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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.
An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. [2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows.
The Tehuacán-Cuicatlán biosphere reserve is a protected natural area located in southeastern Mexico. Its name derives from its two main locations: Cuicatlán and Tehuacán, in the latter are their administrative offices, covers 490,186 hectares distributed among 21 municipalities in the state of Puebla and Oaxaca.
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".
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.
Biodiversidad de Puerto Rico Vertebrados Terrestres y Ecosistemas (1st ed.). San Juan, PR: Editorial Instituto de Cultura Puertorriqueña. pp. 397–548. National Marine Fisheries Service; US Fish and Wildlife Service, eds. (1992). Recovery Plan for Leatherback Turtles in US Caribbean Sea, Atlantic Ocean, and Gulf of Mexico.
The internal structure of Earth. In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite.It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be defined based on its phase (solid crust vs. liquid mantle).