blog 11

Describe 3 abiotic factors that could affect biotic potential (population growth) and how they would affect it

Some of the abiotics factors that are affecting the population are Age distribution, Natural calamities and population fluctuations and cycles.

Age Distribution

The relative abundance of the organisms of various age groups in the population is called age distribution of population.

With regard to age distribution, there are three kinds of populations.

i) Rapidly growing population is a population, which has high birth rate and low death rate, so there are more number of young individuals in the population.

ii) Stationary population is a population, which has equal birth and death rates, so population shows zero population growth.

iii) Declining population is a population, which has higher death rate than birth rate, so the population has more numbers of older individuals.

Age Structure of Hypothetical Populations which are expected to increase, remain stable or decline with the passage of time.

Natural Calamities

A drastic change in the environment destabilizes or even exterminates a population. Natural calamities such as earthquake, volcanic eruptions etc. cause drastic changes in the environment leading to the destruction of the resources.

population fluctuations and cycles

Populations are not stable and always exhibit up and down variations in response to changes in environmental or intrinsic factors.

The irregular variations in size of populations are called fluctuations or it is also called as population cycle.