Bill Notes - Species Evolution o specie latin for kind or...

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Species Evolution o “specie” – latin for “kind” or “appearance” o Ernst Mayr – distinguished evolutionary biologist; professor at Harvard University Developed concept of Biological species in 1942 o Typological Species – theory depicts species as immutable, static form typified by ideal forms that lived with God o Morphological Species – species recognized by physical form or morphology o Exemplified by Linnaeus’ work o Difficult to implement when wide variation of phenotypes exist o Biological Species – genetically distinct group of natural populations sharing a gene pool and being reproductively isolated from other groups o Introduced by Ernst Mayr in 1942 o Conspecific – members of same species; implies genetic link o Intraspecific – interactions between members of same species o Interspecific – interactions between members of 2 species o Exceptions to Biological Species definition 1) Pawnee – Canis lupus and Canis familiarus 4) Dabbling Ducks – all surface feeding ducks have similar courtship and breeding rituals; mallards
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Bill Notes - Species Evolution o specie latin for kind or...

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