Biodiversity 37 biodiversity 31 Conservation 27 Ecosystems 17 protected area 17 Environmental protection 14 Protected areas 11 Forestry 10 China 7 Indicator indicator 7 conservation status 7 Climate change 6 Ecology 6 climate change 6 conservation management 6 governance approach 5 human activity 5 marine policy 5 nature conservation 5 Biodiversity conservation 4 Birds 4 Conservation of the environment 4 Deforestation 4 Land use 4 Society & social sciences 4 Species richness 4 bird 4 deforestation 4 ecological modeling 4 endangered species 4