Articles tagged with Wetlands
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A UK feasibility study suggests that a carbon credit scheme could support private investment in saltmarsh restoration, providing vital habitat for wildlife and addressing the climate crisis. The introduction of a Saltmarsh Code would pave the way for projects with public financing to contribute to restoration efforts.
A global study led by the University of Surrey reveals that green spaces like parks, wetlands, and botanical gardens can cool city air significantly during heatwaves. The study found that bigger parks have a greater cooling effect, and connecting green spaces into 'green corridors' can unlock greater benefits.
Researchers from Berkeley Lab found significant increases in wetland methane emissions in Arctic and Boreal ecosystems, with emissions rising by approximately nine percent since 2002. Temperature and plant productivity were identified as major drivers of these changes, highlighting the urgent need to quantify natural sources of methane.
Researchers found that tidal wetlands are not always less hospitable to methane-producing microbes as sea levels rise, with some sites emitting high levels of methane despite moderate saltwater influx. The study's results suggest complex factors governing methane emissions in natural landscapes, complicating predictions and models.
A new study published in Geophysical Research Letters sheds light on methane emissions from Arctic lakes and wetlands. Researchers found that small, unmapped lakes contribute only about 3% of the region's methane emissions, significantly reducing the cumulative amount previously thought to be emitted.
Researchers developed a detection method for infectious bird flu virus in wetlands frequented by waterfowl. The method successfully detected HPAI virus strains in four out of four wetland sites in April, but not from a lake, highlighting the need for improved RNA detection techniques.
Research reveals Eurasian otters in Hong Kong were once more widespread and common, but have declined drastically since the 1930s due to lowland wetlands destruction. The species' critical habitat, Deep Bay wetlands, is under threat from government-led mega development plans.
Re-wetting southern peatlands along the US south Atlantic coast could significantly boost carbon storage and reduce greenhouse gas emissions. A new Duke University study reveals that maintaining water levels between 20-30 cm below the local water table can increase CO2 storage by up to 90%.
A new study published in Nature warns that coastal wetlands and coral reef islands are unlikely to survive at current rates of sea-level rise exceeding 7 millimeters per year. The study suggests that global warming must be limited to less than 2 degrees Celsius for these ecosystems to have a chance.
A new UCF project aims to examine a method to keep carbon from escaping soils and trapping heat in Earth's atmosphere. Researchers will focus on histosols in the Everglades Agricultural Area, adding fine minerals to prevent carbon release.
New research from University of Southern Denmark warns that flooding low-lying areas with freshwater can lead to higher greenhouse gas emissions than using saltwater. Standing water is particularly problematic, as it allows methane-producing bacteria to thrive and emit significant amounts of methane into the atmosphere.
Researchers propose employing freshwater delivery techniques from inland wetlands to mitigate coastal salinification. Alternative water sources like treated effluent and stormwater may support riparian ecosystems in urban settings. Techniques can help restore function and resilience in the face of climate change.
Researchers found that boreal wetlands are a substantial source of isoprene and terpenes, contributing to the formation of secondary organic aerosol and ozone. The emissions from these wetlands exhibit a strong exponential temperature response, making them a significant concern in a warming climate.
Researchers from the University of South Florida and EPA developed a new classification system to target wetland restoration and protection. The system categorizes freshwater wetlands into four classes based on their proximity to streams, demonstrating the effects of wetlands on water quality at a continental scale.
A study from the University of East Anglia found that environmental impact assessments often fail to account for species movement between sites, leading to underestimated impacts on wildlife. The research highlights a planned airport development in Portugal that could affect over 10 times the number of Black-tailed Godwits estimated by...
A new study published in Nature Climate Change reveals that pristine wetlands are currently a greenhouse gas sink, but this function will be reduced by over half in response to a 1.5-2°C temperature increase. Warming promotes net methane and nitrous oxide emissions from these ecosystems, posing a positive feedback on global warming.
A study analyzing over 300,000 European vegetation plots found that global climate gradients have relatively weak correlations with local plant community characteristics. The effects of climate change on plant species depend heavily on local factors such as soil conditions and microclimate.
A new study reveals that whooper swans thrive in UK nature reserves, with survival rates significantly higher and population growth up to 6% annually. This could lead to a doubling of the species' wintering population in the UK by 2030.
A study by the University of Exeter found that flamingos form groups based on their individual personalities, with birds of similar traits spending more time together. This complex social behavior could help improve the welfare of captive flocks and provide insights into the evolution of bird societies.
Estuaries along the Atlantic coast and eastern Gulf of Mexico are expected to experience significant increases in nutrient loading, posing risks for harmful algal blooms and ecosystem health. The study identified regions with high adaptive capacity as having more resources to mitigate these effects.
