The hawthorn fly ( " Rhagoletis pomonella " ), also known as the apple maggot fly, appears to be undergoing sympatric speciation.
42.
Sympatric speciation driven by ecological factors may also account for the extraordinary diversity of crustaceans living in the depths of Siberia's Lake Baikal.
43.
Island biogeography is also useful in considering sympatric speciation, the idea of different species arising from one ancestral species in the same area.
44.
The mechanisms are genetically controlled and can evolve in species whose geographic distribution overlaps ( sympatric speciation ) or has diverged in allopatric speciation.
45.
In 2015 Cichlid fish from a tiny volcanic crater lake in Africa were observed in the act of sympatric speciation using DNA sequencing methods.
46.
Allochrony offers some empirical evidence that sympatric speciation has taken place, as many examples exist of recently diverged ( sister taxa ) allochronic species.
47.
A rare example of sympatric speciation in animals is the divergence of " resident " and " transient " orca forms in the northeast Pacific.
48.
He was skeptical of the reality of sympatric speciation believing that geographical isolation was a prerequisite for building up intrinsic ( reproductive ) isolating mechanisms.
49.
The debate now turns to how often sympatric speciation may actually occur in nature and how much of life's diversity it may be responsible for.
50.
This lack of geographic barriers in the present lake has made scientists consider that their species might have diverged either by the controversial mechanism of sympatric speciation.
