Final Report: NCEAS Community Dynamics Working Group Meeting
(23-28 March 1998)
K.L. Cottingham and F. Micheli, 7 April 1998
A subset of the Community Dynamics Working Group reconvened at NCEAS
from March 23 - 28, 1998. We focused on two activities: (1)
finalizing analyses begun during the first three meetings and drafting
the papers that report these analyses and (2) writing a paper presenting
a new conceptual framework for thinking about community variability.
(1) Polishing up ongoing analyses from earlier working group meetings
We finalized the datasets and began work on a more formal method of documenting
our value-added datasets. This included correcting some errors, adding
more data for several lakes at the Dorset Research Centre, and adding 49
more lake-years of data on reference lakes at the Experimental Lakes Area.
We produced outlines for papers by Cottingham et al. and Micheli et al.
based on work THAT presented at last summer’s ESA meeting and expanded
during the November 1997 meeting of our working group. We anticipate
that these papers will be submitted during summer 1998.
We made progress on several of the other papers and projects that are still
in development, including
Rusak et al.: comparisons of variability in total, cladoceran, copepod
and rotifer densities in reference vs. manipulated lakes.
Klug et al.: can you predict summer zooplankton
from spring conditions?
Wootton, Klug, Micheli et al.: Do communities converge to predictable
“states” during the summer stratified season? Is zooplankton community
structure more predictable at the beginning or at the end of the summer
Wootton et al.: fits of a multivariate AR(1) time series model to
data on zooplankton functional groups
Fischer et al.: Does acidification history play a role of in determining
community sensitivity in whole-lake acidification experiments? Are
population responses consistent (occur at same pH)? Or do they vary
Cottingham, Micheli et al.: relationships of community variability
to species richness in zooplankton data
(2) Ad Hoc Working Group on Community Variability
* We also convened a 10-member working group that met at intervals throughout
the week. This “ad hoc” group was composed of working group members
and local NCEAS and UCSB scientists, all of whom are currently postdocs
or grad students. The primary output is a conceptual framework for
how to think about community variability.
* By the last day of the meeting, we had produced a rough draft of a paper
(ideally for Trends in Ecology and Evolution) that describes our conceptual
framework and how it might be applied within ecology. The manuscript
is currently undergoing review by all co-authors, and will be submitted
to TREE on 1 May 1998 after “friendly” review by several NCEAS residents
as well as off-site colleagues.
Participants from Outside NCEAS:
Janet M. Fischer (postdoctoral fellow at Cornell University)
Jennifer L. Klug (graduate student at the University of Wisconsin)
James A. Rusak (graduate student at York University)
J. Timothy Wootton (assistant professor at the University of Chicago)
Ginny L. Eckert (graduate student at UCSB)
Participants from NCEAS:
Kathryn L. Cottingham
Timothy H Keitt
Bruce E. Kendall