1 small multiple choice question [population dynamics]

Discussion of the distribution and abundance of living organisms and how these properties are affected by interactions between the organisms and their environment

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1 small multiple choice question [population dynamics]

Post by Jeddles » Mon Sep 22, 2014 8:00 am

The International Whaling Commission (IWC) is an international body set up by the terms of the international Convention for Regulation of Whaling (ICRW) which was signed in Washington, D.C., United States, on 2 December 1946 to "provide for the proper conservation of whale stocks and thus make possible the orderly development of the whaling industry".

In 1982 the IWC adopted a moratorium (ban) on commercial whaling.

1.1) once the ban on whaling had been instituted, the populations of whales increased. Which is the best description of the growth in whales?
A) accelerating growth phase
B) decelerating growth phase
C) equilibrium phase
D) lag phase

Please clarify the answer for this, there is conflicting views.

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Post by BasicBiology » Wed Sep 24, 2014 7:47 am

Going off the information you've given: A)

The acceleration phase is the initial increase in population and is often followed by an exponential growth phase (if conditions continue to be favourable), similar to what the human population has been going through.

If a population is small enough, the reproduction rate can be so low that there is a lag phase before any initial increase in population size. I.e. births = deaths for the initial period.
Adam Purcell
Basic Biology


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