how does population size affect relationships in an ecosystem?

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  • 1 decade ago
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    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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  • 1 decade ago

    look at it this way...

    the population of foxes depends on the population of rabbits and vice versa. if the population of foxes goes very high, then the rabbit's population will go very low since they are eaten by the foxes.

    if there are already very few rabbits to supply the foxes, the population of foxes will go low because of hunger or migration to other places.

    then, since there are already few foxes, rabbits' population will go up again because nothing is eating them.

    higher population size for rabbit will increase the population size for foxes because of the increase in supply in food.

    and the cycle goes on and on.,

    but of course, there are many other factors in the ecosystem affecting this situation. thus, this can only be theoretical.

    Source(s): biology graduate
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  • 3 years ago

    Biotic aspects are no longer only a itemizing of the residing organisms, plant, animal, fungi and so on yet how they extremely work together. area of what makes an organism alive is its means to react & work together with the two different residing organisms and the abiotic components of the atmosphere pass throughout the checklist of what defines an organism as residing and specify how the organism of interest accomplishes each and each ingredient of its existence cycle the two as area of its species and as area of its atmosphere. Intraspecies -the different individuals of its species and how they have interplay to forage, to mate and to enhance their youthful. Interspecies- appropriate species (sympatric) that % virtually a similar residing situations and nutrition. different species as predators/ parasites/ pathogens different species as prey/ mutual symbionts/ commensal symbionts different species that stay contained in a similar area yet do no longer without delay work together different than by using residing contained in a similar ecological equipment. Now seem on the abiotics and how those effect the intraspecies and interspecies interactions. Air or gasses available- altitude or volume dissolved in aquatic ecosystems Freshwater –availability and seasonality – degree of salinity area to forage, enhance and discover take care of or acquaintances and the version in its geographic topology or the alleviation varieties the organism inhabit. Soil creation- pedogenesis technique and the buildup of organic and organic remember (carbon sink) hearth climate/climate varieties selection/ seasons/ insolation Time

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  • Hans B
    Lv 5
    1 decade ago

    big population makes for more competition for resources and mates

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  • 1 decade ago

    SAME AS THE FRIST ANSWER BUT ALSO IF THE RESOURCES RUN OUT THEY WILL BE FORCE TO EAT EACH OTHER IF IT WAS US WE WILL MAKE WAR AN THE MATE ISSUE WILL HAVE THE SAME EFFECT

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