The range of this race is probably
allopatric in respect of the Yozgat, Eflani and Bitlis races.
The origin of hybrids is a consequence of a return to sympatry and the breakdown of isolating mechanisms, not the action of natural selection and drift on
allopatric populations.
Similarly, studies of gametic compatibility between
allopatric populations of the eastern oyster Crassostrea virginica failed to reveal strong fertilization barriers between genetic clines (north and south Florida) when sperm from each population competed to fertilize eggs from both populations (Zhang et al.
They studied whether being sympatric or
allopatric affected the relative growth and food habits of rainbow trout and cutthroat trout.
Most of the branchiopod taxa sampled during the study are usually
allopatric (i.
All of the species are
allopatric and there is no known geographical overlap, and from the first eophylls to especially mature plants, the species can be separated.
He follows with description of neural-developmental premises of evolutionary adaptation, including evolution and stress responses and behavioral adaptation to changes in environment, ontogeny, and intragenerational developmental plasticity; epigenetics of circumevolutionary phenomena and the mechanism of evolutionary change, including transgenerational developmental plasticity and the evolution of metazoans and their control system; and the origins of evolutionary novelty, evolution by loss or by reverting to ancestral characters, neural crest-determined evolutionary novelties, evolutionary convergences, species and
allopatric speciation, and sympatric speciation.
Habitat alteration and climate-induced range expansions are thought to lead indirectly to increases in hybridization rates by providing areas of secondary contact among related
allopatric species.
Morphometric analysis is a useful technique for solving taxonomic problems, such as studying and delimiting populations of the same species, or recognizing cryptic species in sympatric or
allopatric populations (Calle et al.
These species are completely
allopatric, occurring E.
A share floral hosts but currently are
allopatric with minimal overlap in their flight seasons (H.
Karyotypic studies of two
allopatric populations of the genus Hoplias (Pisces, Erythrinidae).
