13,399 results match your criteria wetlands


Focused Microbiome Shifts in Reconstructed Wetlands Correlated with Elevated Cu Concentrations Originating from Micronized Copper Azole Treated Wood.

Environ Toxicol Chem 2021 Sep 22. Epub 2021 Sep 22.

U.S. Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessment, Pacific Ecological Systems Division, Corvallis, OR, USA.

Micronized copper azole (MCA) wood preservative formulations include Cu in nano form, and relatively little is known about longer-term effects of Cu leached from MCA into wetland ecosystems. Here we tested the hypothesis that changes in soil microbiomes within reconstructed freshwater wetlands will be associated with exposure to elevated Cu concentrations originating from immersed MCA treated wood stakes. Eight replicate communities were assembled with Willamette Valley flood plain soil, and clonally propagated wetland plants within mesocosms. Read More

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September 2021

DNA metabarcoding reveals the dietary composition in the endangered black-faced spoonbill.

Sci Rep 2021 Sep 21;11(1):18773. Epub 2021 Sep 21.

School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China.

Extensive loss of natural wetlands caused by changes in land use largely diminishes the food resources essential for the survival of migratory waterbirds. Globally, the decline in waterbird populations in East Asia is the most serious, with 64% of these populations showing a decreasing trend. In this study, we applied DNA metabarcoding to examine the spatiotemporal variations and diversities in the dietary compositions of migratory waterbirds in a natural/artificial wetland complex in Asia. Read More

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September 2021

MOLECULAR IDENTIFICATION OF JUVENILE NEOECHINORHYNCHUS SPP. (PHYLUM: ACANTHOCEPHALA) INFECTING OSTRACOD AND SNAIL HOSTS PROVIDES INSIGHT INTO ACANTHOCEPHALAN HOST USE.

J Parasitol 2021 Sep;107(5):739-761

Department of Integrative Biology, 501 Life Sciences West, Oklahoma State University, Stillwater, Oklahoma 74078.

The role of invertebrates in some acanthocephalan life cycles is unclear because juvenile acanthocephalans are difficult to identify to species using morphology. Most reports suggest acanthocephalans from turtle definitive hosts use ostracods as intermediate hosts and snails as paratenic hosts. However, laboratory studies of the life cycle suggest that ostracods and snails are both required hosts in the life cycle. Read More

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September 2021

Effects of different nutritional conditions on accumulation and distribution of Cr in Coix lacryma-jobi L. in Cr-contaminated constructed wetland.

Ecotoxicol Environ Saf 2021 Sep 17;225:112763. Epub 2021 Sep 17.

Agriculture college of Guangxi University, Nanning 530005, China. Electronic address:

In this research, micro Coix lacryma-jobi L. vertical flow constructed wetlands (VFCWs) were set up using domestic sewage (DWS) and 1/2 Hoagland nutrient solution (HNS) as VFCWs water sources. 0, 20 mg L and 40 mg L of Cr (in the form of KCrO) were added into the water sources separately in order to study the response of Coix lacryma-jobi L. Read More

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September 2021

Response of Calamagrostis angustifolia to burn frequency and seasonality in the Sanjiang Plain wetlands (Northeast China).

J Environ Manage 2021 Sep 17;300:113759. Epub 2021 Sep 17.

Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Shengbei Street 4888, 130102, Changchun, China. Electronic address:

Fire is an important disturbance in many wetlands, which are key carbon reservoirs at both regional and global scales. However, the effects of fire on wetland vegetation biomass and plant carbon dynamics are poorly understood. We carried out a burn experiment in a Calamagrostis angustifolia wetland in Sanjiang Plain (Northeast China), which is widespread wetland type in China and frequently exposed to fire. Read More

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September 2021

Biochar from constructed wetland biomass waste: A review of its potential and challenges.

Chemosphere 2021 Sep 14;287(Pt 3):132259. Epub 2021 Sep 14.

