Advanced search    

Search: authors:"Rafel Coma"

5 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Evidence for coral range expansion accompanied by reduced diversity of Symbiodinium genotypes

Zooxanthellate corals are threatened by climate change but may be able to escape increasing temperatures by colonizing higher latitudes. To determine the effect of host range expansion on symbiont genetic diversity, we examined genetic variation among populations of Symbiodinium psygmophilum associated with Oculina patagonica, a range-expanding coral that acquires its symbionts...

Rapid Northward Spread of a Zooxanthellate Coral Enhanced by Artificial Structures and Sea Warming in the Western Mediterranean

The hermatypic coral Oculina patagonica can drive a compositional shift in shallow water benthic marine communities in the northwestern Mediterranean. Here, we analyze a long-term, large-scale observational dataset to characterize the dynamics of the species' recent northward range shift along the coast of Catalonia and examine the main factors that could have influenced this...

Sea Urchins Predation Facilitates Coral Invasion in a Marine Reserve

Macroalgae is the dominant trophic group on Mediterranean infralittoral rocky bottoms, whereas zooxanthellate corals are extremely rare. However, in recent years, the invasive coral Oculina patagonica appears to be increasing its abundance through unknown means. Here we examine the pattern of variation of this species at a marine reserve between 2002 and 2010 and contribute to...

Small-scale spatial heterogeneity and seasonal variation in a population of a cave-dwelling Mediterranean mysid

Seasonal changes in small-scale spatial distribution patterns of abundance and composition of Hemimysis speluncola Ledoyer (1963) (Crustacea, Mysidacea) were studied in a population of cave-dwelling mysids off the Medes Islands (NW Mediterranean Sea). The distribution pattern was characterized all year round by marked spatial segregation of juveniles, which occupied areas closer...