In this BiologyWise article, we will see how geographic isolation can lead to allopatric speciation, and also put forth some examples of the same.

Of the four geographic modes of speciation in nature, allopatric speciation, where the population of a species splits into two geographically isolated populations, is the most common. Source for information on geographical isolation: A Dictionary of Biology dictionary. Species richness, however, was correlated with distance to the mainland only on logged islands. Geographical isolation may ultimately lead to the populations becoming separate species by adaptive radiation. Geographic isolation is a term that refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species. Geographic Isolation. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

Wang, I. J. GEOGRAPHIC AND ECOLOGICAL ISOLATION ON GENETIC DIFFERENTIATION Gideon S. Bradburd,12 Peter L. Ralph,3 and Graham M. Coop1 ' Department of Evolution and Ecology, Center for Population Biology, University of California, Davis, California 95616 2E-mail: gbradburd@ucdavis.edu Hypotheses regarding how speciation begins differ in the role of geographic isolation and the origin of reproductive isolation (preventing populations from …

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. We conclude that geographic isolation may affect species composition on islands, and that such an effect may occur even in the absence of a corresponding effect on species richness. ecological isolation the separation of organisms (usually) within the same geographical region because of their preference for different habitat types. While geographical isolation has been frequently analysed, genetic effects from local ecological adaptation are much less well documented and understood (reviewed by Schluter, 2009). An important feature of islands biodiversity is its high level of endemism basically as a result of geographical isolation, climate change and ecological amplitude.
Isolating mechanism definition is - something (as a geographical, ecological, physiological, anatomical, or psychological barrier) that limits interbreeding between groups and is thereby a major factor in the differentiation of biological units (as races or species). Along with gametic isolation, temporal isolation, ecological isolation, and behavioral isolation, which limit which species can breed with one another, thus preventing different species from merging into one species. Geographic isolation can be caused by many factors and can result in a variety of results. Although, islands account for only 3.6% of the terrestrial surface of the world, 26.1% of all range equivalents of plants are found in …