If humans disturb animals in a location then those animals will move to a different location.
These animals are the first to disappear as human disturbance increases.
Animals in a location are the first to disappear as disturbance increases.
In a location, what disappears first when disturbance increases?

a: dirt
b: bushes
c: mussels
d: loose soil
e: Light
f: rain
g: clouds
h: animals