When does the growth rate of a population following the logistic model equal zero? The logistic model is given as $dN/dt = rN(1-N/K)$
when $N/K$ equals zero
when death rate is greater than birth rate
when $N/K$ is exactly one
when $N $ nears the carrying capacity of the habitat.
Which of the following is correct
$I.$ In a population, birth rate and death rate refer to per capita births and death respectively
$II.$ In nature, we rarely find isolated single individuals of any species
$III.$ The size of population for any species is stable phenomena
$IV.$ Ecological effects of any factors on a population growth are generally reflected in its size/population density
Change in population size equation with prolonged exponential phase can be converted into logistic growth equation by multiplying it with
The following graph depicts changes in two populations $(A$ and $B)$ of herbivores in a grassy field. $A$ possible reason for these changes is that
Study the figure and identify $A$ and $B$
Rapid decline in a population due to high mortality rate is