For questions on past webinars, please find the speaker’s contact information within the presentation, or feel free to contact Kara Miller (firstname.lastname@example.org), who can help connect you with the webinar speaker. SWS members have full access to all past webinar recordings. To access, please log in as a member.
Certificates of completion, worth one hour of webinar participation, are available upon request; please contact Kara Miller at email@example.com, if interested.
February 2017: Liquid Assets: Building and Sustaining a State-Based Aquatic Ecological Restoration Program
Learn how Massachusetts created the first-in-the-nation, state-based, aquatic, ecological restoration division. With a focus on aquatic ecosystems, DER actively manages over 60 physical restoration projects. Restoration techniques include dam removal, culvert replacement, fill removal, urban river revitalization, water conservation and stream daylighting. Since 2012, DER has leveraged almost $20 million in non-state funds and nearly a $25 million in volunteer assistance. DER and partners have removed 43 dams, providing hundreds of miles of river continuity, and restored over 1,500 acres of coastal wetlands.
This webinar will highlight project successes, including the largest Atlantic white cedar swamp restoration in the Northeast (Eel River, Plymouth, MA) and other complex river and wetland restoration projects.
DER provides a template in how to create, tailor and promote a government-sponsored, ecological restoration program. A description of the tools that have been most effective in attracting and leveraging limited, state funding will also be discussed.
Tim Purinton oversees a nationally award-winning division that coordinates river, wetland and stream flow restoration projects, across the state. Tim was awarded a Governor Bradford Fellowship for Excellence in Public Administration, which allowed him to receive a MPA from Harvard University’s Kennedy School of Government.
January 2017: Restoring the River Flows
River flows have been recognized as the key driver of freshwater biodiversity by many ecologists. However, the understanding of such an important driver by the public, the industry and policy-makers is very limited. This presentation explains the importance of river flows and the key challenges, and shares WWF’s works in maintaining and restoring river flows, where possible, through tactics including: understanding and assessing environmental flows, restoring the river connectivity, managing and re-operating the existing infrastructures, promoting integrated basin planning and mainstreaming environmental flows into national and global policies.
Dr. Li was the Director of WWF Global Freshwater Program from 2008-2016 and led WWF’s works on freshwater conservation in many of the world’s large rivers, including the Amazon, Rio Grande and Rio Conchos, Amur, Yangtze, Mekong, Ganges, Indus, Danube, Balkan rivers and Zambezi. He has been working on water and river basin management in WWF since 2002 and was the leader of WWF’s work on basin management in China and restoration in the Central Yangtze.
December 2016: Life in the Mud: Relevance to Food Security, Climate Change, and Water Quality
Freshwater wetlands, coastal wetlands, benthic sediments of lakes, rivers, streams, marine sediments and paddy soils, all have one thing in common: mud. Many biological communities use mud as their habitat to support their livelihood. These include microbial communities, invertebrates and plant communities. Typically, mud in these ecosystems is present under water and very little or no oxygen is present in the mud to support their respiration. In this presentation, I will present key of roles of little players, i.e., microbial communities playing large roles in regulating various ecosystem processes that may have a direct link to global food security, water quality and climate change. For example, for the role of mud in food security, I will present global examples of how rice production is mediated by biogeochemical processes, regulated by various microbial communities housed in paddy soils. Similarly, I will provide various examples of the importance of mud in various ecosystems, as related to water quality, carbon sequestration and greenhouse gas emissions.
K. Ramesh Reddy is a graduate research professor of biogeochemistry and the chairman of the Soil and Water Sciences department at the University of Florida. He conducts research in the areas of coupled biogeochemical cycling of nutrients, as related to surface water quality, restoration wetlands and aquatic systems, ecological indicators, carbon sequestration and greenhouse gas emissions. Reddy has served on numerous advisory committees at state, national and international levels to assist agencies in developing science-based policy. Reddy has supervised 60 doctoral and master thesis committees and has served on an additional 130 graduate student committees. Publications related to Reddy’s research can be viewed here: http://soils.ifas.ufl.edu/wetlands. His select awards and honors include: the 1988 Fellow Award from the Soil Science Society of America, the 1988 Fellow Award from the American Society of Agronomy; the 2001 Soil Science Applied Research Award from the Soil Science Society of America; the 2002 Environmental Quality Research Award from the American Society of Agronomy; the 2002 Fellow Award from the American Association for the Advancement of Science; the 2012 Lifetime Achievement Award from INTECOL; the 2016 National Wetlands Award for research from the Environmental Law Institute and 2016 SWS Lifetime Achievement Award.
