Articles tagged with Trees
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
The study uses Landsat and Aster satellites to identify ecologically relevant environmental and biotic variation, and machine learning algorithms predict species distributions. The findings provide important information for forest management and conservation in the Peruvian lowland Amazonia.
Researchers at OHSU used 3D imaging to investigate airway nerves in asthma. They found that denser nerves are associated with more severe symptoms and increased eosinophils. This new insight could lead to better treatments for asthma.
A study led by Duke University estimates total population sizes and geographic ranges for 19 lemur species across Madagascar using trees as a proxy. The findings suggest that not all lemurs are endangered, with some species having healthy populations remaining, while others face significant declines due to habitat loss and hunting.
A University of Basel study reveals that native forest trees can adapt to extreme drought by closing their pores, preventing damage and reducing water loss. Despite this, researchers caution that prolonged dry spells could weaken trees and make them more susceptible to insect infestations.
A new phase has been proposed in the relationship between figs and wasps, revealing a sixth developmental cycle where insects other than wasps can insert their eggs into figs. This finding highlights the complex mutualism between figs and wasps, which have evolved over 65 million years.
Research found that biodiversity increases live tree carbon storage by up to 20 megagrams per hectare, but has a smaller impact on overall carbon storage. Climate and site topography have a more significant effect on forest carbon storage.
Research suggests that tree felling in African savannas is releasing at least three times more carbon than previously thought. The study found that degradation releases around twice as much carbon as deforestation, leading to combined losses of three to six times higher than expected.
A new Yale study examines the role of 'natural enemies' in promoting tropical species diversity. However, findings suggest that disparities in enemy susceptibility can make communities less stable. The research contradicts a long-held hypothesis, highlighting the need for alternative explanations.
Researchers analyzed over 23,000 tree cores to investigate how adult trees respond to changes in climatic conditions. The study found that trees responded to variations in climate during a roughly 40 year period and adapted locally.
Biologists at Rice University have discovered a new trophic interaction between love vines and gall-forming wasps. The study found that the vines attack tumor-like growths called galls made by the wasps, leaving behind mummified adult wasps.
A new interaction between plant and insect parasites is found when the two exist on a shared host. The parasite-leeches nutrients and moisture away from the wasp larvae developing in the tree, while also attacking unusual growths caused by the wasps. This discovery has implications for agriculture and medicine.
A University of Montana researcher found that trees surviving a recent outbreak of mountain pine beetles had a distinct genetic makeup, differing from the susceptible population. This discovery suggests that resistance to the beetles may be heritable and provides hope for managing forest adaptation.
A new mathematical model suggests that balancing demand variability and costs can significantly reduce the risk of importing exotic forest pests and diseases. The research, published in The Journal of Applied Ecology, recommends longer-term grant schemes and higher import duties to help nurseries manage fluctuations.
A new study found widespread logging permit fraud in the Brazilian Amazon, which is undercutting conservation efforts and threatening high-value timber species like ipe. The researchers discovered a deliberate overestimation bias of these species, indicating corruption or simple misidentification.
A study by the Technical University of Munich found that European trees' wood density has decreased continuously since 1870, despite increased growth. The decrease in wood density is attributed to factors such as rising temperatures and nitrogen input from agriculture and industry, affecting forest ecosystems.
Researchers found that lichen communities in severely burned areas showed significantly lower abundance and diversity, even 16 years after the fire. The loss of tree canopy and hot, dry microclimate left in the forest post-fire hindered lichen growth, suggesting that recolonization may not occur until mature trees regrow.
Researchers from CNRS and Cirad have discovered that the bark of certain tree species generates forces that control tree growth and upright posture. This motor function was previously overlooked, but is now recognized as a crucial component of a tree's ability to grow vertically.
A groundbreaking study by Oregon State University demonstrates the potential for genetically modified forest trees to prevent new seedlings from establishing. Researchers successfully engineered containment traits that limit the spread of genetically modified or exotic poplar trees, mitigating societal concerns over gene flow.
A study found that tropical tree species have distinct nutrient-capture strategies, with some producing more phosphatase in poor soils. The research highlights the importance of biodiversity for successful reforestation projects and suggests that applying basic biological processes can maximize carbon capture.
Research reveals that tropical pioneer tree species employ physical and chemical defenses to survive, with seeds relying on different strategies based on their persistence time. The study's findings have implications for crop production, weed management, and understanding natural plant community dynamics.
