Articles tagged with Forests
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Research developed by Oregon State University enables land managers to take a risk-analysis approach to new wildfire reality. The tools provide analytics that integrate fire risk with management difficulties and opportunities, allowing for preplanning responses that balance risk with success. This approach aims to improve outcomes and ...
Researchers used tree-ring dating to determine when trees were cut down for construction and what the forests were like before European immigration. They found evidence of forest regrowth after Native American population decreases, shedding light on a previously poorly understood period in history.
Researchers found evidence of three unique root systems, including a palm tree-like tree and a tree called Archaeopteris, which shares characteristics with modern seed plants. This discovery suggests that the transition toward modern forests began earlier than previously thought, around 385 million years ago.
Researchers identified hotspots for wild honeybee nesting sites, including unmanaged forests and coniferous forests in Sweden and Finland. The study suggests that conserving trees with cavities should be included in forest management to support pollinator populations.
A 79-year study confirms that increased coniferous forests are the primary cause of water browning in lakes and rivers. Organic soil leaching into lakes and streams also contributes to this process.
Researchers from Siberian Federal University participated in a global project to collect data on forest composition, distribution, and carbon stocks. They found that Siberian forests will experience changes due to climate change, including increased growth and thicker vegetation, but also threats from pests and soil erosion.
A new study suggests that Northern Goshawks prefer late-seral forest habitats with larger trees and closed canopies, which are already in short supply due to changing fire patterns. The research found that 80% of foraging habitat and 87% of roost sites were designated a 'High Wildfire Potential Hazard' by the US Forest Service.
A study found that bats in the Sierra Nevada appear to be well-adapted to wildfire, with overall species richness increasing in burned forests. This suggests that prescribed burns and managed wildfire may benefit these species by creating diverse habitat conditions, including openings for roosting and insect-foraging.
The study reveals that the winner of the climate tug of war between CO2 fertilization and heat stress depends on the ratio between the two. If forests can acclimate, they can tolerate a lower ratio, but if not, it's above 89 parts per million CO2 per degree C of warming. Other factors like forest fires, insect infestation, and exceptio...
A national REDD+ program in Guyana reduced tree cover loss by 35%, equivalent to 12.8 million tons of avoided carbon emissions. However, tree cover loss increased significantly after carbon payments ended, highlighting the importance of continuous forest protection measures.
A study reveals a decline in forest carbon storage time, hindering forests' ability to absorb and re-emit carbon. Forests are crucial for regulating atmospheric carbon dioxide concentrations, and increased tree mortality is contributing to this decline.
A global coalition of scientists declares a climate emergency, warning of 'untold human suffering' without drastic changes. They propose six key areas for mitigation: energy, short-lived pollutants, nature, food, economy, and population.
The researchers propose a strategic approach to conservation, focusing on keystone ecosystems that support large numbers of dependent species. This mega-conservation approach has the potential to enhance biodiversity and facilitate effective global-scale conservation efforts.
A large-scale biodiversity study found that insect decline is more extensive than previously thought, with many species affected in both grasslands and forests. The researchers identified the biggest losses in grasslands surrounded by intensively farmed land, where the most heavily impacted species were those unable to travel far.
A new study found that using Napier grass as a nutrient-rich animal fodder can intensify small-scale dairy farming while reducing greenhouse gas emissions. The research modelled the impact of three scenarios for feeding diets to dairy cows in Kenya, and found that only the Napier grass diet reduced overall emissions by 2.5%.
A new special issue of World Development examines the ways forests serve to alleviate poverty around the world. Research highlights the importance of forests in promoting broader prosperity, including through community-based forest enterprises, ecotourism, and ecosystem services.
A team developed a way to understand how nonnative insects might behave in their new environments, using evolutionary history. The model can quickly evaluate the risk of insect invasions and help foresters predict which species will be problematic.
Researchers at UNH found a significant decline in frost days and ice days in northern forests across the US and Canada. This change could have serious implications for ecosystems, water supplies, economies, tourism, and human health. Cold temperatures help prevent disease spread and manage insects detrimental to trees.
A Dartmouth-led study reveals that actively managed mixed wood forests in New Hampshire have significant carbon stores, both above and below ground. The research found that the forests' soil carbon is higher in subplots with more trees, especially fir and spruce species.
Research reveals that coniferous forests struggle to recover after wildfires due to limited seed availability, particularly near severe burn zones. Warm and dry conditions further impede new tree seedling establishment. Land managers are advised to concentrate reforestation efforts in cool, wet areas.
