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Ecology & environment
1.
2. Ecology and Ecosystems
Ecology is the scientific study of relations that living organisms
have with respect to each other and their natural environment.
Under ecology, we study various ecosystems which are a part
of the biosphere.
An ecosystem includes all the organisms and the nonliving
environment that are found in a particular place.
4. Ecological Succession
Ecological succession is the
observed process of change
in the species structure of
an ecological community
over time.
Ecological succession
occurs when the conditions
of an environment
suddenly and drastically
change.
5.
6. Food Chain
A food chain shows the feeding relationship between different
living things in a particular habitat.
Food chains show how energy is passed from the sun to
producers, from producers to consumers, and from consumers to
decomposers.
In any ecosystem, many food chains overlap. When this
happens, the food chain forms a food web.
8. Food Web
A food web is a graphical
description of feeding
relationship among species
in an ecological community.
It even specifies the energy
relation and transfer of
energy amongst them.
There are many food chains
contained in these food
webs
11. Forest Ecosystem
A forest ecosystem is
a terrestrial unit of
living organisms.
All interacting among
themselves and with
the environment (soil,
climate, water and
light) in which they
live.
12. Types Of Forest Ecosystems
Tropical Rain Forest
Tropical Seasonal Forest
Temperate Evergreen and Deciduous Forest
Boreal Forest
Savanna and Woodland
13.
14. Grassland Ecosystem
A biological community
that contains few trees
or shrubs characterized
by mixed herbaceous
vegetation cover,
dominated by grasses or
grass like plants.
It occupies about 19% of
earth’s surface.
15.
16. Types Of Grassland Ecosystem
Tropical and subtropical grasslands
Temperate grasslands
Flooded grasslands
Montane grasslands
Tundra grasslands
Desert and xeric grasslands
17.
18. Desert Ecosystem
A desert ecosystem exists
where there is little rainfall
and the climate is extreme in
harshness.
It occupies about 17% of
the earth’s surface.
19. Types Of Desert Ecosystem
Hot and Dry Deserts
Cold Deserts
Semi-Arid Deserts
Coastal Deserts
20.
21.
22. Aquatic Ecosystem
It is an ecosystem located in a
water bodies.
The two main types of aquatic
ecosystems are marine
ecosystems and freshwater
ecosystems.
26. Inference
• After studying and analyzing the various ecosystems, their
internal components, biotic factors; we can very well conclude
that man is the part and parcel of these God gift.
• It’s the foremost responsibility to include the conservation
and maintenance of these precious gift of nature as crucial
priority in our life.