November 2016: Reclaiming, Using and Protecting Wetlands: the Dutch Approach
The Netherlands is the common delta of 3 major rivers. Originally a vast expanse of salt marshes, floodplains, swamps and large bogs, the Dutch started to live there on dwelling mounds 2000 years ago. From the 11th century, farmers and monasteries joined forces to build dikes, culminating in large reclamations funded by merchants and noblemen in the 17th century. Only in the 20th century, wetland protection became an issue, while new wetland areas are being created since 25 years. This story is about the vast original wetland wilderness, the ways the Dutch reshaped it into their minutely controlled country, about major floods and continuous innovations in ways to control or make use of wetlands. It ends with the current status, which includes a movie trailer on the Oostvaardersplassen, a vast wetland wilderness of only 40 years old.
Jos Verhoeven is professor emeritus of landscape ecology at the Department of Biology of Utrecht University, The Netherlands. He is also a Research Associate of the Smithsonian Institution in Washington, USA. He is the President of the Society of Wetland Scientist’s Europe chapter and a member of the executive board of INTECOL, the International Association of Ecology. Until 2015, he was the chairman of the Center for Wetland Ecology, a consortium of 20 research groups in the Netherlands and Flanders, and acted as the coordinator of the Hotspot “Shallow waters and peat meadow areas” of the Dutch national research program Knowledge for Climate. His research focuses on the biogeochemistry of wetlands at the ecosystem level, primarily the interactions between the biogeochemical cycles of carbon, nitrogen and phosphorus and the relation between biodiversity and ecosystem functioning. His studies involve nutrient-related studies of fens, bogs, river floodplains, freshwater tidal wetlands, lake marginal wetlands and mangroves, as well as the impacts of nutrient loading of wetlands on water quality and on greenhouse gas emissions, in the context to climate change and land use change.
Please click here to watch the trailer from New Wilderness.
October 2016: Will Reintroduction of Fire along Coastal Gradients Promote Lateral Migration of Marsh and Enhance Biodiversity?
Julia Cherry received her B.S. in Biology from Rhodes College in Memphis, Tennessee in 1999 and her Ph.D. in Biological Sciences at the University of Alabama in 2005. After completing a post-doctoral appointment at the USGS National Wetlands Research Center (NWRC) in Lafayette, Louisiana, Julia returned to the University of Alabama in 2006 as an Assistant Professor in the Departments of Biological Sciences and New College. She has since been promoted to the rank of Associate Professor. Currently, her research is aimed at understanding the effects of climate change and other environmental impacts on wetlands of the southeastern United States. She serves as the SWS Treasurer and the Ways and Means Committee Co-Chair.
Loretta Battaglia is a community ecologist with over 25 years of experience working in wetlands. She received her B.S. in Zoology in 1988 and her M.S. in Biology in 1991 from the University of Louisiana at Monroe. She received her Ph.D. in Ecology from the University of Georgia in 1998. Following graduation, Loretta entered a post-doctoral position at Louisiana State University. In 2003, she accepted a tenure-track Assistant Professor position in the Department of Plant Biology at Southern Illinois University (SIU) where she was promoted to Associate Professor in 2009. She is interested in the dynamics of wetland plant communities and the ecological processes that link them with the surrounding landscape. Specifically, research in her lab focuses on the effects of climate change and exotic species invasions on community structure and function, as well as development of restoration targets for coastal wetlands undergoing rapid climate change. Loretta’s current projects include research on assisted migration and prescribed burning as management tools in coastal ecosystems threatened by climate change. She serves as the SWS Secretary General and the Membership Committee Chair.
