Related by context. Frequent words. (Click for all words.) 50 Demographic trends 47 caribou populations 46 amphipods 45 Domoic acid 45 Migratory birds 45 southward migration 44 chinooks 44 overharvested 44 population densities 43 Sea otters 43 populations 43 overharvest 43 voracious predators 43 seabird populations 43 eiders 43 pelagic species 43 Unimak Island 42 avian species 42 elk calves 42 thresher sharks 41 species extinctions 41 insect populations 41 vaquita 41 Migrating birds 41 Yellowstone ecosystem 41 wintering birds 41 hatchery salmon 41 huntable 41 murrelet 41 migratory bird populations 40 Sage grouse 40 Puget Sound orcas 40 caribou herds 40 longlining 40 harp seal population 40 Warmer temperatures 40 voracious eaters 40 migratory bird species 40 sage grouse populations 40 Colossal squid 40 Predation 40 migratory geese 40 northern spotted owls 40 tundra swan 40 population 40 Leatherbacks 40 calving grounds 39 Mule deer 39 caribou herd 39 warmer wetter 39 bluebills 39 relate thereto 39 Hector dolphins 39 Southerly winds 39 golden plover 39 Calambokidis 39 snowy plovers 39 subpopulations 39 migratory paths 39 subpopulation 39 southward 39 migratory patterns 39 Fisheries biologists 39 mortalities 38 Steadily rising 38 elk moose 38 kangaroo rats 38 marbled murrelets 38 hotter summers 38 cottontail rabbits 38 migratory route 38 terrestrial ecosystems 38 antlerless harvest 38 Nortel strategic alliances 38 spawners 38 toxic algae bloom 38 migratory habits 38 northward migration 38 aspen stands 38 translocate 38 deer herds 38 glacial melting 38 waterbird 37 brant 37 waterfowl populations 37 bird migrations 37 Greater Yellowstone Ecosystem 37 foraging habitat 37 shrikes 37 Rapid urbanization 37 refugia 37 sexual dimorphism 37 Peanut allergies 37 saiga 37 blue winged teal 37 salmonids 37 migratory shorebirds 37 genetic variability 37 behavioral patterns 37 warmer winters 37 nesting habitat