Unformatted text preview: • The essential ingredient of diversification • Shift of concern from population to species creationism means concern is now with MACROEVOLUTION Macroevolution and Kinds of Speciation • Macroevolution: evolutionary change on grand scale, that encompassing origin of new taxonomic groups, and dealing with evolutionary trends and mass extinctions • Allopatric speciation: most common type • Sympatric speciation: much less common • Parapatric speciation: Species: Reminder and a Bit More • Species (df.): individuals capable of breeding with one another but not with members of another species • Species (refined df): Groups of actually or potentially interbreeding natural populations which are reproductively isolated from one another •...
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This note was uploaded on 04/10/2008 for the course BIOL 1a taught by Professor Symanski during the Winter '08 term at UC Irvine.
- Winter '08