-
concludes that "a well-marked
variety may be
justly called an
incipient species" and that "
species are only
strongly marked and
permanent varieties". He argues...
- term to a
species with
intraspecific variability,
which might be a sign of
ongoing or
incipient speciation.
Examples are ring
species or
species with subspecies...
- curiosity, imitation, reason, etc., of
which man boasts, may be
found in an
incipient, or even
sometimes in a well-developed condition, in the
lower animals...
- PMID 28563045 T. Dobzhansky; O.
Pavlovsky (1966), "Spontaneous
origin of an
incipient species in the
Drosophila paulistorum complex", PNAS, 55 (4): 723–733, Bibcode:1966PNAS...
- of
facts relative to the ac****ulation of
individual variations in
incipient species. But he
foresaw that the term [evolution]
which he was introducing...
- offspring, and thus
contribute to the
reproductive isolation of the two
incipient species. This idea came to be
known as the
Wallace effect,
later called reinforcement...
-
allopatry demands that
incipient stages should be
found in
different po****tions. This has been
observed to
varying degrees in
several species-pollinator pairs...
- are
similar in
appearance to yellowjackets,
their close relatives. Some
species can
reach up to 5.5 cm (2.2 in) in length. They are
distinguished from...
-
separated incipient species (the
initial stage of speciation) is
increasing due to
human activities such as the
introduction of
invasive species or the modification...
- 04210.x. PMID 19457197. S2CID 205361829. Irwin,
Darren E. (July 2009). "
Incipient ring
speciation revealed by a
migratory divide".
Molecular Ecology. 18...