September 2016: Highlights and Overview of the 2011 National Wetland Condition Assessment (NWCA) and Upcoming 2016 NWCA
Highlights and Overview of the 2011 National Wetland Condition Assessment (NWCA) and Upcoming 2016 NWCA presented a summary of the methods and findings of the first national assessment of wetland condition and a preview of the 2016 assessment. The NWCA is part of U.S. Environmental Protection Agency’s (USEPA) National Aquatic Resource Surveys, and is conducted every five years by the USEPA and its federal and state partners. The survey design allows extrapolation of results to national and regional scales, while chemical, physical, and biological measures are used to measure wetland condition and stressor extent. The results of the 2011 assessment and all NARS surveys are presented in a report available to the public. The webinar was presented by Mary E. Kentula, who is a wetland ecologist with the USEPA’s National Health and Environmental Effects Laboratory’s Western Ecology Division and the technical lead for the NWCA.
Dr. Mary E. Kentula is a Wetlands Ecologist with the U.S. Environmental Protection Agency’s (USEPA) National Health and Environmental Effects Laboratory, Western Ecology Division in Corvallis, Oregon. From 1992 through 1996 she served as the national program leader for the Agency’s Wetland Research Program and was responsible for directing and coordinating studies of freshwater wetlands across the nation. Mary’s research within the Program focused on the use of restoration techniques in wetland management. Among Mary’s publications from that work is the book, Wetland Creation and Restoration: The Status of the Science, which she co-edited with Dr. Jon Kusler in 1990. Mary’s current work supports the EPA’s National Aquatic Resource Surveys through the development of approaches to monitor and report on the ecological condition of wetlands. Among her awards, the Society of Wetland Scientists recognized Dr. Kentula with the Merit Award in 2007 for her work in assessing wetlands at the watershed scale. This was followed by the successful completion of the 2011 National Wetland Condition Assessment (NWCA). Mary’s research team led the production of the field operations manual used in the assessment, played a major role in data analysis and reporting, contributed to the final report and wrote the technical report. The technical report details the analysis used in the NWCA. The team is currently providing technical support for the 2016 assessment.
August 2016: Status and Trends of Wetland Restoration
The practice of wetland restoration and our understanding of wetland science has evolved significantly over the last 50 years. However, numerous studies have documented the shortcomings of wetland mitigation and voluntary restoration projects to achieve stated goals. In 2013, the Association of State Wetland Managers began to identify some barriers to wetland restoration and established a Work Group of 25 restoration experts, including practitioners, academics, consultants, regulators, and policy makers, to further identify and analyze these barriers and develop recommendations to address them. There is general agreement among restoration professionals that the science exists to achieve restoration goals and that wetland restoration performance will improve if certain barriers are addressed. Climate change has heightened the interest in using wetland restoration as a tool for mitigation and adaptation and thus the goals and designs for wetland restoration have become more complex and diverse. Although there is no "cookbook approach" for wetland restoration, there are concrete steps we can take to improve restoration outcomes. This presentation will discuss the findings of the Association of State Wetland Managers and its Wetland Restoration Work Group including recommendations from its draft white paper, "Wetland Restoration: Contemporary Issues & Lessons Learned."
Marla J. Stelk is a Policy Analyst at the Association of State Wetland Managers. She has been ASWM’s project leader for two U.S. EPA wetland restoration grants and coordinates a wetland restoration workgroup. Marla coordinates and moderates the Wetland Mapping Consortium and the Natural Floodplain Functions Alliance webinar series. She is also the Association’s Communications Team leader and the Editor of Wetland Breaking News. Marla comes to ASWM with a strong professional background in environmental issues, stakeholder engagement, facilitation, special events and communications. She has been focused on climate change issues for 20 years, beginning in 1997. At ASWM she has continued her work on climate change issues and is a member of the Advisory Committee on the Water Information Water Resources Adaptation to Climate Change Workgroup. Marla earned her MA in Community Planning and Development with a focus on Land Use and the Environment at the Muskie School of Public Service and her BA in Environmental Issues from Colorado College.
