Many species create biogenic habitat that may vary in quality depending on its attributes. This variation may in turn affect species interactions among members of the attendant community. We describe a habitat-provisioning species that, with variation in a simple trait, produces dichotomous classes of habitat: one that serves as a predation refuge and the other that does not. Subtidal roots of ...

A novel halophilic bacterium of the genus Kangiella was isolated from a marine sponge collected from the Florida Keys, USA. Strain A79(T), an aerobic, Gram-negative, non-motile, rod-shaped bacterium, grew in 2-15 % (w/v) NaCl, at a temperature of 10-49 °C and at pH 4.5-10. Phylogenetic analysis placed strain A79(T) in the family Alcanivoraceae in the class Gammaproteobacteria. Strain A79(T) sho...