Attributes / relations provided by
♦ 1Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014).
Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 2CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ 3Wootton, J. Timothy. "Estimates and tests of per capita interaction strength: diet, abundance, and impact of intertidally foraging birds." Ecological Monographs 67.1 (1997): 45+. Academic OneFile. Web. 23 July 2010
♦ 4COMPETITION FOR FOOD BETWEEN TWO INTERTIDAL STARFISH SPECIES AND ITS EFFECT ON BODY SIZE AND FEEDING, BRUCE A. MENGE, Ecology, Vol. 53, No. 4 (1972) p. 635-644