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22 Cards in this Set
- Front
- Back
Lentic Systems |
"Standing Water" - Lakes, ponds, pools etc - No dominant or unidirectional flow - Water can become stratified |
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Lotic System |
"Moving waters" |
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Freshwater Biota |
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Exploiting Lentic Systems |
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Freshwater Diversity |
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Evolution |
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Vicariance |
A form of allopatric speciation. There are two forms of speciation; Dispersal and Allopatry |
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Habitats may be temporary |
Important for migratory birds |
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Adaptations for temporary habitats |
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Physical Factors Cause Stratification in Aquatic Communities |
- Also stratification due to density because warmer water is less dense and it's at surface - Left: Cold at surface and moderate temperature at the bottom - Right: More photorespiration than photosynthesis on surface |
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Aquatic Communities Stratify due to biological factors |
Will go to the deepest part to avoid predators |
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Lake Types |
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Oligotrophic Lakes |
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Mesotrophic Lakes |
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Eutrophic Lakes |
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Anthropogenic Eutrophication |
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Liebig's Law of the Minimum |
Add nutrients and things will grow differently |
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- Bottom up control. - If stop giving nutrients, needs to recover |
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Eutrophic. Phosphorous was limiting nutrient |
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