School of Environmental Science and Engineering/ Tianjin Key Lab of Biomass Waste Utilization, Tianjin University, Tianjin, 300072, China; School of Science, Tibet University, Lhasa, 850012, Tibet Autonomous Region, China. Electronic address:

Constructed wetland is considered a promising approach for water remediation due to its high efficiency, low operation costs, and ecological benefits, but the large amounts of wetland plant biomass need to be properly harvested and utilized. Recently, wetland plant derived biochar has drawn extensive attention owing to its application potential. This paper provides an updated review on the production and characteristics of wetland plant derived biochar, and its utilization in soil improvement, carbon sequestration, environmental remediation, and energy production. Read More

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September 2021

Effects of the bioelectrochemical technique on methane emission and energy recovery in constructed wetlands (CWs) and related biological mechanisms.

Environ Technol 2021 Sep 20:1-12. Epub 2021 Sep 20.

College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, People's Republic of China.

In this study, effects of bioelectrochemical technique on methane emission and energy recovery, and related mechanism underlying microbial competition were investigated. The results showed that running MFC was beneficial in reducing CH emissions and promoting COD removal rates, regardless of whether the plant roots were located at the anode or the cathode. CH emission was significantly higher in open-circuit reactors (6. Read More

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September 2021

A solution scan of societal options to reduce transmission and spread of respiratory viruses: SARS-CoV-2 as a case study.

J Biosaf Biosecur 2021 Sep 15. Epub 2021 Sep 15.

Department of Zoology, University of Cambridge, The David Attenborough Building, Pembroke Street, Cambridge CB2 3QZ, UK.

Societal biosecurity, measures built into everyday society to minimize risks from pests and diseases, is an important aspect of managing epidemics and pandemics. We aimed to identify societal options for reducing the transmission and spread of respiratory viruses. We used SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) as a case study to meet the immediate need to manage the COVID-19 pandemic and eventually transition to more normal societal conditions, and to catalog options for managing similar pandemics in the future. Read More

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September 2021

Growth, Stoichiometry, and Palatability of From Different Habitats Are Demonstrated by Differentially Expressed Proteins and Their Enriched Pathways.

Front Plant Sci 2021 1;12:733882. Epub 2021 Sep 1.

School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, China.

(L.) Pall., a medicinal and edible plant, has green and red-violet ecotypes that exhibit different phenotypes, tastes, and growth characteristics. Read More

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September 2021

Influence of Environmental Factors on the Variability of Archaeal Communities in a Karst Wetland.

Front Microbiol 2021 3;12:675665. Epub 2021 Sep 3.

School of Biotechnology, Guilin Medical University, Guilin, China.

Archaea are ubiquitous and play an important role in elemental cycles in Earth's biosphere; but little is known about their diversity, distribution, abundance, and impact in karst environments. The present study investigated the effect of environmental factors on the variability of archaeal communities in the sediment of the Huixian karst wetland, the largest karst wetland in South China. Sediment cores were obtained from four sampling sites with different water depths and macrophyte inhabitants in both the winter of 2016 and the summer of 2018. Read More

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September 2021

Impact of industrial effluents on physico-chemical parameters of water and fatty acid profile of fish, Labeo rohita (Hamilton), collected from the Ramsar sites of Punjab, India.

Environ Sci Pollut Res Int 2021 Sep 18. Epub 2021 Sep 18.

Department of Zoology and Environmental Sciences, Punjabi University, Patiala, Punjab, 147002, India.

In this contemporary era, wetlands and the entire aquatic diversity are suffering from major pollution problem. Not only the aggregation of higher population in metropolitan causes the production of plenty of solid, liquid and gaseous wastes, but also the high-technological industries contribute to a mammoth of wastes in the ecosystem. During the process of industrial effluent discharge into the water bodies, the toxic substances available in these wastes can affect the aquatic flora and fauna, resultantly disturbing the entire system and constituting human health hazards indirectly or directly. Read More

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September 2021

Compositions of sequestrated soil carbon in constructed wetlands of Taiwan.

Sci Total Environ 2021 Sep 11;805:150290. Epub 2021 Sep 11.

Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan.

Constructed wetlands are an ecological engineering technology that has been widely applied to treat anthropogenic wastewater. Until now, few studies have focused on soil carbon (C) in the constructed treatment wetlands in tropical regions. Therefore, this study provides insight into the changes in soil C composition of tropically constructed wetlands at different ages. Read More

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September 2021

Criteria for effective regional scale catchment to reef management: A case study of Australia's Great Barrier Reef.