Jeanne Christie has been with ASWM since 1999 and Executive Director since 2001. From 1995 to 1999 she was a Resource Conservationist with the USDA Natural Resources Conservation Service, Wetlands and Watersheds Division where she was national program leader for the Wildlife Habitat Incentives Program. She worked for the U.S. Environmental Protection Agency, Wetlands Division (1988-1995) moving from the staff level to Section Chief and Acting Branch Chief. As an environmental planner at the Wisconsin Department of Natural Resources (1985-1988) responsibilities included the Green Bay Remedial Action Plan and the 208 Watershed Plan for Southeastern Wisconsin. She has a B.A. in Political Science and a B.S. in Environmental Science, both from the University of Maine at Presque Isle. Jeanne is a 2007 winner of the National Wetlands Award for Education and Outreach.
July 2016: Lessons Learned from Large Scale Wetland Restoration: Case Studies from around the U.S.
Jeff Trulick with the U.S. Army Corps of Engineers will present lessons learned from the many decades of Corps planning, design and implementation of major wetland restoration projects.
New Mid-Atlantic President, Jeff Trulick, is with the U.S. Army Corps of Engineers. Jeff works in the headquarters office conducting planning, environmental and policy reviews on primarily Corps feasibility studies across their various mission areas, which includes Aquatic Ecosystem Restoration. Jeff will present lessons learned from the many decades of Corps planning, design and implementation of major wetland restoration projects.
May 2016: Structural and Functional Responses of Coastal Wetlands to Changes in Mangrove Cover
Global changes are causing broad-scale shifts in vegetation communities worldwide, including in coastal wetlands where mangrove stands are increasing their range and displacing salt marshes. Coastal wetlands provide valuable ecosystem services including: habitat and food web support, buffering coastal areas from storms and sea level rise and filtering water. Coastal wetlands also store more carbon per area in their soils than other ecosystems, making them globally important “blue carbon” sinks. Changes in carbon storage rates based on vegetation shifts may represent important feedbacks to climate change and since changes in soil carbon storage influence soil elevation, may alter vulnerability of coastal wetlands and the services they provide. Changes between functionally distinct woody mangroves and marsh vegetation are likely to alter ecosystem function, and changes in proportion of each vegetation type may have non-linear effects. Yet, we lack an adequate understanding of how changing foundation species identity and density will affect coastal ecosystem structure and function.
Mangrove range and cover fluctuate due to expansion during periods with warm winters and loss from severe freezes and anthropogenic impacts. In Texas, black mangrove (Avicennia germinans) cover increased by 74% between 1990 and 2010. With increasing winter temperatures, black mangroves are predicted to replace salt marshes throughout much of the Gulf Coast within this century. To understand likely functional implications of vegetation change, a common technique is to compare structural and functional differences among existing mangrove, salt marsh and mixed vegetation communities, but this method runs the risk of confounding the effects of the vegetation community with underlying abiotic conditions. Thus, we created a field experiment in which mangrove density was manipulated to represent 0-100% mangrove cover in ten 24 x 42 m plots in Port Aransas, Texas (just down the road from SWS 2016 Corpus Christi!). We tested how plant species identity and density alter: 1) microclimate 2) magnitude and mechanisms of changes in carbon storage 3) marsh vegetation regeneration and 4) habitat use by birds.
This talk will 1) outline changes in mangrove cover in coastal wetlands particularly in the US Gulf Coast, 2) utilize the literature of woody encroachment to expand understanding of functional implications of vegetation change in coastal wetlands, and 3) introduce our upcoming paper and additional findings highlighting the functional impacts of coastal wetland vegetation change.
