I AM HAFIZ MUHAMMAD WASEEM from mailsi vehari BSc from science college Multan MSC university of education Lahore i love Pakistan and my teachers

1. HAFIZ
MUHAM
MAD
WASEEM
LAHOR
E
PAKIST
AN

2. DEFINITON,CONCEPTS AND
IMPORTANCE
UNIVESITY OF
EDUCATION LAHORE
PAKISTAN

3.  large community of living organisms in
a particular area
 a community of organisms with
nonliving components, interacting as a
system
DEFINITION

5. LIVING (BIOTIC)
NON-LIVING/PHYSICAL
(ABIOTIC)
COMPONENTS

8. BIOTIC COMPONENTS

9.  Ecosystems are of any size, but
usually they are in particular places
SIZE

10.  exchange of energy and nutrients in the
food chain.
 These exchanges sustain plant and animal
life on the planet
 the decomposition of organic matter and
 the production of biomass……
BIODIVERSITY
FUNCTIONS/IMPORTANCE

12.  AQUATIC
 Marine
 Fresh water
 TERRESTRIAL
 All ecosystems on land
TYPES OF ECOSYSTEMS

13.  temperate forest,
 tropical rain forests,
 deserts,
 grasslands,
 the taiga (boreal),
 the tundra,
 the chaparral
ENVIRONMENTAL ECOSYSTEMS

15.  The enormous Amazon river, contains
20 percent of the world's flowing fresh
water.
 Though the Amazon covers only four
percent of the earth's surface, it
contains a third of all known terrestrial
plant, animal, and insect species
WORLD'S MOST IMPORTANT
ECOSYSTEM

16. The World Ocean is
the largest existing ecosystem o
n our planet.
Covering over 71% of the Earth's
surface, it's a source of livelihood
for over 3 billion people.
LARGEST ECOSYSTEM

18.  Microbiomes are
 communities of bacteria, fungi, protozoa,
algae, other one-celled microbes, and
viruses
 these interact with one another in complex
ways.
 These ecosystems are enormously
complex.
SMALLEST ECOSYSTEM

21.  Ecosystems are dynamic entities.
 subject to periodic disturbances
 in the process of recovering from some past
disturbance.
 The tendency of an ecosystem to remain
close to its equilibrium state, despite that
disturbance, is termed its resistance.
Dynamics

22.  Chapin, F. Stuart; Pamela A. Matson; Peter
M. Vitousek (2011). Principles of Terrestrial
Ecosystem Ecology (Second ed.). New
York: Springer. ISBN 978-1-4419-9503-2.
 Gurevitch, Jessica; Samuel M. Scheiner;
Gordon A. Fox (2006). The Ecology of
Plants (Second ed.). Sunderland,
Massachusetts: Sinauer
Associates. ISBN 978-0-87893-294-8
REFERENCES