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.
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]
See also
| Speciation guide | |
|---|---|
| Basic concepts: | Species • Chronospecies • Speciation • Cline |
| Modes of speciation: | Allopatric • Peripatric • Parapatric • Sympatric • Polyploidy • Paleopolyploidy |
| Auxiliary mechanisms: | Sexual selection • Assortative mating • Punctuated equilibrium |
| Intermediate stages: | Hybrid • Haldane's rule • Ring species |
| 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 · The Origin of Species · Modern evolutionary synthesis · Evolutionary history of life |
| 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.
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