What is a trophic cascade problem? A problematic type of waterfall that kills many people.1When one species is over-hunted, their prey overpopulates, then kills off their own food source and starves, resulting in ecosystem collapse.2When all of the scavengers in an ecosystem boom in numbers due to a whale carcass, then disappear when the food runs out.3

A trophic cascade is an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative populations of predator and prey through a food chain, which often results in dramatic changes in ecosystem structure and nutrient cycling.

1. The first example you provided is not a trophic cascade. A trophic cascade involves changes in an ecosystem due to changes in the population of predators and prey, not a physical event like a waterfall.

2. The second example is a good illustration of a trophic cascade. If a top predator is over-hunted, its prey can overpopulate. This can lead to overconsumption of their own food source, which can then lead to starvation and potential collapse of the ecosystem.

3. The third example is also a type of trophic cascade. When a large food source like a whale carcass is suddenly available, scavenger populations can boom. However, once the food source is depleted, the scavenger population can crash, leading to significant changes in the ecosystem.