PostDoc Available

andy at andy at
Wed Oct 27 17:40:24 EST 1993

              Southwest Fisheries Science Center
                     Marine Mammal Division

     A one-year National Research Council Associateship
(renewable to three years) is available in the Marine Mammal
Molecular Genetics Laboratory of the Southwest Fishery Science
Center located in La Jolla, California.  Ph.D. with experience
and/or interest in population genetics or modelling is sought to
formulate quantitative means for using genetic data to define
biologically meaningful stock units on which to base conservation
and management efforts for marine mammals.  Stocks, not species,
are the units on which conservation and management efforts, by
law, must be focussed, yet how to do this remains one of the most
important questions in conservation biology today.   

     In spite of rapid progress in the molecular arena,
development of quantitative means for using the information
gained in the laboratory to define biologically meaningful stock
units has not been fully realized.  Methodologies using molecular
data to estimate population-genetic parameters, molecular
phylogenies, gene flow and dispersal distance, etc., are
available, but there has been growing realization that this area
is much more complex and pitfall-ridden than had been thought,
especially when the methods are applied to incompletely isolated
populations.  Nevertheless, the continuing rapid advances in
molecular methods, the reality of laboratory automation, and the
ability to measure genetic diversity directly from pooled samples
will provide data of heretofore unavailable breadth and scope.  A
concentrated research effort focusing directly on how to use
these data to define stock units in potentially politically
controversial situations is needed.

     Envisioned, for example, is the development of an
individual-based model of evolving and interchanging local
populations, which could be stochastically sampled in order to
test the utility of various analyses of population genetic
structure for defining management stocks.  Such a model would
also serve as a means of designing practical sampling programs
for such purposes and, in the course of which, measures of the
statistical power of the quantitative indices should be

     NRC Associates receive a stipend from the National Research
Council while carrying out his or her proposed research.  The
current annual stipend for a Regular Associate (< 5yr from PhD)
is $30,000 per year.  Suitable relocation reimbursement will be
determined for an awardee, and funds are available for
professional travel during tenure.  Applicants should direct
initial inquires to Dr. Andrew Dizon (andy at or Dr.
William Perrin, PO Box 271, SWFSC, La Jolla, CA, 92038.  


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