Wetlands (WETLANDS)

Publisher: Society of Wetland Scientists (U.S.), Springer Verlag

Journal description

Wetlands is an international journal concerned with all aspects of wetlands biology, ecology, hydrology, water chemistry, soil and sediment characteristics, management, and laws and regulations. The journal is published quarterly, with the goal of centralizing the publication of pioneering wetlands work that is otherwise spread among a myriad of journals. Since wetlands research usually requires an interdisciplinary approach, the journal in not limited to specific disciplines but seeks manuscripts reporting research results from all relevant disciplines. Journal of The Society of Wetland Scientists.

Current impact factor: 1.44

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.444
2012 Impact Factor 1.283
2011 Impact Factor 1.338
2010 Impact Factor 1.238
2009 Impact Factor 1.328
2008 Impact Factor 1.117
2007 Impact Factor 0.973
2006 Impact Factor 1.109
2005 Impact Factor 1.274
2004 Impact Factor 0.923
2003 Impact Factor 1.28
2002 Impact Factor 1.063
2001 Impact Factor 1.137
2000 Impact Factor 0.993
1999 Impact Factor 0.913
1998 Impact Factor 0.802
1997 Impact Factor 0.644
1996 Impact Factor 0.753
1995 Impact Factor 1.348
1994 Impact Factor 0.548
1993 Impact Factor 0.375
1992 Impact Factor 0.421

Impact factor over time

Impact factor

Additional details

5-year impact 1.80
Cited half-life 8.70
Immediacy index 0.30
Eigenfactor 0.01
Article influence 0.57
Website Wetlands website
Other titles Wetlands (Wilmington, N. C.: Online), Wetlands
ISSN 0277-5212
OCLC 47723678
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Springer Verlag

