A community of organisms would have a down fall due to an unbalance in the food chain. Since a Grizzly bear is a third tropic level consumer, there would be an increase in tertiary consumers. This would then cause all the other level in a decrease in population due to over eaten.
I believe its carbohydrates?
The phenotype is the observable traits of an organism. You know, the behavioral trait, development, that sort of thing.
The same weight it would be anywhere else in the world.