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An Ecological Foundation for IPM
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Island Biogeography
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How are Island Biogeography and Agriculture Connected? Give me an example
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Community Succession More Diversity More Stability
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Community Succession
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Planting seed Fertilizers Weeding Soil preparation Insecticides Artificial selection Community Succession
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R vs K-selection species r-selection species. - High fecundity - Short generation time - Low competitive ability - High dispersal
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R vs K-selection species K-selection species. - Lower fecundity - Longer generation time - Higher competitive ability - Lower dispersal
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R
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Biodiversity and Stability More Diversity More Stability
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The facts Herbivores441493658 Monophagous171303142 Polyphagous2719516 Predators38111427 Parasitoids30136 Andow 1991 Population response to polyculture IncreaseVariable responseNo changeDecrease
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“Resource concentration hypothesis” Root 1973
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Monoculture Polyculture
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TOO MANY VARIABLES!!!!!!!!!!!!
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