If the bird population eats only a specific species of plant and most of the plant population has been exterminated due to flooding, competition will occur followed by immigration of these birds. This is because the amount of plants has been reduced, resulting in poor availability of food for the birds, which will compete for the few remaining plants. After the birds consume the remaining plants, they will migrate to other regions in search of food.
The depenadant variable would be the thickness of fur on the rabbits.
Explanation:
A dependant vaiable is the vaiable measured or tested in an experiement. It depends on the hormones given to possibly change the fur thickeness. So the hormone would be an example of an indepenedant variable, making the fur thickess a dependent variable.