A

AcclimatizationThe adjustment or increase in tolerance shown by a species in the course of several generations in a changed environment.
Afforestation

The process of transforming an area into forest, usually when trees have not previously been grown there

Alternative tourismThe common feature of ‘alternative tourism’ is the suggestion of an attitude diametrically opposed to what is characteristically viewed as mass tourism. Alternative tourism is often presented as existing in fundamental opposition by attempting to minimize the perceived negative environmental and socio-cultural impacts of people at leisure in the promotion of radically different approaches to tourism. Examples include ecotourism, green tourism, nature-oriented tourism, soft tourism, pro-poor tourism and defensive tourism.
Areas of high conservation valueAreas important at a regional or national level for the conservation of native fauna, flora, natural features or systems or sites of cultural significance.