TYPES OF ECOSYSTEMS• Earth is a giant ecosystem where different  biotic and abiotic components are constantly  interacting...
FOREST ECOSYSTEM• Depends upon various factors such as annual  rainfall, its distribution in different  areas, mean temper...
PRODUCERS – Vegetation of the forest is the                           ra  producer. All contains chlorophyll pigment and  ...
GRASSLAND ECOSYSTEMS• Grasslands cover about 19% of the earth’s  total surface.• ABIOTIC COMPONENTS – Nutrients such as  C...
• SECONDARY CONSUMERS –  Foxes, jackals, snakes, frogs, lizards, wild dogs  etc.• TERTIARY CONSUMERS – Birds such as Hawks...
DESERT ECOSYSTEMS• Deserts constitute about 17% of  land, occurring in regions where annual  rainfall is less than 25 cms....
• CONSUMERS :  The most common are reptiles and insects  able to live under xeric conditions. Some  nocturnal rodents and ...
CROPLAND ECOSYSTEMS• Artificial system aimed at growing a single species  of own choice.  Wheat, maize, rice, bajra, jowar...
FRESHWATER SYSTEMS
ZONES OF A LAKE• Littoral zone-The zone close to shore• Limnetic zone - This is the layer of open water  where photosynthe...
MARINE ECOSYSTEMS• Marine ecosystems are among the largest of  Earths ecosystem. They include oceans, salt  marsh and estu...
ESTUARINE ECOSYSTEM• Estuaries form a transition zone between river  oceans and are subject to both marine  influences, su...
6377.types of ecosystems  10
Upcoming SlideShare
Loading in...5
×

6377.types of ecosystems 10

1,001

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,001
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
49
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

6377.types of ecosystems 10

  1. 1. TYPES OF ECOSYSTEMS• Earth is a giant ecosystem where different biotic and abiotic components are constantly interacting with each other.• TYPES : (a) Terrestrial – forest, grassland, deserts. (b) Man made – croplands. (c) Aquatic - fresh water, marine, estuarines.
  2. 2. FOREST ECOSYSTEM• Depends upon various factors such as annual rainfall, its distribution in different areas, mean temperature, relative humidity, total annual wet and dry period.• COMPONENTS : ABIOTIC – Inorganic, Organic litter, minerals. BIOTIC - Producers, primary consumers, secondary consumers, tertiary consumers and Decomposers.
  3. 3. PRODUCERS – Vegetation of the forest is the ra producer. All contains chlorophyll pigment and perform the process of photosynthesis. -Abiotic components are synthesized in the form of carbohydrates (food).PRIMARY CONSUMERS – Herbivores, insects, pests, birds, flies, spiders etc.SECONDARY CONSUMERS – Carnivorous animals like snakes, birds, fox, jackal etc.TERTIARY CONSUMERS – Top carnivores like lions, tigers, hawks etc.DECOMPOSERS – Microorganisms that recycles the nutrients.
  4. 4. GRASSLAND ECOSYSTEMS• Grasslands cover about 19% of the earth’s total surface.• ABIOTIC COMPONENTS – Nutrients such as C, N, H, O, P, S, etc. supplied by air and soil.• BIOTIC COMPONENTS – PRODUCERS- Herbs and shrubs. PRIMARY CONSUMER – Cattle, Rodents, Insects and all animals feeding on grass.
  5. 5. • SECONDARY CONSUMERS – Foxes, jackals, snakes, frogs, lizards, wild dogs etc.• TERTIARY CONSUMERS – Birds such as Hawks etc.• DECOMPOSERS – recharges the mineral contents of the soil and make it useful for farming.
  6. 6. DESERT ECOSYSTEMS• Deserts constitute about 17% of land, occurring in regions where annual rainfall is less than 25 cms.• Species composition is quite specific due to extreme climatic conditions.• BIOTIC COMPONENTS : PRODUCERS : Shrubs, some grasses, that have branched root system with stems and branches variously modified to reduce water loss. Eg. Cactus (Xerophytes)
  7. 7. • CONSUMERS : The most common are reptiles and insects able to live under xeric conditions. Some nocturnal rodents and birds. Camels “The ship of the desert “ feed on tender shoots of these plants.• DECOMPOSERS : Due to poor vegetation, the amount of organic matter available is less. Very few Thermophillic bacteria and fungi survive in such conditions.
  8. 8. CROPLAND ECOSYSTEMS• Artificial system aimed at growing a single species of own choice. Wheat, maize, rice, bajra, jowar, sugarcane, veget ables etc.• A no. of weeds also contribute like cynodon dactylon, euphorbia hirta, launaea nudicaulis etc.• COMPONENTS : ABIOTIC – Inorganic, Organic litter, minerals. BIOTIC - Producers, primary consumers, secondary consumers, tertiary consumers and Decomposers.
  9. 9. FRESHWATER SYSTEMS
  10. 10. ZONES OF A LAKE• Littoral zone-The zone close to shore• Limnetic zone - This is the layer of open water where photosynthesis can occur.• Profundal zone - Many lakes (but few ponds) are so deep that not enough light reaches here to support net primary productivity.
  11. 11. MARINE ECOSYSTEMS• Marine ecosystems are among the largest of Earths ecosystem. They include oceans, salt marsh and estuaries, mangroves, the deep sea and the sea floor, which have a higher salt content.• Marine waters cover two-thirds of the surface of the Earth. Such places are considered ecosystems because the plant life supports the animal life and vice-versa.
  12. 12. ESTUARINE ECOSYSTEM• Estuaries form a transition zone between river oceans and are subject to both marine influences, such as tides, waves, and the influx of saline water; and riverine influences, such as flows of fresh water and sediment.• The inflow of both seawater and freshwater provide high levels of nutrients and sediment, making estuaries among the most productive natural habitats in the world.• Act as breeding areas for deep water fishes.
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×