what is an ecosystem 005

7/25/2019 What is an Ecosystem 005

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What Is An EcosystemWhat Is An Ecosystem

An ecosystem is a natural unitAn ecosystem is a natural unit

consisting of all plants, animals andconsisting of all plants, animals and

micro-organisms (biotic factors) in anmicro-organisms (biotic factors) in anarea functioning together with all of thearea functioning together with all of the

non-living physical (abiotic) factors ofnon-living physical (abiotic) factors of

the environment.the environment.


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Auatic systems are those that containAuatic systems are those that containplants and animals that predominantlyplants and animals that predominantly

depend on a significant amount ofdepend on a significant amount ofwater to be present for at least part ofwater to be present for at least part ofthe year.the year.


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A large underwater formationA large underwater formation

created from the calciumcreated from the calcium

carbonate s&eletons of coralcarbonate s&eletons of coralanimals' can also refer to theanimals' can also refer to the

animals living on and near theanimals living on and near the

coral reef.coral reef.


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A desert is a landscape form or regionA desert is a landscape form or regionthat receives very little precipitation.that receives very little precipitation.eserts can be defined as areas thateserts can be defined as areas that

receive an average annual precipitationreceive an average annual precipitationof less than + mm ( in), or as areasof less than + mm ( in), or as areasin which more water is lost than falls asin which more water is lost than falls asprecipitation.In the /0ppen climateprecipitation.In the /0ppen climateclassification system, deserts areclassification system, deserts areclassed asclassed as BWhBWh (hot desert) or(hot desert) or BWkBWk(temperate desert).(temperate desert).


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E!"2*E4E!"2*E41reater 2ellowstone is the last remaining large,1reater 2ellowstone is the last remaining large,

nearly intact ecosystem in the northernnearly intact ecosystem in the northerntemperate 5one of the Earth and is partlytemperate 5one of the Earth and is partlylocated in 2ellowstone 3ational 6ar&. !onflictlocated in 2ellowstone 3ational 6ar&. !onflict

over management has been controversial, andover management has been controversial, andthe area is a flagship site among conservationthe area is a flagship site among conservationgroups that promote ecosystem management.groups that promote ecosystem management.*he 1reater 2ellow Ecosystem (12E) is one of*he 1reater 2ellow Ecosystem (12E) is one of

the world7s foremost natural laboratories inthe world7s foremost natural laboratories inlandscape ecology and geology and is a world-landscape ecology and geology and is a world-renowned recreational site. It is also home torenowned recreational site. It is also home tothe animals of 2ellowstone.the animals of 2ellowstone.


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8uman ecosystems are comple: cybernetic8uman ecosystems are comple: cyberneticsystems that are increasingly being used bysystems that are increasingly being used by

ecological anthropologists and otherecological anthropologists and other

scholars to e:amine the ecological aspectsscholars to e:amine the ecological aspects

of human communities in a way thatof human communities in a way thatintegrates multiple factors as economics,integrates multiple factors as economics,

socio-political organi5ation, psychologicalsocio-political organi5ation, psychological

factors, and physical factors related to thefactors, and physical factors related to the

environment.environment.


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*he region of the shore of a la&e or sea*he region of the shore of a la&e or sea

or ocean < the shore of a sea or ocean.or ocean < the shore of a sea or ocean.

what is an ecosystem 005

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