Grizzly bears eat a variety of both plants (grasses, roots, and berries) and animals (insects, rodents, and fish).How would the NPP of a three-level food web containing grizzly bears compare to the NPP of a three-level food web having no grizzly bears or other omnivores?

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Quizplus · Accepted Answer

The presence of omnivores like grizzly bears can often lead to a decrease in NPP in a food web. This is because they consume both plant and animal material, reducing the amount of plant material available at the producer level. Without an omnivore present, the food web would likely have higher NPP as plant material would not be consumed as heavily.

Grizzly Bears Eat a Variety of Both Plants (Grasses, Roots