Research finds 73% of tree species have shifted westward, largely associated with changes in moisture availability. Climate change impacts are more near-term and related to moisture availability than temperature changes.
A new study reveals that animal and fungal species have a significant impact on forest performance, including carbon storage and climate regulation. The research, conducted over ten years in subtropical forests, found that biodiversity must be considered as a whole to maintain forest health.
Researchers develop a multidimensional model to study tree sap transport, capturing radial variations and geometry effects. The model validates findings via numerical method, providing new insights into flow regimes and their dependence on physical parameters.
Current tropical forests' capacity to absorb carbon dioxide is being compromised by deforestation and climate change, threatening global temperature rise goals. Researchers estimate that forests are currently absorbing as much CO2 as they generate through deforestation and degradation.
A new NASA study reveals that megafires in Canada's Northwest Territories released half as much carbon back into the atmosphere as all the plants, shrubs and trees store in an entire year. The Arctic is warming faster than any other region on Earth, leading to more frequent and intense large fires.
A Dartmouth-led study proposes that the Lorax viewed himself as part of the Truffula forest ecosystem, not an ecopoliceman, and had a symbiotic relationship with other species. The research also finds that Geisel's inspiration for elements in the Lorax may have been based on actual tree and monkey species in Kenya.
A new project uses talking trees to investigate how forest ecosystems react to climate dynamics. Researchers track the trees' growth patterns and water transport, linking this data to social sciences research on education and climate modeling.
Research reviewed by North Carolina State University suggests that cities display predicted effects of climate change, including urban heat islands and drought rates. Urban areas can show how plants and animals respond to changes in climate over long stretches of time, providing insights into potential future effects.
A study found that elephants are responsible for 37% of seeds produced viable seedlings, while smaller forest animals like deer have lower effectiveness. This suggests that declines in megafauna populations could impact the tree's reproductive success and forest ecosystem dynamics.
Native tree seedlings proliferated after rat removal, with an average of 8 seedlings per square meter. The restored forest provides critical habitat for seabirds, crabs, and other rare species, contributing to resilient ecosystems and improved fish populations.
Treevia's SmartForest system uses wearable devices and electronic sensors to monitor tree growth, quality, and health in real-time. This allows for more efficient and data-driven forest management decisions.
Researchers found that particulate matter increases foliar transpiration in plants, making them more susceptible to drought. The tiny pores on leaves, known as stomata, are compromised by salt solutions formed from hygroscopic particles.
Researchers at Virginia Tech used ecological forecasting to predict future growth rates of loblolly pine trees, showing a potential 30% increase in productivity by the middle of the century. The study focused on planted loblolly pine plantations in the Southeastern United States and highlighted uncertainties depending on specific regions.
Researchers from the University of Guelph found that climate warming-induced advances in treeline movement may be halted by unsuitable soils, hindering plant growth. This discovery is important for preserving individual species or entire ecosystems.
Researchers used genetic analysis to sort bat species, revealing two new species in Kenya. The findings have implications for conservation and farming efforts.
A University of California, Davis study found that grasslands are more resilient carbon sinks than forests in 21st century California, especially when considering the impacts of droughts and wildfires. Grasslands store most of their carbon underground, making them a viable option for carbon offset efforts.
A recent study published in Science Advances analyzed the most complete foot of an ancient juvenile Australopithecus afarensis, discovered in Ethiopia. The findings suggest that the child spent more time in trees than adults, utilizing its backup plan to survive despite walking upright at a young age.
Researchers analyzed nearly four decades of TV footage from the Tour of Flanders and found that trees were advancing their leafing and flowering in response to warmer temperatures. This phenomenon, known as phenology, can have significant impacts on ecosystems, affecting animal habitats and plant species.
A new study by Rice University ecologists suggests that saving lemurs could be key to saving the island's largest trees. Lemurs disperse seeds of many hardwoods, but their loss may lead to a change in forest composition, reducing carbon sequestration potential.
Researchers found that the mountain beaver's ancestor had a larger relative brain size than modern-day mountain beavers. The study suggests that as the animal transitioned from living in trees to burrowing underground, its neocortex, responsible for sight, may have shrunk over time.
Research in Japan found that Asiatic black bears create arboreal feeding signs (AFS) on trees with large mast energy values, indicating a cost-benefit analysis for climbing. AFS are also more likely during poor mast years when competition for hard mast is high.
