ( A. prolifera ) appears to be increasing at some sites. The shifts in relative abundance could result from hybridization with subsequent asexual fragmentation, recent increased hybridization, or a disproportionate loss in the parental species. Here, acroporid taxa from three U.S. Virgin Islands sit...