Lecture 14: Species and Speciation (EEB 122)
This lecture explores the mechanisms of speciation, defining species primarily through reproductive isolation and phylogenetic relatedness. It discusses allopatric and sympatric speciation, outlining the genetic and ecological stages of divergence into distinct populations and species.
Principles of Evolution, Ecology and Behavior (EEB 122)
Speciation is the process through which species diverge from each other and/or from a common ancestor. There are several definitions of species, most of which focus on reproductive isolation and/or phylogenetic similarities. This can cause some controversy. Speciation can result from geographical separation or ecological specialization. There are stages of speciation in which organisms cluster first into distinct populations before finally becoming different species.
Lecture 13: Sexual Selection (EEB 122)
Next · Lecture 15Lecture 15: Phylogeny and Systematics (EEB 122)