How do animals bring about soil erosion?

There has been some total clearing of the rainforest.

There has been some logging.

There are roads put in that:

help weeds to invade,

open up the canopy increasing light that changes what can live there,

open up the canopy causing water loss that changes what can live there,

cause a lot of erosion that damages the fringing reef.

Spread a lot of pollutants

Fed themselves to the crocodiles / got angry and killed the crocodiles

Caused rapid climate change which threatens immediately greater storm damage and then . . . who knows?