Who else has a phobia of bears

the brown bear is a very important disseminator of fruit seeds. It feeds mostly on plants, roaming large territories and thus scattering undigested plant seeds all over the place.
As hunters, bears cull the weak and sickly animals, thus contributing to natural selection. As scavengers, bears clean up dead animal carcasses, which would otherwise pollute the forest environment and spread disease.

One of the reasons why grizzlies are important to the ecosystem is they keep other predators, such as cougars, coyotes and foxes at bay. Grizzly bears are terrestrial predators. This means that they affect the ecosystem from the top down. When they are no longer present in the ecosystem ungulate populations can grow out of control and alter the vegetation structure in an area. Another reason why Grizzly Bears are so important to the ecosystem is that they assist the vegetation by doing a lot of digging and foraging. This helps to mix up the nutrient level in the soil which helps to increase the ammonium and nitrate levels of the soil which helps other plants species. This helps the ecosystem where theys live to be more bio diverse and have a more even equilibrium.

One important reason is that the scientific community uses this type of bear as an indicator to determine the health of an ecosystem. A strong and flourishing Grizzly Bear population usually means a string and flourishing ecosystem with a thriving flora and fauna landscape.