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ECOSYSTEMS• The living community of plants and animals in  any area together with the non-living  components of the enviro...
• NATURAL ECOSYSTEMS :  (a)Terrestrial  (b) Aquatic includes freshwater and marine      water.• 2.ARTIFICIAL ECOSYSTEMS.  ...
COMPONENTS OF ECOSYSTEM  1.BIOTIC             2. ABIOTICBIOTIC COMPONENTS :(a) Producers/Autotrophs.(b) Consumers: primary...
• Plant      insect         frog(producer)   (primary consumer)             (secondary consumer) Snake             (tertia...
FOOD CHAINS  The transfer of food energy from  producers, through series of consumers  (herbivores and carnivores) to deco...
DEMERIT OF FOOD CHAINAlong with the nutrients, biomass and energy it also transports toxic substances from one organism t...
FOOD WEBThe inter-linking of different food chains withone another forms a food web.
Trees,grasses,vegetationGrasshopper    Rabbit      Mouse Lizard            Snake               Hawk          Decomposers
ECOLOGICAL PYRAMID  The relationship between producers  (autotrophs), herbivore and carnivores at  successive trophic leve...
HAWKS            SNAKE, LIZARD          RABBIT, GRASSHOPP                   ER             GRASSLANDSPYRAMID OF NUMBERS FO...
LIONS,                 TIGERS             SNAKES,BEERS,                WOLF         ALL ANIMALS DEPENDING               UP...
PARASITES             ALL HERBIVORES                 PLANTSPYRAMID OF NUMBERS FOR PARASITIC FOODCHAIN
CARN                  IVOR                    ES               HERBIVORES               PRODUCERSPYRAMID OF BIOMASS FOR FO...
LARGE FISH             SMALL FISH                PHYTO              PLANKTONPYRAMID OF BIOMASS FOR AQUATIC            ECOS...
CARNIVORE         S     HERBIVORES     PRODUCERSPYRAMID OF ENERGY
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6352.ecosystems 8

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Transcript of "6352.ecosystems 8"

  1. 1. ECOSYSTEMS• The living community of plants and animals in any area together with the non-living components of the environment such as soil, water, air constitute the ecosystem.• TYPES OF ECOSYSTEM : 1.NATURAL ECOSYSTEMS. 2.ARTIFICIAL ECOSYSTEMS.
  2. 2. • NATURAL ECOSYSTEMS : (a)Terrestrial (b) Aquatic includes freshwater and marine water.• 2.ARTIFICIAL ECOSYSTEMS. These include agriculture and aquaculture which are human engineered.
  3. 3. COMPONENTS OF ECOSYSTEM 1.BIOTIC 2. ABIOTICBIOTIC COMPONENTS :(a) Producers/Autotrophs.(b) Consumers: primary,secondary,tertiary(c) Decomposers/saprophytes.ABIOTIC COMPONENTS : These include the non-living components of the environment such as light, temperature, humidity , water, soil.
  4. 4. • Plant insect frog(producer) (primary consumer) (secondary consumer) Snake (tertiary consumer) Eagle (decomposers) Microbes
  5. 5. FOOD CHAINS The transfer of food energy from producers, through series of consumers (herbivores and carnivores) to decomposers with repeated eating and being eaten is known as food chain.• FUNCTIONS : -flow of energy of the ecosystem. -flow of nutrients. -flow of biomass.
  6. 6. DEMERIT OF FOOD CHAINAlong with the nutrients, biomass and energy it also transports toxic substances from one organism to another which finally leads to the BIOMAGNIFICATION. DDT was banned due to its harmful effects on birds. It hindered the formation of egg shells.
  7. 7. FOOD WEBThe inter-linking of different food chains withone another forms a food web.
  8. 8. Trees,grasses,vegetationGrasshopper Rabbit Mouse Lizard Snake Hawk Decomposers
  9. 9. ECOLOGICAL PYRAMID The relationship between producers (autotrophs), herbivore and carnivores at successive trophic levels in terms of their number, biomass and energy present at any one time in the level. TYPES :(a) Pyramid of numbers(b) Pyramid of biomass(c) Pyramid of energy
  10. 10. HAWKS SNAKE, LIZARD RABBIT, GRASSHOPP ER GRASSLANDSPYRAMID OF NUMBERS FOR GRASSLANDS
  11. 11. LIONS, TIGERS SNAKES,BEERS, WOLF ALL ANIMALS DEPENDING UPON TREES TREESPYRAMID OF NUMBERS FOR FORESTECOSYSTEM
  12. 12. PARASITES ALL HERBIVORES PLANTSPYRAMID OF NUMBERS FOR PARASITIC FOODCHAIN
  13. 13. CARN IVOR ES HERBIVORES PRODUCERSPYRAMID OF BIOMASS FOR FORESTS/GRASSLANDS
  14. 14. LARGE FISH SMALL FISH PHYTO PLANKTONPYRAMID OF BIOMASS FOR AQUATIC ECOSYSTEM
  15. 15. CARNIVORE S HERBIVORES PRODUCERSPYRAMID OF ENERGY
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