Award Abstract #9981926
Theory for Community Dynamics in Spatially and Temporally Variable Environments
![](common/images/greenline.jpg)
NSF Org: |
DEB
Division of Environmental Biology
|
![divider line](common/images/x.gif) |
![divider line](common/images/x.gif) |
Initial Amendment Date: |
June 3, 2000 |
![divider line](common/images/x.gif) |
Latest Amendment Date: |
June 3, 2000 |
![divider line](common/images/x.gif) |
Award Number: |
9981926 |
![divider line](common/images/x.gif) |
Award Instrument: |
Standard Grant |
![divider line](common/images/x.gif) |
Program Manager: |
Susan J. Mazer
DEB Division of Environmental Biology
BIO Directorate for Biological Sciences
|
![divider line](common/images/x.gif) |
Start Date: |
May 15, 2000 |
![divider line](common/images/x.gif) |
Expires: |
April 30, 2004 (Estimated) |
![divider line](common/images/x.gif) |
Awarded Amount to Date: |
$170000 |
![divider line](common/images/x.gif) |
Investigator(s): |
Peter Chesson pchesson@u.arizona.edu (Principal Investigator)
|
![divider line](common/images/x.gif) |
Sponsor: |
University of California-Davis
OR/Sponsored Programs
Davis, CA 95618 530/747-3838
|
![divider line](common/images/x.gif) |
NSF Program(s): |
COMPUTATIONAL MATHEMATICS, STATISTICS, APPLIED MATHEMATICS, PROBABILITY, ECOLOGY
|
![divider line](common/images/x.gif) |
Field Application(s): |
0510301 Structure & Function
|
![divider line](common/images/x.gif) |
Program Reference Code(s): |
EGCH,9169
|
![divider line](common/images/x.gif) |
Program Element Code(s): |
1271,1269,1266,1263,1182
|
ABSTRACT
![](common/images/bluefade.jpg)
Peter Chesson
DEB-9981926
Mathematical models of species competing in space and time will be
studied using a combination of analytical, simulation, and numerical
methods. Three specific sorts of natural community will form foci of
this work: annual plants with persistence seed banks (especially those
found in arid environments), perennial herbs that spread spatially by
vegetative means, and long-lived perennial organisms that do not have
vegetative spread but have multiple reproductive events in the life of
an individual (iteroparity). The research will examine how life-history
traits, such as those defining these different communities, interact
with environmental variation in space and time and affect coexistence of
species and therefore affect maintenance of species diversity. In
addition to the features distinguishing the above systems, important
factors are expected to be mode of dispersal of offspring, distance of
dispersal, and spatial and temporal scales of competition between
individual organisms. This work will extend to the spatial domain
previous findings on the role of temporal environmental variation and
its interactions with life-history traits on the maintenance of species
diversity.
Please report errors in award information by writing to: awardsearch@nsf.gov.
|