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Author's pre-print on pre-print servers such as arXiv.org
    • Author's post-print on author's personal website immediately
    • Author's post-print on any open access repository after 12 months after publication
    • Publisher's version/PDF cannot be used
    • Published source must be acknowledged
    • Must link to publisher version
    • Set phrase to accompany link to published version (see policy)
    • Articles in some journals can be made Open Access on payment of additional charge
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The close interplay between hydraulic and biotic processes controls the evolution of ecosystems in large, circumboreal peatlands and the degree to which they lose, gain or sequester carbon. In peatlands, biota significantly alters surficial acid-base equilibrium and solute chemistry by releasing dissolved organic compounds into surface and pore waters, which then mix through advection and dispersion through pore water flow paths. We report herein the results of new geochemical mixing models that incorporates organic acid dissociation constants to understand how organic acids control the acid-base chemistry in mixtures of dilute acidic bog pore waters and circum-neutral groundwater (typical of carbonate terrains) that upwells or disperses into peat deposits. In our new mixing models, at least twice as much groundwater is required to neutralize bog water acidity when dissolved organic carbon concentrations exceed 10 mmol/L than in their absence. Although it remains uncertain how future climatic change will alter the composition of dissolved organic matter in peatlands, organic acids should remain an important factor with respect to potential neutralization of peatland waters by groundwater sources. The acid base equilibria in large peat basins not only has important implications for vegetation patterning but also for biogeochemical cycles in these globally important reservoirs for carbon.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0646-2
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    ABSTRACT: The Lhasa River Basin is one of the typical distribution regions of alpine wetlands on the Tibetan Plateau. The aims of this study were to analyze characteristics of distribution of soil microarthropod communities and relationship with soil factor in this area. We selected six wetlands as the study areas. Soil microarthropods were extracted from the soil samples collected from each habitat in August 2009 and 2010. The soil microarthropod communities consisted of 30 taxa and 3356 individuals. Overall, habitat of Kobresia pygmaea + Potentilla anseriana had a greater abundance than all of the other habitats. The soil microarthopod communities exhibited significant differences among the habitats at the 0-10, 10-20 and 20-30 cm depth. Dominant groups increased as the soil layer deepened. Oribatida was the dominant order in three soil layers, however, Isotomidae was the only dominant family at the 0-10 cm depth. Canonical correspondence analysis (CCA) showed that soil microarthopod communities was significantly correlated with soil total K content in the 0-10 soil layers. However, soil microarthopod communities was significantly correlated with soil available N content in 10-20 cm soil layer, soil total N content in the 20-30 cm soil layer.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0649-z
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    ABSTRACT: The assessment of constructed treatment wetland success usually relies on abiotic measures, such as nutrient level reduction. Because constructed wetlands eventually function as whole ecosystems, and their biotic components play a role in water treatment, it is important to consider the development of associated flora and fauna when conducting site assessments. The goal of this two-year case study was to observe ecosystem establishment at a constructed stormwater treatment wetland adjacent to Lake George in the Adirondack Mountains of New York, with a focus on macroinvertebrate and vegetation community development. The first year of the study occurred during a period of natural succession. The second year occurred following the artificial introduction of 85 plant species. The vegetation community predictably improved in richness, evenness, and diversity. The macroinvertebrate community experienced substantial shifts in dominant taxa. Importantly, each pond in the wetland’s treatment train developed unique profiles over time as defined by their vegetation and macroinvertebrate communities, as well as by their water chemistry. While the specific biotic and abiotic drivers creating these unique ponds have not been identified, the disparate profiles and how they function together will determine stormwater treatment efficiency after further site maturation.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0652-4
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    ABSTRACT: Non-native Phragmites australis poses an increasing threat to salt marsh eco-systems in the eastern United States. Multiple factors affect P. australis spread, including reduced salinity and nitrogen runoff. Methods for measuring expansion, such as field surveys or geographic information system (GIS) mapping, often require tradeoffs between precision and scope. We combined field work with high-precision global positioning system (GPS) technology and GIS to investigate expansion of 16 P. australis patches at Drakes Island Marsh in Wells, Maine. Our objectives were to: 1) calculate change in patch area, 2) determine whether expansion varied with respect to site-specific variables, and 3) determine whether expansion varied with respect to landscape variables. Significant patch expansion occurred in 1 year, with an 11 % increase in overall coverage. Expansion was negatively related to pore water salinity, with salinity accounting for 25 % of the variation in expansion. Expansion showed an unexpected directionality warranting further investigation, with patches expanding northeastward more so than in other compass directions. Our methodology allowed for measurement of multiple marsh patches and key variables yet captured small-scale changes over only one growing season. This methodology could potentially be a useful tool for studying expansion rates of invasive species in other salt marsh systems.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0645-3
