BIO 1130 Lecture Notes - Lecture 3: Ernst Mayer, Rat Snake, Hybrid Zone

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

Document Summary

Species are groups of actually or potentially interbreeding populations which are reproductively isolated from other such groups (1942) Biological species concept does not apply to all organisms on the planet (e. g whole. Periods of time where a species overlap overtime but one of them dominates the other specie. When two species are in contact of each other, and in that region of contact they are still producing viable offspring called hybrid young. Recent creation of sub species name e. g dog. Dog used to be cannus familiarus (from cannus lupus wolf ) now it is cannus lupus. E. g green rat snake, orange rat snake --- same species but different sub name. Sub species are able to mate with each other because they are the same species but slightly modified for their own conditions familliarus. Extinction of one of the sub species in the hybrid zone. Creation of a new species from hybrid zones. When species physically get separated from each other.