Researchers argue that polders are an important part of China's water heritage, reflecting the country's long history of water management. Over 2,500 years, polders have evolved in response to changing societal needs, adapting to agricultural modernisation and urban encroachment.
A recent study published in Nature highlights the underestimation of global wetland loss over the past 300 years. The research found that temperate river floodplains and tropical regions are disproportionately affected, while remote boreal-arctic peatlands remain relatively unharmed.
The Stanford-led study found that the area of wetland ecosystems has declined 21-35% since 1700 due to human intervention, with at least 1.3 million square miles lost globally. This contradicts previous estimates and suggests a need for revised conservation strategies.
Researchers found that small, disconnected wetlands are twice as effective in catching pollutants like nitrogen and phosphorus. These isolated wetlands can protect lake or river ecosystems from pollution, improving water quality and biodiversity.
Australian scientists developed virtual models to reveal a crucial link between natural flooding and the extinction risk of endangered southern bell frogs. The study found that modern river regulation dramatically increases extinction risk in smaller wetlands.
A new AI deep learning model for mapping wetlands has been developed by Chesapeake Conservancy with 94% accuracy. The model uses freely available data to map high-resolution wetlands in the US, providing a cost-effective solution for natural resource managers and companies.
Researchers investigated hydrometeorological factors in alpine wetlands during warm and cold seasons. They found that depth of frozen soil averages 20-40 cm, with sensible heat flux greater before solar noon in the cold season. Temperature and longwave radiation are key control factors for heat exchange.
A recent LSU study found significant land formation in two freshwater diversions on the state's coastline, including a 2-4.8 sq km increase in area over 17 years. The Davis Pond Diversion showed a dynamic environment with dramatic change, while the Caernarvon Diversion had no meaningful detectable changes.
Researchers found that summer rainfall and autumn-winter dry days are increasing, leading to fluvial discharge and sediment load in rainy seasons and water deficits in dry seasons. The Pantanal's complex geomorphology, including mega-fans and self-affine landforms, makes it susceptible to anthropic interference.
A recent study analyzing Amazon Rainforest fires from 2003-2020 reveals that most fires are caused by uncontrolled human use of fire for agriculture and deforestation. The study found that Brazil accounted for an average of 73% of detected fires, with pasturelands and natural grasslands being the main burned areas.
A multi-institutional team led by LSU researchers will investigate factors affecting natural methane emissions in Louisiana's coastal wetlands. The study aims to improve understanding of methane cycling processes, which are poorly understood and affect the conditions creating methane emissions.
Researchers found that the Southern cattail plant can scavenge up to 34 times more manganese from contaminated soil than other plants. The study suggests its potential for sustainable rehabilitation of areas affected by iron mine tailings, demonstrating its high efficiency in phytoremediation.
A three-year study in northeastern Illinois and northwestern Indiana found that emergent wetlands support many wetland bird species, regardless of urbanization levels. The research also found that smaller wetlands can be essential habitats for some species, while others prefer larger sites.
New research from the University of Waterloo suggests that relying on stormwater management ponds to restore wetlands is unsustainable and lacks critical ecosystem services. The study found a low proportion of wetlands left in areas with high pond creation rates, posing an environmental challenge.
A new study analyzing 72 lakes in four large Neotropical wetlands of Brazil reveals that human impacts on biodiversity compromise wetland multifunctionality. Strong associations between aquatic organism diversity and wetland functioning were found, highlighting the crucial role of species richness in driving ecosystem health.
A new panda species, Agriarctos nikolovi, has been discovered in Bulgaria, which may have been Europe's last known giant panda. The fossilized teeth, found in the late 1970s, suggest that this ancient panda consumed a largely vegetarian diet, unlike modern pandas.
Scientists studied mute and whooper swans, finding a trade-off between aggression and rest. The study suggests that providing enough foraging spots can reduce the need for aggression, allowing birds more time to rest.
Researchers have discovered that chanchita, a cichlid fish native to South America, has the highest cold tolerance of all non-native species in Florida, allowing it to survive central and possibly northern Florida's winters. Chanchitas exhibit parental care behavior, with both parents guarding eggs and young.
A new modeling study predicts that coastal marsh migration will release more carbon into the atmosphere, exacerbating climate change. As marshes move inland due to sea level rise, they convert land from a net carbon sink to a net carbon source, releasing stored carbon into the air.
Great Salt Lake wetland plants can accumulate hazardous metal pollution, which can be passed up the food chain to herbivorous insects. This study found high concentrations of lead, mercury, and other metals in plant tissues, threatening terrestrial ecosystems.
