Interpreting population pyramids
A broad-based pyramid indicates that people in the younger age categories make up a relatively large proportion of the population, and a narrow or pointed top indicates that older people make up a relatively small proportion of the population .
What does a population pyramid that is wide at the top and narrow at the bottom represent?
Interpreting population pyramids
A broad-based pyramid indicates that people in the younger age categories make up a relatively large proportion of the population, and a narrow or pointed top indicates that older people make up a relatively small proportion of the population .
What does it indicate if the base of the population pyramid is very broad wide and the apex is very narrow?
Narrow base shows low birth rate as small numbers of children are born. Therefore, narrowing base indicates a falling birth rate. A broad top or wide apex indicates high proportion of people living longer . ... Rapidly tapering top or concave slope suggests high death rate and low life expectancy.
What does a wide base of a population pyramid mean?
A wide base means there are lots of young people, and suggests a high birth rate . A narrow base means a smaller proportion of young people, suggesting a low birth rate. A wide middle, tall pyramid means an ageing population, suggesting that there is a long life expectancy .
When a country’s population pyramid has a wider base that means it’s population growth rate is?
If the pyramid has a broad base, this indicates that a relatively high proportion of the population lies in the youngest age band , such as ages 0–14, which suggests that the fertility rate of the country is high and above population sub-replacement fertility level.
What are the 5 stages of population pyramid?
The five stages of population pyramids are high fluctuating, early expanding, late expanding, low fluctuating, and natural decrease .
What does a wide base in a population pyramid suggest quizlet?
A population pyramid that is very wide at the base, indicating high birth and death rates . A population pyramid that comes in at the bottom. The population is generally older on average, as the country has long life expectancy, a low death rate, but also a low birth rate.
What are the three types of population?
Typically, there are three trends in population pyramids: expansive, constrictive, and stationary . These illustrate the trajectory of a regional population, which may be growing, shrinking, or staying the same.
What type of population would be associated with a population pyramid that has an extremely broad base?
Young populations have a typical ‘pyramid’ shape, with a broad base indicating high proportions of children. Indicates a population undergoing rapid growth.
Which population pyramid is best for a country?
No pyramid as such can be deemed as the best one. Population pyramids are broader towards the base and tapering towards the top where the birth and death rates are high. Such a pyramid must be narrow at the base too, as this will enable them to sustain its population.
Which population pyramid do you think is the best for a country give reasons?
As such, no population pyramid can be considered best . In a country where both birth and death rates are high, the population pyramids are broader at the base and narrower towards the top. This is the case in countries like Kenya.
What does a Stage 3 population pyramid look like?
Stage 3 is marked by continuing , but slower, decline in death rates coupled with a significant decline in birth rates . The result is continued growth in the population but at a much slower rate.
What is the major difference between the population pyramid of a developed and developing country?
Population profiles in developed countries tend to look more like population columns than pyramids , whereas the profiles of developing countries tend to look more like pyramids. In developing countries, having larger families may be more of a guarantee of support or care in later life.
What are the 4 types of population pyramids?
And while every population pyramid is unique, most can be categorized into three prototypical shapes: expansive (young and growing), constrictive (elderly and shrinking) , and stationary (little or no population growth).
How does one calculate the natural increase of a population?
The rate of natural increase refers to the difference between the number of live births and the number of deaths occurring in a year, divided by the mid-year population of that year, multiplied by a factor (usually 1,000). It is equal to the difference between the crude birth rate and the crude death rate.
