Abiotic and Biotic Components of Ecosystem.

1. Topic :- Abiotic and Biotic
Components of Ecosystem
Presented by :- Ashish Verma
M.Sc III Semester
Paper :- Eco-Toxicology
Department of Zoology
Government Autonomous Post Graduate College Chhindwara
Madhya Pradesh 480221

2. • Introduction
• Components of Ecosystem
1. Abiotic Components
2. Biotic Components
• Conclusion
• References
Content

3. • An ecosystem is a community of living organisms like plants, animals,
and micro-organisms along with their physical environment such as
soil, water, climate all interact with each other in a specific area or
habitat
• Ecosystem can be small as a single tree or as large as the entire earth
Introduction

4. • Ecosystem consists of various abiotic (non-living) and biotic (living)
components
ECOSYSTEM
Abiotic
(Non-living)
Components of Ecosystem
Biotic
(living)

5. • Abiotic Components are the inorganic and non-living parts of the
world
• Abiotic components of an ecosystem include various physical and
chemical factors.
Abiotic Components
Abiotic Components
Physical Factors :- light, temperature,
precipitation, air, fire, and water
Chemical Factors :- pH, salinity, nutrients, moisture,
toxic substances, level of DO

6. • Biotic Components include living organisms comprising plants,
animals, and microbes.
• Biotic components are classified as autotrophs and heterotrophs,
based on how they get their food or organic nutrients they need to
survive
Biotic Components
Biotic Components
Autotrophs
(Self nourishing)
Heterotrophs
(other nourishing)

7. • Autotrophs are organisms that can synthesize the organic compounds
they need as nutrients.
They are the ultimate sources of organic compounds for all non-autotrophic
organisms, and for this reason, they are known producers of the biosphere
• Heterotrophs are the organisms which cannot synthesize the organic
nutrients they need and get them by feeding on the tissues of
producers or other consumers
Fungi, animals and most bacteria are heterotrophs.
Heterotrophs can be classified as Consumer and Decomposer.
Biotic Components

8. • Consumers are the organisms, such as animals, that feed on producers
and other consumers.
There are several classes of consumers, depending on their food sources :
herbivores (feed directly on plants), carnivores (feed on animals), omnivores (eat
both plants and animals) and detritivores (eat detritus).
Consumers can also classified into
(based on feeding level or trophic level)
1. Primary Consumers
2. Secondary Consumers
3. Tertiary Consumers
Biotic Components

9. Quick Recall
Ecosystem
Abiotic Biotic
Physical
Factors :-
Light,
Temperature,
Precipitation,
air, fire and
water
Chemical
Factors:-
pH,
salinity,
nutrients,
moisture,
etc.
Autotrophs
Heterotrophs
Producers
Consumers
Decomposers
1. Primary Consumers
2. Secondary Consumers
3. Tertiary Consumers

10. Abiotic and biotic components are interdependent in
ecosystems. Abiotic factors provide the physical and chemical
framework within which biotic components exist, and biotic
components, in turn, interact with each other and their abiotic
environment, shaping the dynamics and characteristics of the
ecosystem.
Conclusion

11. Thank You!