A new study reveals that tidal flats in the southeastern US are under pressure from urbanization, leading to erosion and loss of these critical ecosystem guardians. The research highlights the need for sustainable management plans to mitigate the impacts of urban expansion on coastal environments.
A 10-year citizen science study found that UK bumblebees need varied habitats to thrive. The study identified specific habitat requirements for different species, including arable areas and semi-natural land, highlighting the need for targeted conservation efforts.
A new study published in Science Advances reveals that the environmental stress of too much water wipes out the plant growth benefits of higher CO2 levels. Rising sea levels have caused the effects of increased CO2 to disappear in a 33-year field experiment, highlighting the critical need for conservation and adaptation efforts.
Researchers investigated the impact of seasonal variations in methanogenic and methanotrophic communities on CH4 emissions in wetlands. They identified a keystone species that plays a pivotal role in mediating CH4 fluxes, providing substantial evidence for understanding microbial driving mechanisms.
A new study reveals that innovative restoration practices can replicate natural landscape-building processes in wetlands, enhancing their carbon-storing potential. Successful restorations require dense plant clumps or large areas restored in one go to mimic the plants' landscape-forming properties.
Researchers found that Australian native rushes, including Phragmites australis, can significantly remove PFAS chemicals from contaminated surface water. The study used floating wetlands as a mechanism for plants to grow hydroponically and showed a 42-53% removal of legacy PFAS contaminants.
A new study by Resources for the Future and Columbia University finds that losing a hectare of wetlands can cost society an average of $1,900 in flood damages per year. In developed areas, this figure rises to over $8,000. The research highlights the importance of preserving wetlands for flood mitigation.
Researchers found a wetland plant capable of reducing PFAS in soil and water, improving filtration efficiency. The study suggests using floating reed beds to increase PFAS removal rates, highlighting the potential for phyto-extraction as a remediation strategy.
Researchers discover new species of burrowing frog, Synapturanus danta, in Amazon peatlands. The frogs' unique calls and adaptations make them an important part of their underground ecosystem, contributing to nutrient cycling and soil structure.
A new study from the University of Waterloo provides a roadmap for faster improvements in water quality by tackling nitrogen legacies. The research recommends six steps to address this critical issue, which has persisted for decades due to excess nitrogen fertilizers.
Researchers found that microbes in the soils generate methane gas, which is then processed as it moves through dead trees. The findings shed light on the sources of greenhouse gas emissions from ghost forests, a growing concern due to rising sea levels.
Southern Ontario's wetlands filter out phosphorus and sediments from water, providing $4.2 billion worth of sediment filtration services each year. This is the first economic valuation study to separate the values of major wetland types, with marshes being the most valuable for sediment filtration.
A recent study by Duke University researchers identified a critical salinity threshold of 265 parts per million sodium for understory plants in coastal wetlands. Above this level, the marsh floor undergoes significant changes, with rushes and reeds dominating over salt-tolerant plants.
A new study confirms that emissions from anthropogenic sources, including agriculture, landfill/waste, and fossil fuel industry, are the driver for the renewed rise of potent greenhouse gas since 2007. Global wetlands play a minor role with less than 20% contribution to atmospheric methane.
Despite over 200 restored wetlands in Denmark, botanical diversity remains low, with only 9.5 species per four square meters found in the studied areas. High nutrient input from agriculture continues to affect plant species dispersal and immigration, making it a significant barrier to increased biodiversity.
Research reveals that tree root systems are a significant source of methane emissions in wetland areas, including the Amazon basin. The study suggests that existing models may be underestimating methane emissions by neglecting the role of trees.
A new study using methane stable isotopes and thousands of emissions scenarios confirms that agricultural emissions are the primary driver of atmospheric methane increases. Human activities account for 60% of global methane emissions, with significant contributions from agriculture, landfills, and oil and gas industries.
A global meta-analysis supports the U.N.'s goal of restoring habitats, finding mangrove restoration performs better than unvegetated mud, sand flats or abandoned aquaculture ponds. Restored mangroves yield significant ecological benefits and economic value, making them an ecologically and economically sound choice.
Airborne pollen concentrations in Betula microphylla-dominated wetland of Ebinur Lake, Xinjiang, are influenced by meteorological factors such as temperature, precipitation, wind speed, and direction. The study found that airborne pollen composition corresponds to local vegetation and reflects long-distance transported pollen taxa.
Researchers found fish, reptiles, and mammals made up the jaguar's diet, with aquatic prey providing energy to burn or play. The high density of jaguars was attributed to abundant aquatic subsidies in the region.