Ecosystems of the world
Ecosystems consist of co-ocurring organisms, their connections to each other and to surrounding environments. We consider ecosystems to be natural, localized dividions of the biosphere where interacting populations are connected in network of compartments representing the different organisms.
Sorts of ecosystems
The simplest classification of local ecosystems involves unique environments – a biogeographic classification. An ecosystem inhabiting the floor of a submarine trench is much different from temperate forest system in example.
A more general classification is based on function and development shaped by extrinsic forces – a classification emphasizing controls. For example, the ecosystem of a mountain spring, which must endure dramatic changes in water availability and quality, harsh climate would be environmentally controlled.
Ecologists have been interested mostly in the function and development of local systems and they have paid little attention to the birth and death of larger ecosystems.
Source: Online Schooling