How does competition for resources limit the sizes of population within a habitat?

Answer 1

people need more land

Answer 2

Competition between members of the same species for limited resources of food is called intra specific competition.

Intra specific competition is an example of density-dependent factors, so intra specific competition for space and other resources (food and water) etc

Members of the same species have the same ecological niche.

Those living in the same habitat means they us the same resources.

If resources are limited this results in competition.

The more stronger competitor out competes the other species eventually eliminating other; because individuals fight for the limited resources and some die of starvation.

Not only the resources but also abiotic factors such as availability of space also means that some individuals will be unable to give birth rate to young ones in such harsh conditions.

And this is how the population (All the individuals of one species living together in a habitat at any one time is called a population) size decreases.

Answer 3

Competition is the act of two species or organisms battling for a certain goal such as trees for sunlight. Neither species/organism benefits and the populations will either remain the same or begin to decrease.

Answer 4

If there is competition, it can be assumed that there are limited resources. Hypothetically if we have 100 resources and 500 animals, and each animal needs at least 1 resource to survive, clearly not all animals will survive and at the most, 100 animals may survive, greatly limiting the population from 500 to 100. Taking into account other species who may be better competitors for winning resources, weaker species will eventually die out. If species B relies on species A for food, and species A becomes too little or dies out, species B will also die out.

Answer 5

The more competition there is (for food, for water, for shelter, etc.), the smaller the population size. This is because when there's competition, there's winners and there's losers. Those who win obtain the resources necessary for survival. Those who lose don't obtain the resources necessary for survival and die off.

Competition asserts a regulatory effect on population size, meaning that it is one of the factors that keeps a population at a particular level - is is one of the factors that decides its carrying capacity. If plotted on a graph you will see fluctuations above and below the mean as the population constantly readjusts itself (too many die one year from greater competition then there are fewer than average the next year to compete for resources, so the population grows beyond its carrying capacity and there is greater competition and the cycle continues).

Answer 6

The growth of a population is limited by:

• availability of food/water
• availability of shelter
• availability of room to expand the population
• fecundity of its members
• health of its members

Environment has a major role in almost all of these. Using the human race as an example during the last major ice age the human population in Europe almost became extinct as food was limited, the environment was cold and affected the health of the members, tribes were scattered and breeding was difficult, and there was limited space (not covered with glaciers) for the population to live. As the ice age departed these conditions were lifted and the population expanded.

Answer 7

If the amount of available nesting space is limited, some woodpeckers will not be able to raise young. My Science teacher told me the answer.

Answer 8

The competition for food and space controls the growth of natural populations. This is because the more food and space a species has the larger the population is able to grow.

Answer 9

as resources become less available the growth of a population slows or stops