Loch Lomond, Scotland, forms a relatively isolated ecosystem. The fish community of this lake has not changed for a long time.
The lush Aravalli mountain range in the Rajasthan desert, India. A wonder how this vegetation can exist in hot Rajasthan, a place known for its Thar desert.
An aerial view of a human ecosystem. In the picture you can see the city of Chicago.
Ecosystems consist of a variety of abiotic and biotic compounds that interact with each other. The structure and composition are appropriate for the various environmental factors. Variations of impact are changes in the dynamics of the ecosystem. Some of the most important ingredients are: soil, atmosphere, solar radiation, water and living organisms.
At the heart of the ecosystem concept is the idea that living organisms interact with all other elements of their local environment. Eugene Odum, founder of ecology, said: "Any entity that includes all organisms (ie" community ") in a particular area that interacts with the physical environment, so that a flow of energy leads to a well-defined trophic structure and biotic Diversity, cycles (exchange of material between living and non-living parts) in the system form an ecosystem. "In the ecosystem, the species are interconnected and interdependent, others in the food chain and exchange energy and matter between themselves and their environment. The concept of the human ecosystem is based on the deconstruction of a human-nature dichotomy and the principle that all species are ecologically integrated with each other and with the abiotic components of their biotope.
A smaller unit is called microsystem. For example, a microsystem can be a rock and all life underneath. A macro-ecosystem could capture an entire ecoregion with its catchment area.