Editing Wildlife (section)

===Chains of extinction===
This final group is one of secondary effects. All wild populations of living things have many complex intertwining links with other living things around them. Large [[herbivorous]] animals such as the hippopotamus have populations of [[insectivorous]] birds that feed off the many parasitic insects that grow on the hippo. Should the hippo die out, so too will these groups of birds, leading to further destruction as other species dependent on the birds are affected. Also referred to as a [[domino effect]], this series of [[chain reaction]]s is by far the most destructive process that can occur in any [[Biocoenosis|ecological community]].

Another example is the [[black drongo]]s and the [[cattle egret]]s found in India. These birds feed on insects on the back of cattle, which helps to keep them disease-free. Destroying the nesting habitats of these birds would cause a decrease in the cattle population because of the spread of insect-borne diseases.