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👉 Ecology: Study of ecosystem.
👉Ecosystem: It was coined by A.G Tansley
👉Environment: Everything that surrounds or affects an organism during its life time is collectively known as its environment. It comprises both living (biotic) and non-living (abiotic) components.
👉Components of Environment
Abiotic (Non-living) Biotic (Living)
Energy Green plants
Radiation Non-green plants
Temperature & heat flow Decomposers
Water Animals
Soil Man
👉When an ecosystem is healthy (i.e. sustainable) it means that all the elements live in balance and are capable of reproducing themselves. Ecosystem can be as small as a single tree or as large as entire forest.
👉Types of ecosystem
(i) Natural (ii) Artificial (e.g. Zoo, aquarium, gardens)
👉 Natural ecosystem can be classified as
(a) Terrestrial (e.g. Forests, Grasslands, deserts) (b) Aquatic (e.g. Lakes, Rivers, Oceans, Ponds)
👉Ecotone: Transition zone between two different zones of ecosystem.(Ecotone is a zone of junction between two or more diverse ecosystems)
e.g. Mangrove forests represent an ecotone between marine and terrestrial ecosystem
e.g. Coastal region, wetlands
👉 Characteristics of Ecotone
- It may be very narrow or quite wide
- It has the conditions intermediate to the adjacent ecosystems. Hence it is a zone of tension
- It is linear
- A well developed ecotones contain some organisms which are entirely different from that of the adjoining communities.
Thanks sir
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