Articles tagged with Forests
Researchers found differences in grasshopper types and numbers between undisturbed and post-agricultural woodlands, challenging conventional ecological wisdom. The study suggests new strategies are needed to promote ecological recovery in disturbed environments.
Researchers have identified a natural resistance gene in white spruce trees that makes them resistant to the devastating spruce budworm. The gene, betaglucosidase-1, produces compounds toxic to the caterpillar, potentially allowing for replanting of forests affected by the pest.
Researchers at NEIKER felled pine trees and attached sensors to measure the force exerted on them, recording the degree of tilt to determine the roots' resistance and trunk strength. The study aims to provide forestry experts with tools to manage woodlands better and mitigate wind damage risks.
Researchers found that patches of waterlogged soil in forested watersheds act as hotspots for microbial activity, removing nitrogen from groundwater and returning it to the atmosphere. This process, known as denitrification, can improve water quality by reducing nitrate levels in streams.
New research reveals that Swainson's warbler populations are increasing in pine plantations, which could support majority of breeding populations by 21st century. The species, one of North America's rarest songbirds, has been found to thrive in a surprising new habitat, boosting conservation hopes.
Research suggests that human activities such as clear-cutting and fire suppression have a greater impact on forest tree composition than climate change. The study analyzed 190 datasets to determine the relative impacts of climate versus altered disturbance regimes for various biomes across the eastern United States.
A recent study by the University of Wisconsin-Madison found that mountain pine beetles contribute little to the ecological severity of fires in the Northern Rocky Mountains. The researchers tested six wildfires that affected over 75,000 acres and found no significant link between beetle outbreaks and fire severity.
A new study published in PLOS Biology reveals that the meteorite impact that ended the dinosaurs also accelerated the growth of fast-growing flowering plants, which replaced slower-growing evergreen species. The research used fossilized leaves to reconstruct a plant community thriving during a 2.2 million-year period after the impact.
A study of fossilized leaves reveals that the meteorite impact that ended the dinosaurs' reign favored fast-growing, deciduous plants. This shift from slow-growing evergreens to fast-growing species indicates that the extinction was not random, but rather a response to the major disturbance caused by the impact.
A Yale study finds that the conversion of forests to cropland worldwide has reduced global BVOC emissions, leading to a net cooling effect on climate temperatures. The loss of dark-colored forests and reduction in emissions of short-lived climate pollutants have offset warming caused by increased fossil fuel carbon dioxide emissions.
A University of Georgia study found that Japanese stiltgrass creates a habitat for wolf spiders, which then feed on American toads. The study reveals that the invasive grass reduces toad survival by increasing spider densities.
A special journal section assesses regional interactions between climate change, fire, and forests in the US, providing insights into projected changes and ecosystem services. The goal is to inform forest management choices and policy responses to mitigate these impacts.
New England cottontails have seen a 50% contraction of their range due to habitat fragmentation. Researchers found that restoring habitats is key to saving the species, which requires thicketed areas for survival. Understanding dispersal patterns through DNA analysis can help wildlife and land managers in species recovery efforts.
A new sand-dwelling plant species of the genus Cissampelos has been discovered in Bolivia and Paraguay. The species exhibits unique morphological features, including small leaves and a large endocarp, and is superficially similar to a southern African taxon found in dry habitats.
Harvard researchers found forests in the Eastern US are showing signs of spring growth earlier than ever, enabling them to store up to 26 million metric tons more CO2. However, continued climate change may lead to more dramatic negative consequences, such as changes in precipitation patterns and reduced water availability for forests.
Researchers model future land-use change in the US and propose incentive structures for landowners to provide ecosystem services. The work aims to strike a balance between human needs and natural systems, with tradeoffs identified for every policy.
Researchers discovered a fungus that can completely eradicate tree-of-heaven plants, including sprouts. The treatment has shown promise as a bio-control agent to combat the invasive species' rapid spread across the US.
Human-caused fires in the Primorsky Province of Russia are ravaging the landscape, with statistics showing that 94% of forest fires can be attributed to human activities. The uncontrolled burning of dry grass for centuries has led to widespread deforestation and degradation of forests, posing a significant threat to various species.
A new study found that prolonged droughts cause more intense and widespread wildfires, consuming more forests than previously understood. Climate change is expected to lead to shorter rainy seasons and longer dry seasons, increasing the risk of forest fires.
