What Is Sympatric Speciation

Sympatric speciation a controversial alternative to allopatric speciation is sympatric speciation in which reproductive isolation occurs within a single population without geographic isolation. The prefix sym means same so sympatric means same homeland in contrast to allopatric meaning other homeland scientists have proposed and studied many mechanisms.

How Does Speciation Occur Example

Sympatric speciation alternative to allopatric speciation is sympatric speciation in which reproductive isolation occurs within a single population without geographic isolation.

What is sympatric speciation. In general when populations are physically separated some reproductive isolation arises. The process of forming new species from a pre existing species is called anagenesis. Allopatric speciation and sympatric speciation are the two major mechanisms involved in the formation of new species from a pre existing species.

Merely exploiting a new niche may automatically reduce gene flow with individuals exploiting the other niche. Sympatric speciation is the evolution of a new species from a surviving ancestral species while both continue to inhabit the same geographic region. Anagenesis occurs through reproductive isolation of individuals in a population.

The answer is yes. How could a randomly mating population reduce gene flow and speciate. Sympatric speciation represents the extreme opposite of allopatric speciation by being wholly independent of geographical context.

In general when populations are physically separated some reproductive isolation arises. The ancestors of hawthorn flies used to lay their eggs. Sympatric speciation is speciation that occurs when two groups of the same species live in the same geographic location but they evolve differently until they can no longer interbreed and are considered different species.

The hawthorn fly is an example of sympatric speciation based on a preference of egg laying location. Sympatric speciation unlike the previous modes sympatric speciation does not require large scale geographic distance to reduce gene flow between parts of a population. Four main types of population pairs exist in nature.

We call the process of speciation within the same space sympatric. Sympatric species or taxa in secondary contact may or may not interbreed types of populations. Sympatric speciation does not imply secondary contact which is speciation or divergence in allopatry followed by range expansions leading to an area of sympatry.

New species form well within the dispersal range of the ancestral species through divergent natural selection to adapt to alternative habitats. In evolutionary biology and biogeography sympatric and sympatry are terms referring to organisms whose ranges overlap so that they occur together at least in some places.

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