| foragers versus farmers: contrasting effects of two behavioural groups of herbivores on coral reefs. | herbivorous fishes have been attributed a central role in structuring benthic communities on coral reefs. however, the relative importance of different behavioural groups of herbivores may differ and their interactions may be complex. this study focuses on an experiment that discriminates between two groups of herbivorous fish: (1) "foragers" (relatively mobile, schooling grazers, including parrotfishes and surgeonfishes) and (2) "farmers" (highly site-attached, territorial species, primarily da ... | 2005 | 16001223 |