BIO 1130 Lecture Notes - Lecture 4: Ernst Mayer, Parapatric Speciation, Gray Wolf

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Reproductive isolation populations (can"t interbreed within each other) Ernst mayer (1904-2005: biological species - species are groups of potentially interbreeding populations, which are reproductively isolated from other such groups. If you wanted to see if two organism are the same you have to see if they mate and produce viable young. can"t tell with mayer de nition. Over a dozen biological concept for species, don"t always this de nition (mayer de nition) Not considered to be the best de nition because of all the problems (ex bacteria: morphospecies - a group is so dramatically different that clearly they are separate organism. Ex bird are a different taxon group then reptiles because they ew, now we know that birds are reptiles. Reduction of wings to haltere: out group scores 0 springtail - closely related, cladistics - can do it with anything. Parsimony - the kiss principle (textbook: simplest explanation of whats going on.