Articles tagged with Wetlands
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Researchers used radiokrypton dating to study the origin and flow of freshwater and saltwater in the Floridan Aquifer. The study found that some samples contained 40,000-year-old saltwater from just before the last glacial maximum, highlighting the impact of rising sea levels on coastal aquifers.
A new study by ANU researchers has found human impacts such as deforestation and mining have significantly transformed Lake Kutubu's algal and geochemical compositions. The lake is now showing signs of ecosystem collapse, including plumes of chemicals and health issues for local communities.
Researchers at Binghamton University found that wood frog eggs laid later in the breeding season are less resilient to road salt pollution. The study highlights the complex effects of climate change on amphibian breeding, which may lead to population declines in vulnerable species.
A systematic review of 169 conservation projects worldwide reveals that Indigenous and local communities are crucial for successful nature conservation. The study found that equitable conservation approaches, empowering local communities, yield positive outcomes for both humans and the environment. However, complex factors such as comm...
A new study assesses the impacts of sea level rise and wetland change on storm surge flooding in the Chesapeake Bay region. The results show that even relatively weak storms in 2100 could have a greater impact than high-intensity storms today, with significant property damage and effects on people.
A study by the University of Helsinki found raccoon dogs to be a significant threat to ground-nesting bird populations in Northern Europe. The invasive species was found to destroy nests and prey on farmed mallard eggs, contributing to the decline of waterbird populations.
Research in the southern Murray-Darling Basin has found a downward spiral in water availability, driven by accelerated changes in climate. Since the 1990s, cool season rainfall and river heights have significantly decreased due to increased evaporation and changed precipitation patterns.
Researchers studied six species of amphibian at Slimbridge Wetland Centre during COVID-19 lockdowns and partial reopenings. Amphibian activity varied depending on the number of visitors, with some species more visible when there were fewer people around.
Researchers find constructed wetlands are most cost-effective way to reduce nitrate and sediment loads in large streams and rivers. Wetlands slow down water and contain vegetation that processes nutrients, removing excess nitrates from the water.
Researchers investigated aboveground biomass and its spatial distribution pattern of herbaceous marsh vegetation in China, revealing regional variations in biomass density and total biomass. The study provides a scientific basis for carbon sequestration evaluation and adaptive management of marsh wetlands in China.
A new study found that mangrove forests in Florida suffered unparalleled dieback after Hurricane Irma due to human-made obstacles and changes in natural topography. The research team identified potential explanations, including restricted water flow between areas, which can lead to extreme conditions and degradation of wetland vegetation.
Researchers analyzed sediment cores revealing that pre-Columbian societies used controlled fires and water management techniques from at least 3,500 years ago. This predates changes caused by cattle and new technologies in the region.
A new study warns that major reductions in wetlands will disproportionately affect Afrotropical migratory waterbirds. The research highlights the urgent need for a holistic conservation strategy to address climate change impacts.
A new USGS study reveals lower reproductive rates and higher movement patterns among piping plovers in the Northern Great Plains, suggesting a higher extinction risk than previously assumed. Habitat quality appears to be key, with better habitats supporting improved reproductive output.
Researchers at UMD have developed a new camera allowing for the imaging of wetland soil activity in real time, enabling the calculation of iron reduction rates. This technology opens up new research avenues in soil science, providing a better understanding of wetland soil behavior and its potential applications.
Researchers used NASA satellite images to map changes in northwestern Belize's landscape over four decades, finding significant losses of forest and wetlands. Conservation efforts in protected areas helped maintain forests, which house native flora and fauna and Maya structures.
A global study estimates that nature processes over 2 million cubic meters of human waste annually, equivalent to 41.7 million tons, in 48 cities containing about 82 million people. This natural process contributes significantly to sanitation services, worth approximately $4.4 billion per year.
A novel approach by a West Virginia University researcher aims to gauge restoration success in wetlands. By measuring shrubs at ground level, he advances the criteria for assessing long-term restoration potential, providing a better indication of success.
Scientists have discovered that ancient wetlands experienced increased methane cycling during the Paleocene-Eocene Thermal Maximum, an ancient global warming event. This finding suggests that rapid global warming can disrupt methane cycling in wetlands, potentially exacerbating climate change.
A massive paleo-tsunami struck near ancient Tel Dor between 9,910 to 9,290 years ago, erasing evidence of low-lying coastal villages in the area. The tsunami deposit was discovered through underwater excavation and modeling, with estimated wave heights ranging from 16 to 40 meters.
