Food Chain and Food Webs

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Subtitle Title Layout FOOD CHAIN & FOOD WEB Submitted to :Vrushali mam Made by : Payal bulbule

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 A succession of organisms in an ecological community that constitutes a continuation of food energy from one organism to another as each consumes a lower member and in turn is preyed upon by a higher member.

Knowing More About FOOD CHAIN:

Every living thing needs energy in order to live. Every time animals do something (run, jump) they use energy to do so. Animals get energy from the food they eat, and all living things get energy from food. Plants use sunlight, water and nutrients to get energy (in a process called PHOTOSYNTHESIS). A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals. Knowing More About FOOD CHAIN

Food Chain Terms:

Producers Plants are called producers. This is because they produce their own food! They do this by using light energy from the Sun, carbon dioxide from the air and water from the soil to produce food – in the form of glucose/sugar. Food Chain Terms

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- The cycle of plants and how they make energy! The sun(light energy), water, minerals and carbon dioxide are all absorbed by the plant. The plant then uses them to make glucose/sugar, which is the energy/food for the plant. Oxygen is also produced by the plant in this cycle, which is then let off into the air! Have you noticed how clean and pure the air feels when there are plants around? They are filling the air with oxygen! Photosynthesi s

Consumers :

Consumers Animals are called consumers. This is because they cannot make their own food, so they need to consume (eat) plants and/or animals.

Primary Consumers:

Primary Consumers Usually eat plant material - they are herbivores. For example rabbits, caterpillars, cows and sheep.

SECONDARY CONSUMERS:

Usually eat primary consumers- they are carnivores. For example cats, dogs and lions . SECONDARY CONSUMERS

Tertiary Consumers:

Carnivores that eat other carnivores and secondary consumers are called  tertiary  consumers OR large carnivores Tertiary Consumers

Predators - Kill for food. They are either secondary or tertiary consumers Prey - The animals that predators feed on. :

Predators - Kill for food. They are either secondary or tertiary consumers Prey - The animals that predators feed on.

Scavengers - Feed on dead animals. For example, crows, vultures and hyenas are scavengers. :

Scavengers - Feed on dead animals. For example, crows, vultures and hyenas are scavengers.

Decomposers:

Bacteria and fungi are decomposers . They feed on decaying matter - dead plants and animals and in the process they break them down and decompose them When that happens, they release nutrients and mineral salts back into the soil - which then will be used by plants! Decomposers

A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals:

A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals

FOOD WEB:

A more realistic way of looking at the relationship of plants and animals in an environment Several food chains linked together A predator from one food chain may be linked to the prey of another food chain FOOD WEB

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FOOD WEB

TROPHIC PYRAMID:

A trophic pyramid and (a)a simplified community food web (b) illustrating ecological relations among creatures that are typical of a northern Boreal terrestrial ecosystem. The trophic pyramid roughly represents the biomass (usually measured as total dry-weight) at each level. Plants generally have the greatest biomass.Ecological trophic pyramids are typically one of three kinds: 1) pyramid of numbers, 2) pyramid of biomass,or 3) pyramid of energy. TROPHIC PYRAMID

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The trophic level (level 1) is plants (level 2) , then herbivores , (level 3) and then carnivores. The trophic level is equal to one more than the chain length, which is the number of links connecting to the base. The base of the food chain (primary producers or  detritivores ) is set at zero. Ecologists identify feeding relations and organize species into trophic species through extensive gut content analysis of different species. The technique has been improved through the use of stable isotopes to better trace energy flow through the web. It was once thought that omnivory was rare, but recent evidence suggests otherwise.

The End Thank You...:

The End Thank You...

MADE BY :- Payal Bulbule Samantha Bhisekar Anushree Matre Sakshi Bhagwatkar Indrayani Rahate Ritika Ghadiya:

MADE BY :- Payal Bulbule Samantha Bhisekar Anushree Matre Sakshi Bhagwatkar Indrayani Rahate Ritika Ghadiya

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