If all trophic levels are being controlled by the abundance of resources available to plants it would be called _____________.
A) Bottom up control.
B) Top down control
C) Trophic limitation
D) Producer limitation

Question

Quizplus · Accepted Answer

Bottom-up control occurs when the abundance of resources available to plants controls the populations of all other trophic levels. This means that if the resources available to plants increase or decrease, it will directly affect the abundance of herbivores, predators, and other consumers in the ecosystem. Top-down control, on the other hand, occurs when the populations of consumers at higher trophic levels control the abundance of lower trophic levels, and trophic limitation refers to when the availability of a specific resource limits the growth or reproduction of an organism or population. Producer limitation is not a commonly used term in ecology.

If All Trophic Levels Are Being Controlled by the Abundance