Articles tagged with Trees
The US Forest Service study found that New Hampshire has the highest percent tree cover (89%) and Connecticut has the highest urban tree cover (67%). Urban forestry is essential for sustaining urban forests, which provide environmental benefits such as air pollution reduction and heat island mitigation.
Research reveals invasive scale insect Aulacaspis yasumatsui causes near-total mortality in Cycas micronesica, highlighting critical importance of empirical studies for conservation efforts.
Researchers studying live oaks in eastern North America aim to understand how trees adapted to climate change during glacial periods. They believe that genetic changes, rather than extensive morphological alterations, allowed oaks to migrate and thrive in colder climates.
Researchers found that moths search for a spot to rest and adjust their body orientation to become nearly invisible to birds. The insects' behavior suggests they have an active choice of a resting spot that makes them visually camouflaged.
A recent study published in Nature highlights the challenges facing tropical protected areas, but also shows that long-term engagement with conservation can have positive results. Conservation efforts in Tanzania's Udzungwa mountains have paid dividends, with the reserve remaining relatively unchanged from a biodiversity point of view.
Research suggests that active management of forest lands in high-fire-risk areas can improve forest health and reduce the threat to the northern spotted owl. The study found that over a long-term period, managing sites with high fire hazard would be more favorable for spotted owl conservation.
Researchers discover high genetic diversity in lichens growing on trees in Norway's boreal rainforests, challenging assumptions about species' ability to spread and survive. The findings suggest that even in small fragments of habitat, genetic material can be exchanged between neighboring populations.
Amanita mushroom evolution shifts from decomposing to symbiotic tree relationships, resulting in lost genetic capacity, according to Harvard researchers. The study reveals the transition came at a steep price, with genes associated with breaking down cellulose being sacrificed.
The US Department of the Navy has initiated a project to conserve the fadang tree species in Guam, with over 90% of trees killed by invasive insects. The partnership between the Navy and University of Guam aims to develop strategies for successful cycad transplantation and conservation.
Researchers have developed a simple, low-cost method to synthesize silver nanoparticles using strawberry tree leaf extract. The technique allows for control over nanoparticle size and geometry, resulting in stable particles that remain effective for up to 6 months.
A University of Illinois researcher is testing a new model for conservation that involves raising awareness among private landowners about invasive species and providing strategies for moderate livestock grazing and controlled burns. The goal is to promote the growth of native wildlife habitats in the Grand River Grasslands, which has ...
Researchers from Germany, Finland, and beyond create a high-resolution temperature reconstruction of the Roman and Medieval Warm periods, revealing a previously unseen long-term cooling trend. The study, published in Nature Climate Change, suggests that this cooling trend may have been underestimated by previous climate reconstructions.
Researchers used human parkour athletes to simulate orangutan movements and found that swaying is the most efficient way to cross trees. This finding helps explain why orangutans spend most of their lives in trees despite their large size and low-energy diet.
A massive die-off of pinyon pine and juniper trees in the Southwest threatens to unleash devastating soil erosion and exacerbate water scarcity in the Colorado River basin. The trees' loss is expected to lead to increased dust storms, melting snowpacks, and reduced river flows.
Researchers found that mesquite biomass can be a viable option for bioenergy use, with the potential to offset higher harvest and transport costs. The study estimated costs of delivered biomass at $347-561 per acre, depending on the density and harvesting scenario.
Researchers found that neurons follow a simple pattern described by a power law, which explains their tree-like shape and efficient wiring. This pattern is supported by the growth of newborn olfactory neurons in the adult brain.
Zacharie Tchoundjeu, a forestry conservationist in Cameroon, and Martha Ruiz Corzo, an environmental activist in Mexico, win the National Geographic/Buffett Award. They are recognized for their outstanding work in conservation and community-based management of protected areas.
Scientists will analyze satellite pictures, airplane data, and tree core samples to determine how trees respond to longer growing seasons. This study aims to understand whether faster-growing trees are taking more carbon dioxide from the atmosphere, a positive factor in combating global warming.
Retention forestry is a management practice that deliberately leaves selected trees standing during harvesting, reducing ecological simplification and preserving natural forest complexity. It brings benefits such as maintaining ecosystem services, increasing public acceptance, and ensuring habitat continuity.
Researchers will create an open, dynamic evolutionary framework to continuously update the tree of life, incorporating new biodiversity data. Computational tools will enable scientists to visualize and analyze the entire tree, facilitating comparative biology research and discovery of new medicines.
