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Peripatric speciation

Peripatric speciation is a form of speciation, the formation of new species through evolution. In this form, new species are formed in isolated peripheral populations; this is similar to allopatric speciation in that populations are isolated and prevented from exchanging genes. However, peripatric speciation, unlike allopatric speciation, proposes that one of the populations is much smaller than the other.

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Peripatric speciation was originally proposed by Ernst Mayr, and is related to the founder effect, because small living populations may undergo selection bottlenecks.^[1] Genetic drift is often proposed to play a significant role in peripatric speciation.^[2]

v • d • e Speciation guide
Basic concepts:	Species • Cline • Chronospecies • Speciation
Modes of speciation:	Allopatric • Peripatric • Parapatric • Sympatric • Polyploidy • Paleopolyploidy
Auxiliary mechanisms:	Sexual selection • Assortative mating • Punctuated equilibrium
Intermediate stages:	Hybrid • Ring species • Haldane's rule

v • d • e Basic topics in evolutionary biology
Evidence of evolution
Processes of evolution	Adaptation · Macroevolution · Microevolution · Speciation
Population genetic mechanisms	Natural selection · Genetic drift · Gene flow · Mutation
Evolutionary developmental biology (Evo-devo) concepts	Phenotypic plasticity · Canalisation · Modularity
Modes of evolution	Anagenesis · Catagenesis · Cladogenesis
History	History of evolutionary thought · Charles Darwin · On the Origin of Species · Modern evolutionary synthesis · Evolutionary history of life · Life (classification trees)
Other subfields	Ecological genetics · Human evolution · Molecular evolution · Phylogenetics · Systematics
List of evolutionary biology topics · Timeline of evolution

References

^ Provine WB (2004). "Ernst Mayr: Genetics and speciation". Genetics 167 (3): 1041-6. PMID 15280221.
^ Templeton AR (1980). "The theory of speciation via the founder principle". Genetics 94 (4): 1011-38. PMID 6777243.