Mar Pollut Bull 2021 Sep 15;173(Pt A):112882. Epub 2021 Sep 15.

C(2)O Consulting coasts climate oceans, Townsville, Australia; ARC Centre for Coral Reef Studies, James Cook University, Townsville, Australia.

Many coastal and marine ecosystems around the world are under increasing threat from a range of anthropogenic influences. The management of these threats continues to present ongoing challenges, with many ecosystems increasingly requiring active restoration to support or re-establish the ecosystem's biological, cultural, social and economic values. The current condition of Australia's Great Barrier Reef (GBR) and its threats, including water quality, climate change and the loss of wetlands, causing the continuing decline in the GBR's ecological condition and function, has received global attention. Read More

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September 2021

Efficient utilization of Iris pseudacorus biomass for nitrogen removal in constructed wetlands: Combining alkali treatment.

Environ Pollut 2021 Sep 13;291:118170. Epub 2021 Sep 13.

School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.

Aquatic plant biomass like Iris pseudacorus can be used as electron donor to improve denitrification performance in subsurface constructed wetlands. However, the phenomenon that the nitrogen removal rate declined in the terminal stage restricted the utilization of litters. In terms of this problem, this study investigated the performance of the used biomass through alkali treatment on nitrogen removal and analyzed the effect of alkali treatment on the component and structure of biomass and microbial community. Read More

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September 2021

Substantial long-term loss of alpha and gamma diversity of lake invertebrates in a landscape exposed to a drying climate.

Glob Chang Biol 2021 Sep 17. Epub 2021 Sep 17.

Harry Butler Institute & Environmental & Conservation Sciences, Murdoch University.

Many regions across the globe are shifting to more arid climates. For shallow lakes, decreasing rainfall volume and timing, changing regional wind patterns and increased evaporation rates alter water regimes so that dry periods occur more frequently and for longer. Drier conditions may affect fauna directly and indirectly through altered physicochemical conditions in lakes. Read More

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September 2021

Complete chloroplast genome of (Isoetaceae), the Endangered quillwort in China.

Mitochondrial DNA B Resour 2021 13;6(10):2908-2909. Epub 2021 Sep 13.

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, The National Orchid Conservation & Research Center of Shenzhen, Shenzhen, Guangdong, China.

Hand.-Mazz. is an Endangered quillwort living in plateau wetlands in China. Read More

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September 2021

Modeling the impacts of plants and internal organic carbon on remediation performance in the integrated vertical flow constructed wetland.

Water Res 2021 Sep 7;204:117635. Epub 2021 Sep 7.

Department of Environmental Informatics, Helmholtz Centre for Environmental Research, UFZ, Leipzig, Germany.

The integrated vertical flow (IVF) constructed wetland consists of two or more chambers with heterogeneous flow patterns and strong aeration capability, possesses favorable remediation performance. The Constructed Wetland Model No.1 (CWM1) embedded in the OpenGeoSys # IPHREEQC was applied to investigate the wetland plant effects on treatment efficiency. Read More

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September 2021

Efficiency of saturated vertical-flow filters planted with reeds for passive wastewater treatment.

Environ Technol 2021 Sep 16:1-36. Epub 2021 Sep 16.

Laboratoire de chimie physique et microbiologie pour les matériaux et l'environnement, LCPME, UMR 7564 CNRS, Université de Lorraine, 405, rue de Vandœuvre, 54600 Villers-lès-Nancy, France.

A vertical flow unit containing 4 filters filled with shale was used to study the removal of phosphorous, nitrogen and organic matter of an urban residual wastewater during a period of 90 days. The influence of both the shale granulometry and the plant density of were studied. The decrease of the shale granulometry led to a significant improvement of the all the measured parameters, while the presence of plants did only influence the phosphate retention with a lower extent. Read More

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September 2021

Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration.

Mov Ecol 2021 Sep 15;9(1):46. Epub 2021 Sep 15.

School of Geography and Sustainable Development, Irvine Building, University of St Andrews, North Street, KY16 9AL, St Andrews, Scotland, UK.

