Article
Environmental Sciences
Maeva Beltrand, Ariel Dineen, Claudia Hitzeroth, Bianca Baum, Carla de Cerff, Casha de Vos, Jemma Lewis, Sandra Zaroufis, Deena Pillay
Summary: This study explores how warming influences the coexistence of two autogenic engineers in marine sedimentary systems. Results suggest that warming can lead to seagrass decline and increased growth of Gracilaria. Additionally, warming may decrease habitat heterogeneity and reduce habitat for specialist seagrass inhabitants.
ESTUARIES AND COASTS
(2022)
Article
Water Resources
Jill S. Baron, David W. Clow, Isabella A. Oleksy, Timothy Weinmann, Caitlin Charlton, Amanda Jayo
Summary: The Loch Vale watershed has been the subject of research and monitoring activities since 1983, investigating the impacts of atmospheric deposition on ecosystems in Rocky Mountain National Park. High atmospheric inputs of reactive nitrogen were found, leading to studies on the ecological consequences in soils, surface water, and vegetation. The research results have informed the Colorado Nitrogen Deposition Reduction Plan and revealed that mountain wetlands release more carbon than they store.
HYDROLOGICAL PROCESSES
(2021)
Article
Multidisciplinary Sciences
James J. Elser, Shawn P. Devlin, Jinlei Yu, Adam Baumann, Matthew J. Church, John E. Dore, Robert O. Hall, Melody Hollar, Tyler Johnson, Trista Vick-Majors, Cassidy White
Summary: This study examines the nutrient dynamics in Flathead Lake over a period of 38 years. Despite low nutrient levels, the lake maintained high nitrogen to phosphorus ratios. This stoichiometric imbalance led to phosphorus limitation in phytoplankton growth and affected the nutrient cycling in the entire ecosystem.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Lisa May, Elizabeth Murphy McDonald, Ronald T. J. Kothera, Catherine Anna V. Toline, Vanessa M. McDonough, Zachary J. Moffitt, Carl V. Miller, Cheryl M. Woodley
Summary: The sea urchin embryo development toxicity test was used to investigate the toxicity of benthic substrate in Biscayne National Park. The results showed that the sediment interstitial water was toxic to sea urchin embryos at most of the selected sites. These toxic sediments could negatively impact the reproduction, growth, and population density of benthic invertebrates.
Article
Environmental Sciences
Yifei Li, Chengnuo Zhang, Xiaoxuan Wang, Xiaolin Liao, Qin Zhong, Tao Zhou, Fan Gu, Hua Zou
Summary: Bacteria have important roles in biogeochemical cycling, self-purification, and food web dynamics in fresh-water ecosystems. However, the comparison between the impacts of conventional and emerging pollutants on bacteria in surface water and sediment is not well-understood. In this study, the spatial distributions of pollutants, pharmaceuticals, and bacterial communities in Taihu Lake, China were investigated. The results indicate that pharmaceuticals were more concentrated in the impacted zone and had close positive relationships with bacterial phyla in the water. The ratio of Firmicutes to Proteobacteria in surface water is suggested as a potential bioindicator for evaluating pharmaceutical contamination and bacterial resistance. In the sediment, phosphorus pollutants were associated with specific bacterial genera, suggesting a potential risk of phosphorus release from sediment to water.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Studies
Saul De La Pena-Lastra, Franck Torre, Rafael Carballeira, Maria Jose Santiso, Augusto Perez-Alberti, Xose Lois Otero
Summary: The Atlantic Islands of Galicia Maritime/Terrestrial National Park is home to one of the largest breeding colonies of yellow-legged gulls in the world. This study assesses the impact of a new yellow-legged gull breeding colony on two habitats of community interest: white dunes and grey dunes. The results show significant changes in soil properties and vegetation cover in plots with higher gull densities.
