ECOSYSTEMS

An ecosystem is a physical environment with a particular set of conditions, plus all the organisms that live in it

An ecosystem can be natural or artificial

HIGHER TIER
Natural ecosystems have high biodiversity (high biodiversity means many different species of plants and animals coexist in the same environment)
Artificial ecosystems (greenhouse) are designed and maintained for a particular purpose so they have lower biodiversity

Weedkillers, fertilisers and pesticides maybe used in artificial ecosystems to prevent other animals from growing alongside crops. This leads to low biodiversity

Forestry plantations are very carefully set up, controlled and monitored. They will have less biodiversity due to the fact they haven't been established for as long as natural woodland

Fish farms will also have less biodiversity becuz of the shorter time they have existed compared to

	Creado por senz hace más de 11 años

Biology 4 Apunte sobre ECOLOGY IN THE LOCAL ENVIRONMENT, creado por senz el 18/04/2013.

ECOLOGY IN THE LOCAL ENVIRONMENT