A new report promotes REDD+ and Green Economy as a pathway to sustainable development, benefiting all nations. Forests are the foundation of sustainable societies, storing carbon, supporting biodiversity, regulating water flows, and reducing soil erosion.
Research by the USDA Forest Service finds that woodland salamander predation on invertebrates increases litter retention and carbon capture. The study, led by Dr. Hartwell Welsh Jr., suggests that these small animals play a significant role in regulating forest ecosystems.
A new mathematical model developed by Brown University scientists can predict how trees compete for space in the canopy, revealing that incumbent trees dominate 97.9% of a given square meter two years later.
The study analyzed the potential of energy wood resources in the Leningrad region of Russia, finding significant potential for intensification. Maximization of sustainable energy wood supply could create new jobs and business opportunities, but challenges like low productivity and technical accessibility need to be solved.
Researchers found that certain management practices can increase habitat availability for species and reduce economic losses for forest owners. The study suggests using compensatory funding to support these efforts and reconcile alternative uses of forests.
Unusual dry spell in Northern Sumatra triggers use of slash and burn method to clear fields. Seven hot spots identified in oil palm plantations and forest concessions, fueling fears about the connection between fires and agricultural practices.
Researchers at Northern Arizona University found that drug trafficking is causing widespread deforestation in Central America, threatening conservation efforts and the Mesoamerican Biological Corridor. The team hopes to influence drug policy with their message, emphasizing the importance of conservation in shaping future decisions.
A new study explores global variance in tree height, identifying temperature as the most significant factor behind the tallest species. The research reveals that climates with small seasonal temperature variation support the growth of the world's nine tallest tree species.
A Michigan State University scholar proposes the telecoupling framework to understand how China's domestic decisions influence other countries and vice versa. The research shows that China's efforts to sustain forests can have substantial global impacts, including reappearing deforestation in countries that sell lumber and food to China.
Native forests have been found to recolonize pine plantations without human intervention, thanks to the natural process of ecological succession. This research suggests that pine plantations can be used as a tool for encouraging native forest development in certain areas, particularly when the plantations are older.
Scientists have identified a new species of wild cat living in northeastern and southern Brazil, with distinct habitats and evolutionary histories. The discovery highlights the need for targeted conservation efforts to protect these endangered species.
Researchers found precolonial eastern forests, dominated by American beech, red oak and sweet birch, using 300-year-old leaves buried behind milldams. This knowledge can inform successful stream restoration approaches that consider the past forest makeup.
Researchers found that Chitwan National Park's buffer zone has improved tiger habitat quality through innovative monitoring methods, while the park itself has degraded over a 20-year period. Camera traps combined with satellite images provided insights into tigers' behavior and habitat preferences.
Researchers used playbacks to examine the effects on wrens and antpittas, finding that repeated playbacks can stress birds and lead to wasted energy. Habituation occurred after daily playback for two-and-a-half weeks, suggesting minimal impact on wren behavior.
A comprehensive review of climate change's impacts on forest pests, diseases, and ecosystems reveals complex consequences. Warmer temperatures alter pest distribution, biodiversity, and ecosystem resilience, while also boosting forest health and acreage in some areas.
A new study predicts global forest cover will decline from 30% to 22% over the next two centuries due to increased agricultural demands and urbanization. The model suggests cooperation among nations is crucial to preserving forests, with technologies sharing being a key strategy.
New research reveals that waviness in vertically-aligned carbon nanotubes leads to reduced stiffness due to tiny kinkiness in their structure. This finding has potential applications in thermal interface materials and heat transfer, where the compliance of the nanotubes can help connect to silicon chips and copper heat spreaders.
A study by Aarhus University researchers found that global forests are being cleared and restricted to steep terrain, leading to reduced biodiversity. The shift is driven by human activities such as agriculture, urbanization, and efficient land use practices.
Researchers from Cambridge University have devised a simple technique to grow carbon nanotubes at five times higher density than previous methods, enabling the potential replacement of metal electronic components in devices such as batteries and spacecraft.
A 15-year study in the Hubbard Brook Experimental Forest found that trees in a calcium-treated watershed produced 21% more wood and 11% more leaves than their counterparts. The addition of calcium helped reverse decades-long decline caused by acid rain, with sugar maple trees responding most strongly.
The Okanagana viridis cicada is a newly studied species found in the temperate deciduous forests of Arkansas, Louisiana, Mississippi, Tennessee, and Texas. Its distinct song features irregular doublet or triplet pulses, lasting for 30 seconds.
