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How does a tiger help us?

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how does a tiger Or lion help us to maintain the ecological balance?

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  1. Trophic levels are the feeding position in a food chain such as primary producers, herbivore, primary carnivore, etc. Green plants form the first trophic level, the producers. Herbivores form the second trophic level, while carnivores form the third and even the fourth trophic levels. In this section we will discuss what is meant by food chains, food webs and ecological pyramids.

    Food Chains.

    The feeding of one organism upon another in a sequence of food transfers is known as a food chain. Another definition is the chain of transfer of energy (which typically comes from the sun) from one organism to another. A simple food chain is like the following:

    rose plant -- aphids -- beetle -- chameleon -- hawk.

    In this food chain, the rose plant is the primary producer. The aphids are the primary consumers because they suck the juice from the rose plant. The beetle is the primary carnivore because it eats the aphids. The chameleon, a secondary carnivore, eats the beetle. The hawk is the tertiary carnivore because it eats the secondary carnivore, the chameleon. The hawk eventually dies and its remains are broken down by decay-causing bacteria and fungi.

    Except in deep-sea hydrothermal ecosystems, all food chains start with photosynthesis and will end with decay.

    Food Webs

    In an ecosystem there are many different food chains and many of these are cross-linked to form a food web. Ultimately all plants and animals in an ecosystem are part of this complex food web.

    Ecological Pyramids

    Trophic levels and the energy flow from one level to the next, can be graphically depicted using an ecological pyramid. Three types of ecological pyramids can usually be distinguished namely:

    Number pyramid.

    It is easily understood that many grass plants are needed to feed fewer snails on which, in turn, even fewer chickens would be able to feed. This in turn requires only a few people to eat the chickens that ate the snails. The Number pyramid shows the number of organisms in each trophic level and does not take into consideration the size of the organisms and over-emphasizes the importance of small organisms. In a pyramid of numbers the higher up one moves, so each consecutive layer or level contains fewer organisms than the level below it.

    Biomass pyramid.

    This pyramid indicates the total mass of the organisms in each trophic level. The size of the organism is over-emphasized and it can happen that the mass of level 2 is greater than that of level 1, because the productivity of level 1 is not taken into consideration. Thus an enormous mass of grass is required to support a smaller mass of buck, which in turn would support a smaller mass of lions.

    Energy pyramid.

    The Energy pyramid indicates the total amount of energy present in each trophic level. It also shows the loss of energy from one trophic level to the next. An energy pyramid shows clearly that the energy transfer from one trophic level to the next is accompanied by a decrease due to waste and the conversion of potential energy into kinetic energy and heat energy. The energy pyramid is more widely used than the others because comparisons can be made between trophic levels of different ecosystem. It is, however, more difficult to compile an energy pyramid than it is compile the other types of pyramids


  2. By being an efficient predator and maintaining evolutionary selection process in their prey.

  3. i think there was something about this in the lion king.

    well the lions/tigers eat the deer which eat the grass so a world without lions would be a world with too many deer and the grass would disapear because the deer would begin to over populate. then eventually the deer would die because there would not be enough food. so having lions and tigers keeps this whole ballance under check

  4. they help keep the food chain in balance..

    for example a lion eats gazelles and zebras right?  If there were no lions then the zebra and gazelle population would over populate because they would have no natural predators...which means since theres more of them they will keep eatting the plants and what they eat...so the plants will start to run out and eventually the zebras and gazelles will have no food so they will die...

    see how that works?

  5. One thing is for sure.  We have hurt the tiger far more than he could ever have been expected to help us.

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