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5 May, 05:12

On a small island in Maine, the population of white tailed deer, Odocoileus virginanus, was estimated to be 320 in 2009. During that year, 100 kills were reported by hunters at tagging stations and researchers estimate 25 births on the island. The proximity to the mainland has allowed for 11 immigrants during an early spring bloom. What is the rate of change in population size?

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  1. 5 May, 05:50
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    Answer: - 20%

    Explanation:

    Given the following;

    Initial population = 320

    Deaths = 100

    Births = 25

    Immigrants = 11

    With the information above:

    New population equals;

    Initial population - (deaths - birth + immigrants)

    New population:

    320 - (100 - 25 - 11)

    320 - (64) = 256

    Rate of change in population size is given by:

    [ (new population - initial population) : initial population] * 100

    [ (256 - 320) : 320] * 100

    [ - 64 : 320] * 100

    -0.2 * 100 = - 20

    Tge rate of change in population size is - 20%
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