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Invertebrate scavengers of terrestrial and aquatic carrion include a broad and enormously diverse grouping of various arthropods, nematodes, and molluscs. By far the most functionally important in terrestrial ecosystems are insects, especially the flies, with crustaceans performing this role in marine ecosystems, although a multi-trophic foodweb of numerous invertebrate taxa can be found at most carcasses in most environments. The occurrence of different taxa, and the dynamics of their colonization and various competitive interactions varies across terrestrial and aquatic realms, and is greatly influenced by geographic region, climate, habitat, season, and other biotic factors. This sub-chapter focuses on the invertebrate use of carrion in both terrestrial and aquatic ecosystems, and highlights the role of different groups of invertebrates, and the biotic and abiotic factors that influence their occurrence and succession at decaying carcasses. |
