Dear Colleagues,
I'd like to call your attention to the following announcement of an NRC
post-doctoral research opportunity.  If interested, please access the
following NRC web pages for details on this particular opportunity and
specifically how to initiate the application process.  We anticipate
filling this position later this fall. The deadline for the next round
of reviews is August 15.
If I can further clarify or address issues related to this announcement,
please contact me at the email address above.
Sincerely,
Jason Link

http://www4.nationalacademies.org/osep/rap.nsf


http://www4.nas.edu/osep/rap.nsf/vwLabInformation/18D986B935A0B277852567B000519D39?OpenDocument

http://www4.nas.edu/osep/rap.nsf/ByTitle/26.38.01.B4263?OpenDocument

Interaction Strengths among Species of the Northwest Atlantic Food Web

                  RO#:                CITY:             STATE:
                  26.38.01.B4263      Woods Hole        MA 02543

                  Adviser Information:
                  Link, Jason
                  (508) 495-2340
                  [log in to unmask]

Keywords:
Predator/prey; Interactions; Northwest Atlantic; Community; Food webs;
Fisheries; Trophodynamic; Ecology


Research on the Northwest Atlantic food web has indicated that species
interaction strengths should be of limited magnitude because of
theoretical constraints for system-wide stability, multiple and abundant
alternate-prey, the generalist and omnivorous nature of most predators
in this ecosystem, the openness and higher energy content of marine
systems, and limited spatial-temporal overlap between predators and
prey. As we continue to examine the causal mechanisms for historic
changes in this fish community, it is clear that the multivariate
response of this fish community to sustained over-exploitation is
directly related to intra- and inter-specific interactions. Multispecies
simulations also merit an understanding of the key interactions
impacting these fish populations.
Thus, a major goal is to elucidate the most important species
interactions that determine community composition and dynamics. This
opportunity focuses on assessing relative interaction strengths (e.g.,
population flux rates, consumption rates, mortality rates, interaction
coefficients, the community matrix) of the species of this ecosystem,
determining the strongest species pairings from the >2000 possible, and
estimating the more important interactions. In addition to access to
over a 25-year data base of food habits for over 120 species (>250,000
stomachs), opportunities exist for specified field and laboratory
studies.

Reference: Fogarty MJ, Murawski SA: Ecological Applications 8(1): S6,
1998

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