Predictions of future population size often assume population structures are stable. Are we missing the boat if we ignore the occurrence of unstable or transient dynamics? Agricultural crops are ...

Compared to a developing population structure, more people are living to older age categories. The population pyramid shows a low birth rate and high life expectancy. This pyramid shows an ageing ...

population size, density, age structure, fecundity (birth rates), mortality (death rates), and sex ratio (Dodge 2006). We introduce each of these in turn. Populations display distinctive behaviors ...

This means there is a high birth rate and low life expectancy. This pyramid shows a youthful population. Consequences of a youthful population: Too many young people, puts an added strain on ...