BIO 1130 Lecture Notes - Lecture 20: Liger, Zygote, Embryonic Diapause

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

Document Summary

Lecture 20: chapter 7, geographic variation and speciation continued. Morphological species concept: consists in bringing together under one species name, individuals possessing similar morphological traits, used by taxonomists when they want to identify a new species, specimens belong to a species if they morphologically resemble the. Type specimen (or holotype) of the species: holotype: type specimen is determined by the taxonomist as being at typical specimen showing all the unique feature of a species, concept that stems from the essentialism of aristotle. Morphological variability (darwinian concept) of a species is documented through the description of paratypes: paratypes: these specimens usually represent the morphological variability observed in the species. Because we can all interbreed, so we are a single biological species with a lot of morphological variation. Biological species concept: a group of populations whose members can interbreed in nature and produce viable, fertile offsprings.