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Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five inhabited territories. The following is a list of ecoregions in the United States as identified by the World Wide Fund for Nature (WWF). The United States is a megadiverse country with a high level of endemism across a wide variety of ecosystems.
The United States is part of North America. The environment of the United States comprises diverse biotas, climates, and geologies. This diversity leads to a number of different distinct regions and geographies in which human communities live. This includes a rich variety of species of animals, fungi, plants and other organisms.
The commission was established in 1994 by the member states of Canada, Mexico, and the United States to address regional environmental concerns under the North American Agreement on Environmental Cooperation (NAAEC), the environmental side accord to the North American Free Trade Agreement (NAFTA).
The report mapped the five main drivers of biodiversity loss to determine what is the main cause of biodiversity loss in each state. Wisconsin is the 11th most at risk state in the country for ...
The United States of America, a signatory who had not yet ratified the treaty by 2010, [18] produced one of the most thorough implementation programs through species recovery programs and other mechanisms long in place in the US for species conservation. [19] Singapore established a detailed National Biodiversity Strategy and Action Plan. [20]
The riparian corridor below downtown is a rare zone of urban biodiversity. Herons and egrets fish the spillway. Owls, coyotes, hawks, deer and even ringtail cats thrive in the surrounding woods ...
The bald eagle is the national bird of the United States and appears on its Great Seal.The bald eagle's range includes all of the contiguous United States and Alaska.. The fauna of the United States of America is all the animals living in the Continental United States and its surrounding seas and islands, the Hawaiian Archipelago, Alaska in the Arctic, and several island-territories in the ...
At present, several countries have already imported so many exotic species, particularly agricultural and ornamental plants, that their indigenous fauna/flora may be outnumbered. For example, the introduction of kudzu from Southeast Asia to Canada and the United States has threatened biodiversity in certain areas. [196]