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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.
Mangroves are trees or shrubs that grow in low-oxygen soil near coastlines in tropical or subtropical latitudes. [8] They are an extremely productive and complex ecosystem that connects the land and sea.
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.
At the dawn of the historic period, their successors were the Cochimi, foragers who exploited the natural resources of the coast, the inland plains, and the Sierra de San Francisco. Travelers trekking into this mountainous region can still see the natives' cave art. Spanish explorers arrived in the area in the 16th century.
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.
Lake Turkana (/ t ɜːr ˈ k ɑː n ə,-ˈ k æ n-/) is a saline lake in the Kenyan Rift Valley, in northern Kenya, with its far northern end crossing into Ethiopia. [2] It is the world's largest permanent desert lake and the world's largest alkaline lake.