Los Ecosistemas naturales

1.The ecosystems
Sesto biosphere from the bottom of the ocean to the top of the mountains, contains the following parts: all the hydrosphere, the geosphere and some the troposphere.
Ecosystems
The group of organisms that live in a particular place that sestableixen relations established between them and the environment that constitute a functioning unit of nature. You can distinguish the following elements:

The biocenosis or community is the set formed by all living beings living in an ecosystem. The individuals in the community who belong to the same species is a population.

The biotope: the place or area occupied by a community.
3.Lalimentació to lecosistema
Trophic levels
· Producers: Son agencies Autotroph
· Consumers: Sounds heterotrophic organisms that consume organic matter daltres living beings:
1.Primari: Herbivores are animals that salimenten plants.
2.Secundari: are carnivorous animals - herbivores.
3.Terciaris or superdepredadors: carnivore - carnivorous.
· Rotting: heterotrophic organisms that salimenten of dead matter.
4.Cadenes and food networks
A food chain consists of a linearly ordered series dorganismes where each individual is the individual who eats the proceeds.

5.The traffic matter and energy lecosistema
Lenergia dun matter and flow for ecosystem and food chains are used by all agencies as follows:
6.Lequilibri in ecosystems
The cerixement population is daquest number laugment or decrease over a period of time.
When environmental conditions are stable, the number dorganismes of lecosistema and their biomass, ie, the amount of living matter it contains, regulates only. Then we say that lecosistema is in balance.

7.Levolució ecosystems
What's the process of goose. Begin the process sometimes breaks down after a fire and etc. .....
· Human influence on ecosystems lactivitat
1.Lexcés hunting and fishing: destabilization of lecosistema-lequilibri
2.La pollution: labocament of toxic substances in the sun ......
3.The fires: if they were again, then you can not reach climax
4.La transformation of the land: the construction and buildings ... Dindústries

4.Cadenes and food networks
A food chain consists of a linearly ordered series dorganismes where each individual is the individual who eats the proceeds.