The United States is unique among countries in that its terrestrial ecoregions span three biogeographic realms: the Nearctic, Neotropical, and Oceanian realms. Alaska is the most biodiverse state with 15 ecoregions across three biomes in the same realm. California comes in a close second with 13 ecoregions across four biomes in the same realm.

2024年12月13日 · North America has been divided into 15 broad, level I ecological regions. These highlight major ecological areas and provide the broad backdrop to the ecological mosaic of the continent, putting it in context at global or intercontinental scales.

This post will delve into three biomes of the United States: the Deciduous Forests, Grasslands, and Deserts. Each of these biomes possesses unique characteristics, supports different species, and faces its own set of environmental challenges.

In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology.

2017年4月25日 · There are over 17000 species of plants, 428 mammal species, over 300 species of reptiles and 91 species of insects. The country is divided into several ecological regions covering the 50 states. Alaska Peninsula Montane Taiga covers the Northern part of America. The climate in the area is dominated by high precipitation and moderate temperatures.

2024年12月13日 · Information and downloadable maps and datasets for Level III and IV ecoregions of the continental United States. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.

2024年7月6日 · Among the numerous biomes of North America, you may find forests, grasslands (or savanna), deserts, mountains, glaciers, estuaries, taiga (or boreal) forests, tundra, and river valleys in the United States.

2024年6月27日 · Does the US have all 7 biomes? Yes, the United States has basically every biome, including thick jungles, arctic tundra, swamps, deciduous forests, hot deserts, evergreen-covered volcanoes, flat grasslands, and bushy Appalachian Mountains.

By studying ecoregions, we begin to understand more about the history, ecology, and biodiversity of the United States. Conservationists use ecoregions to help in habitat protection and restoration projects and to produce recovery plans for endangered species.

Named places currently include National Parks, Ecoregions, Landscape Conservation Cooperatives, Marine Protected Areas, National Forests, DOI Unified Regions, States, and Counties. You can also search by clicking on the map …