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ECOLOGICAL PYRAMID:-
Given by Charles Elton
It is graphical representation of food chain of an ecosystem.
Food Chain:-
It is linear or straight arrangement of trophic level in an ecosystem.
Shorter food chain has more energy.
Components of Ecosystem:
Importance of Biodiversity:-
Acc. to David Tilman long term outdoor experiment observed that plot having more species diversity has l
Term given by Tansley.
It is a part of nature where living organism interact with non-living.
Ecosystem services:-
It is a product of ecological process.
Robert constanza and their
Carbon cycle → CO2 cycle.
Carbon is essential macro nutrient which make frame work of all organic compound about 7
Food Web:-
Network like arrangement of produces and consumer in an Ecosystem. It is a group of more than one inter locked
Key Functions of Ecosystem:-
Productivity
Efficiency
Energy flow
Energy flow:- Ultimate source of energy in an ecosystem is sunlight or sun, while ultimate source of food in an ecosystem is producer.
Factors affecting rate of Decomposition:-
CLIMATIC FACTORS:-
Method of conservation of Bio-diversity:-
Insitu conservation:-
It em
FATE OF SOLAR RADIATION:-
(e) Ecotone and edge effect:-
It is transistional zone between two adjacent community.
Community sequence in hydro sere:-
1. Phytoplankton (pioneer species)
2. Submerged Plant.
3.
Biogeo chemical cycle:-
Level of Bio-Diversity:-
Genetic Biodiversity:-
Genetic variation increases with increases i
Trophic level:-
It is nutrition arrangement of produces and consumers in an ecosystem.
Or
It is a relation of eating a
Ecological Efficiency:-
It is ratio between energy assimilated (output) and energy ingested (output) in an ecosystem
It refers to totalling of gene species and ecosystem of region.
Term Biodiversity was popularised by Edward Willison
A common man canno
CHEMICAL NATURE OF DETRITUS:-
(1) When detritus is nitrogen rich them very fast role of decomposition occurs.
(
Rate of Decomposition:- Protein > Starch or > Cellulose > Lignin AND chitin.
Imp:-
Changes occurring during Biotic succession:
Small and short life plant changes into large and long life plant.
Unstable biotic
Community sequency in lithosphere:-
1. Crust ore → Primitive, undifferentiated
2. Foliose → Advanced,
Microbes as bio-control agents:
Bio-control is the biological method for controlling plant diseases and pests.
Ea
Ecology
It is a branch of science which studies the interactions among organisms and between the organism and its physical (abiotic) environm
Environment
Environment is referred to as the sum total of all the physical and biotic conditions which influence the organism in terms of su
Uses of Biodiversity:-
1. As source of food and improved variety:-
Why should we conserve Biodiversity?
(a) Narrow utilities:-
It include 5F (food, fodder, fibre, fuel and furniture).
&
Decomposition:-
It is the process of conversion of complex. Organic compound into simple raw material. An organism perform
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