geographic(al) speciation

См. также в других словарях:

• Speciation — Part of a series on Evolutionary Biology …   Wikipedia

• speciation — /spee shee ay sheuhn, see ay /, n. Biol. the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors that prevent previously interbreeding populations from breeding with each other. [1895 1900;… …   Universalium

• speciation — spe•ci•a•tion [[t]ˌspi ʃiˈeɪ ʃən, siˈeɪ [/t]] n. bio evo the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors that prevent previously interbreeding populations from breeding with each other •… …   From formal English to slang

• sympatric speciation — Speciation with geographic isolation; the reproductive isolation occurring between segments of a single population …   Dictionary of invertebrate zoology

• allopatric speciation — Speciation occurring at least in part because of geographic isolation …   Glossary of Biotechnology

• Allopatric speciation — Allopatric speciation, also known as geographic speciation, is the phenomenon whereby biological populations are physically isolated by an extrinsic barrier and evolve intrinsic (genetic) reproductive isolation, such that if the barrier breaks… …   Wikipedia

• Heteropatric speciation — is a special case of sympatric speciation that occurs when different ecotypes or races of the same species geographically coexist but exploit different niches in the same patchy or heterogeneous environment. Thus heteropatric speciation is a… …   Wikipedia

• Sympatric speciation — is the genetic divergence of various populations (from a single parent species) inhabiting the same geographic region, such that those populations become different species. Etymologically, sympatry is derived from the roots sym (meaning same,… …   Wikipedia

• sympatric speciation — The evolution of new species by populations that inhabit the same or overlapping geographic regions …   Glossary of Biotechnology

• bird — birdless, adj. /berrd/, n. 1. any warm blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard shelled egg. 2. a fowl or game bird. 3 …   Universalium

• Bird — /berrd/, n. Larry, born 1956, U.S. basketball player. * * * I Any of the warm blooded, beaked vertebrates of the class Aves, including more than 9,600 living species. A covering of feathers distinguishes birds from all other animals. Birds have a …   Universalium