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    ABSTRACT: Numerous studies have investigated impacts of oil spills on coastal ecosystems, but no previous studies have tested effects of spilled oil on inland salt marshes. This study used experimental mesocosms to test effects of spilled motor oil on inland salt marsh communities in a greenhouse experiment. It was hypothesized that oil exposure would lead to decreases in photosynthesis, chlorophyll, canopy coverage, and biomass. Communities of plants were collected from a salt marsh in Kansas, USA, and used motor oil was applied at 10 L m−2 to mesocosm soil with a treatment of 10 weeks. In the dominant species, inland salt grass (Distichlis spicata), oil exposure resulted in a 91 % decrease in photosynthetic rates and an 83 % reduction in chlorophyll concentration. Community-level biomass was primarily driven by D. spicata, where above-ground biomass was reduced by 34 % for D. spicata and by 31 % for total community biomass in oil treatments. Canopy coverage measures were similar to biomass measures, with significant reductions in D. spicata with oil exposure and no difference between treatments for less abundant species. Inland marsh plants are sensitive to spilled motor oil. These results could help future studies to determine how salt marsh vegetation is impacted by spilled oil.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0636-4
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    ABSTRACT: Wetlands provide important habitats to many bird species but are also under threat from human-caused degradation. The Kilombero Valley Floodplain Ramsar site in Tanzania has been subject to an increasing level of disturbance, but harbors the endemic Kilombero Weaver, Kilombero Cisticola and White-tailed Cisticola, as well as several other species of local, national and global importance. Using point counts over a year, we studied seasonal patterns in bird species richness, diversity and abundance, as related to habitat types in the riparian zone along the Kilombero River. Particular focus was on Important Bird and Biodiversity Area (IBA) ‘trigger’ species. Richness, abundance and diversity were highest in July, just after the wet season, and lowest in March when the water level started rising. The endemic Kilombero Weaver (Ploceus burnieri) was by far the most common species. Reeds and grass-bush habitats had the highest bird diversity throughout, and all three endemic taxa showed a preference for these vegetation types. After decades of increasing human disturbance, Kilombero still qualify as an IBA. Large numbers of livestock have recently been evicted from the area, and this study could serve as a benchmark on how this change will affect bird populations in the future.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0640-8
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    ABSTRACT: We explore the category “geographically isolated wetlands” (GIWs; i.e., wetlands completely surrounded by uplands at the local scale) as used in the wetland sciences. As currently used, the GIW category (1) hampers scientific efforts by obscuring important hydrological and ecological differences among multiple wetland functional types, (2) aggregates wetlands in a manner not reflective of regulatory and management information needs, (3) implies wetlands so described are in some way “isolated,” an often incorrect implication, (4) is inconsistent with more broadly used and accepted concepts of “geographic isolation,” and (5) has injected unnecessary confusion into scientific investigations and discussions. Instead, we suggest other wetland classification systems offer more informative alternatives. For example, hydrogeomorphic (HGM) classes based on well-established scientific definitions account for wetland functional diversity thereby facilitating explorations into questions of connectivity without an a priori designation of “isolation.” Additionally, an HGM-type approach could be used in combination with terms reflective of current regulatory or policymaking needs. For those rare cases in which the condition of being surrounded by uplands is the relevant distinguishing characteristic, use of terminology that does not unnecessarily imply isolation (e.g., “upland embedded wetlands”) would help alleviate much confusion caused by the “geographically isolated wetlands” misnomer.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0631-9
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    ABSTRACT: Monsoonal estuaries, located along the coastline of the Indian subcontinent, differ from other estuaries by their time dependence on the salinity characteristics. Effective sustenance and retention of the mesozooplankton community in the estuarine habitats is often determined by their dominant behavioral patterns: diel vertical migration (DVM) and tidal vertical migration (TVM). The modes of these endogenous rhythms often vary among estuaries based on the river runoff and tidal characteristics. The present study is a pioneering attempt to depict the vertical migration pattern of zooplankton along a diel and tidal scale in a tropical, microtidal, monsoonal estuary. We observed that in spite of the prominent asymmetry in the magnitude of the river runoff between the seasons, most of the zooplankton groups exhibited strong DVM, with a clear increase in biomass and abundance in surface waters during night. The peak increase in biomass and abundance at night always synchronized with the slack periods in the tidal cycles, which differed from the general concepts of downward migration during ebb tide and upward migration during flood tide in estuarine systems. The weak currents during the slack period might have favored the effective vertical migration of the mesozooplankton community in this monsoonal estuarine system.