A new study finds that increased rainfall extremes could drive tree growth reductions across the southwest US. Tree-ring records analyzed by researchers reveal that major species such as ponderosa pine, Douglas-fir, and piñon pine are particularly affected.
A new research special issue analyzes landscape patterns to understand their effects on resource sustainability, ecosystem health, habitat connectivity, and other societal values. The study highlights the importance of measuring and monitoring these patterns to ensure sustainable landscapes.
New research reveals that coniferous forest aerosols no longer cool the climate as much, thanks to increased small airborne particles caused by human activities. The reduction of natural aerosols and increase of smaller particles diminish the cooling effect on the climate.
Aiming to limit warming to 1.5°C can maintain Arctic summer sea ice, forests, and coral reefs, with clear benefits for human health and economies. The authors emphasize the need for immediate and transformative actions in the next decade to achieve this goal.
The Pan-Borneo Highway will severely degrade Borneo's last expanses of intact forest, increasing pressures on loggers, poachers, and farmers. The network of highways would isolate Sabah's forests from the rest of Borneo, cutting off endangered species' habitats.
Scientists have made progress in understanding dark matter by studying the interactions between light and gas in intergalactic space. Researchers used simulations and observations of distant quasars to analyze the properties of primordial black holes, which could provide evidence for their role in explaining dark matter.
Researchers at the University of Seville studied the pine forests in the Iberian Peninsula to understand factors that make conservation successful. They found that climate, radiation, and temperature influenced the success of translocation, and recommended planting in winter or spring with proper watering.
Researchers measured VOC concentrations using unmanned aerial vehicles over central Amazonia's plateau and slope forests. Isoprene levels were found to be significantly higher in near-canopy atmosphere over plateau forests compared to slope forests.
A new study by Penn State researcher Marc Abrams suggests that white-tailed deer browsing has not impacted forest canopies, but rather slowed the densification process. Forests are becoming increasingly dense due to a lack of fire and increased deer populations.
A University of Queensland-led study identified factors fuelling Colombian deforestation, including conflict between illegal groups and government forces, as well as proximity to coca plantations and mining concessions. The research highlights the importance of stable governance in retaining forests and reducing deforestation risk.
A study by the USDA Forest Service and Purdue University finds that non-native invasive insects and diseases are reducing the amount of carbon stored in trees across the United States. The study estimates that 41% of live forest biomass is threatened, with certain species like emerald ash borer and gypsy moth causing significant damage.
Estimates suggest that non-native pests contribute to the death of approximately 5.5 TgC per year, impacting forest carbon budgets and ecosystem services worldwide. Compensatory growth of non-host trees is observed, but most pests have not yet invaded their hosts' full ranges.
A new study by the University of Birmingham found that large-scale tree deaths worldwide are responsible for more than a tenth of total tree deaths. The research used satellite observations and computational models to calculate the impact of these events on carbon storage, revealing that they account for 12% of global tree mortality.
A new study by CABI presents guidance on monitoring non-native pests that can pose a serious threat to forest resources. The team recommends considering important factors when monitoring for non-native pests, including the location and timing of sampling, to ensure effective biosecurity measures are taken.
Forest water-use efficiency has been increasing globally, with trees conserving water through elevated CO2 levels. Photosynthesis is the primary driver of this increase, while stomatal conductance reduction is limited to drier forests.
A 38-year study found climate change affects conifer growth, while broad-leaved trees thrive, altering forest composition and ecosystem functions. Climate change accelerates, primeval mixed forests may shift to broad-leaved tree forests, impacting carbon storage, water provision, biodiversity, and wood supply.
Research suggests that forest elephant extinction will lead to an increase in fast-growing tree species, which store less carbon than slow-growing species. This shift will reduce the forest's ability to sequester carbon, releasing more CO2 into the atmosphere.
A new species of flying squirrel from Southwest China, Biswamoyopterus gaoligongensis, has been described. The discovery sheds light on the genus' previously unknown range and highlights the need for further research into its ecology and conservation status.
Dr. Ryan Perroy's solution uses high-resolution cameras and sensors to improve early detection of Rapid 'Ohi'a Death across forests, giving managers precious time to respond to outbreaks. The innovative approach also involves collecting samples from suspect trees using drones for laboratory analysis.
Research by University of Wisconsin-Madison scientists found that irrigated farms in the region lower maximum temperatures by one to three degrees Fahrenheit on average, while increasing minimum temperatures up to four degrees. This cooling effect can significantly impact local climate, plant growth, and human health.
