Search results
Results from the WOW.Com Content Network
Microevolution is the change in allele frequencies that occurs over time within a population. [1] This change is due to four different processes: mutation , selection ( natural and artificial ), gene flow and genetic drift .
Yuri Aleksandrovich Filipchenko, sometimes Philipchenko (Russian: Юрий Александрович Филипченко; 1882 — 1930) was a Russian entomologist who coined the terms microevolution and macroevolution, as well as the mentor of geneticist Theodosius Dobzhansky. [1]
In other words, microevolution is the scale of evolution that is limited to intraspecific (within-species) variation, while macroevolution extends to interspecific (between-species) variation. [4] The evolution of new species ( speciation ) is an example of macroevolution.
Macroevolution refers to evolution that occurs at or above the level of species, in particular speciation and extinction, whereas microevolution refers to smaller evolutionary changes within a species or population, in particular shifts in allele frequency and adaptation. [135] Macroevolution is the outcome of long periods of microevolution. [136]
Microevolution – Change in allele frequencies that occurs over time within a population; Evolutionary game theory – Application of game theory to evolving populations in biology; Fitness landscape – Model used to visualise relationship between genotypes and reproductive success; Genetic genealogy – DNA testing to infer relationships
To the best of my knowledge, there is no distinction between the process of "microevolution" and "macroevolution" in modern genetics. Isn't "macroevolution" simply a non-scientific term for "a lot of" microevolution. The biological process is the same. In Microevolution vs Macroevolution, Austin Cline explains this common misconception. Now, I ...
If new traits become more favored due to changes in a specific niche, microevolution occurs. If new traits become more favored due to changes in the broader environment, macroevolution occurs. Sometimes, new species can arise especially if these new traits are radically different from the traits possessed by their predecessors.
Fisheries-induced evolution (FIE) is the microevolution of an exploited aquatic organism's population, brought on through the artificial selection for biological traits by fishing practices (fishing techniques and fisheries management). [1]