category of endangered species Those of the planet's flora and fauna which are threatened with extinction. Hunting and poaching to fuel the trade in ivory, horn, skins, fur and feathers have long been a threat to already endangered species. Pollution, agricultural expansion, loss of wetlands, deforestation and other erosion of habitats have been added to the hazards. Human activity was responsible for most of the animals and plants known to have been lost in the past two centuries
species conservation programme An organized group of activities and procedures, often run by a government agency or a nonprofit organization, to preserve and protect living organisms designated as being at risk
plant species reintroduction Reintroducing wild plant species to their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes
