BIO220H1 Lecture 18: Lecture 18.docx
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BIO220H1 Full Course Notes
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Bio220: lecture 18 ecological consequences of genetic variation. More diverse communities should be more resistant to environmental perturbation and higher productivity. Plots that had more biodiversity had more biomass due to more number of guilds (variety of plant strategies) Question: do these processes that happened in level of different species happen in different genotypes. Are plant patches that are more genetically diverse able to support more insects: approach: grow groups of either monocultures (only one genotype)/polycultures (4 genotypes of. 8 genotypes) present: measure: the number and identify of: Is it due to sampling effect or interactions among genotypes. More genetically diverse plant communities support more predatory insects. Positive relationship more diverse= more insects coming to those patches. Mechanism: predators showed a positive response (more species than predators), depending on the genetic diversity of the plant. Started with the predators because they"re not eating the plants themselves.
