In an open population, the population growth rate can be estimated using the equation ∆N = B - D only if
A) the population is stable.
B) the population is growing.
C) the population is declining.
D) immigration equals emigration.
E) neither immigration nor emigration is occurring.

Question

Quizplus · Accepted Answer

The equation ∆N = B - D (where ∆N is the change in population size, B is the number of births, and D is the number of deaths) assumes that the only factors influencing population size are births and deaths. This assumption holds true if immigration equals emigration, as the net effect of individuals moving in and out of the population is zero, leaving births and deaths as the sole factors affecting population growth.

In an Open Population, the Population Growth Rate Can Be