Related by context. Frequent words. (Click for all words.) 67 ecosystems 57 aquatic ecosystems 57 freshwater ecosystems 57 forest ecosystems 57 habitats 56 aquatic habitats 56 coastal ecosystems 55 flora fauna 55 marine ecosystems 54 landscapes 54 biota 54 landforms 54 aquatic ecosystem 53 biosphere 53 ecosystem 53 terrestrial ecosystems 53 monocultures 52 habitat fragmentation 52 ecological 52 fauna 52 flora 51 biomes 51 drylands 51 intertidal 51 biodiversity 51 ecology 50 seagrasses 50 wetland habitats 50 freshwater wetlands 50 ocean ecosystems 50 coral reef ecosystems 50 marine ecology 50 interrelationships 49 microclimates 49 wildernesses 49 biome 49 river deltas 49 watersheds 49 archipelagos 49 fragile ecology 49 biodiverse 48 biodiversity hotspots 48 fragile ecosystems 48 lifeforms 48 assemblages 48 landform 48 soils 48 species 48 biophysical 47 interconnectedness 47 conserve biodiversity 47 organisms 47 wildlife habitats 47 marine habitats 47 kelp forests 47 aquatic creatures 47 cultural heritages 46 riparian habitat 46 seagrass beds 46 marine ecosystem 46 hydrological cycle 46 ecologically 46 coral reefs 46 perturbations 46 symbiotic relationships 46 environments 46 morphologies 46 biotic 46 creatures 46 estuaries 46 monoculture 46 landmasses 46 Ecologically 46 estuarine 46 multicellular organisms 46 invertebrates 46 microbiota 45 benthic 45 Coral reefs 45 reed beds 45 tidal marsh 45 wetlands 45 contexts 45 sea creatures 45 keystone species 45 symbiotically 45 cultures 45 taxa 44 habitat 44 diatoms 44 bio diversity 44 interrelations 44 fertile soils 44 birdlife 44 grasslands 44 phylogeny 44 environmental degradation 44 nitrogen fixation 44 marine organisms 44 overexploitation 44 waterbirds