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UrduThis study uses forest inventory data from over 25,000 plots to show that the prevalence of tree pests is jointly controlled by the diversity and phylogenetic composition of forests.
Tag: Trees
How did a tiny bee get to French Polynesia? Eight new species help solve a scientific mystery
In 1934, American entomologist Elwood Zimmerman, then an undergraduate student at Berkeley, participated in the ‘Mangarevan expedition’ to Polynesia.
More and more emerging diseases threaten trees around the world
Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening more and more tree species.
Tree expert on the best times to view fall colors
With autumn set to start Sept. 23, leaf peepers won’t have long to wait for forest leaves to turn and produce spectacular color displays. The vistas to be found in Southwest Virginia are just about guaranteed to be jaw-dropping regardless of the upcoming weather.
How trees influence cloud formation
As part of the international CLOUD project at the nuclear research centre CERN, researchers at PSI have identified so-called sesquiterpenes – gaseous hydrocarbons that are released by plants – as being a major factor in cloud formation.
Why trees outcompete shrubs to shift upward?
Climatic warming is altering the structure and function of alpine ecosystems, including shifts of vegetation boundaries. The upward shift of alpine treelines, the uppermost limit of tree growth forming the boundary between montane forest and alpine communities, is strongly modulated by shrub-tree interactions. But little is known on the responses of such coexisting life forms to a warmer climate.
Climate-stressed trees get a boost from new microbial partnerships
Plants live across wide ranges of heat and cold and rain and drought, but they don’t fill their niches alone. Along with the animals and insects that live on and around a tree — pitching in now and then to aid pollination or pest control or seed dispersal — there are innumerable microbes in the soil (like various fungi that grow alongside tree roots). These microbes can blunt the normal stresses of life by helping trees draw in more nutrients and water or influencing the time they leaf out or flower to best match seasonal conditions.
Smartphone Use Goes Up in City Parks, But Down in Forests
New research shows that smartphone activity actually increases during visits outdoors to city parks—a finding that contradicts popular notions. Thanks to two years of unparalleled access to 700 study participants’ smartphone data, the study is the first to show that young adults now spend far more time on their smartphone screens than in nature. The study finds that people who visit forests or nature preserves experience significant declines in screen time, compared to visits to urban locations for the same duration.
How to Keep Allergies from Taking the Zing Out of Your Child’s Spring: Johns Hopkins Children’s Center Experts Available
Spring has arrived. The new season is bringing budding trees and blossoming flowers, along with runny and stuffy noses, sneezes and itchy, watery eyes.
Horticulture expert addresses plant resiliency as seasons change
A West Virginia University expert is offering insights on the effects lingering winter weather and fluctuating temperatures could have on trees, shrubs and flowers heading into the official start of spring on Monday, March 20. Mira Danilovich, associate professor with…
Exposure to green space linked to reduced risk of postpartum depression
In an analysis of more than 415,00 electronic health records of healthy, full-term births in Southern California, a team of researchers led by the University of California, Irvine determined that exposure to green space and tree coverage was associated with a decreased risk of postpartum depression among mothers.
Climate Change Likely to Uproot More Amazon Trees
Tropical forests are crucial for sucking up carbon dioxide from the atmosphere. But they’re also subject to intense storms that can cause “windthrow” – the uprooting or breaking of trees. A new study finds that more extreme thunderstorms from climate change will likely cause a greater number of large windthrow events in the Amazon, which could impact the rainforest’s ability to serve as a carbon sink.
The first trees: Preserving ‘the world’s oldest forest’ in Upstate New York
Researchers from Binghamton University are working to preserve the world’s oldest forest, located in researchers from Binghamton UniversityCairo, N.Y.
Tree Species in one of World’s Most Diverse Conifer Forests Not Migrating Uphill Fast Enough
The trees in Northern California’s Klamath Mountains are not keeping up with climate change. Instead, many tree species are in decline, losing the race due to climate warming and decades of fire suppression.
WVU Extension experts provide tips for safely using a chainsaw
Chainsaws are an excellent tool used by landowners to help them keep their land clean throughout the summer. West Virginia University experts are available to provide safety tips for operating a chainsaw without experiencing injuries.
Chula’s Faculty of Engineering Pioneers the Use of Gamma Rays to Inspect Large Trees
Lecturers of the Faculty of Nuclear Technology at the Faculty of Engineering, Chulalongkorn University have developed a special device for scanning trees to determine trunk density and hollowness to prevent accidents from fallen trees and also as a way to conserve large trees in urban areas.
Is there snow in that tree? Citizen science helps unpack snow’s effect on summer water supplies
To investigate what happens to snow intercepted by trees, UW researchers created a citizen science project called Snow Spotter.
