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Birth
Death
Emigration
In addition the availability of resources such as food, water, space etc ; the presence of predators, climatic conditions, natural disasters, epidemics also could affect a population size.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoif the Death Rate was higher than the Birth Rate or the birth rate was higher than the death rate
Wiki User
∙ 11y agoThe number if births, the number of deaths and the number if individuals that enter or leave the population.
Wiki User
∙ 12y agoBirths, deaths, migration.
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What natural factors can change a population?
parasites predation weather and clement are four ways natural factors can change a populations size.
Which factors affect a populations growth regardless of the populations size?
density - dependent limited factors
How can populations change in size?
the populations can change in size because there could be more of the offspring.
Factors in the environment that limit the size of populations are known as?
predation
Which of these is the study of human populations size and the factors that influence it?
demography
What factors contribute to changes in populations?
parasites predation weather and clement are four ways natural factors can change a populations size.
Predators are abiotic factors that limit the size of prey populations true or false?
false
Which factors affect a populations growth regardless of the population size?
The basic needs like food, shelter are some of the factors that affect the population's growth regardless of the size.
How do seasonal variations affect population and ecosystem?
Yes. Seasons can change the size of populations
Why are populations in nature called dynamic?
Populations in nature are called "dynamic" because the amount of population fluctuates depending on the four factors that affect population size (Density dependent and independent factors, natural disasters, and competition [predation, parasitism and disease]).
Does natural selection require small population size?
No. Natural selection works in all populations. However, new alleles spread more slowly in large populations; the large size has a stabilizing effect. So one should expect large populations to change more slowly than smaller populations.
Are wildlife populations static (stay the same) or do they fluctuate (change) as part of an overall balance?
They change over time in response to factors in the environment such as weather and food supplies.
