Density & Distribution
Limiting Factors
population growth/age structure diagrams
100
The number of individuals in a given area is a population's
Density
100
What causes a population to increase?
Births and Immigration
100
If the population of rabbits in an ecosystem grows at a rate of approximately 4% per year, the number of years required for the rabbit population to double is...?
70/4 = 17.5 years
200
Occurs when there are many Organisms in an area
High Population Density
200
What causes a population to decrease?
Deaths and Emigration
200
If a country has a crude birth rate of 24 per 1,000 and a crude death rate of 8 per 1,000, the natural annual percent increase of its population is:
1.6%
300
What distribution patter is shown?
Uniform
300
Why can exponential growth not continue forever?
Resources will become limited - competition
300
What role does education, particularly for women, play in managing population growth?
Women seeking education tend to have fewer children, delay childbirth, and have better access to healthcare and family planning, leading to slower population growth rates.
400
What distribution pattern is shown?
Random
400
The maximum population size that a given environment can sustain
Carrying Capacity
400
.What does TFR stand for and what does it mean?
Total fertility rate - the average number of children women are having (usually per year)
500
What distribution pattern is shown?
Clumped
500
Name something that separates r-selected and k-selected species
level of parental care
life span
# of offspring
reproductive maturity age
population regulation
size of offspring
500
Why do birth rates typically decline in developed countries?
Birth rates decline due to better access to education, healthcare, and family planning, as well as lifestyle changes.