Toni Lyn Morelli is a Research Ecologist with the US Geological Survey, based at the Northeast Climate Adaptation Science Center. She earned her B.S. in Zoology at Michigan State University and her Ph.D. in Ecology & Evolution at Stony Brook University. She has been studying the impacts of global change in the U.S. and Africa for over 20 years.
Jill S Baron, PhD
Dr. Jill Baron is a senior scientist with the U.S. Geological Survey, and a Senior Research Ecologist with the Natural Resource Ecology Laboratory at Colorado State University.
Jill Baron is founder and Co-Director of the John Wesley Powell Center for Earth System Science Analysis and Synthesis. She was the North American Director of the International Nitrogen Initiative 2014-2019 and is Co-Lead for Component 1 (Tools and methods for understanding the nitrogen cycle) of the International Nitrogen Management System. Baron was President of the Ecological Society of America in 2014, is a Certified Professional Ecologist, and a Fellow of the ESA and the American Association for the Advancement of Science (AAAS).
She was named a Woman of Vision in 2015 by Colorado Women of Influence for her work advancing women’s role in science. Baron has been active in US National Climate Assessment efforts, has given testimony to Congress on western acid rain and climate change issues, and serves on a National Academy of Science, Engineering and Medicine Committee on Assessing Causality from a Multidisciplinary Evidence Base for National Ambient Air Quality Standards. She is founder and Principal Investigator of the Loch Vale Watershed long-term ecological monitoring and research program in Rocky Mountain National Park, an instrumented catchment that in 2022 will celebrate 40 years of continuous records.
Professional Experience
2009-present Co-Director, John Wesley Powell Center for Earth System Science Analysis and Synthesis
2016-present Senior Scientist, U.S. Geological Survey, Fort Collins CO
1996-2015 Research Ecologist; U.S. Geological Survey, Fort Collins, CO
1986-present Senior Research Scientist; Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO
2000-present Advising faculty, CSU Graduate Degree Program in Ecology
1993-1996 Research Ecologist; National Biological Service, Mountain Ecosystems Section, Fort Collins, CO
1976-1993 Research Biologist-National Park Service; Great Smoky Mountains National Park TN; Gulf Islands National Seashore MS; Water Resources Division, Washington D.C. and CO
Education and Certifications
Ph.D. Ecosystem Ecology, Colorado State University, 1991
M.S. Land Resources, University of Wisconsin - Madison, 1979
B.S. Plant Sciences, Cornell University, 1976
Affiliations and Memberships*
Present: Natural Resource Ecology Laboratory, Colorado State University, Senior Scientist
Present: Graduate Degree Program in Ecology, Colorado State University, Advising Faculty
Present: Department of Ecosystem Science and Sustainability, Colorado State University, Faculty Affiliate
Science and Products
Interpreting Global Change Impacts on Southern Rocky Mountain Alpine and Subalpine Ecosystems for Effective Resource Management
Ecological Forecasting Workshop
Accelerating changes and transformations in western mountain lakes
The Western Mountain Initiative (WMI)
Western Mountain Initiative: Central Rocky Mountains
Western Mountain Initiative: Colorado
Paleoecological data from sediment collected in 2020 from Santa Fe Lake, New Mexico
Soil and surface water nitrogen and caffeine data from 2019, and 2019-2020 trail counts of hikers in Loch Vale Watershed, Rocky Mountain National Park
Field measurements, laboratory, and field experimental data for Sky Pond, Rocky Mountain National Park Colorado, nutrient and warming study, 2015-2017
Water chemistry and land cover attributes for The Loch and Sky Pond, Rocky Mountain National Park
Paleoecological data from The Loch and Sky Pond, Rocky Mountain National Park
Laboratory Incubation results from 2015 for bacterial cell counts, carbon use efficiency, growth efficiency, and dissolved organic matter chemistry from four glacier outflows and four rock glacier outflows in Colorado
Toni Lyn Morelli is a Research Ecologist with the US Geological Survey, based at the Northeast Climate Adaptation Science Center. She earned her B.S. in Zoology at Michigan State University and her Ph.D. in Ecology & Evolution at Stony Brook University. She has been studying the impacts of global change in the U.S. and Africa for over 20 years.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Climatic variability as a principal driver of primary production in the southernmost subalpine Rocky Mountain lake
