Human interference.
- Poaching for food or black market sales and pet trade.
- Habitat encroachment, destruction or deforestation, due to logging, draining wetlands for planting, construction of roadways, housing, and industrialization.
- Lack of education concerning the value of endangered or threatened species for tourism and the ecosystems futures as a whole.
- Pollution in many forms, raw sewage, and toxins dumped into rivers, including everyday, and dangerous debris disposal mishandled
- Introduction of exotic, or foreign species into an enclosed environment.
- Deforestation
- Destruction of their natural habitats
- Lack of information and knowledge of people
- High demand in the market
- Lack of support from the local government in preservation
- Poverty and desperation
For more details, please see sites listed below.