It is estimated that a flock of wood buffalo crane should be able to sustain an r of 0.085 for the foreseeable future. If the flock currently contains 350 individuals, how long will it take for that population to double?
A) between 7.0 and 9.0 years
B) between 9.0 and 11.0 years
C) between 11.0 and 13.0 years
D) less than 7 years
E) more than 13 years

Question

Quizplus · Accepted Answer

To calculate the time it takes for a population to double using the growth rate (r), you can use the rule of 70, which is an approximation method. The formula is Time = 70 / r(%). In this case, r = 0.085, which is 8.5% when converted to a percentage. Therefore, Time = 70 / 8.5 = 8.24 years, which falls within the range of between 7.0 and 9.0 years.

It Is Estimated That a Flock of Wood Buffalo Crane