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Published byAmos Arnold Modified over 8 years ago
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Ecosystems Abiotic factors Biotic factors
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Haiti – key attributes of ecosystem 75% live on <$2/day soil erosion use wood for charcoal U.S. planted 60m trees
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Population Control Density dependent factors Density independent factors Disturbances – medium level of disturbance is thought to build the most diverse cosystems
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Survivorship Curves
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r vs K-selected species
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Keystone Species Has a disproportionate effect on its environment relative to its population size https://www.youtube.com/watch?v=_IWw8Ruz8Uo
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Trophic levels Producers/autotrophs Carry out photosynthesis How does respiration differ?
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Trophic levels Consumers/heterotrophs - herbivores secondary consumers - carnivores
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Trophic levels Scavengers Detritovores
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Business and Environment Beyond legislation and litigation..... http://greatecology.com/great-ecologys-top-5- must-watch-ted-talks/ Ecosystem values – provision (lumber), regulator (natural filter), support (pollination), resilience (absorb water in a flood), cultural
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Climate Change – Keeling Curve https://scripps.ucsd.edu/programs/k eelingcurve/2014/08/26/as-told-by- the-american-museum-of-natural- history/
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Biomes (1) tundra taiga/boreal forest temperate deciduous forest temperate rain forest
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Biomes (2) chaparral temperate grassland savannah tropical rain forest
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Biomes (3) deciduous forest desert wetlands
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Coastal / oceanic Ecology bog estuary intertidal zone pelagic (or bathyal or midnight zone) benthos upwelling coral reef mangrove forest
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Lake Ecology hypoxia euphotic zone littoral zone limnetic zone profundal zone benthic zone bathyal zone abyssal zone euphotic (light) littoral (near shore) limnetic (PS) profundal (deep) benthic (sediments +)
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Biomes - Listed tundra taiga/boreal forest temperate deciduous forest temperate rain forest chaparral temperate grassland tropical grassland tropical rain forest tropical seasonal forest desert wetlands
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