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Definition: Ecosystem
Posted December 06, 2007 12:00AM
Ecosystem = "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 environment.
"Central to the ecosystem concept is the idea that living organisms are continually engaged in a set of relationships with every other element constituting the environment in which they exist. The human ecosystem concept is then grounded in the deconstruction of the human/nature dichotomy, and the emergent premise that all species are ecologically integrated with each other, as well as with the abiotic constituents of their biotope.
"Ecosystems can be bounded and discussed with tremendous variety of scope, and describe any situation where there is relationship between organisms and their environment. A system as small as a household or university, or as large as a nation state, may then be suitably discussed as a human ecosystem. While they may be bounded and individually discussed, (human) ecosystems do not exist independently, but interact in a complex web of human and ecological relationships connecting all (human) ecosystems to make up the biosphere. As virtually no surface of the earth today is free of human contact, all ecosystems can be more accurately considered as human ecosystems."
(Wikipedia) [en.wikipedia.org]
Most people do not realize that marine life removes carbon [www.sundancechannel.com] from the atmosphere. The phytoplankton that is the basis for the food chain in the ocean is very sensitive to temperature, and global warming [www.sundancechannel.com] will destroy its production. The loss of ocean plants will mean that 20% (an optimistically low number) less carbon [www.sundancechannel.com] will be removed from the atmosphere each year. Fortunately, one notable organization, Oceana [www.oceana.org], has ambitious plans to protect and clean the ocean ecosystem.
More... [www.sundancechannel.com]
"Central to the ecosystem concept is the idea that living organisms are continually engaged in a set of relationships with every other element constituting the environment in which they exist. The human ecosystem concept is then grounded in the deconstruction of the human/nature dichotomy, and the emergent premise that all species are ecologically integrated with each other, as well as with the abiotic constituents of their biotope.
"Ecosystems can be bounded and discussed with tremendous variety of scope, and describe any situation where there is relationship between organisms and their environment. A system as small as a household or university, or as large as a nation state, may then be suitably discussed as a human ecosystem. While they may be bounded and individually discussed, (human) ecosystems do not exist independently, but interact in a complex web of human and ecological relationships connecting all (human) ecosystems to make up the biosphere. As virtually no surface of the earth today is free of human contact, all ecosystems can be more accurately considered as human ecosystems."
(Wikipedia) [en.wikipedia.org]
Most people do not realize that marine life removes carbon [www.sundancechannel.com] from the atmosphere. The phytoplankton that is the basis for the food chain in the ocean is very sensitive to temperature, and global warming [www.sundancechannel.com] will destroy its production. The loss of ocean plants will mean that 20% (an optimistically low number) less carbon [www.sundancechannel.com] will be removed from the atmosphere each year. Fortunately, one notable organization, Oceana [www.oceana.org], has ambitious plans to protect and clean the ocean ecosystem.
More... [www.sundancechannel.com]
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