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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of mathematical biology 27 (1989), S. 91-104 
    ISSN: 1432-1416
    Keywords: Population genetics ; Bifurcation theory ; Indefinite weight functions ; Sub- and supersolutions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract We discuss a selection-migration model in population genetics, involving two alleles A 1 and A 2 such that A 1 is at an advantage over A 2 in certain subregions and at a disadvantage in others. It is shown that if A 1 is at an overall disadvantage to A 2 and the rate of gene flow is sufficiently large than A 1 must die out; on the other hand, if the two alleles are in some sense equally advantaged overall, then A 1 and A 2 can coexist no matter how great the rate of gene flow.
    Type of Medium: Electronic Resource
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