Population growth rates of various key species are important to understand, as large growth rates of any one species can easily affect the natural resources within an ecosystem
Assume that a population of 200 exotic parrots (all of the same species) accidentally escaped from a Miami zoo during a recent hurricane. After intense efforts, 215 are recaptured one year later. Calculate the population growth rate of this parrot species, and based on this growth rate, explain how long it would have taken for this population to double in size, if they had not been recaptured.
× 100 = population growth rate
× 100 = 7.5% growth rate
70 ÷ growth rate = doubling time in years
70 ÷ 7.5 = 9.3 years in order for population to double
You might also like to view...
A rate of natural increase of 2.0 percent results in a doubling time of how many years?
A. 140 B. 70 C. 24 D. 35
Desalinization could be a method used by which country?
A. Bahrain B. The Congo C. Desalination could be used by any country on the ocean. D. The United States E. Mexico
The oldest known fossil bat is from rocks of ________ age. Fill in the blank(s) with the appropriate word(s)
Chicago, Illinois (latitude 42°N) is located in the
a. ?northeast trades. b. ?southeast trades. c. ?westerlies. d. ?doldrums. e. ?jet stream.