| cross-habitat impacts of species decline: response of estuarine sediment communities to changing detrital resources. | food webs of many ecosystems are sustained by organic matter from other habitats. human activities and climatic change are increasingly modifying the quality and supply of these resources, yet for most ecosystems it is unknown how the taxonomic composition of organic matter influences community composition. along the coastline of sydney, australia, the once abundant habitat-forming macroalga, phyllospora comosa, is now locally extinct. shallow reefs are now primarily occupied by sargassum sp. an ... | 2010 | 20063171 |