A recent report synthesizes published studies on the impact of bark beetles on wildfires, revealing that tree mortality can indeed affect fuels and fire behavior. However, the extent of these effects depends on various factors, including the time since the outbreak and the type of fuel or fire characteristic being studied.
A new study finds that bark beetles infesting pine trees can release up to 20 times more VOCs, contributing to haze and air pollution in forested areas. This could harm human health, reduce visibility, and affect climate.
A new study found that beetle-infested pine trees release up to 20 times more VOCs than healthy trees, contributing to haze and air pollution. The research suggests that the bark beetle epidemic could lead to higher monoterpene concentrations in the air, harming human health and impacting climate.
A team of scientists, including U-M's Stephen Smith, will attempt to complete the first rough draft of the entire tree of life in a three-year project. The Open Tree of Life project aims to enable scientists to interpret evolution patterns and predict responses to environmental change.
A team of Indiana University biologists has shown that species diversity is maintained on a spatial scale of unparalleled scope due to the survival of tree seedlings under their own parents. This discovery highlights the role of conspecific negative density dependence in driving diversity from boreal forests to sub-tropical forests.
A team from CREAF has analysed the ages of famous olive trees and found one that is 627 years old, much younger than previously thought. This study used classic dendrochronology methods and can also be useful for reconstructing climatic conditions.
A new study reveals that just a handful of heavyweight trees per acre are responsible for nearly half the biomass in a temperate forest, highlighting their crucial role in photosynthesis and carbon sequestration. The research found that these large trees can dominate even when dead, with snags accounting for 60% of total biomass.
Participatory agroforestry has restored land and secured the food supply in DPR Korea, increasing tree cover and productivity. The user groups' involvement and rights-to-use agreements contributed to the project's success.
Three new rootstocks, Zentmyer, Steddom, and Uzi, have demonstrated superior tolerance to Phytophthora root rot (PRR), a devastating disease affecting avocado production globally. The rootstocks offer improved yields and salt tolerance, enabling growers to manage PRR effectively.
A new study found that common native red oak seedlings grow eight times faster in New York's Central Park due to urban heat levels. This phenomenon could have implications for changing climate and forest composition over a wide region. The research suggests that warmer temperatures, especially at night, can promote tree growth.
The article suggests that preventative measures are most effective in managing bark beetles, which can be controlled naturally by environmental factors. Maintaining a diversity of healthy tree species and adequate spacing between host trees reduces the likelihood of beetle outbreaks.
Preliminary data suggests that neem compounds target the HIV protease, a protein essential for virus replication. Researchers hope that further studies will validate these findings and lead to new HIV-AIDS therapies.
The university is launching a new initiative to advance desert agriculture using an olive tree forest planted in Wadi Mashash. The project aims to produce food, cash crops, and sustainable farming practices.
A new study reveals that genetically improved loblolly pines have increased carbon uptake and stem-wood production, with 17% and 13% increases respectively, over a 40-year period. This enhancement of the trees' ability to act as carbon sinks is expected to mitigate climate change.
A recent study found that tree nut consumers had lower body weight and a lower prevalence of metabolic syndrome, high blood pressure, and low HDL-cholesterol levels. This suggests that incorporating tree nuts into one's diet may be beneficial for overall health.
A University of Missouri research team is conducting a two-year study to reclaim developed flood plain land and keep waterways free of pollutants. The project uses 777 willow trees to filter water and potentially produce a cash crop for farmers.
A recent study by Harvard University and the Smithsonian Institution found that development in Massachusetts could reduce forest carbon storage by 18% over the next half century. However, the researchers highlight the importance of expanding support for forestland protection to mitigate climate change.
Researchers from the University of Adelaide have discovered that pollen diversity is limited in mahogany forests due to extensive exploitation, affecting seedling growth and forest re-growth rates. The study suggests that collecting high-quality seeds from healthy trees could improve restoration efforts.
Researchers at the University of Guelph have cloned American elm trees that survived Dutch elm disease epidemics, offering a potential model for preserving endangered plant species. The breakthrough could help reintroduce disease-resistant trees and conserve thousands of other endangered species.
A study published in Canadian Journal of Forest Research uses shoot buds from a century-old American elm to develop an in vitro conservation system, potentially providing disease resistance for future plantings. The culture system has been used successfully to establish a repository representing 17 mature American elms from Ontario.
