Related by context. Frequent words. (Click for all words.) 53 amphipods 53 aquatic invertebrates 53 quaggas 47 refugia 47 Sea otters 47 marbled murrelets 46 overharvest 46 mortalities 46 avian species 45 larval stages 45 habitat fragmentation 45 amphibian populations 45 intersex fish 45 seabird populations 45 Steller sea lion 45 aquatic habitats 44 snowy plovers 44 nitrogen deposition 44 phytoplankton blooms 44 eiders 44 Greater Yellowstone Ecosystem 44 Scientists theorize 44 migratory bird populations 43 marine invertebrates 43 shearwater 43 predation 43 Predation 43 elk calves 43 waterbird 43 overharvested 43 seals sea lions 43 nesting habitats 43 salmonid 43 longlining 42 marine mammal stranding 42 sage grouse populations 42 reproductive toxicity 42 methanogens 42 overhunting 42 IDFG 42 whirling disease 42 red legged frogs 42 foxes coyotes 42 pocket gophers 41 caribou herd 41 chytridiomycosis 41 cottontail rabbits 41 murrelet 41 sea lampreys 41 Bycatch 41 salmonids 41 planetary atmospheres 41 petrels 41 chytrid 41 aquatic habitat 41 elk bison 41 Bacterial infections 41 convergent evolution 41 biologists 41 snowshoe hares 41 causative agents 41 habitat degradation 41 causative agent 41 Steller sea lions 40 yellow legged frogs 40 photosynthetic organisms 40 Preble mouse 40 trophic 40 intertidal zone 40 foraging habitat 40 aquatic insects 40 grouper snapper 40 naturally occuring 40 breeding colonies 40 southward migration 40 vaginal secretions 40 reptiles amphibians 40 penguin colonies 40 Mule deer 40 reproduce asexually 40 zooplankton 40 caribou herds 39 snowshoe hare 39 Yellowstone ecosystem 39 golden plover 39 speciation 39 caribou populations 39 extirpation 39 opportunistic feeders 39 elk moose 39 voracious eaters 39 aquatic nuisance 39 minimally impacted 39 coyotes foxes 39 pronghorns 39 systematics 39 denning 39 Gunnison sage grouse 39 endemism 38 microbial ecology 38 hydrothermal fluids