Related by context. Frequent words. (Click for all words.) 46 subpopulations 45 subpopulation 43 populations 41 Sage grouse 41 Populations 39 genetically distinct 38 avian species 38 salmonids 37 habitat fragmentation 37 genetic variability 35 migratory species 35 amphibian populations 35 temperate regions 35 clades 35 translocations 34 subgroups 34 threadfin shad 34 grassland birds 34 mortality 34 concentrations 33 crocodilians 33 fox squirrels 33 mortalities 33 mammalian species 33 Critically Endangered 33 brant 33 black footed ferret 33 tiger mosquito 32 HIV prevalence 32 Alaskan natives 32 temperate zones 32 amphibian species 32 overhunting 32 Yellowstone ecosystem 31 breeding colonies 31 mammal species 31 temperate forests 31 ungulates 31 primate species 31 mammals 31 terrestrial ecosystems 30 vertebrate species 30 polar bear populations 30 taxa 30 grebe 30 sagebrush habitat 30 population 30 waterbirds 30 breeding pairs 29 predation 29 migratory 29 species 29 ant species 28 subspecies 28 pronghorns 28 depopulating 27 nesting pairs 27 arthropod 27 deer herds 27 bird species 27 nestlings 27 caribou herds 26 wolf populations 26 migratory patterns 26 migratory routes 26 mosquito populations 26 Population 25 interbreeding 25 genetic diversity 25 apex predators 25 epidemics 25 insect populations 25 aquatic ecosystems 25 rookeries 24 spotted owls 24 censuses 24 ecologies 24 aquatic habitats 24 herds 24 densities 23 deer herd 23 migrations 23 habitats 22 nesting habitat 22 birthrates 22 lineages 21 habitat 21 refuges 21 bee populations 20 socioeconomically 19 enrollments 19 forest ecosystems 19 freshwater ecosystems 18 colonies 17 regions 17 ecosystems 17 communties 16 demographically 15 salmon fisheries 14 communites 12 communities