parapatrically en · ADV
Etymology
From parapatric + -ally.
Meanings
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(not-comparable) Of the ranges of organisms, in a parapatric manner; in a manner that is adjacent, but not significantly overlapping.
It is easy to see how diversifying selection could result in the formation of parapatrically distributed races.
1988, Lawrence E. Mettler, Thomas G. Gregg, Henry E. Schaffer, Population Genetics and Evolution, page 275:Where it comes parapatrically in contact with the parental species, it will establish a narrow secondary hybrid zone (reproductive isolation will rarely be complete at the beginning).
1970, Ernst Mayr, Populations, Species, and Evolution: An Abridgment of Animal Species and Evolution, page 318:Several taxa of plethodontid salamanders exist as complexes of parapatrically distributed, genetically differentiated populations with sharp clines at the contact zone.
2000, Richard C. Bruce, Robert G. Jaeger, Lynne Houck, The Biology of Plethodontid Salamanders, page 197: