Related by context. Frequent words. (Click for all words.) 60 habitat degradation 58 sagebrush habitat 58 rampant poaching 58 overfishing pollution 55 overgrazing 55 megafauna 55 amphibian populations 55 habitat fragmentation 55 predation 55 subsistence hunting 54 overharvesting 53 freshwater turtles 52 caribou herd 52 Overfishing 52 Steller sea lions 52 Cook Inlet belugas 52 pesticide DDT 51 snowshoe hares 51 grassland habitat 51 caribou herds 51 marbled murrelet 51 extinction 51 beluga sturgeon 51 longline fishing 50 overfishing 50 subsistence hunters 50 species 50 honeybee population 50 overexploitation 50 ungulates 50 Bighorn sheep 50 Sage grouse 49 habitat 49 extirpated 49 elephant poaching 49 Yellowstone ecosystem 49 red legged frogs 49 Pacific walrus 49 extinctions 48 elephant herds 48 grassland birds 48 Mexican spotted owl 48 White Nose Syndrome 48 Feral hogs 48 endangered species 48 depredation 48 greater sage grouse 48 mountain caribou 48 Gypsy moths 48 mammals 48 ungulate 48 species extinctions 48 Mule deer 48 wolf populations 47 herring fishery 47 black footed ferret 47 bowhead whales 47 rampant deforestation 47 loggerhead sea turtles 47 bee populations 47 grizzly bears 47 chytrid fungus 47 milder winters 47 woodland caribou 47 Endangered Species List 47 migratory waterfowl 47 white tailed prairie 47 Yellowstone grizzlies 47 tailed deer 47 black tailed prairie 46 spiny dogfish 46 bowhead whale 46 federally endangered 46 biodiversity hotspot 46 deer elk 46 amphibian species 46 nonnative fish 46 pine marten 46 ringed seals 46 California condor 46 rookeries 46 boreal forests 46 polar bears 46 livestock grazing 46 Beringia 46 cormorants 46 extinct 46 warmer winters 46 mammoths 46 waterbirds 46 Grizzly bears 45 bowhead 45 Whooping cranes 45 woolly mammoths 45 whales seals 45 prolonged droughts 45 trumpeter swans 45 wintering grounds 45 invasive insect 45 black footed ferrets 45 migratory songbirds