Articles tagged with Trees
Researchers aim to create the first complete genome sequence for dogwoods, enabling plant breeders to develop new varieties with improved traits. Citizen scientists will collect data on flowering patterns, flower color, and susceptibility to diseases.
A University of Illinois Chicago study found that a neighborhood's small yards have a greater impact on the variety of native birds than larger landscape features. The researchers identified bird-friendly landscaping features such as fruit-bearing trees and shrubs to increase bird diversity in backyards.
A University of California, Davis study found that the Ising model can explain synchronous events like fruit tree boom and bust years and insect outbreaks. The model applies to understanding population dynamics and has broader implications for extinction and disease.
Researchers are testing Zinkicide, a nanoparticle bactericide, to combat citrus greening in Florida. The treatment aims to target the bacteria that causes Huanglongbing, a disease that has devastated the state's $10.7 billion citrus industry.
A new modeling tool predicts that drought-induced forest mortality will occur across the US and Canada by the 2050s due to climate change. The model simulates widespread aspen mortality caused by the 2000-2003 drought, highlighting the importance of understanding tree physiology under water-stressed conditions.
Researchers have developed a new protocol to study clonal patterns in coast redwood clones, which could help forest management and preservation efforts. The method uses short repeating DNA sequences to identify distinct clones and has been tested on 770 coast redwoods.
A 30-year study reveals the Amazon's capacity to absorb carbon from the atmosphere is declining due to increased tree mortality rates. The forest, once a vast 'carbon sink', is now being overtaken by fossil fuel emissions, exacerbating climate change.
A recent study by University of Chicago researchers found that trees' defensive responses to insect attacks have downstream effects on nearby streams, impacting aquatic ecosystems. The simulation showed that stressed trees funneled valuable nutrients away from leaves, affecting leaf chemistry and decomposition rates.
The coco de mer palm tree invests energy into reproduction, producing large amounts of pollen and huge fruits that fall at the base. Its unique leaves capture water, animal waste, and debris, creating a 'parental care' system for its offspring. This modified habitat ensures other plants struggle to establish in nutrient-poor areas.
A team of researchers used micro-CT scans to explore why making willow trees grow at an angle can vastly improve their biofuel yields. Tilted willows respond by producing a sugar-rich, gelatinous fibre that helps them stay upright.
High-density planting in sweet cherry orchards can produce significant yields by the second and third year after planting. The study found that specific cultivars combined with ultra-high-density planting systems result in high production and better fruit quality.
Researchers measured growth and photosynthesis rates in Amazonian trees during severe droughts, finding a 10% decrease in photosynthesis rates. This decrease did not affect growth rates but led to increased tree deaths and potential climate change acceleration.
Researchers identified 18 genetic variants associated with maritime pine tree survival under climate stress, improving forecasts of forest growth and reforestation efforts. These findings demonstrate the importance of genetic data in managing biodiversity and commercial forestry amid a changing climate.
A team led by Montana State University ecologist Jia Hu will investigate the movement of nitrogen through a western Montana forest to provide baseline information on nitrogen availability and forest productivity. The goal is to help forest managers make informed decisions leading to healthier forests across the West.
Forest scientists at UBC have discovered the root cause of a deadly tree fungus: extra genes that produce a toxic toxin. The fungus, Mycosphaerella populorum, threatens poplar trees in plantations and eastern North America.
A massive study reveals life has been expanding at a constant rate, with new species emerging every 2 million years on average. The 'Time Tree of Life' challenges the traditional notion that adaptation drives speciation, instead highlighting the importance of random genetic events and geographic isolation.
A new study reveals that insect-eating bugs reduce forests' capacity to take up elevated levels of carbon dioxide in the atmosphere. Insects' increased feeding and nutrient cycling alter forest ecosystem dynamics.
A 200-year record of spring's arrival is helping scientists understand how woodland plants respond to rising autumn temperatures, which could affect species survival. Researchers predict that oak trees will leaf earlier than birch trees within a few decades due to warmer autumns.
Two 160 million-year-old fossils of Agilodocodon scansorius and Docofossor brachydactylus provide evidence of early mammalian ecological diversity. These ancient mammals had adaptations for arboreal and subterranean lifestyles, suggesting genetic mechanisms operated long before modern mammals.
