Before revision: Examples Various populations of gorillas can be understood by their geographical separation and have been assessed to determine distinct and disjointed gene pools.Andrea Beth Taylor and Michele Lynn Goldsmith , 2003 The polar bear, Ursus maritimus, is understood to have 19 identifiable demes, even though their circumpolar distribution allows some interchange among the demes.
After revision: Examples Various populations of gorillas can be understood by their geographical separation and have been assessed to determine distinct and disjointed gene pools.Andrea Beth Taylor and Michele Lynn Goldsmith () Gorilla Biology: A Multidisciplinary Perspective, Cambridge University Press, 508 pages , 2003 The polar bear, Ursus maritimus, is understood to have 19 identifiable demes, even though their circumpolar distribution allows some interchange among the demes.