A recent Duke University-led study found that climate change is causing trees to speed up their life cycles, rather than migrating to cooler climates. Most species are staying in their current geographic locations, but growing more rapidly due to warmer temperatures and longer growing seasons.
Cloud forest trees are highly sensitive to climate change due to their narrow temperature range, making them vulnerable to migration and population loss. Conservation strategies may need to be revised to protect these ecosystems from massive population decline.
A 400-year study by Harvard University researchers found that Northeastern forests have changed significantly after centuries of intensive land use. Maples have exploded across the region, while other tree types like beeches, oaks, and chestnuts show a pronounced decline. Pine numbers have shifted more than any other tree type.
Research published in PLOS ONE found that logging, agriculture, and natural reforestation have changed forest composition across nine states in the northeastern US. Beech trees decreased significantly, while fir, cherry, and maple trees increased in abundance.
Researchers predict significant growth of trees and bushes in large parts of ice-free Greenland by 2100, with southern regions likely to become greener. The analysis identifies over 400,000 square kilometers suitable for forest flora, offering new opportunities for activities such as hunting and commercial exploitation.
The discovery of the olinguito reveals that the world is not yet completely explored, with many species still unknown to science. The team's findings also highlight the critical need to protect the cloud forests of Ecuador and Colombia, which are under threat from human development.
The discovery of the olinguito is the first carnivore species to be found in the Western Hemisphere in over 35 years. The animal was discovered in cloud forests of Colombia and Ecuador through a combination of DNA testing, museum specimens, and field expeditions.
The article explores the use of prescribed burning in various regions, including the US, Australia, South America, and southern Europe, to manage fire-prone landscapes. It highlights successful traditional practices, such as the Maya milpa in South America, which create spaces for different crops while sustaining wildlife and soil fert...
In July 2013, Oregon's severe drought and thunderstorms ignited dozens of difficult-to-control wildfires. The fires burned nearly 144,688 acres across the state, with smoke posing health risks to residents. Firefighters battled the blazes, including the Douglas Complex and Big Windy Complex, which collectively burned over 50,000 acres.
Researchers use tree-ring growth data to reconstruct forest drought-stress index, revealing strong relationships between FDSI and regional forest productivity. Climate change is expected to lead to increased forest drought-stress by the 2050s, driving imminent changes in forest structure and composition.
Researchers in Borneo have found orangutans regularly coming down from trees to forage or travel, comparable to ground-dwelling macaques. The reason for this behavior remains a mystery, but habitat loss and transformation may be driving the adaptation.
A study by the University of Edinburgh reveals that deforestation in south-central Africa is driven by population growth and agriculture demands. Sustainable fuel alternatives and reduced burning practices can mitigate this loss, while forest cover north of the Congo basin shows a contradictory trend.
A study by University of Missouri-Columbia biologists reveals that hundreds of black bears inhabit southern Missouri's Ozark forests, indicating a return to healthy forests. The bear population is small but growing, and experts warn of potential conflicts with outdoor recreationists and homeowners.
Increased precipitation and changes in forest structure in Argentina's forests are leading to higher rates of parasitic fly infection in young birds. This study found that slight changes in precipitation and vegetation structure, coupled with crowding of nests, result in large increases in the number of parasites per chick.
Forests across the globe are losing less water and becoming more efficient in using it for growth as atmospheric carbon dioxide levels rise. Scientists found that forests are storing more carbon due to higher growth rates.
Rising temperatures cause snakes to become more active, devouring mosquito-eating birds like the Acadian flycatcher. This increase in snake predation has severe consequences for agriculture, disease prevention, and tourism.
A study by researchers found that forests in the northern hemisphere increase their water use efficiency as atmospheric carbon dioxide concentrations rise, exceeding theoretical expectations. This adaptation helps plants conserve water despite increased photosynthesis, potentially shifting the global water and carbon cycle.
A new study found that China's payments for ecosystem services programs led to significant forest growth and environmental benefits. However, the programs also had negative impacts on rural households and their livelihoods, highlighting the need for more sustainable policies.
A false-color image from NASA's Landsat 8 satellite captured the extent of the East Peak fire burn scar in southern Colorado. The fire burned nearly 13,500 acres before being extinguished on June 25, 2013.
Researchers found tigers in central Sumatra live at lower than expected densities due to high levels of human activity. The study suggests that legal protection and intensive management can reduce human disturbance and facilitate tiger recovery.