Search results
Results from the WOW.Com Content Network
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.
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.
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.
Lake Enriquillo seen from Las Caritas National Park, near La Descubierta. Lake Enriquillo covers an area of 380 km 2 (150 sq mi), [1] and is the lowest point for an island country, falling 46 m (151 ft) below sea level. [5]
El Pinacate and Gran Desierto de Altar Biosphere Reserve (Spanish: Reserva de la Biosfera El Pinacate y Gran Desierto de Altar) is a biosphere reserve and UNESCO World Heritage Site [1] managed by the federal government of Mexico, specifically by Secretariat of the Environment and Natural Resources, in collaboration with the state governments of Sonora and the Tohono O'odham.
The puna is found above the treeline at 3200–3500 m elevation, and below the permanent snow line above 4500–5000 m elevation. It extends from central Peru in the north, across the Altiplano plateau of Peru, Chile and Bolivia, and south along the spine of the Andes into northwest Argentina.
Minnie Driver Cheekily Asks If Everyone Is ‘Getting New Faces for Christmas’ as More Stars Speak on Cosmetic Surgery
This stream operating together with its environment can be thought of as forming a river ecosystem. River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts.