Allopatric speciation is typically subdivided into two major models: vicariance and peripatric.
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Allopatric speciation is typically subdivided into two major models: vicariance and peripatric.
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Furthermore, the terms allopatric, vicariant, and geographical speciation are often used interchangeably in the scientific literature.
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Allopatric speciation can be represented as the extreme on a gene flow continuum.
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In sympatry, while in parapatric Allopatric speciation, represents the entire continuum, although some scientists argue that a classification scheme based solely on geographic mode does not necessarily reflect the complexity of Allopatric speciation.
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Peripatric Allopatric speciation is a mode of Allopatric speciation in which a new species is formed from an isolated peripheral population.
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However, it can often be difficult for researchers to determine if peripatric Allopatric speciation occurred as vicariant explanations can be invoked due to the fact that both models posit the absence of gene flow between the populations.
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Centrifugal Allopatric speciation is a variant, alternative model of peripatric Allopatric speciation.
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Centrifugal Allopatric speciation has been largely ignored in the scientific literature.
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Ecological speciation can occur allopatrically, sympatrically, or parapatrically; the only requirement being that it occurs as a result of adaptation to different ecological or micro-ecological conditions.
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The most recent thorough treatment of allopatric speciation is Jerry Coyne and H Allen Orr's 2004 publication Speciation.
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Allopatric speciation has resulted in many of the biogeographic and biodiversity patterns found on Earth: on islands, continents, and even among mountains.
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Dispersal and in situ Allopatric speciation are the agents that explain the origins of the organisms in Hawaii.
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Various geographic modes of speciation have been studied extensively in Hawaiian biota, and in particular, angiosperms appear to have speciated predominately in allopatric and parapatric modes.
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Dispersal-mediated allopatric speciation is thought to be a significant driver of diversification throughout the Neotropics.
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Experiments on allopatric speciation are often complex and do not simply divide a species population into two.
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However, this is not without controversy, as both parapatric and sympatric Allopatric speciation are both considered tenable modes of Allopatric speciation that occur in nature.
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