enviro - Ch6 SG - 5 steps on the Path to Sustainability 1....

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5 steps on the Path to Sustainability 1. There is natural capital 2. We degrade natural capital 3. We come up with solutions 4. With solutions there are tradeoffs 5. Individuals matter 4 Principles of Sustainability? Reliance on Solar Energy: Biodiversity: Functional Genetic Species Population Population Control: Taking out the animals that aren’t as strong Nutrient Cycling: You eat something that ate something that ate something that ate something Humans contribute to Natural Capital Degradation Reduction of biodiversity Elimination of predators Using renewable resources faster than they can be replenished Relying on polluting fossil fuels Species Richness: number of species a community contains Species Evenness: abundance of individuals within each species 5 Basic Types of Species interaction in an ecosystem: 1. Interspecific Competition 2. Predation 3. Parasitism - can harm host 4. Mutualism - “win win” 5. Commensalism - using without harming Methods predators use to catch prey: Herbivores - can just approach Carnivores - pursuit or ambush (also camouflage) Methods prey use to escape predators: Protective shells or thorns Camouflage Chemicals to repel or poison Ecological succession :
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gradual change of species Primary succession: starts with nothing
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This note was uploaded on 11/09/2011 for the course ENVIRO 101 taught by Professor Wood during the Spring '11 term at South Carolina.

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enviro - Ch6 SG - 5 steps on the Path to Sustainability 1....

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