A study in California's Sierra Nevada region found a nine-fold increase in standing dead trees and nearly three times more logs on the ground, but smaller and more decayed pieces. This shift poses a challenge for forest managers, who must balance habitat value with fire hazard reduction.
A recent study by Washington State University researchers found that adding more natural buffers to farm landscapes can not only slow soil erosion but also create more visually appealing fields and valleys. The study surveyed residents in the Palouse region of eastern Washington State, who preferred landscapes with more nature and fewe...
Research by University of Utah-led team finds shade coffee to be bird-friendly, but some species thrive in forest habitats. The study suggests organic shade coffee is the best choice for biodiversity, with native trees and no chemicals.
The American leafminer species Coptodisca lucifluella has invaded Italy's walnut orchards, a new hostplant for the insect. The moth feeds on walnut leaves, making short galleries and leaving characteristic holes, while its larvae attach small shields to leaves or surfaces.
A UCI study reveals that conifer tree species drive different types of fires in North America and Eurasia, with varying climate effects. These patterns have large-scale implications for fire ecology, climate modeling, and forest management.
A recent study found that California's forest structure is undergoing changes due to a warmer, drier climate, resulting in the decline of larger trees and an increase in smaller trees. This trend is observed across all regions of the state, with oaks becoming more dominant as pines decline.
A University of Minnesota study shows that a warmer climate will change the composition of northern forests, with oak and maple trees replacing spruce and fir. The study found that oaks and maples are better suited to warmer temperatures and can outcompete boreal species for sunlight and water.
A new study published in Nutrients found that tree nut consumers had better nutrient adequacy for most nutrients and a higher Healthy Eating Index-2005 score than non-consumers. The researchers recommend increasing awareness and consumption of tree nuts as part of a healthy diet.
Researchers develop method to analyze cell patterns in fossilized plants, revealing changes in tree cover and density over time. This discovery sheds light on how the Earth's ecosystems changed and can help forecast future climate scenarios.
The emerald ash borer has expanded its host range to include the white fringetree, causing significant damage and economic losses. The insect's larvae disrupt tree nutrient flow, leading to dieback and deformities.
A study suggests that dry forests in the western US are more threatened by insect outbreaks and droughts than wildfires. Historically, these forests had a mix of large and small trees, providing 'bet-hedging' insurance against multiple disturbances.
Researchers found that fine root hydraulic conductance is related to transplant recovery in two Quercus species, with spring transplanting optimal for Quercus bicolor. The study suggests that understanding tree roots' behavior can inform better decisions regarding transplant timing and improve post-transplant recovery.
A study published in Forest Ecology and Management found that salvage logging increases sediment in water runoff, causing erosion and damage to fish habitats. Leaving slash on the ground, breaking up equipment trails with water bars, and replanting vegetation are recommended best management practices for minimizing ecological effects.
A new publication provides standardized descriptors for the African baobab tree, enabling accelerated research into its nutritional value and potential to increase local incomes. The descriptors will aid in domestication and cultivation, supporting sustainable development of baobab value chains.
A recent engineered pulse of water to the lower Colorado River Delta resulted in significant improvements, including a 23% increase in riparian zone vegetation's greenness. The event also led to germinated new willows and cottonwoods, which can grow quickly enough to keep up with receding water tables.
A 50-year study on Australia's protected rainforests has found that the earliest life stages of individual trees are more critical to the overall diversity of the forest than later stages. The research, conducted by LSU ecologist Kyle Harms and his collaborators, used a dataset from Joseph Connell's long-term ecological research study.
A three-year study found that injecting Siberian slippery jack spores into the soil around whitebark pine seedlings increased their survival rate. The native fungus helps trees take in more nutrients and water from the soil, and produces sugars to feed the fungi.
Forest carbon projects offer benefits beyond carbon storage, including cooling effects and biophysical feedbacks. Deciduous broadleaf trees provide stronger cooling benefits than evergreen needleleaf trees in temperate ecosystems.
A new study compares machine and hand harvest techniques for specialty cider apples, finding that machine harvesting requires significantly less labor and increases apple yield. The research suggests that machine harvesting could be a viable option for US apple growers to meet growing demand for hard cider.
