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Aricidea
''Aricidea'' is a genus of small paraonid worms, which are sub-surface deposit feeders and bioturbators. ''Aricidea'' worms have a prostomial antenna, with all ''Aricidea'' species (except those in the subgenus ''Aedicira'') possessing neuropodial thickened chaetae. References Polychaete genera {{Annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraonidae
Paraonidae is a family of polychaete Polychaeta () is a paraphyletic class of generally marine Annelid, annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called c ...s belonging to the order Cirratulida. Genera Genera: * '' Aedicira'' Hartman, 1957 * '' Aparaonis'' Hartman, 1965 * '' Aricidea'' Webster, 1879 References {{Authority control Polychaetes Annelid families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioturbation
Bioturbation is defined as the reworking of soils and sediments by animals or plants. It includes burrowing, ingestion, and defecation of sediment grains. Bioturbating activities have a profound effect on the environment and are thought to be a primary driver of biodiversity. The formal study of bioturbation began in the 1800s by Charles Darwin experimenting in his garden. The disruption of aquatic sediments and terrestrial soils through bioturbating activities provides significant ecosystem services. These include the alteration of nutrients in aquatic sediment and overlying water, shelter to other species in the form of burrows in terrestrial and water ecosystems, and soil production on land.Shaler, N. S., 1891, The origin and nature of soils, in Powell, J. W., ed., USGS 12th Annual report 1890–1891: Washington, D.C., Government Printing Office, p. 213-45. Bioturbators are deemed ecosystem engineers because they alter resource availability to other species through the physica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