Exotic tree plantations can disturb local wildlife, researchers find
Initiatives using non-native tree species can impact tropical insects in neighbouring forests, according to an international study.
Capturing carbon with crops, trees and bioenergy
An integrated approach to land management practices in the U.S. can reduce carbon dioxide in the atmosphere far more than earlier estimates based on separate approaches, Michigan State University researchers say. Their research was published in the journal Global Change Biology.
The space between us
Tree beta diversity — a measure of site-to-site variation in the composition of species present within a given area — matters more for ecosystem functioning than other components of biodiversity at larger scales. The finding has implications for conservation planning.
UCI becomes two-time recipient of STARS Platinum rating for sustainability efforts
For a second time, the University of California, Irvine has achieved a rare platinum rating through the Association for the Advancement of Sustainability in Higher Education’s Sustainability Tracking, Assessment & Rating System, maintaining its status as one of the environmentally outstanding universities in the world.
California’s carbon mitigation efforts may be thwarted by climate change itself
Irvine, Calif., July 22, 2021 – To meet an ambitious goal of carbon neutrality by 2045, California’s policymakers are relying in part on forests and shrublands to remove CO2 from the atmosphere, but researchers at the University of California, Irvine warn that future climate change may limit the ecosystem’s ability to perform this service.
Throwing shade: Measuring how much trees, buildings cool cities
A new study is the first to calculate exactly how much shaded areas in cities help lower the temperature and reduce the “urban heat island” effect.
Iconic bird makes its home on campus
With its tree-laden campus and adjacent protected natural reserves, UCI enjoys being home to a great variety of bird species. One particular raptor continues to capture the attention of the many avid birders in Orange County: the white-tailed kite. This iconic bird of Orange County – named for its ability to hover in the air while hunting –nearly went extinct throughout California in the early 1900s due to human-related threats.
Rutgers Expert Available to Discuss 17-Year Cicadas in N.J.
New Brunswick, N.J. (March 18, 2021) – Rutgers University–New Brunswick entomologist George C. Hamilton is available for interviews on the upcoming emergence of 17-year cicadas in New Jersey. The big, noisy insects appear suddenly in late May or early June. “This spring, we will…
“Ghost Forests” Expanding Along Northeast U.S. Coast
Why are “ghost forests” filled with dead trees expanding along the mid-Atlantic and southern New England coast? Higher groundwater levels linked to sea-level rise and increased flooding from storm surges and very high tides are likely the most important factors, according to a Rutgers study on the impacts of climate change that suggests how to enhance land-use planning.
Living near Trees May Prevent Vascular Damage from Pollution
Living near an abundance of green vegetation can offset the negative effects of air pollution on blood vessel health. The first-of-its-kind study is published ahead of print in the American Journal of Physiology-Heart and Circulatory Physiology.
Rutgers Experts Can Discuss Invasive Spotted Lanternfly Spread in N.J.
New Brunswick, N.J. (Oct. 1, 2020) – Rutgers University–New Brunswick Professor George C. Hamilton and Associate Professor Anne L. Nielsen can discuss the spread of and threat posed by the invasive spotted lanternfly, a destructive pest, in New Jersey. “Their…
Rutgers Experts Can Discuss Fall Foliage Outlook in N.J.
New Brunswick, N.J. (Sept. 23, 2020) – Rutgers University–New Brunswick climatologist David A. Robinson and tree expert Jason Grabosky are available for interviews on the outlook for the fall foliage season in the Garden State. “Seasonable temperatures, including some cool nights, and adequate rainfall during…
Rutgers Experts Can Discuss Tropical Storm Isaias Threats, Record N.J. Warmth in July
New Brunswick, N.J. (Aug. 4, 2020) – Rutgers University–New Brunswick climatologist David A. Robinson and meteorologist Steve Decker are available for interviews on the outlook for Tropical Storm Isaias in New Jersey and the record warmth in July. “Isaias has the potential…
Geoengineering’s Benefits Limited for Apple Crops in India
Geoengineering – spraying sulfur dioxide into the atmosphere to combat global warming – would only temporarily and partially benefit apple production in northern India, according to a Rutgers co-authored study. But abruptly ending geoengineering might lead to total crop failure faster than if geoengineering were not done, according to the study – believed to be the first of its kind – in the journal Climatic Change.
How to Tackle Climate Change, Food Security and Land Degradation
How can some of world’s biggest problems – climate change, food security and land degradation – be tackled simultaneously? Some lesser-known options, such as integrated water management and increasing the organic content of soil, have fewer trade-offs than many well-known options, such as planting trees, according to a Rutgers-led study in the journal Global Change Biology.