Article
Environmental Sciences
Brian E. Lapointe, Alexander Tewfik, Myles Phillips
Summary: The study shows that the decline in scleractinian coral cover and the increase in macroalgal blooms on the Belize Barrier Reef are mainly attributed to land-based nutrient pollution. Analysis indicates that nutrients in macroalgae primarily come from land, with delta N-15 values matching those of human sewage, suggesting that nitrogen enrichment has increased phosphorus limitation, driving macroalgal blooms and impacting coral on the BBR.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Kelly M. Dorgan, Sanjay R. Arwade
Summary: Infaunal organisms play a crucial role in mixing sediments through their burrowing activities. This study explores the role of sediment properties, specifically the cohesive properties, in resisting bioturbation. The results show that crack branching and tortuosity, as well as sediment mechanical properties, influence crack propagation paths. The findings suggest that material properties of sediments may be important in determining the extent of bioturbation.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Environmental Sciences
B. C. Webster, M. N. Waters, S. W. Golladay
Summary: Reservoirs, commonly found along rivers, provide a multitude of ecosystem services such as sequestering sediments and nutrients. Studies need to focus on understanding how reservoirs function individually and as part of sequences within large rivers and watersheds. Further research is needed to explore the impacts of reservoirs on nutrient deposition and their interactions within watershed-sediment-transport systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Maria Letizia Costantini, Homira Agah, Federico Fiorentino, Farnaz Irandoost, Francisco James Leon Trujillo, Giulio Careddu, Edoardo Calizza, Loreto Rossi
Summary: This study detected nitrogen inputs and metal pollution sources in two anthropized coastal areas of the Caspian Sea in Iran, finding that industrial fertilizers and wastewaters are the main sources of pollution. Metal concentrations varied widely, with localized peaks of lead and zinc likely from mining activity, and high concentrations of chromium and nickel potentially harmful to marine biota.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
S. De La Pena-Lastra, C. Gomez-Rodriguez, A. Perez-Alberti, F. Torre, X. L. Otero
Summary: Seabirds, particularly yellow-legged gulls in the Atlantic Islands of Galicia National Park, have significant and lasting effects on soil properties and vegetation. This study found that nutrient concentrations in soil differ between control sites and subcolonies, with the densest subcolonies showing a clear shift towards ruderal vegetation. Environmental effects of seabird colonies are long-lasting, leading to irreversible transformations in soil and vegetation, even after the birds have disappeared.
Review
Environmental Sciences
Dorte Krause-Jensen, Hege Gundersen, Mats Bjoerk, Martin Gullstroem, Martin Dahl, Maria E. Asplund, Christoffer Bostroem, Marianne Holmer, Gary T. Banta, Anna Elizabeth Lovgren Graversen, Morten Foldager Pedersen, Trine Bekkby, Helene Frigstad, Solrun Figenschau Skjellum, Jonas Thormar, Steen Gyldenkaerne, Jennifer Howard, Emily Pidgeon, Sunna Bjoerk Ragnarsdottir, Agnes Mols-Mortensen, Kasper Hancke
Summary: Vegetated coastal and marine habitats in the Nordic region, such as salt marshes, eelgrass meadows, and brown macroalgae, play a crucial role in the storage of organic carbon (Blue Carbon - BC), coastal protection, biodiversity, and water quality. The existing knowledge on Nordic BC habitats is incomplete, but indicates substantial BC stocks. However, more research is needed to provide a robust estimate of Nordic BC stocks and sequestration rates, as well as improved coordination at national and regional levels.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Ecology
Kristen M. Hart, Allison M. Benscoter, Haley M. Turner, Michael S. Cherkiss, Andrew G. Crowder, Jacquelyn C. Guzy, David C. Roche, Chris R. Sasso, Glenn D. Goodwin, Derek A. Burkholder
Summary: Satellite telemetry was used to study the occupancy and movement patterns of loggerhead and green sea turtles in Biscayne National Park. The turtles were found to use the park's waters year-round, with migrations occurring during specific months. Both species showed a high overlap with seagrass habitats. These findings are crucial for developing conservation strategies to protect the turtles from anthropogenic impacts.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Soil Science
Laura Pulido-Suarez, Francisco Diaz-Pena, Jesus Notario-del Pino, Ayose Medina-Cabrera, Milagros Leon-Barrios
Summary: The study shows that herbivory and droppings of rabbits can affect the stability and diversity of the symbiosis between Spartocytisus supranubius and rhizobia in the high-mountain ecosystem of Teide National Park.