A study published in Nature Geoscience found that California's Sierra Nevada mountain range experienced a catastrophic forest die-off due to depleted deep-soil water. The researchers discovered that years of severe drought and abnormally warm temperatures exceeded the safety margin for trees, leading to widespread tree death.
Researchers found that coastal, indigenous forests in South Africa store a moderate to large amount of carbon, making them important for conservation. The study also highlights the need to balance forest productivity with local community needs in order to achieve sustainable development.
New research finds that climate change could lead to more frequent and intense spruce beetle outbreaks in the Rocky Mountains. Warmer temperatures could extend the beetle's flight period and make coordinated attacks harder to predict.
Researchers argue that policymakers should use disturbance ecology to stabilize forest carbon and account for risks in climate change mitigation policies. This approach aims to balance immediate loss with long-term storage, promoting forest carbon sequestration.
A study from the University of California, Davis found that thinning forests and prescribed burns reduced tree mortality during a severe drought and bark beetle epidemic. The treatment also helped to increase forest resilience by reducing water stress and making trees more resistant to climate change.
A new review article highlights the vulnerability of rural coastlines to sea-level rise, with research showing widespread conversion of upland forests to wetlands. The study emphasizes the need for better understanding of factors influencing land conversion, including human barriers and policy incentives.
A recent study suggests that Native Americans' use of fire to manage vegetation in the Eastern United States had a more profound impact on forest composition than climate change. The researchers found that frequent and widespread human-caused fire resulted in the predominance of fire-adapted tree species, leading to changes in forest c...
A recent study found that Yellowstone's re-burned forests have a six-fold decline in lodgepole pine tree seedlings and lost significant carbon storage capacity after experiencing two consecutive fires within fewer than 30 years. The researchers estimate it would take over 150 years for the forest to recover its lost carbon.
Researchers found that re-burned areas experienced significant biomass loss and a six-fold decrease in tree seedling density. The study suggests that future short fire intervals may adversely affect the resilience of subalpine forests, threatening their ability to recover from previous fires.
Researchers from Immanuel Kant Baltic Federal University have discovered a quick and effective method for identifying Gypsy Moth caterpillars' sex. This breakthrough could lead to new ways to control the insect population, allowing forests to thrive once again.
Researchers mapped over 1.1 million forest sites and 28,000 tree species to understand how symbiotic partnerships structure the world's forests. The study revealed a new biological rule, Read's Rule, which predicts massive changes to the symbiotic state of the world's forests if carbon emissions continue unabated.
Researchers found that ghost forests supported a different group of bird species than the forests they replaced. Some bird species, like the northern bobwhite quail and woodpeckers, fared well with the changes in vegetation.
Researchers found positive correlations between biodiversity conservation and carbon sequestration in ten of twelve landscapes, indicating a shared benefit. The study suggests that increasing biodiversity can also increase carbon storage, highlighting the interconnectedness of these two goals.
Urban trees exhibit accelerated growth but higher mortality rates than rural counterparts, resulting in a net loss of street-tree carbon storage over time. Strategic planting and maintenance initiatives can help maximize urban greening efforts as a climate-mitigation tool.
A recent study by Michigan State University researchers found that nature reserves close to cities are more effective at preventing deforestation than remote areas. The study evaluated China's protected areas and concluded that these reserves can sequester significant amounts of carbon dioxide, helping to combat global deforestation.
Michigan State University researchers have created a potential solution for emerging wearable tech by developing highly stretchable supercapacitors powered by crumpled carbon nanotube forests. The new design has demonstrated solid performance and stability, even under extreme stretching and relaxing cycles.
Research suggests that large protected forest areas are crucial for conserving bird species, while coffee plantations can serve as habitats for migratory birds and young birds. Insectivores suffered the greatest declines, with population losses greater in smaller forest fragments.
Researchers at the University of Córdoba have sequenced the Holm oak transcriptome, providing insights into the tree's reactions to stress and other biological aspects. The study has generated over 34,000 annotated transcriptions, offering a first approximation of the genome and potential for future research projects.
A new study from the University of Illinois at Urbana-Champaign found that counties with more forests and shrublands tend to have lower Medicare costs. The analysis revealed an average Medicare expenditure savings of $4.32 per person per year for each 1 percent of forest cover.
A new residential wood ash program aims to replenish Muskoka's declining calcium levels, essential for forest growth and life. The program could also improve crayfish stock, water quality, and maple syrup production.