Trainito, E.; Baldacconi, R.; Macic, V. (2020). All-around rare and generalist: countercurrent signals from the updated distribution of Calyx nicaeensis (Risso, 1826) (Porifera, Demospongiae). Studia Marina. 33(1): 5-17.
New findings of the endemic Mediterranean demosponge Calyx nicaeensis in the Tavolara MPA (Sardinia, Italy), in Apulia (Italy) and Montenegro waters are reported and the checklist of its records updated. The rarity of the species is discussed and confirmed. It suggests that greater attention should be paid to rare species in order to understand better their life strategies and environmental role.