Sean Charles is a PhD candidate at Florida International University (Major Professor Dr. John Kominoski). Sean is interested in how global and local anthropogenic impacts alter wetland ecosystem functions, services and vulnerability. Sean is currently investigating the ways that biogeochemical changes associated with sea-level rise and vegetation shifts caused by global climate change alter carbon storage and vulnerability in coastal wetlands, both in the Florida Everglades and in Coastal Texas. Sean is an active member of SWS, and is currently the student representative for the Education and Outreach and Wetland Ambassador committees.
Sean holds a master’s degree from the Virginia Institute of Marine Science (Major Professor Dr. Jim Perry), during which he looked at the development of functions in created forested wetlands and analyzed their success in the mitigation process.
This webinar will cover research conducted in coastal Texas with Principal Investigator Dr. Steve Pennings (University of Houston) and co-PIs Dr. Anna Armitage (Texas A & M Galveston) and Dr. John Kominoski (Florida International University).
April 2016: Climate Change and the Future of Blue Carbon
This webinar highlights what blue carbon is, why it's important and how it has an impact on climate change.
Salt marsh soils are the world’s most efficient carbon (C) sinks and have been so for millennia – but will they continue to be with warming climate and rapid rates of sea level rise? Over the last few thousand years the rate of sea level rise has enabled salt marsh vegetation to survive tidal flooding and accumulate C-rich soils, primarily through belowground production enhanced by contributions of mineral sediments deposited by tidal floodwaters. Globally, marsh soils store C, on average at a rate of 218 g m-2 yr-1, while emissions of the greenhouse gases methane and nitrous oxide are negligible. More importantly, marsh deposits hold at least 1,275 million metric tonnes of C globally. In recognition of their value as a C sink the carbon in salt marshes (along with that of mangroves and seagrasses) has been branded as “blue carbon”. There are now standards for calculation of the C stored through restoration of these ecosystems that can place blue carbon on the C market.
Funding from C markets should enhance restoration activities and restoration values should be based not only the renewal of active C sinks, but on stemming continued loss of the ancient C held in soils. However, since we can never “re-sequester” all the C that has been lost and we must not allow existing marsh to be replaced with “new” marsh through mitigation. If mitigation formulas included compensation for loss of existing marsh C stocks most mitigation projects would be untenable.
Climate Change and the Future of Blue Carbon was presented by Dr. Gail Chmura on Thursday, April 14, 2016. Dr. Gail Chmura is an Associate Professor in the Geography Department at McGill University, past Director of Quebec’s Global Environment and Climate Change Centre and past president of the Atlantic Canada Coastal and Estuarine Science Society. She has conducted research on tidal wetlands along both the Atlantic and Pacific coasts; and over a wide range of latitudes, from Hudson Bay to the Gulf of Mexico. Recently, she was a lead author of the Coastal Wetlands chapter of the Intergovernmental Panel on Climate Change (IPCC) publication Guidelines on National Greenhouse Gas Inventories: Wetlands. Dr. Chmura has used techniques of paleoecology, modern ecology and geomorphology to study tidal marsh response to sea level change, impacts of climate change and human perturbations on coastal ecosystems, and ecosystem services of natural and recovering salt marshes. Presently, her lab’s research is largely focused on impacts of nutrient pollution on coastal ecosystems, assessment of soil carbon stocks and rates, and greenhouse gases fluxes in salt marshes.
March 2016: Using Apex Predators & Trophic Cascades Mechanisms to Create Resilient Wetlands in a Warming World
Trophic cascades are relationships, in which, an apex predator produces direct efforts on its prey and indirect changes in faunal and floral communities. Direct predator effects on prey can be density-dependent (morality) and behavioral. By the early 1900s, apex predators had been removed from the ecosystems in North America, which lead to an irruption in prey population followed by unsustainable herbivory. Impacts in riparian areas and wetland include extensive removal of streambank vegetation, which resulted in elimination of habitat for taxa dependenct on vegetation, and signifcant reduction in biodiversity. These cascading effects further lead to streambank erosion, and increase in water temperature, and a decline in fish populations and diversity of wetland species. Environmental legislation and policy changes in the 1970s have led to restoration of apex predators to portions of North America.
