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BILD3

Lecture 10

TermDefinition
allopatric speciation reproductive isolation occurs because populations are geographically separated
sympatric speciation speciation in geographically overlapping populations (Greek “sym” = with, together) (mechanisms include habitat differentiation and polyploidy)
vicariance divergence of two populations due to emergence of a physical barrier (physical isolation)
dispersal divergence of a small population away from a large, ancestral population
habitat differentiation Sympatric speciation scheme in which mutations in a population allow individuals to exploit different conditions within the same environment.
polyploidy organism with > 2 copies of chromosomes
Created by: stacymdez
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