کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4550078 | 1627506 | 2012 | 6 صفحه PDF | دانلود رایگان |
Sponges are an important source of many interesting secondary metabolites with multiple ecological roles. Sponges can also use their spicules as a means of deterring consumers. The present study investigated the importance of chemicals and spicules as defensive strategies against predation for two congeneric sponge species from the Brazilian coast, Tethya rubra and Tethya maza. Crude extract and spicules differed somewhat in their effectiveness between these sponge species, with T. maza better defended than T. rubra against predation by the hermit crab Calcinus tibicen and synergistic effects stronger in T. rubra. These results show that defensive strategies may be similar between sponge species possessing monophyletic origin, and reveal the importance of research on congeneric species to understand the ecology and evolution of defensive strategies.
► Congeneric sponges were studied concerning their chemical and physical defenses.
► Tethya maza and T. rubra showed high similarity in major portion of crude extract.
► Similar antipredation strategies were evidenced in congeneric species.
Journal: Journal of Sea Research - Volume 68, February 2012, Pages 57–62