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Unformatted text preview: streams not connected >> easier for specialization >> more freshwater species than saltwater Justus Van Liebig - Law of the Minimum plants need certain type/amount of nutrients miss an essential part >> die Victor Shelford - principle of tolerance limits (maximum) too much of something can also inhibit growth growth occurs best under a certain range of conditions factors will vary seasonally, geographically, throughout life placed in area of stress >> some organisms increase fitness generalist- have wide tolerance spet - have narrow tolerance hormesis - opposite effect in small doses than in high doses...
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- Fall '10