geographical isolation
geographical isolation The separation of two populations of the same species or breeding group by a physical barrier, such as a mountain or body of water. Geographical isolation may ultimately lead to the populations becoming separate species by adaptive radiation. See also allopatric; speciation.
More From encyclopedia.com
allopatric speciation , allopatric speciation The formation of new species from the ancestral species as a result of the geographical separation or fragmentation of the bree… Sibling Species , sibling species Species that are identical in outward appearance or very nearly so. Despite the similarity, however, they qualify as species by being… Speciation , Speciation refers to the genesis of a new species from an ancestral species. There are two basic ways this can happen. Anagenesis involves one specie… Deme , Deme
Deme (pronounced “deem,” from the Greek for “people” and originally referring to a political division within ancient Greece) has been used in bi… Species , The term species, in the most general sense, refers to the various kinds of living things. Thus, species are generally recognized as distinct, fully… Reproductive Isolating Mechanism , reproductive isolating mechanism (RIM) The means by which different species are kept reproductively isolated. These may be: (a) chromosomal (if cross…
You Might Also Like
NEARBY TERMS
geographical isolation