Three main forms are usually recognized throughout the affected species:

With current efforts to reduce the human impact on this and many other affected species the population is back on the rise.

This tameness is eventually lost or reduced in some species but many island populations are too small or breed too slowly for the affected species to adapt quickly enough.

In spite of this, N. rajah was one of the less affected species and relatively few plants perished as a result.

Because the affected species have long lifespans, and birth rates of only about one offspring per year, populations are not expected to recover quickly.

The most affected species include little brown bats, northern long-eared bats, eastern pipistrelles, and also already-endangered Indiana bats.

Under the Endangered Species Act, unless steps are taken to protect the affected species, governments and even private citizens can face criminal penalties.

Even intra-guild priority effects could have important consequences at multiple trophic levels if the affected species are associated with unique predator or prey species.

However, the persistence of organo-chlorides in the environment has ensured that the rate of recovery of affected species has been slow.

The White-bellied Sea Eagle was one of the more affected species, probably due to its feeding in areas heavily treated with pesticide such as swamps.