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Terrestrial ecosystems occupy 55,660,000 mi 2 (144,150,000 km 2), or 28.26% of Earth's surface. [5] Major plant taxa in terrestrial ecosystems are members of the division Magnoliophyta (flowering plants), of which there are about 275,000 species, and the division Pinophyta (conifers), of which there are about 500 species.
Illinois ecoregion map prepared by the USEPA. The list of ecoregions in Illinois are lists of terrestrial ecoregions (see also, ecosystem) of the United States' State of Illinois, as defined separately by the United States Environmental Protection Agency (USEPA), and by the World Wildlife Fund.
Looking north on State Road 694 from the bridge over Intracoastal Waterway. Indian Shores, Florida on left, mangroves on right. The ecology of Florida considers the state's two Level I and three Level II/III ecoregions containing more than 80 distinct ecosystems.
The Science Education Resource Center, Carleton College, offers the following description: "Earth System science embraces chemistry, physics, biology, mathematics and applied sciences in transcending disciplinary boundaries to treat the Earth as an integrated system.
Terrestrial plants on State Game Land 100 in Centre County, Pennsylvania. A terrestrial plant is a plant that grows on, in or from land. [1] Other types of plants are aquatic (living in or on water), semiaquatic (living at edge or seasonally in water), epiphytic (living on other plants), and lithophytic (living in or on rocks).
Ecosystem services or eco-services are defined as the goods and services provided by ecosystems to humans. [3] Per the 2006 Millennium Ecosystem Assessment (MA), ecosystem services are "the benefits people obtain from ecosystems".
The Puerto Rico Department of Natural and Environmental Resources (PRDNER) (Spanish: Departamento de Recursos Naturales y Ambientales de Puerto Rico) is the executive department of the government of Puerto Rico tasked with protecting, conserving, developing, and managing the natural and environmental resources in Puerto Rico.
A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area.