Related by context. Frequent words. (Click for all words.) 62 temperate forests 61 terrestrial ecosystems 61 diatoms 60 phytoplankton blooms 60 microenvironments 60 faunal 59 Cyanobacteria 58 avian species 58 diatom 57 temperate zones 57 species 57 biogeochemical 57 marine sediments 57 foraminifera 57 aquatic invertebrates 57 marine invertebrates 56 vertebrate species 56 planktonic 56 plankton blooms 56 mosses 56 taxa 56 deciduous forests 56 lichens 56 biodiversity hotspot 56 Phytoplankton 56 alga 56 invertebrate species 56 angiosperms 56 upwellings 56 lake sediments 55 acidic soils 55 prokaryotes 55 zooxanthellae 55 nitrogen fixation 55 organisms 55 seagrasses 55 hydrothermal vent 55 freshwater ponds 55 biota 55 Archaea 54 biodiversity hotspots 54 microscopic algae 54 placental mammals 54 marine organisms 54 freshwater ecosystems 54 morphologically 54 clades 54 archaea 54 subtropical climate 54 isotope ratios 53 ecologies 53 subtropical regions 53 relict 53 middens 53 stromatolites 53 vertebrate animals 53 unicellular 53 temperate regions 53 ecosystems 53 taxon 53 pollinating insects 53 ammonites 52 megafauna 52 marine reptiles 52 multicellular organisms 52 eukaryotic 52 systematics 52 micro climates 52 aquatic ecosystems 52 wetland ecosystems 52 naturally occurring 52 methanogens 52 microfossils 52 T. gondii 52 microbiota 52 forbs 52 trilobites 52 sediment cores 52 lowland forests 52 symbionts 52 landforms 52 morphological 51 protozoan 51 intertidal 51 phytoplankton 51 aquatic habitats 51 abundances 51 ecological niches 51 multicellular 51 dinoflagellates 51 mammalian species 51 invertebrates 51 herbaceous plants 51 calcareous 51 Sea otters 51 grassland birds 51 genetic variability 51 microscopic organisms 51 Late Cretaceous 51 spp 51 fungi