Documents — Presentations

Bill Fraser, Polar Oceans Research Group, Oregon State University, NSF Palmer Station, Antarctica LTER Site The Western Antarctic Peninsula is among the most rapidly warming regions on Earth. Mid-winter temperatures have increased, on average, by more than six degrees Celsius (10.8ºF) over the last six decades, resulting in melting of sea ice and changes in... Read more »

Merryl Alber, University of Georgia, NSF Georgia Coastal Ecosystems LTER Site Intertidal marshes—lands between the tides—are ever-changing ecosystems. They’ve kept pace with changes in sea level over millennia, but today’s rate of sea-level rise and increasingly common droughts and storms pose new challenges. An influx of saltwater, for example, has the potential to change how... Read more »

Susanne Menden-Deuer, University of Rhode Island, NSF Northeast U.S. Shelf LTER Site The Northeast U.S. Shelf generates millions of dollars in revenue from fishing, energy development and shipping. It’s also used for waste disposal, recreation and conservation—and almost 30 percent of the U.S. population lives along its shores. Researchers at the NSF Northeast U.S. Shelf... Read more »

Kyle Cavanaugh, University of California-Los Angeles, NSF Santa  Barbara Coastal LTER Site Giant kelp is an example of a foundation species—one that physically modifies its environment and provides food and habitat for an entire ecological community. In contrast to long-lived foundation species such as forests, coral reefs and mangroves, giant kelp has a short life... Read more »

Evelyn Gaiser,  Florida International University, Florida Coastal Everglades LTER Site Ecosystem health—like human health—is the result of a combination of chronic and short-term stresses. When will these stresses result in a stronger system, and when will they launch a downward spiral? Researchers at the NSF Florida Coastal Everglades LTER Site combine field work, large-scale experiments,... Read more »

Coral reefs are a hub of marine biodiversity. They provide food, recreation and shoreline protection to some 1 billion people. But reefs around the globe have seen 50 to 90 percent declines in coral abundance, and forecasts of reef health have been dire. Long-term research by scientists at the NSF Mo’orea Coral Reef LTER Site... Read more »

Presented by Corinna Gries, Director of the Environmental Data Initiative to the LTER Executive Board, May 2018

Presented by Frank Davis and Marty Downs, Executive Director and Deputy Director, LTER Network Communications Office to the LTER Executive Board, May 2018

Presented by Kari O'Connell Education/Outreach Committee Representative to the LTER Executive Board, May 2018

Presented by Wade Sheldon, Information Management Committee Representative to the LTER Executive Board, May 2018

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

For the 2018 LTER Science Council Meeting in Madison, Wisconsin, each site gave a 5 minutes overview of site news and a few results focusing on organic matter trends, processing, or transport. The process offered food for thought as science council participants broke into working groups to develop approaches to synthesizing organic matter findings.

How does shrinking sea-ice affect ecosystems along the Western Antarctic Peninsula?

Scott Doney (Woods Hole Oceanographic Institution), Hugh Ducklow Columbia University

& Palmer Station Antarctica LTER Team (http://pal.lter.edu)

Presnted at the 2017 NSF-LTER symposium, March 21, 2107

Coastal wetlands respond differently to increasing salinity. Why?

Kelp forests as sentinels of ecosystem change? 2014-2015 heatwaves offer a test.

Dan Reed, Libe Washburn, Andrew Rassweiler, Robert Miller, Tom Bell and Shannon Harrer

Santa Barbara Coastal LTER, Marine Science Institute, University of California Santa Barbara

Poster presented at NSF-LTER Symposium, March 21, 2017

Occurrence and Potential Biological Effects of Amphetamine on Stream Communities

Sylvia Lee, Alexis Borbon, Daniel Snow, Emma Rosi , John Kelly, and Erinn Richmond

Poster presented at NSF-LTER Symposium, March 21, 2017

Documenting, Describing, and Mapping Environmental Changes Influencing Human Travel and Access in Boreal Alaska

Todd J. Brinkman, Helen Cold, Teresa Hollingsworth, Caroline Brown, Dana Brown, Dave Verbyla, Terry Chapin

Poster presented at the NSF-LTER symposium, March 21, 2017

LTER Network poster presented at the NSF symposium, March 21, 2017

Scenarios can help communities think about alternative futures, but using them to drive decisions requires dat

Air pollution control efforts have succeeded in reducing sulfur dioxide and nitrogen oxide emissions, but decades of acid rain have leached calcium and magnesium from Northeastern forest soils. These changes have increased the mobility of dissolved organic matter, and possibly altered soil organic matter dynamics, altering the long-term trajectory for forest ecosystems. What does the acid rain story say about when, where, and how recovery is possible?

About 30% of global carbon stocks reside in the vegetation and deep, carbon-rich soils of Arctic tundra and boreal forest biomes. Wildfires—which are becoming more frequent with warmer and drier weather in the Arctic—have the potential to either stabilize or accelerate regional and global warming through carbon feedbacks.

One of the classic state-change stories is that over-grazing and drought turn grasslands into shrubby, degraded landscapes. Land managers strive to avoid such irreversible changes, using strategies based on models of how ecosystems change. But misapplication of models can lead to poor management outcomes. Researchers at the Jornada Basin LTER site and its host the USDA Jornada Experimental Range have developed a new model of desert grassland ecosystem dynamics that is grounded in long-term data and experiments indicating possible trajectories.

Introduction to the 2017 LTER Symposium at NSF, but Executive Board Chair Peter Groffman.

Coastal habitats are the first line of defense against sea-level rise and storms. At the same time, they are vulnerable to change, and can be pushed past tipping points and lost. A long-term, landscape-scale experiment with seagrass at Virginia Coast Reserve LTER is the first of its kind to show the role of restoration in reinstating ecosystem services, particularly ‘blue carbon’ sequestration.

Slides from an overview presentation by Matthew B. Jones about the LTER Network Communications Office, DataONE, and the Environmental Data Initiative, presented at the 2016 annual meeting of the Organization of Biological Field Stations (OBFS) at the Sitka Sound Science Center.