Can anybody tell the factors that may threaten the ecosystem?And how can it be conserved?

Question

This is for my science report if you can answer this properly then this will be a great help.

Answer 1

Some threats:
1. Habitat loss - taking the habitat for other uses like roads, golf courses, fields, housing, business.
2. Habitat degradation - damaging the habitat in some way so that it is still there, but the habitat isn't as good as it used to be. Includes such effects as:
-- pollution
-- draining wetlands
-- bringing in non-native species that can quickly overpopulate and crowd out the natives without providing the food and shelter that the natives provided
-- fragmentation which is breaking the habitat into smaller islands of habitat
-- over-hunting, over-harvesting, or over-collecting of species that live in the ecosystem, upsetting the overall balance

As far as conservation goes, just put a "don't" in front of the items in the list above. "Don't fragment ecosystems into smaller parts that can't provide all the benefits that a large ecosystem can provide. Fill in spaces between islands of habitat to join them into a bigger one."