Large boreal peatland complexes near their southern range limit are likely threatened by warmer climate
In the Adirondacks, the black spruce, tamarack, and other boreal species are being overcome by trees normally found in warmer, more temperate forests. These invaders could overtake a variety of northern species, eliminating trees that have long been characteristic of Adirondack wetlands.
Effects of Potassium Fertilization in Pear Trees
Potassium fertilization effects on quality, economics, and yield in pear orchard
Mangrove Trees Won’t Survive Sea-Level Rise by 2050 if Emissions Aren’t Cut
Mangrove trees – valuable coastal ecosystems found in Florida and other warm climates – won’t survive sea-level rise by 2050 if greenhouse gas emissions aren’t reduced, according to a Rutgers co-authored study in the journal Science. Mangrove forests store large amounts of carbon, help protect coastlines and provide habitat for fish and other species. Using sediment data from the last 10,000 years, an international team led by Macquarie University in Australia estimated the chances of mangrove survival based on rates of sea-level rise.
Global Environmental Changes Leading to Shorter, Younger Trees
Ongoing environmental changes are transforming forests worldwide, resulting in shorter and younger trees. Researchers found that a range of factors, including rising temperatures and carbon dioxide levels, have caused a dramatic decrease in the age and stature of forests.
Don’t Look to Mature Forests to Soak up Carbon Dioxide Emissions
Mature forests are limited in their ability to absorb “extra” carbon as atmospheric carbon dioxide concentrations increase. These findings may have implications for New York state’s carbon neutrality goals.
Maintaining momentum: WVU researchers promote maple syrup production through education
A team of West Virginia University experts wants to educate landowners, foresters and loggers on the nuances of southern sugarbush management.
Rutgers Expert Available to Discuss Climate Change Impacts on Land, Wildfires and Solutions
New Brunswick, N.J. (Jan. 15, 2020) – Rutgers University–New Brunswick Professor Pamela McElwee is available for interviews on climate change impacts on land, including increasing wildfires such as in Australia and California, and solutions. She is scheduled to testify before…
Modern trees emerged earlier than previously believed, new research reveals
A research team led by faculty at Binghamton University, State University of New York has uncovered evidence that the transition toward forests as we know them today began earlier than typically believed.
Nature might be better than tech at reducing air pollution
Adding plants and trees to the landscapes near factories and other pollution sources could reduce air pollution by an average of 27 percent, new research suggests.
The study shows that plants – not technologies – may also be cheaper options for cleaning the air near a number of industrial sites, roadways, power plants, commercial boilers and oil and gas drilling sites.
In fact, researchers found that in 75 percent of the counties analyzed, it was cheaper to use plants to mitigate air pollution than it was to add technological interventions – things like smokestack scrubbers – to the sources of pollution.
Lost trees hugely overrated as environmental threat, study finds
Cutting down trees inevitably leads to more carbon in the environment, but deforestation’s contributions to climate change are vastly overestimated, according to a new study.
Planting a trillion trees will not halt climate change
A group of 46 scientists from around the world, led by Joseph Veldman, Ph.D., assistant professor in the Department of Ecosystem Science and Management in the College of Agriculture and Life Sciences at Texas A&M University, are urging caution regarding plans to address climate change through massive tree planting.
UK Partners With Bourbon Industry Leaders to Map White Oak Genome
Bourbon isn’t bourbon without the mighty white oak. Distillers have been aging bourbon in oak barrels as far back as the Roman Empire. Oak barrels give bourbon its unique caramel, vanilla, nutty and toasted flavors. Kentucky distillers rely especially on the white oak. But what if disease hits the species? How would industry professionals protect it? The University of Kentucky College of Agriculture, Food and Environment is partnering with Maker’s Mark Distillery Inc. in Loretto, Kentucky, and Independent Stave Company to research the DNA of the white oak.
Rutgers Expert Can Discuss Fall Foliage in New Jersey
New Brunswick, N.J. (Oct. 17, 2019) – Rutgers University–New Brunswick tree expert Jason Grabosky is available for interviews on this year’s fall foliage season in the Garden State. “Generally speaking, the recent hot dry weather has muted some of the…
Rutgers Expert Can Discuss Exceedingly Dry, Warm September in N.J.
New Brunswick, N.J. (Oct. 3, 2019) – Rutgers University–New Brunswick Professor David A. Robinson, the New Jersey State Climatologist, can provide insight on one of the driest and warmest Septembers in New Jersey since record-keeping began in 1895. Last month was the sixth driest September…