Background: Different theories suggest birds may use compass or map navigational systems associated with Earth's magnetic intensity or inclination, especially during migratory flights. These theories have only been tested by considering properties of the Earth's magnetic field at coarse temporal scales, typically ignoring the temporal dynamics of geomagnetic values that may affect migratory navigational capacity.

Methods: We designed a simulation experiment to study if and how birds use the geomagnetic field during migration by using both high resolution GPS tracking data and geomagnetic data at relatively fine spatial and temporal resolutions in comparison to previous studies. Read More

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September 2021

Evidence for interannual persistence of infectious influenza A viruses in Alaska wetlands.

Sci Total Environ 2021 Sep 3;803:150078. Epub 2021 Sep 3.

Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA. Electronic address:

Influenza A viruses (IAVs) deposited by wild birds into the environment may lead to sporadic mortality events and economically costly outbreaks among domestic birds. There is a paucity of information, however, regarding the persistence of infectious IAVs within the environment following deposition. In this investigation, we assessed the persistence of 12 IAVs that were present in cloacal and/or oropharyngeal swabs of naturally infected ducks. Read More

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September 2021

Leveraging Google Earth Engine platform to characterize and map small seasonal wetlands in the semi-arid environments of South Africa.

Sci Total Environ 2021 Sep 4;803:150139. Epub 2021 Sep 4.

Institute for Water Studies, Department of Earth Science, University of the Western Cape, Private Bag X17, Bellville, 7535 Cape Town, South Africa.

Although significant scientific research strides have been made in mapping the spatial extents and ecohydrological dynamics of wetlands in semi-arid environments, the focus on small wetlands remains a challenge. This is due to the sensing characteristics of remote sensing platforms and lack of robust data processing techniques. Advancements in data analytic tools, such as the introduction of Google Earth Engine (GEE) platform provides unique opportunities for improved assessment of small and scattered wetlands. Read More

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September 2021

Rainfall driven and wild-bird mediated avian influenza virus outbreaks in Australian poultry.

BMC Vet Res 2021 Sep 14;17(1):306. Epub 2021 Sep 14.

Centre for Integrative Ecology, School of Life & Environmental Sciences, Deakin University, 75 Pigdons Road, 3216, Geelong, VIC, Australia.

Globally, outbreaks of Avian Influenza Virus (AIV) in poultry continue to burden economies and endanger human, livestock and wildlife health. Wild waterbirds are often identified as possible sources for poultry infection. Therefore, it is important to understand the ecological and environmental factors that directly influence infection dynamics in wild birds, as these factors may thereby indirectly affect outbreaks in poultry. Read More

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September 2021

Remediation of algal cells, PO, and NO from eutrophic wastewater using Echinodorus cordifolius in zigzag-horizontal subsurface constructed wetlands.

J Environ Manage 2021 Sep 11;300:113720. Epub 2021 Sep 11.

School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand. Electronic address:

The pollutant removal efficiency of traditionally constructed wetlands (CWs) is often limited due to low interaction time between wastewater and the CW matrix (plants, microbes, and substrates). A zigzag-horizontal subsurface flow constructed wetland with effluent recirculation (Z-HSSF + ER) was developed to improve removal efficiency. Echinodorus cordifolius plants were used in this study. Read More

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September 2021

In situ arsenic speciation at the soil/water interface of saline-alkaline lakes of the Pantanal, Brazil: A DGT-based approach.

Sci Total Environ 2021 Sep 3;804:150113. Epub 2021 Sep 3.

Institute of Chemistry, University of Campinas, UNICAMP, 6154, 13083-970 Campinas, SP, Brazil. Electronic address:

Arsenic (As) is a naturally occurring element in the Earth's crust, exhibiting toxicity towards a wide range of living organisms. Its properties and environmental dynamics are strongly regulated by its speciation, and the species As(III) and As(V) are the most commonly found in environmental systems. Recently, high concentrations of As were found in saline-alkaline lakes of the Pantanal (Brazil), which is the largest wetland area in the world. Read More

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September 2021

Seeing in the swamp: hydrogen sulfide inhibits eye metabolism and visual acuity in a sulfide-tolerant fish.

