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Sympatric in Medical News

January American Naturalist highlights

...m Hermisson (Ludwig-Maximilians University) Under which circumstances is sympatric speciation possible" An answer to this long-standing question of evolutiona...ted simulation model by Ulf Dieckmann and Michael Doebeli, who investigated sympatric speciation driven by resource competition. They then simplified the assumpt...
Sympatric in Biological News

Host shift triggers cascading effect on ecosystem, research finds

... Department of Entomology. "It also suggests why certain areas and/or biotic regions may have more species than others." The research, "Sequential sympatric Speciation Across Trophic Levels," published Feb. 6 in the journal Science , provides insight into what Forbes calls "the tangled bank of life." "...

Electric fish in Africa could be example of evolution in action

... and form distinct groups and, ultimately, separate species. This so-called sympatric speciation is more controversial because there have been few accepted examp...apes of the electric impulses from these mormyrids might be a first step in sympatric speciation. One the other hand, the fish could be a single species. "Th...
Sympatric in Biological Definition

Evolution

... Allopatric speciation begins when subpopulations of a species become isolated geographically, for example by habitat fragmentation or migration. sympatric speciation occurs when new species emerge in the same geographic area. Ernst Mayr 's peripatric speciation is a type of speciation that exists in ...

Speciation

...ther. Many examples of this kind of speciation are found in the invertebrates , especially the insects . Polyploidy is also a very common cause of sympatric speciation. Polyploidy is seen as a mode of speciation in many plants, a well studied example being that of the wheat species. In asexually reproduc...

Species

...likely to remain so in the future? To take the second question first, there are several broad geographic possibilities. The proposed species are sympatric —they occupy the same habitat. Observation of many species over the years has failed to establish even a single instance of two diagnostically d...
Sympatric in Biological Dictionary

Sympatric

In evolutionary biology and biogeography, sympatric and sympatry are terms referring to organisms whose ranges overlap or are even identical, so that they occur together at least in some places. If these organisms are closely... Speciation is the evolutionary process by which new biological ...

Speciation

...pulation also play a major role in speciation . ... Darwin believed that speciation was the ultimate ... has dominated speciation theory. ... sympatric speciation --that is a very good example of Ernst's ... This is called true speciation or cladogenesis. ... This type of speciation occurs whe...

Pleiotrophy

...a twist ... the effects of epistasis and pleiotropy on adaptation, and sympatric speciation ... What is pleiotropy ? Pleiotropy comes from the Gree..."more", and τρέπειν ... of epistasis and pleiotropy on adaptation, and sympatric ... Definition of pleiotropic from the Merriam-Webster Online Dictionar...
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