Threats to Biodiversity and Ecosystem

Threats to biodiversity and ecosystem can be broadly grouped as Natural and Anthropogenic (man-made).

• Natural threats include calamities like cyclone, earthquake, landslide, tsunami etc.

Anthropogenic threats include:

• Habitat destruction—on land; in streams, rivers, and lakes; and in the oceans. Human activities such as: deforestation; bottom trawling in the oceans; the damming and dredging of streams, rivers, and lakes; and the draining and degradation of wetlands, estuaries, and mangroves are responsible.
• Over-harvesting of plant and animal species as well as over-hunting. Lots of fish species are known to have reached their maximum exploitation level, and others will soon be at the ....