Related by context. Frequent words. (Click for all words.) 62 mountain caribou 62 woodland caribou 59 caribou herd 58 caribou herds 53 boreal forests 53 Waterton Lakes National 53 lynx habitat 52 mountain pine beetles 51 pine beetle epidemic 51 grassland birds 51 wolf populations 51 grizzly bears 51 Mountain Pine Beetle 51 boreal forest 50 Yellowstone ecosystem 50 grizzly bear habitat 50 grizzlies 50 Yellowstone grizzlies 50 species 50 forests 50 pine beetle infestation 50 Invasive plants 49 biodiversity hotspot 49 boreal 49 waterbirds 49 pine beetle 49 migrating waterfowl 49 spotted owls 49 conserve biodiversity 49 Mexican spotted owl 49 Burns Bog 49 ecological degradation 49 habitat fragmentation 49 endangered species 48 black footed ferrets 48 freshwater ecosystems 48 habitat 48 ecologically fragile 48 biosphere reserve 48 red legged frogs 48 Sage grouse 48 wildlands 48 marbled murrelet 48 temperate forests 48 bull trout 48 horned rhinos 48 spotted owl habitat 47 ecologically sensitive areas 47 overgrazed 47 tiger habitats 47 elephant herds 47 refuges 47 feedgrounds 47 lowland forests 47 overhunting 47 grassland habitat 47 habitats 47 sagebrush habitat 47 timber harvesting 47 greater sage grouse 47 subsistence hunters 47 terrestrial ecosystems 47 caribou 47 black footed ferret 47 lynx 47 mountain pine beetle 47 livestock rearing 47 fireweed 47 Bighorn sheep 47 elk herds 47 feral animals 46 Bridger Teton 46 yellow legged frog 46 jack pine 46 deer herds 46 desert tortoises 46 clearcuts 46 wildlife sanctuaries 46 mussel species 46 wildlife 46 livestock grazing 46 grasslands 46 forestlands 46 transboundary 46 sage grouse 46 conservation 46 biodiversity 46 forested 46 drylands 46 red cockaded woodpecker 45 pronghorns 45 critically endangered species 45 conservancies 45 endangered species protections 45 pine plantations 45 ecologically sensitive 45 Grizzly bears 45 aboriginal peoples 45 overexploitation 45 overgrazing 45 bison herds