Researchers call for active woodland management to create a 'mosaic' of trees with varied ages and sizes. Dormouse numbers are falling in Britain due to changes in climate and habitat composition, with more broadleaf woodland needed to support the species.
Researchers used LiDAR technology to map carbon storage in urban forests, finding areas like Hampstead Heath store up to 178 tonnes of carbon per hectare. This study highlights the value of urban trees for mitigating climate change and demonstrates their potential as a vital resource for cities.
A new airborne remote-imaging method can identify olive tree infections caused by the devastating bacterium Xylella fastidiosa before visible symptoms appear. This detection enables rapid containment and culling of infected trees, crucial in controlling the spread of the disease across southern Europe's iconic orchards.
Using tree-fall patterns, researchers estimated the near-surface wind speeds of an actual tornado event in Naplate, IL, with results compared to wind speeds from residential houses and damaged infrastructure. The method also applied to crops damaged by tornadoes, providing a new approach to estimating tornado intensity.
A new study confirms that increasing winter temperatures allow beetles to expand their range, but also reveals that overcrowding can limit population growth. Resource competition is a stronger factor than cold temperatures in beetle mortality.
Researchers identified 29 Antarctic fungi with proven action against Xanthomonas citri, the bacterium causing citrus canker. The isolated compounds inhibited bacterial growth by up to 98%, offering a promising alternative to copper-based control methods.
Researchers found that dogs can effectively sniff out infected avocado trees well in advance, providing a potential solution to the devastating impact of laurel wilt disease on the industry. The study's results show that dogs can detect agricultural diseases like laurel wilt with high accuracy, even in harsh weather conditions.
A large-scale study found that tree fungi communities are stressed by pollution across 20 European countries. The study revealed thresholds of essential nutrients like nitrogen and phosphorus beyond which the community of mycorrhizal fungi changes.
New research by the USDA Forest Service suggests that reduced acid rain and warmer temperatures are behind the resurgence of red spruce. The study found that over 75% of red spruce trees exhibited increasing growth since 2001, indicating a positive response to recent climate shifts.
Researchers at the University of Delaware developed a novel process to convert lignin, a common wood byproduct, into high-performance adhesive tape. The new process performs just as well as commercially available products and uses a sustainable material.
A new study found that red spruce tree growth has increased by over 75% since 2001, with reduced pollution and warmer winter temperatures likely contributing to the resurgence. The research suggests that the Clean Air Act is working to enhance conditions for red spruce, but future changes in climate may impact their recovery.
Research from Dartmouth College shows that cooler weather can increase the lethality of southern pine beetles' attacks on trees. The study demonstrates how climate change creates a destructive one-two punch for forests, with warmer temperatures leading to synchronized emergence of adult beetles and increased population density.
A global study found that Leguminosae trees are twice as common in dry compared with wet secondary forests during the first three decades of natural forest regeneration. These trees have high drought tolerance and can fix nitrogen from the atmosphere, making them essential for tropical forest regrowth in dry regions.
Researchers analyzed plant fossil record and evolutionary relationships to conclude that global forest collapse led to the survival of only a few ancestral bird lineages. These early survivors adapted to life on the ground, laying the foundation for the diverse range of modern bird species.
A new study reveals that the asteroid impact that wiped out dinosaurs also caused a mass extinction of forests, leading to the demise of tree-dwelling birds. The research team analyzed fossil records and pollen evidence to conclude that the temporary loss of forests after the impact made it impossible for arboreal birds to survive.
A large study published in Diabetologia found that consuming two ounces of tree nuts daily can improve glycemic control and blood lipid levels in individuals with type 2 diabetes. The research, funded by the International Tree Nut Council, showed a modest but significant improvement in blood glucose control despite higher fat intake.
Researchers found that a shade-tree cover of approximately 30% has a predominantly positive effect on cocoa plants, maintaining maximum soil moisture and keeping pests and diseases in check. This amount of shade also increases animal and plant species, carbon sequestration, and cooling effects on temperature.
A new study reveals that ancient communities in South America, particularly the Southern Jê people, played a significant role in expanding the critically endangered Araucaria forests between 1,410 and 900 years ago. The forests, which date back to the time of dinosaurs, were initially established on grasslands and expanded into highlan...
Researchers at the University of Stirling discovered regular cycles in 36% of samples from 851 tropical trees, challenging the principle that tropical ecosystems are aseasonal. The study found flowers are more likely to occur on a regular annual cycle than fruits and leaves.