Term
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Definition
| Origin of new species lineage, splitting event that produces two or more spare species |
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Term
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Definition
| Evolutionary change out or above species level over long periods of time |
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Term
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Definition
| Barrier that impacts two species from producing fertile offspring |
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Term
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Definition
| Prior to fertilization, impede mating or hinder fertility, habit, temporal, behavioral |
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Term
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Definition
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Term
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Definition
| Different living situation |
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Term
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Definition
| Prevent hybrid zygot from viable fertile adult |
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Term
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Definition
| Gene flow interrupted or reduced when population divided into geographical isolated subpops |
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Term
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Definition
| Rapid and frequent allopatric speciation following geographic and reproductive isolation |
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Term
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Definition
| Occurs in overlapping populations, exploiting a new nich |
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Term
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Definition
| Region where closely related species meet, mate and reproduce |
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Term
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Definition
| Barriers strengthen (less mating) |
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Term
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Definition
| Barrier weakened (more viable mating) |
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Term
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Definition
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Term
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Definition
| Speciation takes place in short period of time followed by long period of stasis |
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Term
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Definition
| Species descend from common ancestor gradually diverging as unique adaptions acquired |
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Term
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Definition
| Difficult to determine, favors high speciation |
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Term
| Consequences of Speciation |
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Definition
| New species, extinction of old, reproductive isolation |
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