macroevolution

الإنجليزية - التركية

تعريف macroevolution في الإنجليزية التركية القاموس.

makroevrim

الإنجليزية - الإنجليزية

تعريف macroevolution في الإنجليزية الإنجليزية القاموس.

large-scale patterns or processes in the history of life, including the origins of novel organismal designs, evolutionary trends, adaptive radiations and extinctions

Evolution above the species level; the evolution of higher taxa and the processes that result from differences in species survivorship or rates of speciation

large-scale evolution, entailing major changes in biological traits

evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups

1 Evolution at or above the species level Speciation events are thus examples of macroevolution

{i} evolutionary changes in a large-scale over a extended period of time

A term introduced by Theodosius Dobzhansky in 1937, referring to evolution at levels higher than the populational His view was that evolutionary change at the level of speciation and above Recently, the term has been used simply to refer to large scale change, mostly at the superspecies level, eg, by Niles Eldredge

A term introduced by Richard Goldschmidt, a non-Darwinian evolutionist, in 1940, referring to evolution at levels higher than the populational His view, not original to him, was that evolutionary change at the level of speciation and above, could not occur through natural selection or drift Recently, the term has been used simply to refer to large scale change, mostly at the superspecies level, eg, by Niles Eldredge

Evolution at or above the species level, i e , of species or clades See Punctuated Equilibrium

الواصلة

mac·ro·ev·o·lu·tion