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・ Disiz
・ DISJ
・ DisJam
・ Disjecta
・ Disjecta (Beckett)
・ Disjecta membra
・ Disjoining pressure
・ Disjoint
・ Disjoint sets
・ Disjoint union
・ Disjoint union (topology)
・ Disjoint-set data structure
・ Disjointed Parallels
・ Disjunct
・ Disjunct (linguistics)
Disjunct distribution
・ Disjunct matrix
・ Disjunction and existence properties
・ Disjunction elimination
・ Disjunction introduction
・ Disjunction property of Wallman
・ Disjunctive
・ Disjunctive cognition
・ Disjunctive graph
・ Disjunctive normal form
・ Disjunctive population
・ Disjunctive pronoun
・ Disjunctive sequence
・ Disjunctive sum
・ Disjunctive syllogism


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Disjunct distribution : ウィキペディア英語版
Disjunct distribution

In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but widely separated from each other geographically. The causes are varied and might demonstrate either the expansion or contraction of a species range.
==Range fragmentation==
Also called range fragmentation, disjunct distributions may be caused by changes in the environment, such as mountain building and continental drift or rising sea levels; it may also be due to an organism expanding its range into new areas, by such means as rafting, or other animals transporting an organism to a new location (plant seeds consumed by birds and animals, can be moved to new locations during bird or animals migrations, and those seeds can be deposited in new locations in fecal matter). Other conditions that can produce disjunct distributions include: flooding, or changes in wind, stream, and current flows, plus others such as anthropogenic introduction of alien introduced species either accidentally or deliberately (agriculture and horticulture).

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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