APPLIED SOIL ECOLOGY
(2021)
Article
Engineering, Environmental
Guining Wei, Ruoyu Yuan, Muhammad Salam, Lixue Zhang, Yanyan Wei, Bingran Tang, Xiaobing Yuan, Bingsheng Liu, Xianhuai Yu, Hong Li, Xiaojun Miao
Summary: The use of oxygen-loaded lanthanum modified zeolites (LOZ) can effectively absorb phosphorus and nitrogen from lake sediments, while improving dissolved oxygen levels and reducing the release of these nutrients into the overlying water. This approach provides a quick, efficient, and sustainable remediation method for polluted water systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Laurel S. Collins, Jie Cheng, Lee-Ann C. Hayek, James W. Fourqurean, Martin A. Buzas
JOURNAL OF PALEOLIMNOLOGY
(2019)
Article
Multidisciplinary Sciences
V Saderne, N. R. Geraldi, P. Macreadie, D. T. Maher, J. J. Middelburg, O. Serrano, H. Almahasheer, A. Arias-Ortiz, M. Cusack, B. D. Eyre, J. W. Fourqurean, H. Kennedy, D. Krause-Jensen, T. Kuwae, P. S. Layery, C. E. Lovelock, N. Marba, P. Masque, M. A. Mateo, I Mazarrasa, K. J. McGlathery, M. P. J. Oreska, C. J. Sanders, I. R. Santos, J. M. Smoak, T. Tanaya, K. Watanabe, C. M. Duarte
NATURE COMMUNICATIONS
(2019)
Article
Environmental Sciences
Sara S. Wilson, Bradley T. Furman, Margaret O. Hall, James W. Fourqurean
ESTUARIES AND COASTS
(2020)
Article
Multidisciplinary Sciences
Peter I. Macreadie, Andrea Anton, John A. Raven, Nicola Beaumont, Rod M. Connolly, Daniel A. Friess, Jeffrey J. Kelleway, Hilary Kennedy, Tomohiro Kuwae, Paul S. Lavery, Catherine E. Lovelock, Dan A. Smale, Eugenia T. Apostolaki, Trisha B. Atwood, Jeff Baldock, Thomas S. Bianchi, Gail L. Chmura, Bradley D. Eyre, James W. Fourqurean, Jason M. Hall-Spencer, Mark Huxham, Iris E. Hendriks, Dorte Krause-Jensen, Dan Laffoley, Tiziana Luisetti, Nuria Marba, Pere Masque, Karen J. McGlathery, J. Patrick Megonigal, Daniel Murdiyarso, Bayden D. Russell, Rui Santos, Oscar Serrano, Brian R. Silliman, Kenta Watanabe, Carlos M. Duarte
NATURE COMMUNICATIONS
(2019)
Editorial Material
Environmental Sciences
Anna Wachnicka, Anna R. Armitage, Ian Zink, Joan Browder, James W. Fourqurean
ESTUARIES AND COASTS
(2020)
Article
Environmental Sciences
Jason L. Howard, Christian C. Lopes, Sara S. Wilson, Vicki McGee-Absten, Claudia I. Carrion, James W. Fourqurean
Summary: The study tested the paradigm for understanding the accumulation of organic carbon in vegetated coastal blue carbon habitats and examined the lability of soil organic carbon, finding that burial does not necessarily enhance C(org) storage and that soil C stores are weakly correlated with seagrass biomass at the landscape scale.
ESTUARIES AND COASTS
(2021)
Article
Limnology
Bryce R. Van Dam, Christian C. Lopes, Pierre Polsenaere, Rene M. Price, Anna Rutgersson, James W. Fourqurean
Summary: Subtropical seagrass meadows play a significant role in the coastal carbon cycle, with the first direct measurements of evaporation and CO2 flux over one such meadow near Bob Allen Keys, Florida revealing that CO2 emissions were 36% higher during the day than at night. Additionally, evaporation rates were found to be significantly higher than precipitation, leading to a potential increase in salinity and impacting seagrass health. The study also highlighted the importance of factors such as water temperature, air-water temperature gradient, and wind shear in influencing air-water CO2 exchange over these ecosystems.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
William C. Dennison, Matthew E. S. Bracken, Maria Brown, John F. Bruno, James T. Carlton, Robert C. Carpenter, Tim J. B. Carruthers, Megan N. Dethier, Carlos M. Duarte, Thomas R. Fisher, James W. Fourqurean, Richard K. Grosberg, Leila J. Hamdan, Ken L. Heck, Dan J. Howard, A. Randall Hughes, Brent B. Hughes, Gary A. Kendrick, W. Judson Kenworthy, Frank Mars, C. Peter McRoy, Rosamond L. Naylor, Bruce Nyden, John C. Ogden, Suzanne Olyarnik, Robert J. Orth, Frederick T. Short, Cascade J. B. Sorte, John J. Stachowicz, Donald R. Strong, Christine Sur, Michelle Waycott
Summary: Susan Lynn Williams was a respected scientist in the field of marine ecology, whose research findings were widely applied to the conservation of marine ecosystems. She exhibited outstanding academic achievements and leadership abilities, excelling in scientific discovery, integration, conservation, and teaching.