    Wetlands 06/2015; 35(3):597-610. DOI:10.1007/s13157-015-0650-6
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    ABSTRACT: We determined the best predictors of an index of amphibian biotic integrity calculated from 54 shrub and forested wetlands in Ohio, USA using a two-step sequential holdout validation procedure. We considered 13 variables as predictors: four metrics of wetland condition from the Ohio Rapid Assessment Method (ORAM), a wetland vegetation index of biotic integrity, and eight metrics from a landscape disturbance index. For all iterations, the best model included the single ORAM metric that assesses habitat alteration, substrate disturbance, and habitat development within a wetland. Our results align with results of similar studies that have associated high scores for wetland vegetation indices of biotic integrity with low habitat alteration and substrate disturbance within wetlands. Thus, implementing similar management practices (e.g., not removing downed woody debris, retaining natural morphological features, decreasing nutrient input from surrounding agricultural lands) could concurrently increase ecological integrity of both plant and amphibian communities in a wetland. Further, our results have the unexpected effect of making progress toward a more unifying theory of ecological indices.
    Wetlands 06/2015; 35(3). DOI:10.1007/s13157-015-0638-2
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    ABSTRACT: Global climate change will have major effects on wetlands, ecosystems with elevated biodiversity and of enormous economic importance. Using ecological niche modeling and genetic data from three plastid DNA markers sequenced from 96 plants, we studied the salt marsh morning glory, Ipomoea sagittata, to understand the impact that future global warming and increasing sea level may have on aquatic plant conservation, distribution and genetic connectivity on the Gulf of Mexico. Data suggest that genetic variation is low and lacks structure; probable causes include high gene flow, clonal reproduction or use of ineffective molecular markers. Global warming models for its potential distribution in the year 2080 predict a loss of suitable habitat in its northern inland distribution (Cuatro Ciénegas Basin), while its coastal and southern habitats increase. Genetic connectivity decreases along the coast owing to a rise in sea level (Yucatán, Laguna Madre Basin, Usumacinta Basin). Three zones are identified, each requiring a different conservation strategy: 1) A saltwater intrusion zone where most protected areas are; 2) A stability zone which may offer optimal conditions for the creation of protected areas; 3) A zone of range expansion that may cause ecological instability, reducing species richness and promoting colonization by opportunistic species.
    Wetlands 05/2015; DOI:10.1007/s13157-015-0662-2
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    ABSTRACT: The effects of salinity on Taxodium distichum seedlings have been well documented, but few studies have examined mature trees in situ. We investigated the environmental drivers of T. distichum growth along a salinity gradient on the Waccamaw (South Carolina) and Savannah (Georgia) Rivers. On each river, T. distichum increment cores were collected from a healthy upstream site (Upper), a moderately degraded mid-reach site (Middle), and a highly degraded downstream site (Lower). Chronologies were successfully developed for Waccamaw Upper and Middle, and Savannah Middle. Correlations between standardized chronologies and environmental variables showed significant relationships between T. distichum growth and early growing season precipitation, temperature, and Palmer Drought Severity Index (PDSI). Savannah Middle chronology correlated most strongly with August river salinity levels. Both lower sites experienced suppression/release events likely in response to local anthropogenic impacts rather than regional environmental variables. The factors that affect T. distichum growth, including salinity, are strongly synergistic. As sea-level rise pushes the freshwater/saltwater interface inland, salinity becomes more limiting to T. distichum growth in tidal freshwater swamps; however, salinity impacts are exacerbated by locally imposed environmental modifications.
    Wetlands 05/2015; DOI:10.1007/s13157-015-0659-x
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    ABSTRACT: Comprehensive wetland inventories are an essential tool for wetland management, but developing and maintaining an inventory is expensive and technically challenging. Funding for these efforts has also been problematic. Here we describe a large-area application of a semi-automated process used to update a wetland inventory for east-central Minnesota. The original inventory for this area was the product of a labor-intensive, manual photo-interpretation process. The present application incorporated high resolution, multi-spectral imagery from multiple seasons; high resolution elevation data derived from lidar; satellite radar imagery; and other GIS data. Map production combined image segmentation and random forest classification along with aerial photo-interpretation. More than 1000 validation data points were acquired using both independent photo-interpretation as well as field reconnaissance. Overall accuracy for wetland identification was 90 % compared to field data and 93 % compared to photo-interpretation data. Overall accuracy for wetland type was 72 and 78 % compared to field and photo-interpretation data, respectively. By automating the most time consuming part of the image interpretations, initial delineation of boundaries and identification of broad wetland classes, we were able to allow the image interpreters to focus their efforts on the more difficult components, such as the assignment of detailed wetland classes and modifiers.
    Wetlands 04/2015; 35(2):335-348. DOI:10.1007/s13157-014-0621-3