What is a predator that's prey for its predator called?

Answer 1

Some animals are both predators and prey for other nastier predators, A good example is the Grizzly Bear. It is now a top predator, but was once prey for the Short Faced Bear, an animal that died out in North America some 10,000 years ago. It was subject to secondary predation. The Grizzly was a primary predator at the time.

Usually the producers in a system are plants or microbes that convert chemical or solar energy into starches and sugars. Then follows a long string of consumers each consuming the previous level.

In the case of a string leading to the short faced bear (which would include the grizzly) this could be:

algae->small aquatic insects-> small fish> several levels of fish predators going up to salmon->grizzly bears ->short faced bear. The stages between algae (producer) and the short faced bear (ultimate consumer) are identified as primary, secondary , tertiary quaternary, etc consumers.