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How is population size in an ecosystem determined by the relative rates of birth immigration emigration and death?
Birth and immigration both add individuals to a population, increasing the population size. Similarly, deaths and emigration remove individuals, reducing the population. So growth would be equal to the sum of immigration and births, minus the sum of emigration and deaths.
What does it mean if a population is in equilibrium?
The birth rate and the Death rate are equal, providing there is no immigration/emigration of the population.
What aside from low birth rates and high deaths rates what can cause a country's population to decline?
Emigration.
What happens to population when the death rate is very close to the birth rate?
It achieves what used to be called "ZPG" - zero population growth. Births and deaths are essentially equal. The population sustains itself where it is, but does not grow or shrink.
A population that has a death rate great that its birth rate is said to be?
A population with a death rate greater than a birth rate has a declining population.
What are the four criteria for a population?
Population density, Immigration, Emigration Exponential Growth
How is population size in an ecosystem determined by the relative rates of birth immigration emigration and death?
Birth and immigration both add individuals to a population, increasing the population size. Similarly, deaths and emigration remove individuals, reducing the population. So growth would be equal to the sum of immigration and births, minus the sum of emigration and deaths.
What are four main characteristics of a population?
Birth Rate, Death Rate, Immigration, Emigration
What are four factors that affect the size of population?
1) Death 2) Birth 3) Emigration 4) Immigration
Identify the four processes that determine population growth: immigration, birth, emigration, and death, and explain the impact of each on population size. (14.3)?
Immigration and birth increase the population size as they are bringing more individuals into the population. While death and emigration decrease the population because death kills off individuals while emigration is a process in which individuals leave/exit the population.
Identify the four processes that determine population growth:?
immigration, birth, emigration, and death, and explain the impact of each on population size. (14.3) Immigration and birth increase the population size as they are bringing more individuals into the population. While death and emigration decrease the population because death kills off individuals while emigration is a process in which individuals leave/exit the population.
How can populations change?
Populations can change through birth (increasing population), death (decreasing population), immigration (increasing population), and emigration (decreasing population). Changes in these factors can result in population growth or decline over time.
How can populations change in size?
Populations can change in size due to factors such as birth rates, death rates, immigration, and emigration. If the birth rate is higher than the death rate and there is more immigration than emigration, the population will increase. Conversely, if the death rate is higher than the birth rate and there is more emigration than immigration, the population will decrease.
What are the four processes that determine population growth?
The four processes that determine population growth are birth rate, death rate, immigration, and emigration. Birth rate and immigration increase population size, while death rate and emigration decrease population size. These processes collectively determine whether a population grows, shrinks, or remains stable over time.
What does population influence?
Hey... Um-mm the answer is the two factor that affect population size is emigration and immigration. The diff of emigration and immigration is that emigration is when you leave some way for an ex Mexico, When Mexican leave there country they are emigrating. And when they come in to the US They are immigrate. :)
What situation in which the birth rate plus immigration equals the death rate plus emigration is called?
zero population growth
How will a population change over time?
A population can change over time due to factors like birth rate, death rate, immigration, and emigration. High birth rates can lead to population growth, while high death rates can lead to a decline. Immigration can increase the population, while emigration can decrease it. Environmental factors, public health policies, and socio-economic conditions can also impact population changes.
