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प्रश्न
Describe Population Age Distribution.
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उत्तर
The proportion of the age groups (pre-reproductive, reproductive and post reproductive) in a population is its age distribution attribute. This determines the reproductive status of the population at the given time and is an indicator of the future population size. Usually a rapidly growing population will have larger proportion of young individuals. A stable population will have an even distribution of various age classes. A declining population tends to have a larger proportion of older individuals.
Age distribution pyramids
संबंधित प्रश्न
For ecological analysis, which functional age group includes individuals aged 0–14 years?
Which age range is identified as the post-reproductive functional age group?
Which geometric shape characterises an expanding age pyramid?
Pre-reproductive and reproductive age groups being nearly equal in size is characteristic of a:
In which population growth status does the growth rate stabilise while the post-reproductive group remains the smallest?
Which countries are examples of a declining age pyramid?
A few large predatory animals versus millions of termites illustrates the use of:
Which method is used for comparative ecological investigations without finding the absolute number?
The number of fish or insects caught per trap is a measure of:
Which method is used for elusive, nocturnal, or dangerous animals when exact counting is not possible?