Biol Lett 2021 09 15;17(9):20210329. Epub 2021 Sep 15.

Department of Integrative Biology, University of Guelph, Guelph, Canada.

In fish, vision may be impaired when eye tissue is in direct contact with environmental conditions that limit aerobic ATP production. We hypothesized that the visual acuity of fishes exposed to hydrogen sulfide (HS)-rich water would be altered owing to changes in cytochrome c oxidase (COX) activity. Using the HS-tolerant mangrove rivulus (), we showed that a 10 min exposure to greater than or equal to 200 µM of HS impaired visual acuity and COX activity in the eye. Read More

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September 2021

Fluopyram removal from agricultural equipment rinsing water using HSF pilot-scale constructed wetlands.

Environ Sci Pollut Res Int 2021 Sep 14. Epub 2021 Sep 14.

Laboratory of Ecological Engineering and Technology, Department of Environmental Engineering, School of Engineering, Democritus University of Thrace, 67100, Xanthi, Greece.

Fluopyram is a novel broad-spectrum fungicide with nematocidal activity, and as an extensively used pesticide, it could cause toxicity in nontarget organisms. The aim of this study was to explore the efficiency of five horizontal subsurface flow (HSF) constructed wetlands (CWs) to remove fluopyram from rinsing water produced during the cleaning of pesticide spraying equipment. Four CWs, namely WG-R, WG-R-P, WG-C, and WG-U, contained fine gravel as porous media. Read More

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September 2021

Determining vegetation metric robustness to environmental and methodological variables.

Environ Monit Assess 2021 Sep 14;193(10):647. Epub 2021 Sep 14.

Department of Natural Resources and Environmental Sciences, University of Illinois At Urbana-Champaign, 1102 S. Goodwin Ave, Urbana, IL, 61801, USA.

Land managers need reliable metrics for assessing the quality of restorations and natural areas and prioritizing management and conservation efforts. However, it can be difficult to select metrics that are robust to sampling methods and natural environmental differences among sites, while still providing relevant information regarding ecosystem changes or stressors. We collected herbaceous-layer vegetation data in wetlands and grasslands in four regions of the USA (the Midwest, subtropical Florida, arid southwest, and coastal New England) to determine if commonly used vegetation metrics (species richness, mean coefficient of conservatism [mean C], Floristic Quality Index [FQI], abundance-weighted mean C, and percent non-native species cover) were robust to environmental and methodological variables (region, site, observer, season, and year), and to determine adequate sample sizes for each metric. Read More

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September 2021

Monitoring an ungagged coastal marsh to analyze the salinity interaction of the marsh with Lake Erie.

Environ Monit Assess 2021 Sep 13;193(10):645. Epub 2021 Sep 13.

DSI, LLC, Edmonds, WA, USA.

Phragmites growth in a marsh watershed due to increased salinity has been a crucial issue across the world. The objective of this study was to investigate the salinity movement in the ungagged Mentor Marsh of Ohio, USA, where the salinity had increased due to a number of potential sources causing a decline in the native vegetation and leading to the increased invasive phragmites growth. In this study, we conducted a detailed bathymetric survey and established several monitoring stations to record hourly environmental data in Mentor Marsh. Read More

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September 2021

Corrigendum: Distribution and Diversity of Comammox in Coastal Wetlands of China.

Front Microbiol 2021 26;12:731921. Epub 2021 Aug 26.

Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai, China.

[This corrects the article DOI: 10.3389/fmicb.2020. Read More

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Improvement in salt tolerance of Iris pseudacorus L. in constructed wetland by exogenous application of salicylic acid and calcium chloride.

J Environ Manage 2021 Sep 9;300:113703. Epub 2021 Sep 9.

College of Environmental Science and Engineering, Qingdao University, Qingdao, China. Electronic address:

Wetland plants play a major role in the process of wastewater treatment in constructed wetlands (CWs). The inhibitory effect of salt stress on plants may reduce the performance of CWs. In this study, salicylic acid (SA) and/or calcium ion (Ca) were used for root pretreatment to alleviate the salt stress in Iris pseudacorus L. Read More

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September 2021