BIO 200 Lecture Notes - Lecture 5: Ring Species, Eukaryote, Volvox
19 Jun 2015
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Bio 200_evolutionary biology- lecture 5: species concepts and phylogenetic trees. Different species are results of differences in places and resource desired. Different species can tell each other apart even if they may look similar to us. The resemblances between species are due to common ancestry does not equal. The morphological species concept: individuals of a single species share measureable traits. He classified species based on physical, habitual, and anatomical differences. For example the downy woodpecker and hairy woodpecker. They are similar yet different species because of different mating calls and characteristics that the individuals within the species do not have a problem with distinguishing. He came up with the biological species concept (bsc): Species are groups of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups . Non-species: do not mate or cannot produce fertile offspring.
