Hence, we see that all types of ecosystems depend on a diverse group of species that are dependent on each other to survive. The greatest threat to biodiversity is the loss of natural habitat due to several factors such as overgrazing, damage to coral reefs, deforestation, hunting animals and draining wetlands. This throws the whole balance out of gear which is difficult to come back to normalcy again. 

Even pollution in the oceans and seas weakens the habitat as aquatic beings like sharks begin to die. If sharks die, then the population of other creatures that the sharks eat increases, throwing the whole balance out of gear. Even if an animal like the panda or the elephant is over-hunted, it can become extinct. This breaks the important link in the food chain and the balance in the ecosystem is lost. In some cases, this may push the ecosystem to diversify; but this diversification may take many years. Hence, what consumers can do is to depend on a selective species of predators, keeping in mind the balance of the eco-system to be maintained.

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