Researchers found that 84% of newly-created and recolonized beaver ponds remained occupied for more than a year. However, when a wolf kills the beaver, no pond remains active. This study suggests wolves can alter wetland creation without changing beaver abundance or behavior.
Researchers found that rice paddies with a history of being wetlands support more wetland plant species. Land consolidation and agricultural abandonment negatively impact biodiversity. The study's findings may inform conservation efforts and promote sustainable agriculture in the Asian monsoon region.
A new review highlights the severe impacts of drought on global wetland soils, leading to irreversible changes and decreased water quality. The study emphasizes the need for better understanding and protection of these critical ecosystems, which support biodiversity and carbon storage.
Conservation projects that prioritize land-dwelling species can have a significant impact on freshwater ecosystems, increasing benefits by up to 600%. The research found that targeting both terrestrial and aquatic species simultaneously can lead to substantial gains in freshwater conservation. This approach requires considering the con...
A study found that urban wood storks fared better than their natural counterparts during suboptimal conditions, exploiting urban resources to improve reproductive performance. They switched to anthropogenic food sources, including trash and amphibians, to supplement their diets.
A new federal rule leaves millions of miles of unconnected US streams and acres of wetlands unprotected, potentially undermining decades of taxpayer investment in improving water quality. The move risks higher floods, loss of biodiversity, and threats to drinking water and recreational fishing.
A new study reveals that dehydration increases amphibian vulnerability to climate change, with rising temperatures and dry conditions posing a dual threat. By 2080s, habitats may become too hot or dehydrating for many species, forcing them to adapt by moving between habitats more often.
A team of scientists investigated an unusual wetland soil in California, discovering its peculiar properties that misled initial classification. By analyzing color, water content, vegetation, and chemical composition, they applied a new method to accurately classify the soil as hydric, crucial for conservation.
Researchers found that fish eggs can survive gut passage in ducks, with 0.2% of eggs intact after 24 hours. This process may play a key role in the dispersal of invasive fish species, such as Prussian carp, across wide geographic areas.
A study by Curtin University found that tiger snakes living in Perth's urban wetlands are accumulating toxic heavy metals in their livers, suggesting habitat contamination. The snakes' bioaccumulation of heavy metals through eating frogs indicates the wetlands' pollution levels are a concern for local biodiversity.
A new study suggests that northern pintails are caught in an ecological trap, favoring cropland over scarce alternative nesting habitat, leading to nest failures and population decline. Climate change and drainage practices also contribute to their vulnerability.
A Duke University study reveals that low-severity fires shield peatland soils from decay, preserving carbon and slowing down its release into the atmosphere. This 'crème brulee effect' enhances long-term carbon retention, with implications for managing peatlands and addressing climate change.
Researchers have quantified over a century of changes in Cook County, finding 80% wetland loss and species extinctions. The study aims to inform restoring aquatic ecosystems' health.
A new study using DNA metabarcoding reveals the dynamics of metacommunities in a threatened boreal wetland, detecting a broader range of biodiversity per sample compared to traditional methods. The study found that patterns of community assembly were nearly random, suggesting a strong role of randomness in the metacommunity.
Researchers found that whooping crane conservation efforts may inadvertently put the species at risk due to large flock formation. The birds gather in proportionally larger groups as they lose their habitat, increasing the potential impact of disease outbreaks or extreme weather events on a substantial portion of the population.
Researchers at Utah State University developed a computer model to help manage wetland, floodplain and aquatic habitats. The Watershed Area of Suitable Habitat systems model, known as WASH, identifies optimal water allocation strategies to improve habitat quality and area.
A new study estimates the monetary value of wetlands' property-protecting services, with one square kilometer valued at $1.8 million annually. Coastal counties with more wetlands experience less property damage from hurricanes and tropical storms.
US counties with more wetlands experienced significantly less property damage from hurricanes and tropical storms over a recent 20-year period. Coastal wetlands serve as natural levees, reducing property damage by up to $430 million in Florida since 1996.
A study published in Frontiers reveals China's intertidal wetlands have lost nearly 40% of their area over the past four decades due to anthropogenic development and sea level rise. The loss has significant ecological and economic implications, making conservation a top priority.
