Basics of Ecology: How Ecosystems Work: Energy Flow and Nutrient Cycles DVD

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How Ecosystems Work looks at the processes that are fundamental to all ecosystems. First introduced are the concepts of primary productivity, trophic levels, food chains, energy pyramids, and the flow of energy through ecosystems. The program then explains how carbon, nitrogen, phosphorous, and water cycle through ecosystems and how human activities can disrupt these cycles and throw them out of balance. Such imbalances can lead to accelerated eutrophication in lakes (in the case of phosphorous imbalance) and global warming (in the case of carbon imbalance). 2005.
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491218Basics of Ecology: How Ecosystems Work: Energy Flow and Nutrient Cycles DVD : In Stock