Food chain YouTube Lecture Handouts

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Watch Video Lecture on YouTube: 4 Concepts & Exceptions in Ecosystem - Food Chain, Food Web, Pyramids, Biomagnification

4 Concepts & Exceptions in Ecosystem - Food Chain, Food Web, Pyramids, Biomagnification

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Food Chain Food Web Ecological Pyramids

Contents

  • Food chain

  • Trophic levels

  • Types of food chains

  • Food web

  • Significance of food web

  • Ecological pyramids

  • Disadvantages of ecological pyramids

Food Chain

Food Chain Image-1

Food Chain Image-1

Steps of Food Chains

Steps Of Food Chains Image

Steps of Food Chains Image

Trophic Levels

Trophic Levels Image

Trophic Levels Image

Types of Food Chain

  • Grazing food chain

  • Detritus food chain

  • Parasitic food chain

Food Web

Food Web Image

Food Web Image

Significance of Food Web

  • Maintain the ecological balance

  • Feeding relations among organisms

  • Energy flow and nutrient cycling

  • Alternate source of food

Ecological Pyramids

  • Pyramid of Number

  • Pyramid of Biomass

  • Pyramid of Energy

Pyramid of Number

Pyramid Of Number Image

Pyramid of Number Image

Pyramid of Number

Diamond shaped pyramid of numbers

Pyramid of Numbers: Diamond Shaped

Pyramid of Biomass

Pyramid of Biomass Image

Pyramid of Biomass Image

Pyramid of Energy

Pyramid of Energy Image

Pyramid of Energy Image

Disadvantages of Ecological Pyramids

  • Only indicates food chain

  • Decomposers ?

  • Single Organisms different trophic levels ?

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