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Unformatted text preview: ap4ve Radia4ons • Characterized by rapid prolifera4on of new species • Can result from – invasion of new habitats (e.g. islands are sites of many cases of adap4ve radia4ons) – Evolu4on of a key adapta4on (e.g., shelled egg, vasculur system in plants) – Reinforcing adapta4on (ﬂowering plants and insects) Specia4on in nature • Is rela4vely unaﬀected by human habita4on or behavior • Rates are variable over evolu4onary 4me • Specia4on is well understood retrospec0vely but less well understood prospec0vely: the current state of knowledge for ongoing specia4on m...
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This document was uploaded on 12/01/2012.
- Spring '12