Proximity to roads does not modify inorganic nitrogen deposition in a topographically complex, high traffic, subalpine forest
Warming-induced changes in benthic redox as a potential driver of increasing benthic algal blooms in high-elevation lakes
John Wesley Powell Center for Analysis and Synthesis Newsletter, volume 7, issue 1
Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination
Quality assurance report for Loch Vale Watershed, 2010–19
Identifying factors that affect mountain lake sensitivity to atmospheric nitrogen deposition across multiple scales
Persistent nitrate in alpine waters with changing atmospheric deposition and warming trends
Maintaining momentum for collaborative working groups in a post-pandemic world
Blue waters, green bottoms: Benthic filamentous algal blooms are an emerging threat to clear lakes worldwide
A more representative community of ecologists
Long-term ecosystem and biogeochemical research in Loch Vale watershed, Rocky Mountain National Park, Colorado
Science and Products
Interpreting Global Change Impacts on Southern Rocky Mountain Alpine and Subalpine Ecosystems for Effective Resource Management
Ecological Forecasting Workshop
Accelerating changes and transformations in western mountain lakes
The Western Mountain Initiative (WMI)
Western Mountain Initiative: Central Rocky Mountains
Western Mountain Initiative: Colorado
Paleoecological data from sediment collected in 2020 from Santa Fe Lake, New Mexico
Soil and surface water nitrogen and caffeine data from 2019, and 2019-2020 trail counts of hikers in Loch Vale Watershed, Rocky Mountain National Park
Field measurements, laboratory, and field experimental data for Sky Pond, Rocky Mountain National Park Colorado, nutrient and warming study, 2015-2017
Water chemistry and land cover attributes for The Loch and Sky Pond, Rocky Mountain National Park
Paleoecological data from The Loch and Sky Pond, Rocky Mountain National Park
Laboratory Incubation results from 2015 for bacterial cell counts, carbon use efficiency, growth efficiency, and dissolved organic matter chemistry from four glacier outflows and four rock glacier outflows in Colorado
Toni Lyn Morelli is a Research Ecologist with the US Geological Survey, based at the Northeast Climate Adaptation Science Center. She earned her B.S. in Zoology at Michigan State University and her Ph.D. in Ecology & Evolution at Stony Brook University. She has been studying the impacts of global change in the U.S. and Africa for over 20 years.
Toni Lyn Morelli is a Research Ecologist with the US Geological Survey, based at the Northeast Climate Adaptation Science Center. She earned her B.S. in Zoology at Michigan State University and her Ph.D. in Ecology & Evolution at Stony Brook University. She has been studying the impacts of global change in the U.S. and Africa for over 20 years.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Loch Vale Watershed in the Rocky Mountain National Park, Colorado.
Climatic variability as a principal driver of primary production in the southernmost subalpine Rocky Mountain lake
Proximity to roads does not modify inorganic nitrogen deposition in a topographically complex, high traffic, subalpine forest
Warming-induced changes in benthic redox as a potential driver of increasing benthic algal blooms in high-elevation lakes
John Wesley Powell Center for Analysis and Synthesis Newsletter, volume 7, issue 1
Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination
Quality assurance report for Loch Vale Watershed, 2010–19
Identifying factors that affect mountain lake sensitivity to atmospheric nitrogen deposition across multiple scales
Persistent nitrate in alpine waters with changing atmospheric deposition and warming trends
Maintaining momentum for collaborative working groups in a post-pandemic world
Blue waters, green bottoms: Benthic filamentous algal blooms are an emerging threat to clear lakes worldwide
A more representative community of ecologists
Long-term ecosystem and biogeochemical research in Loch Vale watershed, Rocky Mountain National Park, Colorado
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government