Most of the endangered species are victims of which of these following factors?
1) Overexploitation: Overexploitation means harvesting species from the wild at rates faster than natural populations can recover. Overfishing and overhunting are types of overexploitation.
2) Habitat loss and fragmentation: Forest loss and degradation are mostly caused by the expansion of agricultural land, intensive harvesting of timber, wood for fuel and other forest products, as well as overgrazing.
3) Co-extinctions: Coextinction of a species is the loss of a species as a consequence of the extinction of another.
4) Alien species invasion: If a new habitat is similar to the native habitat of an alien species, it may survive and reproduce. It successfully out-compete native organisms for food and habitat, as a result, the increase its population and harm ecosystems in its introduced range