A team of climate scientists has found that California's drought of 2012-2014 was the worst in 1,200 years. The researchers used tree-ring samples to reconstruct rainfall data back to the 13th century and found that the current period of low precipitation combined with record-high temperatures created severe water shortages.
A study found that koalas selectively eat eucalyptus leaves with higher available nitrogen, indicating a preference for nutritious food. The researchers suggest that access to quality food plays a crucial role in shaping the distribution of koala populations in habitats with low nutritional value.
A meta-analysis of studies on reduced-impact logging (RIL) and conventional logging found that RIL causes smaller shifts in species abundance and less harm to birds, arthropods, mammals, and bats. RIL certified timber can support the diverse benefits of tropical forests and promote sustainable forestry practices.
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.
The American Society for Horticultural Science has introduced three new ornamental dogwood cultivars with resistance to dogwood anthracnose and powdery mildew. 'Empire', 'Pam's Mountain Bouquet' and 'Red Steeple' exhibit excellent disease tolerance and desirable traits such as vibrant color and unique foliage.
Researchers found stenospermocarpic black walnut fruit exhibit embryo degeneration, leading to ambered kernels. The study suggests visible embryo degeneration occurs during shell hardening and kernel enlargement.
Researchers at Washington State University have discovered a promising technology to expand the hard cider industry by mechanical harvesting of cider apples. The study found that machine harvesting can provide up to four times less labor than hand harvesting, resulting in significant cost savings and improved efficiency for orchards.
Researchers found high genetic diversity in thousand cankers disease fungus, making it harder to control. The fungus is native to the US and has mutated readily, leading to an explosion in its impact on host trees.
A study published in PLOS ONE reveals that Thousand Cankers Disease (TCD) is a native disease that has gone rogue, threatening the health of black walnut trees. The fungus, Geosmithia morbida, and its long-time host beetle have co-evolved, creating a complex that can spread rapidly across landscapes.
A University of Utah study found that pathogens killing tree seedlings in drier forests allow more diverse tree species to thrive in the wetter Caribbean environment. This separation is crucial for conservation planning and understanding how tree species adapt to climate change.
Scientists at SUNY-ESF have successfully created blight-resistant American chestnut trees through genetic engineering, powered by a single gene from wheat. The trees, which can co-exist with the invasive fungus that devastated the species, are being prepared for potential reforestation efforts.
A new study by Rice University researchers reveals lemurs play a crucial role in dispersing seeds for trees, increasing survival rates. The findings highlight the importance of preserving lemur populations to maintain the health of Madagascar's rainforests.
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.
New research suggests that maple syrup production is linked to mast seeding events, where trees produce more seeds than usual. Following every mast seed year, syrup production declined in Vermont. The study's findings could help producers plan ahead for the upcoming season.
Researchers studied wild chimpanzee behavior in the Taí National Park, finding that they plan their breakfast time, type, and location to access limited figs. Chimpanzees depart earlier for distant fig sites, positioning their nests near these locations to maximize food acquisition.
White-footed sportive lemurs use scent-marks in latrines to maintain contact with family members and inform intruders of a male's presence. The study found that males visited latrines more often during nights when an intruder invaded the territory, promoting social bonding among group members.
A recent study published in Science suggests that global declines in carnivore populations could embolden herbivores to increasingly dine on preferred vegetation, leading to losses in plant and tree biodiversity. The research used GPS tracking and feeding experiments to measure how fear of predators influences herbivore behavior.
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.
Researchers have developed a new tool to predict how organisms may respond to climate change, focusing on plant and tree species. By combining genetic analyses with computer modeling techniques, scientists identified how well balsam poplar trees are adapted to handle climate change, providing valuable insights into biodiversity.
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 reveals that the Tree Bumblebee prefers built-up areas and is associated with human habitation. The research found that these areas form a large part of their habitat use, setting them apart from other common British bumblebee species.
A study by CTFS-ForestGEO reveals global change effects on forests in 24 countries with 59 monitored sites. Forests have warmed by over 1 degree F and experienced up to 30 percent changes in precipitation.