These environmental changes led Cristina Eisenberg to present a comparison of North American riparian ecological community dynamics and resilency in systems with and without apex predatoring, which was drawn by a variety of studies. Then, she concluded her webinar presentation by dicussing how using apex predators and trophic cascades mechanisms to restore ecological resilency can effectively help mitigate climate change.
Using Apex Predators and Trophic Cascades Mechanisms to Create Resilient Wetlands in a Warming World, was presented by Cristina Eisenberg on March 17th, 2016. Cristina Eisenberg is the Chief Scientist at Earthwatch Institute, where she directs a citizen-science research program that is addressing global change. As an ecologist, for the past decade she has been leading a long-term ecological restoration research program in Waterton Lakes National Park, Alberta, in which she is investigating how fire, apex predators, and bison can be used to restore grassland, aspen, and wetland habitat. She has a master's degree in conservation biology from Prescott College and a PhD in Forestry and Wildlife from Oregon State University. A Smithsonian Research Associate and a Boone and Crockett Club professional member, she serves on the editorial board of the Ecological Society of America, Oregon State University Press, and the literary journal Whitefish Review. She is currently working on writing her third book, Taking the Heat: Wilflife, Food Webs and Extinction in a Warming World.
February 2016: The Importance of Wetlands in the Global Carbon Cycle
In Bill Moomaw's webinar, he discussed how wetland restoration might be used to reduce the growth and absolute amounts of carbon dioxide and methane in the atmosphere while meeting other ecosystems service goals.
Dr. Nigel Roulet's webinar addressed the importance of keeping the large northern store of carbon in wetlands and avoid emitting it to the atmosphere.
The Importance of Wetlands in Addressing Climate Change, and creating a Role for Wetlands through the Paris Climate Accord was presented by Bill Moomaw on February 11th, 2016. Bill is an Emeritus Professor of International Environmental Policy and founder of the Center for International Environment and Resource policy at Tufts University. In addition, Bill is the Co- Director of the Global Development and Environment Institute and Research Professor at Tufts University. Currently, he is researching fossil fuel externalities and the role of Restorative Development in removing carbon dioxide from the atmosphere by forest, wetlands, grasslands and agricultural soils, and correctly accounting for emissions from bioenergy.
Dr. Nigel Roulet presented on the Northern Peatlands and the Global Carbon Balance- Why All Need to Care! Dr. Nigel Roulet is a James McGill Professor of Biogeneosciences in the Department of Geography. He currently is an Associate Editor of Global Biogeochemical Cycles, Hydrological Processes, and Ecosystems and has been an Associate Editor of Wetlands and the Journal of Geophysical Research. Nigel became a member of the Academy of Science of the Royal Society of Canada in 2014 and his research focuses on the interaction among hydrology, climatology, and ecosystems processes in peatlands and forested catchments of the temperate, boreal, and arctic regions.
January 2016: Climate Change in the American Mind
The Yale Program on Climate Change Communication specializes in understanding public climate change knowledge, attitudes, policy preferences, and behavior and the underlying psychological, cultural and political factors that drive public responses.
After summarizing the latest findings about American public opinion on climate change, this webinar will provide practical insight and actionable guidance for understanding your audience’s relationship to the issue, determining the right climate or renewables messages to use, finding the best community members to work with to best disseminate your message, and more. YPCCC’s publicly available data and tools from their segmentation of the public into “Global Warming’s Six Americas” will be shared, as will their maps of public opinion about climate change at scales useful in local and regional work.
Climate Change in the American Mind: What we think, feel, do and understand about global warming and how wetlands professionals can speak about it with their constituencies, presented by Lisa Fernandez on January 14, 2016. Lisa oversees operations and communications strategy at the Yale Program on Climate Change Communication. In particular she manages outreach concerning the YPCCC’s signature research project: the Climate Change in the American Mind biannual survey measuring American public opinion on global warming.
