LIFESCI 7B Lecture Notes - Lecture 15: Vanga Kingdom, Vanga, Molecular Phylogenetics
Document Summary
Adaptive radiation combination of speciation and adaptation in the context of ecological opportunity. Adaptive radiation the rapid diversi cation of lineages as they ll di erent ecological niches beak shape correlated for a role. Adaptive radiation evolution of ecological and phenotypic diversity plus rapid diversi cation within a lineage. Speciation and adaptation occur in the context of ecological opp on a phylogeny node -- branching of to the next to the next to the next open niches. Clicker which type of phylogenetic tree should be most useful for identifying adaptive radiation: chronogram time component rapid speciation event adaptive radiation -- time, component and rapid radiation. You are visually inspecting a chronograph to look for a pattern that may be consistent with a radiation. which of the following are you looking for: clades with short branches and many nodes more nodes = more diverse. Shorter wait times in between speciation events = shorter branches.
