Wetlands 54 Wetland ecology 30 Wetland management 13 Ecology 12 Dissertations, Academic (Ph.D) 9 Mangrove swamp ecology-- Salt water wetland, forest ecology 9 Wetland conservation 9 Wetland Ecology & Ecosystems 8 Natural resources 6 Remote sensing 6 Agriculture 5 Hydrology 5 Soil Science and Agricultural Chemistry 5 Thesis (Ph.D)-Environmental science 5 Agronomy 4 Aquatic ecology 4 Biodiversity 4 Conservation 4 Constructed wetlands 4 Kerala 4 Wetland plants 4 wetlands 4 Biodiversity conservation 3 Coastal wetlands 3 Ecohydrology 3 Environmental sciences 3 India 3 KAIPAD; 3 Lakes 3 Limnology 3