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6 Cards in this Set

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Biological species concept
groups of actually or potentially interbreeding pops. which are reproductivley isolated from other such groups
phylogenetic species concept
emphasizes not present properties of organisms or their hypothetical future, but rather their phylogenitic history
morphospecies concept
used by paleeontolgists. widely applicabe can become aribitrary and idiosyncratic
mechanisms of divergence
genetic drift and selection
allopatric model
most common in nature. species evolve from coming seperate from one another. geographic isolation produces genetic isolation and thus reproductive isolation.
vicariance
seperation of species by major land disconnections like tasmania.