Positive and Negative Feedback Loops - Connect these two concepts in relation to
ID: 870 • Letter: P
Question
Positive and Negative Feedback Loops
- Connect these two concepts in relation to ecosystem management.
Here is the definition of positive feedback loop: In positive feedback loops a change in the system causes more changes in the same direction. It causes amplification or growth of the signal. An example of a positive feedback loops is fruit ripening. Once one of the fruits on a tree ripens, it causes the others near it to ripen as well.
Here is the definition of a negative feedback loops: In negative feedback loops stabilize the system. They attempt to keep the system at a constant. If a change in the system occurs, the loops will try to counteract or reverse the change. An example of this is temperature regulation in mammals.
Explanation / Answer
Amounts of productivity are also dependent on the overall capacity of plants to capture sunlight which is directly correlated with plant leaf area and N content.
Net primary productivity (NPP) is the primary measure of biomass accumulation within an ecosystem. Net primary productivity can be calculated by a simple formula where the total amount of productivity is adjusted for total productivity losses through maintenance of biological processes:
NPP = GPP