Relict
A relict is a surviving remnant of a natural phenomenon.
- In biology a relict (or relic) is an organism that at an earlier time was abundant in a large area but now occurs at only one or a few small areas.
- A glacial relict is a cold-adapted organism that is a remnant of a larger distribution that existed in the ice ages.
- In ecology, an ecosystem which originally ranged over a large expanse, but is now narrowly confined, may be termed a relict.
- In geology, a relict is a structure or mineral from a parent rock that did not undergo metamorphosis when the surrounding rock did, or a rock that survived a destructive geologic process.
- In geomorphology, a relict landform is a landform formed by either erosive or constructive surficial processes that are no longer active as they were in the past.
- In agronomy, a relict crop is a crop which was previously grown extensively, but is now only used in one limited region, or a small number of isolated regions.
- In history (as revealed in DNA testing), a relict population is an ancient people in an area who have been largely supplanted by a later group of migrants and their descendants.
- In real estate law, reliction is the gradual recession of water from its usual high-water mark so that the newly uncovered land becomes the property of the adjoining riparian property owner.[1]
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Other uses:
- In addition, relict was an ancient term still used in colonial (British) America, and in England of that era, but now archaic, for a widow; it has come to be a generic or collective term for widows and widowers.
- In historical linguistics, a relict is a word that is a survivor of a form or forms that are otherwise archaic.
Biology
Geology and geomorphology
History
Human populations
In various places around the world, minority ethnic groups represent lineages of ancient human migrations in places now occupied by more populous ethnic groups, whose ancestors arrived later. For example, the first human groups to inhabit the Caribbean islands were hunter-gatherer tribes from South and Central America. Genetic testing of natives of Cuba show that, in late pre-Columbian times, the island was home to agriculturalists of Taino ethnicity. In addition, a relict population of the original hunter-gatherers remained in western Cuba as the Ciboney people.[2]
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References
- Lear, P.W. 1991, Accretion, reliction, erosion, and avulsion: a survey of riparian and littoral title problems. Journal of Energy, Natural Resources & Environmental Law. vol. 11, pp. 265-285.
- Lalueza-Fox, C.; Gilbert, M.T.P.; Martinez-Fuentes, A.J.; Calafell, F.; Bertranpetit, J. (June 2003). "Mitochondrial DNA from pre-Columbian Ciboneys from Cuba and the prehistoric colonization of the Caribbean". American Journal of Physical Anthropology. Wiley-Liss. 121 (2): 97(12). doi:10.1002/ajpa.10236. PMID 12740952. Retrieved 12 March 2011.
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