ESTUARIES AND COASTS
(2021)
Article
Ecology
Robert J. Nowicki, Jordan A. Thomson, James W. Fourqurean, Aaron J. Wirsing, Michael R. Heithaus
Summary: Extreme climatic events and predator removal are significant stressors to ecosystems, and their interactions can exacerbate effects. Simulating predator loss effects on herbivore behaviors can intensify ecosystem responses to extreme events, promoting tropicalization even without species range shifts.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Article
Environmental Sciences
Bryce Van Dam, Pierre Polsenaere, Aylin Barreras-Apodaca, Christian Lopes, Zulia Sanchez-Mejia, Tatsuki Tokoro, Tomohiro Kuwae, Lucia Gutierrez Loza, Anna Rutgersson, James Fourqurean, Helmuth Thomas
Summary: Coastal vegetated habitats such as seagrass meadows play a crucial role in mitigating anthropogenic carbon emissions by sequestering CO2 as blue carbon. This study highlights the complex interactions between air-water CO2 exchange and organic carbon storage in seagrass meadows, with a focus on global scale patterns and physical drivers influencing CO2 fluxes. The findings underscore the need for a comprehensive approach to carbon assessments in coastal ecosystems, taking into account both biological and physical factors.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Engineering, Marine
Michael S. Owens, Stephen P. Kelly, Thomas A. Frankovich, David T. Rudnick, James W. Fourqurean, Jeffrey C. Cornwell
Summary: The study estimated the net exchange of nitrogen and phosphorus species in estuarine lakes, revealing high efflux of NH4+ in dark conditions and significantly decreased efflux in light conditions. The presence of Chara hornemannii Wallman was found to have a large impact on NH4+ efflux, and it is expected that increased freshwater flow from the Everglades will influence NH4+ release in lakes.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Bryce R. Van Dam, Mary A. Zeller, Christian Lopes, Ashley R. Smyth, Michael E. Boettcher, Christopher L. Osburn, Tristan Zimmerman, Daniel Proefrock, James W. Fourqurean, Helmuth Thomas
Summary: Long-term Blue Carbon burial in seagrass meadows is influenced by other carbon and alkalinity exchanges, with ecosystem calcification-induced CO2 emissions being the main contributor. Overestimation of net carbon sequestration potential may occur if these emissions are not taken into account.
Article
Environmental Sciences
H. Kennedy, J. F. Pages, D. Lagomasino, A. Arias-Ortiz, P. Colarusso, J. W. Fourqurean, M. N. Githaiga, J. L. Howard, D. Krause-Jensen, T. Kuwae, P. S. Lavery, P. Macreadie, N. Marba, P. Masque, I Mazarrasa, T. Miyajima, O. Serrano, C. M. Duarte
Summary: This study examined the drivers of organic carbon stocks in seagrass meadows globally. The species identity was found to be an important factor influencing soil organic carbon stocks, with key species traits including leaf number, belowground biomass, leaf lifespan, and aboveground biomass. The revised estimate of the global average soil organic carbon stock to a depth of 20 cm is 15.4 Mg C ha(-1), and the largest stocks were recorded in Mediterranean seagrass meadows.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Environmental Sciences
Johannes R. Krause, Christian C. Lopes, Sara S. Wilson, Joseph N. Boyer, Henry O. Briceno, James W. Fourqurean
Summary: Although seagrass ecosystems globally decline due to human impacts, the Florida Keys has maintained stable benthic communities over the past 25 years. However, loss of the climax seagrass Thalassia testudinum has been observed in the Florida Keys National Marine Sanctuary, with no or partial recovery. Nutrient-enriched nearshore sites show a shift towards Halodule wrightii meadows, while major hurricanes have caused almost complete loss of seagrass meadows at offshore sites. This study highlights the importance of long-term monitoring programs in understanding benthic community trajectories and informing future seagrass conservation efforts.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
James W. Fourqurean, Justin E. Campbell, O. Kennedy Rhoades, Calvin J. Munson, Johannes R. Krause, Andrew H. Altieri, James G. Douglass, Kenneth L. Heck, Valerie J. Paul, Anna R. Armitage, Savanna C. Barry, Enrique Bethel, Lindsey Christ, Marjolijn J. A. Christianen, Grace Dodillet, Katrina Dutton, Thomas K. Frazer, Bethany M. Gaffey, Rachael Glazner, Janelle A. Goeke, Rancel Grana-Valdes, Olivier A. A. Kramer, Samantha T. Linhardt, Charles W. Martin, Isis Gabriela Martinez Lopez, Ashley M. McDonald, Vivienne A. Main, Sarah A. Manuel, Candela Marco-Mendez, Duncan A. O'Brien, Owen O'Shea, Christopher J. Patrick, Clare Peabody, Laura K. Reynolds, Alex Rodriguez, Lucia M. Rodriguez Bravo, Amanda Sang, Yvonne Sawall, Fee O. H. Smulders, Jamie E. Thompson, Brigitta van Tussenbroek, William L. Wied, Sara S. Wilson
Summary: The organic carbon stored in seagrass meadows is globally significant and could be relevant in strategies to mitigate increasing CO2 concentration in the atmosphere. Seagrass abundance is a good predictor of the soil organic carbon stocks, and the relative availability of nutrients N and P also influences carbon storage. Nutrient availability and eutrophication are likely to exert a strong influence on carbon storage in seagrass meadows.
ESTUARIES AND COASTS
(2023)