A recent study found that human noise has indirect effects on plants, benefiting some species like scarlet gilia while harming others like piñon pine. The study's findings suggest that noise can alter pollination patterns and affect seed production, with consequences that may last for decades.
A recent study by USDA Forest Service researchers found that removing the invasive Tamaligi tree greatly improves the health of its diverse native forests in American Samoa. Native tree species quickly recover and persist after control efforts, while biomass levels are restored to equivalent pre-invasion levels.
A study reveals that manmade noise has indirect effects on plants, with some species benefiting and others being harmed. Noise levels can influence the number of pollinator visits, pollen transfer, and seed production in certain plant species, highlighting the ripple effects of human activity on the natural world.
Researchers used NEWGARDEN software to determine optimal founder placement and dispersal for maximum population growth and genetic diversity. The study found that planting trees 1,500 meters into a preserve can result in up to 247% more trees in 101 years' time.
Researchers found that mesquite trees and woody shrubs outperform grasslands in coping with heat and water stress, despite being less adapted physiologically. The study suggests that deep roots allow mesquites to access groundwater inaccessible to shallow-rooted plants.
Researchers found pine beetles can breed twice a year, leading to up to 60 times more beetles attacking trees annually. Warmer temperatures also allow beetles to survive and attack trees with previously developed defenses.
The Northern Forests Futures Project reports a 28% increase in forest coverage in the northern US, benefiting from carbon emissions collection and forestry jobs. However, threats to forests in the coming decades could undermine these gains due to invasive plants and diseases.
University of California, San Diego engineers build nanowire 'trees' that capture solar energy and convert it into hydrogen fuel. The trees' vertical structure maximizes energy absorption, making them more efficient than traditional flat surfaces.
Research reveals that some Scandinavian conifers survived the harsh ice age climate in small ice-free pockets for tens of thousands of years. The study found two distinct types of spruce trees with different histories, which could have economic significance for tree plantation owners.
Researchers from Binghamton University and Cardiff University have discovered the floor of the world's oldest forest in a cover article in Nature. The ancient site, dating back 385 million years, provides new insights into modern-day forests and their impact on climate change.
A team of researchers has discovered an entire fossil forest in upstate New York, revealing the oldest known tree stumps and new insights into the evolution of forests. The 385-million-year-old Gilboa fossil forest contains hundreds of large tree stumps with preserved roots, offering a glimpse into the Earth's ancient ecosystems.
The Mercyhurst research aims to assess the hemlock woolly adelgid's cold tolerance and predict its impact on Eastern US forests. The project will monitor environmental conditions across 20-25 hemlock stands in Pennsylvania, identifying factors that affect winter survival.
A study by the USDA Forest Service found that tree cover in US cities is declining at a rate of 4 million trees per year, mainly due to impervious cover and natural disasters. The greatest losses were seen in New Orleans, Houston, and Albuquerque, highlighting the need for comprehensive tree planting programs.
A 300-million-year-old tropical forest was discovered and characterized by a Penn researcher, providing insight into the ecology and climate of its time. The researchers found six groups of trees, including tree ferns, Sigillaria, and Cordaites, which were preserved in volcanic ash.
Researchers from Notre Dame and two universities are studying the impact of speciation on parasitic wasps and their fruit fly prey. The study may help control pests in orchards, saving the apple industry millions annually.
A recent study examines ash tree removal and pesticide options to minimize urban forest loss due to Emerald Ash Borer infestations. The results show that insecticide treatments retain greater urban forest value, while preemptive removal without replacement is the least expensive option.
Climate researchers found that tree-ring reconstructions of temperature change may underestimate the climate response to past volcanic eruptions. The study compared tree-ring temperature reconstructions with model simulations and found a significant discrepancy in the response to three large tropical eruptions.
Yellow-cedar trees are dying off across large areas in Alaska and British Columbia due to root freezing caused by reduced snow and cold temperatures. The tree's shallow roots make it vulnerable to freezing injury, leading to its decline. Conservation strategies are needed to protect the species.
Researchers found that birds prioritize specific tree species over others when searching for caterpillars, with the healthiest trees harboring the most caterpillars. This preference puts caterpillars at a higher risk of predation.
A recent study analyzed data from tree species censuses and fossil evidence to chart diversity in rainforests. The results show that variation in species richness among families is very similar across tropical forests, suggesting that community structure in rainforests cannot be attributed to stochastic factors.