Which of the following describes the amount of organic material that is available for transfer to the next trophic level af subtracting material used for respiration?
net primary productivity
there will be less organic matter available
it decreases
ethanol
There isn't enough energy available to support more secondary consumers.
Net primary productivity
The amount of organic material available for transfer to the next trophic level after subtracting material used for respiration is known as Net Primary Production (NPP). NPP represents the energy that is captured by primary producers (such as plants) through photosynthesis, minus the energy they use for their own respiration. It is a measure of the energy available to support the growth and reproduction of consumers in an ecosystem.
To determine NPP, you need to calculate Gross Primary Production (GPP) and Respiration. GPP represents the total energy captured by primary producers through photosynthesis, while Respiration represents the energy used by the primary producers for their own metabolic processes. The difference between GPP and Respiration gives you the NPP.
Here is the step-by-step process to calculate NPP:
1. Measure or estimate the GPP: This can be done using methods such as measuring carbon dioxide uptake or using remote sensing techniques.
2. Measure or estimate the Respiration: Respiration can be estimated based on factors like temperature, species composition, or using empirical models.
3. Subtract the Respiration from GPP: Subtracting the Respiration value from GPP will give you the NPP.
By following these steps, you can determine the amount of organic material available for transfer to the next trophic level after subtracting material used for respiration.