Related by context. Frequent words. (Click for all words.) 62 bioaccumulation 59 predation 58 trophic 57 plankton blooms 56 phytoplankton blooms 55 habitat fragmentation 55 protozoan 54 speciation 54 convergent evolution 54 predator prey 53 species extinctions 53 hydrological cycle 53 endocrine disruption 53 habitat degradation 52 sociality 52 sexual dimorphism 52 Ocean acidification 52 Soil erosion 52 terrestrial ecosystems 51 asexual reproduction 51 habituation 51 amphibian populations 51 overhunting 51 ecological degradation 51 Oxidative stress 51 biota 51 zooplankton 51 upwellings 50 evolutionary adaptation 50 planktonic 50 Cyanobacteria 50 eutrophication 49 salmonids 49 mutational 49 abiotic 49 extirpation 49 El Nino warming 49 species 49 megafauna 48 toxic algae blooms 48 glacial melt 48 bird migrations 48 Invasive plants 48 Snowball Earth 48 biogeochemical 48 atmospheric methane 48 ecological 48 ecology 48 Toxoplasma 48 cytokine storm 48 Sea otters 48 nitrogen fixation 48 interrelatedness 48 ungulate 48 aquatic habitats 48 anthropogenic 48 hyperinsulinemia 48 glacial melting 47 T. gondii 47 overfishing pollution 47 freshwater ecosystems 47 nutrient deficiency 47 genomic instability 47 mass extinctions 47 mammals 47 plankton 47 ecosystems 47 ocean ecosystems 47 nutritional deficiency 47 ocean acidity 47 anoxia 47 genetic alteration 47 oxygen depletion 47 oestrogens 47 PI3K pathway 47 hormone imbalances 47 salmonid 47 maladaptive 47 diatoms 47 caribou herds 47 relatedness 47 pathophysiological 46 parasitism 46 perturbation 46 Antibiotic resistance 46 aquatic insects 46 entropic 46 Melting glaciers 46 nutrient runoff 46 biotic 46 thawing permafrost 46 Indohyus 46 Toxoplasma gondii 46 pollinating insects 46 systematics 46 thermoregulation 46 hydrothermal activity 46 intersex fish 46 hypothalamic 46 rampant deforestation 46 aquatic ecosystem