The protection of transborder areas in an ecological network system which take account of clusters of conservation areas represents an important step towards protecting natural heritage in Europe. Cross-border co-operation can help provide larger protected areas with uniform management and thus make a considerable contribution to the conservation of biodiversity. This report reflects the transborder co-operation in countries of central and eastern Europe, including Russia, the Baltic countries, Belarus and Ukraine.

Establishing protected areas (national parks together with wildlife sanctuaries) in North Thailand did not reduce the likelihood of forest clearing, but wildlife sanctuaries may have reduced the probability of deforestation. Where new roads are located affects how much of a threat they are to the protected areas.