ENVIRON 201 Lecture 4: Environ 201_ Lecture 4

• School: U of M
• Department: Environment
• Course: ENVIRON 201
• Professor: John Benedict

Document Summary

Raw material for adaptarion to local conditions. Pop. with higher denetic diversity are more resilient. Low genetic diversoty -> vulnerable to disease. Genetically similar parents mate and produce inferior offspring. Genetic diversity: encompasses the differences in dna among individuals, the raw material for adaptation to local conditions, populations with higher genetic diversity are more resilient, populations with low genetic diversity are vulnerable to environmental change or disease. What happens with lack of genetic diversity: inbreeding depression = genetically similar parents mate and produce inferior offspring, isle royale: What happens with lack of genetic diversity: inbreeding depression = bad, why i stopped going purebred and adopted a corgi/golden mutt, optional video: The bizarre truth about purebred dogs (some mature language): https://www. youtube. com/watch?v =acv10_wvgxo&feature=youtu. be. Species diversity: species diversity = the number or variety of species in a particular region. Evenness (relative abundance) = the similarity in numbers between species: greater number of species interactions often leads to greater ecosystem resilience.