The politics of conservation and development. On actors, interface and participation. The case of Ngorongoro Conservation Area, Tanzania

agropastoral systems comportamiento humano comportement humain conservation de la nature cultivation cultivo ethnic groups faune et flore sauvages hatos herds human behaviour indigenous knowledge interest groups multiple land use nature conservation nature reserves participation pastizales pastoral society pastoralism pastoralisme pastoralismo pastures pratique culturale reservas naturales sociedad pastoral tanzania tanzanie tourism tourisme troupeau turismo uso multiple de la tierra vida silvestre wildlife