Related by context. Frequent words. (Click for all words.) 63 forbs 59 insect populations 57 mosquito populations 57 aquatic invertebrates 57 soybean aphid 56 nutrient uptake 55 larval stage 55 aquatic habitats 55 grassland habitat 55 migrating waterfowl 54 forage 54 seed germination 54 soybean aphids 54 genetic variability 53 aquatic ecosystem 53 pollinating insects 53 sawfly 53 grassland birds 53 insects 53 bioenergy crops 53 pronghorns 53 Culex tarsalis 53 phytoplankton blooms 53 armyworm 53 stinkbugs 53 wolf predation 53 bollworms 52 defoliation 52 herbaceous plants 52 whitefly 52 woody plants 52 wheat stubble 52 caterpillars 52 adelgids 52 whiteflies 52 cottontail rabbits 52 waterfowl populations 52 terrestrial ecosystems 52 vetch 52 bollworm 52 winterkill 52 wintering birds 52 grasshoppers 51 biocontrol 51 amphibian populations 51 nutrient runoff 51 aquatic insects 51 nitrogen fixation 51 rangeland 51 larvae 51 spotted knapweed 51 planktonic 51 avian species 51 cutworms 51 grasses 51 Yellowstone ecosystem 51 ash borers 51 knapweed 51 habitat fragmentation 51 Invasive plants 51 Bt crops 51 perennial grasses 51 nematodes 51 beetles 51 upland birds 51 aphids 51 coccidiosis 51 larval 51 Mule deer 50 insect 50 vertebrate animals 50 unfertilized 50 reintroductions 50 leafy spurge 50 inoculum 50 plankton blooms 50 stoneflies 50 deer herds 50 rangelands 50 infestations 50 aphid 50 ungulates 50 insect larvae 50 insect pests 50 feedgrounds 50 Culex mosquitoes 50 adelgid 50 wetland ecosystems 50 nematode 50 species 50 overwintering 50 predation 50 Feral hogs 50 salvinia 50 saltcedar 50 armyworms 50 rootworm 50 Bt toxin 50 spotted owl habitat 50 snowshoe hares 49 black footed ferrets