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geographical and
ecological concepts".
Ecological speciation can
occur allopatrically, sympatrically, or parapatrically; the only
requirement being that it...
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allopatric speciation as a
special case; however,
Coyne and Orr
argue that Mayr's
original conception of a ring
species does not
describe allopatric speciation...
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originates from
Theodosius Dobzhansky. He
envisioned a
species separated allopatrically,
where during secondary contact the two po****tions mate, producing...
- migrants. When gene flow is
blocked by
physical barriers, the
outcome is
Allopatric speciation or a
geographical isolation that does not
allow po****tions...
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increasing in cultivation, and
hybrids have been
produced between these two
allopatrically distributed species.
Various extinct species of
Liriodendron have been...
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extent to
which speciating po****tions are
isolated from one another:
allopatric, peripatric, parapatric, and sympatric.
Whether genetic drift is a minor...
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isolation by
geographic and
other means. Mayr
emphasized the
importance of
allopatric speciation,
where geographically isolated sub-po****tions
diverge so far...
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barred eagle-owl (Ketupa sumatrana),
which looks quite similar but is
allopatric in distribution. The spot-bellied eagle-owl, like its
close relative,...
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Secondary contact is the
process in
which two
allopatrically distributed po****tions of a
species are
geographically reunited. This
contact allows for...
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sagital crest, and
other features of the
teeth and skull. They also
occur allopatrically from Ellobius. They are ****ually dimorphic, with
females being larger...