![]() The osprey is monitored because of the decline of one of their primary food sources, the cutthroat trout in Yellowstone Lake. Bald eagles and peregrine falcons were previously listed as endangered and threatened species, and the park has continued monitoring since their delisting. ![]() The park monitors bald eagles, golden eagles, ospreys, and peregrine falcons. The park supports 19 breeding raptor species, with additional species during migrations and seasonal movements. Canada goose numbers were relatively stable from 1987 to 2010, after which they increased substantially. Large flocks of Canada geese along the Yellowstone River accounted for 75% of all observations along the interior route. The greatest species diversity (55) and individual bird abundance (2,254) were observed along the Yellowstone route through the interior. In 2018, surveyors detected more than 3,100 individuals of 82 species. Surveys conducted in June, during the height of the songbird breeding season, occur on three routes: Mammoth (Indian Creek to Tower Junction), Northeast Entrance (Tower Junction to Round Prairie), and the Yellowstone Route (Dunraven Pass to Mary Bay). The surveys are road-based with the registered observer recording all birds seen and heard within a quarter mile radius survey points occur every half mile. Since the 1980s, Yellowstone National Park has participated in these long-term surveys conducted throughout North America. Long-term monitoring efforts help inform park staff of potential shifts in ecosystem function, e.g., climate change effects, for Yellowstone’s bird community and may guide future conservation of the park’s birds and their habitats.īreeding bird surveys are a continent-wide monitoring effort coordinated by the US Geological Survey, the Canadian Wildlife Service’s Research Center, and Mexico’s National Commission for the Knowledge and Use of Biodiversity (CONABIO). Data are collected on multiple species from a wide variety of taxonomic groups and have been maintained for 25 or more years for several species. The Yellowstone National Park bird program monitors a small portion of its breeding bird species to gather information on reproduction, abundance, and habitat use. There are currently no federally listed bird species known to breed in Yellowstone National Park. The variation in elevation and broad array of habitat types found within Yellowstone contribute to the relatively high diversity. Approximately 150 species nest in the park. These records document nearly 300 species of birds to date, including raptors, songbirds, shorebirds, and waterfowl. While the lowest population density is recorded by No income group available with a population density of only 24.4.Records of bird sightings have been kept in Yellowstone since its establishment in 1872. If we devide the global population into income groups we can see that Lower-middle-income countries has the highest population density of 130.9 people per square kilometer. While the sub-region with lowest population density for the yearĪustralia/New Zealand with only 3.9 people/km². When devided into sub-subregions we can see that Southern Asia had the highest population density of 307.7 people per square kilometer.Ĭlosely followed by Caribbean with a population density of 198.5 people/km²,Īnd Western Europe with 179.1 people living per square kilometer. The geographic region with the highest population densityĪsia with a density of 148.7 people per square kilometer.Ĭlosely followed by Africa with a population density of 46.0 people/km²,Īnd Europe with 33.8 people living per square kilometer. □□ Greenland with 0.1 people per square kilometer.įollowed by □□ Falkland Islands (Malvinas) with a density of 0.3 people/km²,Īnd □□ Western Sahara with 2.1 people living per square kilometer, if said population is spread out evenly across its land mass. The country with the lowest annual population density □□ Monaco with a density of 24779.9 people per square kilometer.Ĭlosely followed by □□ China, Macao SAR with a population density of 21133.8 people/km²,Īnd □□ Singapore with 8652.8 people living per square kilometer, if spread out evenly. ![]() The country with the highest population density A population density of 60.1 (people/km²).
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