In the following equation of Verhulst - Pearl logistic growth, the letter '$r$' denotes________
$\frac{dN}{dt} =rN(\frac{K-N}{K})$
- Carrying capacity
- Population density
- Extrinsic rate of natural increases
- Intrinsic rate of natural increases
The Correct Option is D
Solution and Explanation
$\frac{d N}{d t}=r N\left(\frac{K-N}{K}\right)$
where $N =$ population density at time $t$
$K =$ the maximum number of organisms that can be supported by a habitat without environmental degradation is called carrying capacity
$r =$ the number of birth rates minus the number of death rates in a population is called the intrinsic rate of natural increase.
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Concepts Used:
Population Ecology
Population ecology is the study of these and other questions about what factors affect population and how and why a population changes over time. Population ecology has its deepest historic roots, and its richest development, in the study of population growth, regulation, and dynamics, or demography. Human population growth serves as an important model for population ecologists, and is one of the most important environmental issues of the twenty-first century. But all populations, from disease organisms to wild-harvested fish stocks and forest trees to the species in a successional series to laboratory fruit files and paramecia, have been the subject of basic and applied population biology.