95th ESA Annual Meeting (August 1 -- 6, 2010)

OOS 29 - Long-term Research on Ecological Dynamics from Local Through Global Scales: Insights from the NSF LTREB Program

Wednesday, August 4, 2010: 8:00 AM-11:30 AM
401-402, David L Lawrence Convention Center
Michael J. Vanni
S.K. Morgan Ernest and Saran Twombly
Michael J. Vanni
It often takes many years for environmental perturbations to have effects on ecological processes, and for ecosystems to recover from these perturbations. Global warming and its effects on ecological interactions, the theme of the 2010 ESA meeting, is a vivid example: Climate warming is a relatively slow process and its effects on ecosystems are often subtle and complex. Many ecological studies, however, run for only a few years and consequently focus on short-term responses, leaving long-term responses to perturbations unknown and underappreciated. Understanding of the full effects of climate change and other perturbations on ecological systems will require long-term data and careful analyses of such data. We propose an organized oral session featuring research conducted with the support of NSF’s Long-term Research in Environmental Biology (LTREB) program. The LTREB program funds hypothesis-driven, long-term research conducted by individual investigators or small groups of investigators, which addresses ecological and evolutionary processes aimed at resolving important issues in environmental biology. Our session will feature contributions from ecologists conducting research at a variety of ecological scales from populations through ecosystems, and in a variety of ecosystem types including forests, grasslands, deserts and freshwater ecosystems. Presentations include those on planned large-scale, long-term experiments while others investigate the dynamics of natural (or human-perturbed) ecological systems. Each speaker will present original work that synthesizes innovative long-term research, but a common theme is that all of these studies explore ecological hypotheses that can be tested only with long-term data. Several speakers will explicitly address drivers associated with climate change, such as temperature, CO2, precipitation, and hydrology, and their effects on ecological processes. Speakers include a mix of well-established and younger ecologists. Each will present their most recent results, within the context of long-term data sets. This mixture of scientists at different career stages, studying different ecosystems and levels of the ecological hierarchy will create a dynamic session offering a variety of approaches, perspectives, and interpretations on the long-term response of nature to global change.
8:00 AM
Resource pulses or resource crashes? The dynamics of tree seed production, rodent populations, and Lyme disease
Charles D. Canham, Cary Institute of Ecosystem Studies; Richard S. Ostfeld, Cary Institute of Ecosystem Studies
8:20 AM
Range limits of tundra plants in a changing climate
William F. Morris, Duke University; Daniel F. Doak, University of Colorado
8:40 AM
Linking ecological theory with restoration: A ten-year study of plant community dynamics in California vernal pools
Sharon K. Collinge, University of Colorado; Chris Ray, University of Colorado
9:00 AM
Why long-term data is important for understanding community responses to perturbations: A Chihuahuan Desert example
S.K. Morgan Ernest, Utah State University; Thomas J. Valone, Saint Louis University; James H. Brown, University of New Mexico
9:20 AM
Grassland resistance to climate change: an evaluation of processes that limit plant community response in a 17-year climate manipulation
Jason Fridley, Syracuse University; J. Philip Grime, University of Sheffield; Andrew P. Askew, Syracuse University
9:40 AM
9:50 AM
Interannual variability in hydrologic regimes leads to shifts in nutrient limitation and vegetative biomass in a desert stream
Nancy Grimm, Arizona State University; Lin Ye, Arizona State University; Xiaoli L. Dong, Arizona State University
10:10 AM
The most important lesson from five decades of research on the wolves and moose of Isle Royale
John A. Vucetich, Michigan Technological University; Rolf O. Peterson, Michigan Technological University; MP Nelson, Michigan State University
10:30 AM
Air pollution, emissions regulations, and long-term changes in regional forest biogeochemistry
Alan F. Talhelm, University of Idaho; Kurt S. Pregitzer, University of Idaho; Andrew J. Burton, Michigan Technological University; Donald R. Zak, University of Michigan
See more of: Organized Oral Session