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15 Cards in this Set
- Front
- Back
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Trophic structure |
Relationship between producers and consumers |
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Law of conservation of energy |
Energy not created nor destroyed Energy needed for any work Organs obtain energy from outside source |
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Law of energy degradation |
Systems changes for worse Orgnasms must prepare for this or they will die. Must obtain energy from outside source |
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Ecological efficiency |
% of energy transfered from one level to the next |
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Production |
Accumulation of energy at a given trophic level by growth |
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Primary production |
Amount of energy trapped by autotrophs |
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Primary productivity |
The rate at which autotrophs produce energy in form of food |
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Net primary productivity |
Degree of biomass (how much an area can sustain life). |
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R-selection |
Favoring organisms that reproduce beaucoup. |
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Pioneer species |
Initial inhabitant of an unoccupied area |
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Ecological succession |
The process of an evolving biological communities |
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Cool petite exclusion |
Species compete in a battle for resources the loser dies! |
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Niche |
Function or role of an organism (how it obtains food, air, H2O |
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Primary succession |
Biological colonization begins with new area. |
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Secondary succession |
Rebirth of a once occupied area |
