A dependent clause is a clause that cannot stand on its own and make sense which is why it requires an independent clause to give it meaning.
So, what is the question being asked here? Is it for us to actually write a letter. Or is it for us to answer?
Answer:
Gray Stone Cliffs, and Sparkling clear spring
Explanation:
These describe the setting because the setting describe the place around him and the atmosphere here you can see he is near some gray stone cliffs with a sparkling clear spring nearby. Making this place sound calm and pretty, if he had said muddy brown spring with gray crumbling stone cliffs. It would have made the place sound old and gross rather than what it is.
A few would be maybe a change in mating? Like if the animal isn't leaving it's habitat to go and get nutrition and mate then something might be off with the animal, or the seasons are messing them up due to weather.
Another would be possibly be animals who usually don't go into competition, going into it with animals that are usually in a good zone, most likely due to food dropping or habitat population increase.
And then there's invasive species, they come in and kill off animal species causing a whole environmental habitat of animals to die off, eat their food and take in all the nutrients, and then possibly animals having to go off and find a new habitat causing them to become invasive species.
