Related by context. Frequent words. (Click for all words.) 62 wetland ecosystems 59 Soil erosion 59 aquatic ecosystem 56 habitats 56 capercaillie 56 ecological 56 freshwater ecosystems 56 wetland habitats 55 aquatic habitats 55 aquatic ecosystems 55 Invasive plants 54 habitat 54 conserve biodiversity 54 aquatic habitat 54 conserving biodiversity 53 salination 53 overharvested 53 biodiversity 53 grassland habitat 53 seabird populations 53 ecosystems 53 wildlife habitats 53 habitat fragmentation 53 fragile ecology 52 coastal ecosystems 52 peat swamps 52 foraging habitat 52 wildlife corridors 51 freshwater mussels 51 mussel species 51 ecology 51 overexploitation 51 soil salinity 51 polluting waterways 51 rampant deforestation 51 Everglades ecosystem 51 kingfishers 51 fragile ecosystems 51 streambanks 51 waterbirds 51 aquatic organisms 50 Poyang Lake 50 biodiversity hotspot 50 seagrass beds 50 wildlife 50 endangered mammal 50 heavily polluted 50 freshwater marsh 50 Yellowstone cutthroat trout 50 waterbodies 49 Rapid urbanization 49 overfishing pollution 49 aquatic invertebrates 49 groundwater depletion 49 ecologies 49 riparian zones 49 fauna 49 voracious predators 49 bio diversity 49 hydro electric dams 49 reed beds 49 seagrasses 49 forest ecosystems 49 wetland habitat 49 recharge groundwater 49 Dongting Lake 49 pollinating insects 49 mangrove forests 48 coastal dune 48 species 48 polluted rivers 48 toxic algae blooms 48 endangered 48 wildlife habitat 48 wetland 48 rivers 48 lowland forests 48 riparian vegetation 48 Sea otters 48 polluted waterways 48 Algae blooms 48 habitat degradation 48 Hawaiian monk seals 48 birdlife 48 nesting seabirds 48 hawksbill 48 tigers leopards 48 aquatic species 48 deplete oxygen 48 Wadden Sea 48 waterways 47 overharvest 47 riparian habitat 47 frogs toads 47 fragile ecosystem 47 conservational 47 larval stages 47 marine ecosystem 47 flora 47 coastland 47 drylands