Question:
In the following equation of Verhulst - Pearl logistic growth, the letter '$r$' denotes________
$\frac{dN}{dt} =rN(\frac{K-N}{K})$
In the following equation of Verhulst - Pearl logistic growth, the letter '$r$' denotes________
$\frac{dN}{dt} =rN(\frac{K-N}{K})$
Updated On: Apr 17, 2024
- Carrying capacity
- Population density
- Extrinsic rate of natural increases
- Intrinsic rate of natural increases
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Verhulst-Pearl logistic growth is expressed by:
$\frac{d N}{d t}=r N\left(\frac{K-N}{K}\right)$
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.
$\frac{d N}{d t}=r N\left(\frac{K-N}{K}\right)$
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.
Was this answer helpful?
0
0
Top KCET Biology Questions
- Relate Column I with Column II with regard to predatory behaviour:
Column I Column II 1. Calotropis p. Invertebrates 2. Pisaster q. Distasteful 3. Monarch butterfly r. Cryptically colored 4. Frogs s. Cardioglycoside - Small mammals and birds are rarely found in polar regions. The reason is that
Match Column I and Column I
Column I Column II 1 Narrowly utilitarian argument p Conserving biodiversity for major ecosystem services 2 Broadly utilitarian argument q Every species has an intrinsic value and moral duty to pass our biological legacy in good order to future generation. 3 Ethical argument r Receiving benefits like food, medicine & industrial products. - Identify the correct statement/s about ex situ conservation. Advanced ex situ conservation includes i. Cryopreservation of gametes. ii. Plant tissue culture method. iii. Seed bank. iv. In vitro fertilisation.
- Identify the odd one out.
View More Questions
Top KCET Population ecology Questions
- Population size keeps changing depending on different factor/s such as
- The term ecology was coined by $\ldots\ldots\ldots$
- The annual net primary productivity of the biosphere is approximately
- In the following equation of Verhulst - Pearl logistic growth, the letter 'r denotes _______
$\frac{dN}{dt}=rN(\frac{K-N}{K})$ - Which one of the following population attributes, contributes to increase in population density?
View More Questions
Top KCET Questions
- Which of the following is not true for oxidation?
- If $a, b$ and $c \in N$ which one of the following is not true ?
- When $50\, cm ^{3}$ of $0.2\, N$ $H_{2} SO _{4}$ is mixed with $50 cm ^{3}$ of $1 N\, KOH$, the heat liberated is :
- If $a | (b + c)$ and $a| (b-c)$ where $a,b,c \in \, N $ then
- Which of the following is NOT a pair of functional isomers?
View More Questions
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.