Overharvesting/overuse: Excessive harvesting were using of the land of organism.

Example: We are threatening the equilibrium of the biome by overfishing the salmon found in that area

Hippo cont.

Pollution: The presence in or introduction into the environment of a substance I think that has harmful or poisonous effects.

Example: pollution from nearby urbanized cities contaminate both water sources and the air affecting both environment as well as many animals living there

Population: With the increase of human population we expand our areas usually in areas of high biodiversity we inhabit these areas and try the way the new species of that land

Example throughout the years the number of temperate rainforest in the world have been decreasing due to human expansion