MDT2_sample1

MDT2_sample1 - NAME_ BIOLOGY 116: CONSERVATION BIOLOGY-EXAM...

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NAME______________________ BIOLOGY 116: CONSERVATION  BIOLOGY------ EXAM 2  (100 Point total) 1.  What is effective population  size (N e )? What are  two  common  reasons why  it  is not simply  the number  of breeding  adults in a population? Why is it an  important  parameter  to measure  for genetic conservation? (6  POINTS).  2. a) Fish and  Wildlife biologists would  like to remove all remaining  California  condors from the wild  so that captive breeding  could  be used  to increase their  population  size. Opponents  argue  that some condors should  be left in the wild  in  the hope they may recover naturally. Suppose that 20 adult condors are known   to remain  in the wild  and  opponents  argue  only half should  be removed.   Assume  sex ratios are equal and  that all individuals  breed  equivalently, show  the  difference in the loss of heterozygosity that would  occur in captivity after three  generations if half the population  is used   (n e =10) rather than  the entire  population  (n e =20).  (i.e. the ratio of initial to final heterozygosity in both cases) b) You have convinced  your  opponents  that 20 animals of equal sex ratio is better  than  10 with  regard  to loss of genetic variability. However, your opponents   propose that if reproductive rates are high much  less variation  will be lost.  Consequently, to maximize reproductive rate and  keep some condors in the 
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This note was uploaded on 03/05/2008 for the course EE BIOL 116 taught by Professor Rundel during the Winter '08 term at UCLA.

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MDT2_sample1 - NAME_ BIOLOGY 116: CONSERVATION BIOLOGY-EXAM...

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