What does competition among organisms do to the population?

this is for my semester final.

4 Answers

  • 1 decade ago
    Favorite Answer

    Increasing population size reduces available resources limiting population growth. In restricting population growth, a density-dependent factor intensifies as the population size increases, affecting each individual more strongly. Population growth declines because of death rate increase, birth rate decrease or both. There is a reduction in the food supply which restricts reproduction resulting in less offspring. The competition for space to establish territories is a behavioral mechanism that may restrict population growth. Predators concentrate in areas where there is a high concentration of prey. As long as the natural resources are available, in sufficient quantity, the population will remain constant. As the population decreases so do the predators. The accumulation of toxic wastes may also limit the size of a population. Intrinsic factors may play a role in limiting a populations size. High densities may cause stress syndromes resulting in hormonal changes that may delay the onset of reproduction. Immune disorders are also reported to be related to stress in high densely populated areas.

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  • addams
    Lv 4
    3 years ago

    Competition Among Organisms

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  • Anonymous
    1 decade ago

    It limits the size of the population, but more importantly it creates an environment where evolution can occur. competition is one of the key requirements for progressive evolution.

    without competition, there is no way for traits to be selected for in a population. there is no survival of the fittest.

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  • 1 decade ago

    it limits the size of the population, which is essential for the stability of the ecosystem.

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