Examine the energy pyramid below. How does the first level affect the carrying capacity of the ecosystem?

The amount of energy in the first level determines how many animals can be supported on the subsequent levels.

The first level of the energy pyramid usually consists of the producers which are the main source of energy for a food web or a food chain. They determine that how many number of species can be supported by the particular ecosystems at each subsequent levels of the energy pyramid. They are the main source through which energy arises in an ecosystem.