| Titre : | Estuaries and Coasts 36(3) - MAY 2013 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Grace M. Cott, Auteur ;
Deborah V. Chapman, Auteur ;
Marcel A. K. Jansen, Auteur
Ombrogenic Atlantic salt marshes are defined as areas of halophytic, terrestrial vegetation which are periodically flooded by the tide and have a predominant underlying organic substrate comprising of wood and/or Sphagnum peat that formed under [...]
Article
Andrew H. Baldwin, Auteur
To test species composition and biomass responses to excess nutrients, herbaceous plants of tidal freshwater and oligohaline wetlands in a Chesapeake Bay subestuary were fertilized with nitrogen (N), phosphorus (P), both N and P (N + P), or not [...]
Article
Nicole Cormier, Auteur ;
Ken W. Krauss, Auteur ;
William H. Conner, Auteur
Many tidally influenced freshwater forested wetlands (tidal swamps) along the south Atlantic coast of the USA are currently undergoing dieback and decline. Salinity often drives conversion of tidal swamps to marsh, especially under conditions of[...]
Article
Kerstin Wasson, Auteur ;
Andrea Woolfolk, Auteur ;
Carla Fresquez, Auteur
Ecotones, the narrow transition zones between extensive ecological systems, may serve as sensitive indicators of climate change because they harbor species that are often near the limit of their physical and competitive tolerances. We investigat[...]
Article
Mihee Jun, Auteur ;
Anne E. Altor, Auteur ;
Christopher B. Craft, Auteur
We investigated the effects of increasing salinity and inundation on inorganic N exchange and P sorption/precipitation in soils of tidal freshwater floodplain forests (TFFF) of coastal Georgia, USA. Our objectives were to better understand how s[...]
Article
Elizabeth Burke Watson, Auteur ;
Roger Byrne, Auteur
Currently, the largest tidal wetlands restoration project on the US Pacific Coast is being planned and implemented in southern San Francisco Bay; however, knowledge of baseline conditions of salt marsh extent in the region prior to European sett[...]
Article
Chuan Tong, Auteur ;
Jia F. Huang, Auteur ;
Zhi Q. Hu, Auteur ;
Yu F. Jin, Auteur
Measuring fluxes of greenhouse gases (GHGs) is fundamental to estimating their impact on global warming. We examined diurnal variations of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) vertical fluxes in a tidal marsh ecosystem. M[...]
Article
Scott C. Neubauer, Auteur
Tidal freshwater marshes exist in a dynamic environment where plant productivity, subsurface biogeochemical processes, and soil elevation respond to hydrological fluctuations over tidal to multi-decadal time scales. The objective of this study w[...]
Article
Laura J. Martin, Auteur ;
Bernd Blossey, Auteur
While public funding of invasive species management has increased substantially in the past decade, there have been few cross-institutional assessments of management programs. We assessed management of Phragmites australis, a problematic invader[...]
Article
Robert E. Vincent, Auteur ;
David M. Burdick, Auteur ;
Michele Dionne, Auteur
Anthropogenic activities in New England salt marshes have altered hydrologic flows in various ways, but unintended consequences from some types of habitat modifications have received little attention. Specifically, ditches have existed on salt m[...]
Article
David Emerson, Auteur ;
Wendy Bellows, Auteur ;
Jason K. Keller, Auteur ;
Craig L. Moyer, Auteur ;
Ariana Sutton-Grier, Auteur ;
J. Patrick Megonigal, Auteur
The interaction of plant and microbial communities are known to influence the dynamics of methane emission in wetlands. Plant manipulations were conducted in an organic rich (JB-organic) and a mineral rich (JB-mineral) site in a tidal freshwater[...]
Article
P. Delgado, Auteur ;
P. F. Hensel, Auteur ;
C. W. Swarth, Auteur ;
M. Ceroni, Auteur ;
R. Boumans, Auteur
A 115-year-old railroad levee bisecting a tidal freshwater marsh perpendicular to the Patuxent River (Maryland) channel has created a northern, upstream marsh and a southern, downstream marsh. The main purpose of this study was to determine how [...]
Article
Jason K. Keller, Auteur ;
Ariana E. Sutton-Grier, Auteur ;
Allyson L. Bullock, Auteur ;
J. Patrick Megonigal, Auteur
For energetic reasons, iron reduction suppresses methanogenesis in tidal freshwater wetlands; however, when iron reduction is limited by iron oxide availability, methanogenesis dominates anaerobic carbon mineralization. Plants can mediate this m[...]
Article
Christopher W. Swarth, Auteur ;
Patricia Delgado, Auteur ;
Dennis F. Whigham, Auteur
Tidal freshwater wetlands are complex, species-rich ecosystems located at the interface between tidal estuaries and nontidal rivers. This study conducted on the Patuxent River estuary in Maryland was designed to assess vegetation dynamics over s[...]
Article
Aat Barendregt, Auteur ;
Christopher W. Swarth, Auteur
Tidal freshwater wetlands (TFW) are situated in the upper estuary in a zone bordered upstream by the nontidal river and downstream by the oligohaline region. Here, discharge of freshwater from the river and the daily tidal pulse from the sea com[...]
Article
Scott Ensign, Auteur ;
Kaylyn Siporin, Auteur ;
Mike Piehler, Auteur ;
Martin Doyle, Auteur ;
Lynn Leonard, Auteur
Tidal freshwater wetlands (TFW) alter nitrogen concentrations in river water, but the role of these processes on a river's downstream nitrogen delivery is poorly understood. We examined spatial and temporal patterns in denitrification in TFW of [...]
Article
Allyson L. Bullock, Auteur ;
Ariana E. Sutton-Grier, Auteur ;
J. Patrick Megonigal, Auteur
Understanding the ecological processes that regulate the production and fate of methane (CH4) in wetland soils is essential for forecasting wetland CH4 emissions. Iron reduction is an important carbon mineralization pathway that is capable of su[...]
Article
David J. Yozzo, Auteur ;
David T. Osgood, Auteur
Benthic macroinvertebrate abundance, taxonomic composition, and surface flooding dynamics were compared among high and low elevation stands of narrow-leaved cattail (Typha angustifolia) and invasive common reed (Phragmites australis) at Iona Isl[...]
