BOTANY 131 – ASSIGNED READINGS

BOTANY 131 – ASSIGNED READINGS - BOTANY 131...

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BOTANY 131 – ASSIGNED READINGS Eutrophication Eutrophication – due to human activities, Nitrogen and Phosphorus get into water Major human stressor in coastal ecosystems Serious research and changes made in 1960s (mid 20 th century major increase in Nitrogen and Phosphorus deposits) o Eutrophication results in Degradation of water (accumulation of organic materials) Degradation of Habitat quality (accumulation of organic materials) Changes in plant and animal populations (high plant production) Nitrogen and Phosphorus are needed in small quantities in water, human activities disrupt the amounts/concentrations Inputs come from: o Sewage plants o Run off of fertilizer Extra nutrients Algal Bloom o Pros: Increase food webs sustaining fish o Cons: Water degradation – effects on human sustainability Leads to bacteria growth – bacteria consumes oxygen Reducing aeration in bottom of water, problem for marine life o Hypoxic – low oxygen content
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This document was uploaded on 10/27/2011 for the course BOT 131 at Miami University.

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BOTANY 131 – ASSIGNED READINGS - BOTANY 131...

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