December 2015: Wetlands and Agriculture
This webinar links up with the conclusions and recommendations from the Conference, “Wetlands in Agricultural Landscapes”, held in České Budějovice from October 11-16, 2015. The Conference was actuated in order to evaluate the potential for integrating mostly temperate-zone wetlands into intensely managed agricultural landscapes. Over 170 participants from 20 countries attended, including both wetland and agriculture scientists, as well as nature conservationists and agriculture managers.
Wetlands are amongst the most threatened habitats on Earth; in some areas up to 80% of wetlands have been lost in Europe since 1700. The key driver in the loss and degradation of wetlands has been agriculture, although important indirect drivers have also been population growth and economic development. The pressure on wetlands, and consequent loss in their area and quality, has been most severe in countries with a long history of intense agriculture. This process may be further intensified by ongoing climate change. At the same time, however, many wetlands worldwide still remain important for fisheries as well as crop production, especially in small-scale farming. Moreover, many traditional farming practices take place in human-made wetlands such as wet meadows, rice paddies and fish ponds. The valuable functions and ecosystem services of wetlands were defined on the one hand, and the important role of agriculture in food production and landscape formation was on the other. The Conference devoted special attention to the following broadly conceived topics:
- Water retention and climatic effects of wetlands on surrounding agricultural land.
- Biodiversity conservation/promotion in relation to various agricultural management practices.
- Wetland restoration and creation in predominantly agricultural regions.
- Role of wetlands in the abatement of agricultural pollution from both point and non-point sources.
- Paludiculture, its advantages and limitations. Paludiculture is the agri- or silvicultural use of re-wetted peatlands and other wetlands.
- Legislation, financial incentives and involvement of stakeholders.
The general conclusions of the Conference have been summarized as follows: There is considerable scope for obtaining many mutual benefits from the use, restoration and creation of wetlands in intensely-managed agricultural landscapes. Wetlands help fulfil the current needs of agriculture by mitigating climate change, enhancing water retention, abating agricultural pollution, and also by offering potential for innovative agricultural technologies, also including the breeding of crops tolerant of water-logging or even shallow inundation. The dissipation of the energy of incoming solar radiation through intense wetland evapotranspiration results in a more balanced climate in agriculturally used areas adjacent to wetlands. In addition, wetlands support the diversity of species, habitats and landscapes, and provide opportunities for leisure time activities. The loss of these benefits through the destruction of wetlands can partly be compensated by wetland restoration. It is, however, expensive and may require decades to achieve the desired goals.
Wetlands and Agriculture, presented by Dr. Jan Květ on December 17, 2015. Dr. Květ is a well known ecologist who has worked in the field of wetlands ecology and, especially, production ecology of wetland plants and vegetation.
November 2015: Wetland Restoration & Management in a Future of Changing Climate
The nature of future climate change will dictate avenues of successful wetland restoration and management. The Intergovernmental Panel on Climate Change (2014) suggests that future wetland environments may have high levels of water availability (extreme drought and flooding), temperature and CO2. Unfortunately, not enough information is available for near-future restoration planning on the potential responses of wetland species to climate change environments. Along sinking coasts, especially freshwater wetland species may be impacted by increased salinity intrusion, flooding, and hurricane activity. Increasing human demand for freshwater may have a major impact on both inland and coastal wetlands. Some recent research has examined minimum flows of water necessary to maintain function of riverine wetlands. For example, studies along the Mississippi in LA USA and Murray River in Australia suggest that even short periods of freshwater release could be beneficial to freshwater trees in hydrologically-altered estuaries. More research directed toward solutions to climate-induced problems may help managers develop approaches to vegetation stress in future restored and natural wetlands. Another idea that may need reconsideration is that of the reestablishment of presettlement conditions, which may be an unattainable target for restoration in climate change environments. Current day attention to potential future environments in wetlands may yield more successful restoration efforts for the future.
Wetland Restoration & Management in a Future of Changing Climate, presented by Dr. Beth A. Middleton on November 11, 2015. Dr. Middleton is a research ecologist with the National Wetlands Research Center, U.S. Geological Survey in Lafayette, Louisiana.