The term ecosystem was coined in 1935 by the Oxford ecologist Arthur Tansley to encompass the interactions among biotic and abiotic components of the environment at a given site. It was defined in its presently accepted form by Eugene Odum as...

An ecosystem consists of a biological community and the abiotic factors on which it relies. These factors include sunlight, water, elements, and minerals. Energy flows one way through an ecosystem, starting as sunlight absorbed by primary producers,...

Environmental monitoring detects changes in the health of an ecosystem and indicates whether conditions are improving, stable, or deteriorating. This quality, too large to gauge as a whole, is assessed by measuring indicators, which represent more...

Living things, whether plants or animals, continually interact with their surroundings in many ways. All of the organisms in a given area, plus the nonliving things in that area like water, soil, and air, comprise an ecosystem. The word ecosystem is a...

An ecosystem is a natural unit consisting of all plants, animals and micro-organisms in an area functioning together with all the non-living physical factors of the...

Leon Panetta remembers when his grandfather fished off California's coast hauling in catches that once made Monterey the sardine capital of the world and the backdrop for the 1945 John Steinbeck novel "Cannery Row."Overfishing ended that, and Monterey hit hard times. On Wednesday Panetta, the...

The Forever Wild Land Trust has purchased nearly 10,000 acres of mountain and aquatic habitat along the Coosa River to protect it from development, state conservation officials announced MondayThe 9,800 acres, located near Rockford, is part of the Coosa Wildlife Management Area and one of...

Federal and state wildlife officials said Friday they are investigating the killing of a grizzly bear in north-central Idaho, where the last confirmed sighting of the species was in 1946.The bear, a member of a threatened species, was killed Monday by a hunter near Kelly...

Iraqi environmental officials said Thursday that part of their country's fabled marshlands have been restored with international help, but further effort is needed to revive the ecosystem."Our objectives are to restore ecosystems in the marshlands, and also to control and monitor factors affecting bio-diversity," said...

Essay investigates the differences in the Rocky Shore ecosystems.

Defines an ecosystem as the system of interacting organisms and their environment. Describes how animals and plants interact in an area and the environment that affects them. Discusses a Saline Marshlands ecosystem.

Provides the details of a biology lab which attempts to create an ecosystem that could maintain it self forever without outside interferences. Describes a terrestrial ecosystem which was formed in a bottle that was sealed virtually airtight. Details the success of the hypothesis and what mistakes were made.