Researchers discovered diverse fungal communities associated with camas seeds and roots, which may support its establishment in restored habitats. These findings could help scientists restore native prairie and wetland ecosystems in the Pacific Northwest.
A study by Bruce E. Lyon and Daizaburo Shizuka found that juvenile ornamentation in American coots helps parents determine which chicks will benefit most from care and nutrition. The researchers discovered that later-hatched, redder chicks received preferential treatment and increased food portions from their parents.
Researchers will study isolated wetlands in the Delmarva Peninsula to understand how hydrology influences wetland carbon export and emissions. The project aims to inform wetland management practices for conservation and restoration.
A long-term study found that five consecutive years of drought effectively ended copperhead snakes' reproductive output. Snakes produced significantly fewer offspring during and after the drought, with no pregnant females recorded in the year following the drought's end.
Historical regime shifts in coastal wetlands of northeastern Florida indicate mangrove expansion is linked to reduced extreme cold events. Climate model projections suggest increasing temperatures and suitability for mangroves through the end of the 21st century.
The ancient Maya created massive agricultural features in wetlands to respond to population and environmental pressures. This study reveals that the Maya had earlier, more intensive and more wide-ranging anthropogenic impacts on globally important tropical forests than previously known.
Researchers discovered large-scale polycultural agricultural systems for growing crops like avocado and maize in Maya wetlands. The findings suggest these fields were adaptations to major shifts in Maya civilization as food demand increased during the Late Classic period.
A new method for detecting manatee calls could help restore populations of the endangered Antillean manatee. By analyzing underwater recordings, scientists can estimate manatee numbers and understand their habitat use in turbid waters.
A newly discovered bacterium, A6, can break down per- and polyfluoroalkyl substances (PFAS) by transferring electrons from ammonium or hydrogen gas, rendering them harmless. The degradation process could potentially biodegrade PFAS in contaminated soil and groundwater under appropriate environmental conditions.
A recent study published in Diversity and Distributions found that beaver-built ponds have a higher biodiversity than other wetlands in the same region, with 50% more species. This research suggests that reintroducing beavers to their native habitat could benefit wider biodiversity and help solve the freshwater biodiversity crisis.
A new study finds that Mississippi River diversions lead to more land loss rather than gain due to increased nutrient availability and flooding. The research suggests that the $5 billion planned future diversions may do more harm than good through unintended consequences.
A recent study found that termite activity in wetlands improves soil structure and nutrient content. Termites help turn dead trees into valuable organic matter, increasing crucial soil carbon content.
A new study reveals that approximately 85% of historical tidal wetlands in California, Oregon, and Washington have been lost. The research highlights the importance of restoring these habitats, which are critical nurseries for juvenile salmon and steelhead.
A recent study reveals that non-native wetland plants have a broader ecological footprint, taking over regions and negatively affecting bird and insect populations. Dominant non-natives outcompete native species, reducing species richness and abundance more than dominant natives do.
Researchers found that hydrology plays a greater role in methane emissions than plant species, highlighting the importance of wetland design. Constructed wetlands can be managed to reduce methane emissions by creating favorable conditions for oxygen delivery and soil saturation.
Researchers reconstructed past moisture conditions and vegetation histories to understand how Arctic wetlands have responded to warming temperatures over the last century. The study found that under certain conditions, Arctic wetlands may transition into peatlands, creating new natural carbon storage systems.
Researchers have documented the oldest known living trees in eastern North America and the longest-lived wetland species in the world. The ancient bald cypress trees are estimated to be around 2,624 years old and were discovered in a forested wetland preserve along the Black River in North Carolina.
A new Yale study uncovers key relationship between storm events, ecology, and topography in moderating greenhouse gas release from rivers and streams. Concentrations of three greenhouse gases increase during rainstorms in wetland streams but decrease or remain constant in forested streams.
Researchers at UC used LIDAR technology to discover ancient farm fields in Mexico's Yucatan Peninsula, indicating surplus crop production. The discovery supports the idea of a complex market economy among the ancient Maya civilization.
A new study finds that shoreline erosion can transform freshwater wetlands from carbon-storage pools to carbon sources, with a large mismatch between accumulation and erosion rates. The researchers developed a model to assess the impact of freshwater coastal erosion on global carbon budgets.
A recent study found that climate change is reducing waterbird habitats across the Great Basin, resulting in fewer birds in the region. The research, published in Scientific Reports, examined temperature and precipitation data from over a century and compared it with 50 years of bird surveys.