Articles tagged with Forest Ecosystems
Research at the University of Nebraska-Lincoln shows that invasive plant species like Eastern white pine can accumulate and hold onto nitrogen, leading to increased biomass and productivity. This nitrogen accumulation allows the plants to outcompete native species and invade their habitats.
The USDA Forest Service has established a new 25,000-acre experimental forest in the Tongass National Forest to investigate how climate change affects various forest resources such as timber and salmon habitat. The research aims to understand the impact of climate change on temperate rain forest ecosystems nationwide.
A study by the USDA Forest Service and university scientists found that climate plays a critical role in shaping wildfire behavior, particularly in the Western United States. Climate influences fuel production and drying, which varies among different ecosystems, leading to varying fire sizes and severities.
A new study reveals that decades of fragmentation have taken a toll on the sustainability of Wisconsin's forests, reducing native plant abundance and diversity. The effects of urbanization and agricultural dominance are now determining which species can survive in isolated forest patches.
A Yale analysis of 240 studies found that forest ecosystems recover in 42 years, ocean bottoms in less than 10 years, and those affected by human-induced disturbances recover faster than natural events. The study suggests that restoration can become a key tool for conservation organizations to protect habitats.
Researchers have discovered a new species of carnivorous dinosaur, Hesperonychus elizabethae, in North America. The miniature predator, weighing around two kilograms and standing 50 centimeters tall, was likely to hunt insects and small mammals.
The new protected area covers 187,800 acres of pristine tropical forest in Papua New Guinea's northern coast to interior mountains. The YUS Conservation Area preserves critical habitat for Matschie's tree kangaroos and stores huge amounts of carbon, preventing greenhouse gas emissions.
New research finds hemlock woolly adelgid is killing hemlock trees faster than expected, altering the carbon cycle of these forests. The study suggests that infrequent frigid winter temperatures may not be enough to suppress adelgid populations, leading to rapid decline and mortality.
The US Forest Service has selected two Pohnpeian students, Fa'afo'i Tony Maugalei and John Ah Sue, as part of its Professional Internships in Pacific Terrestrial Island Ecosystem Management program. The program aims to recruit and train the next generation of forestry professionals in the Pacific Islands.
Two Samoan students, Fa'afo'i Tony Maugalei and John Ah Sue, have been selected as part of the US Forest Service's Professional Internships in Pacific Terrestrial Island Ecosystem Management program. They will develop and evaluate an agroforestry project on private lands to demonstrate economically viable forest management methods.
Researchers found a greater diversity of animals in areas with deer populations than without. Higher deer activity creates nutrient-rich soil, attracting insects and larger predators like salamanders and snakes. This complex food web is often overlooked in traditional wildlife management practices.
Research shows that recognizing local rights and tenure systems is cost-effective and can secure carbon credits, while indigenous communities prove to be good forest stewards. Poorly designed initiatives could fuel corruption and conflict.
The Indonesian government and World Wildlife Fund announce a commitment to protect Sumatra's forests and critical ecosystems, home to endangered species. The agreement aims to restore ecosystems and promote sustainable development on the island.
A US Forest Service study reveals that most homeowners in fire-prone areas have taken steps to protect their homes, but barriers such as financial constraints and physical limitations persist. The study also found that residents are concerned about fires and think they know how to reduce the threat.
Researchers at the National Center for Atmospheric Research discovered that plants in a forest produce significant amounts of methyl salicylate, a chemical form of aspirin, in response to stress. This finding has the potential to give farmers an early warning signal about crops that are failing.
A study found that children tend to overestimate the relative numbers of certain taxa, such as mammals and birds, while underestimating others, including social insects and annelids. This knowledge is crucial for inspiring future conservationists.
The EPA report identifies strategies to protect the environment as climate change occurs, using a unique approach that considers management goals for protected areas. The report finds that existing best practices can be applied to reduce the impacts of climate change on ecosystems.
Scientists say conserving biodiversity must consider reducing greenhouse gas emissions from deforestation. A plan to protect forests could shift land use to low-carbon forests and harm other ecosystems important for biodiversity. Conservation efforts may need to focus on less valuable but biodiverse forests and non-forest ecosystems.
A team of 23 scientists examined the effects of controlled burns and forest thinning on western Ponderosa pine ecosystems. They found that tree growth increased after thinning, but with a single canopy layer, while controlled burns had little impact on large trees but harmed smaller ones.
USDA scientists have developed a method to grow high-value koa trees faster while maintaining biodiversity, carbon sequestration, and scenic beauty in native Hawaiian forests. The study's findings show that low-impact silvicultural treatments increase wood production without harming native understory vegetation or bird habitats.
A MU study found that salamanders and frogs evacuated clearcut areas more often than entered, suggesting a behavioral response to habitat changes. This response could improve the chances of amphibian survival in forestry practices.
A study by the Wildlife Conservation Society found that healthy wolf packs can keep coyote numbers in check, leading to higher survival rates for pronghorn fawns. In areas with abundant wolves, only 10% of fawns survived without them, whereas in wolf-free areas, 34% did.
A Yale study finds that predators, rather than plants, determine the type and abundance of herbivores and carnivores in an ecosystem. The research shows how spider hunting modes affect grasshopper behavior, promoting habitat diversity but also depleting nitrogen in the soil.
A new study indicates that preserving coastal ecosystem services doesn't have to be an all-or-nothing approach, and a better understanding of how ecosystems respond in a 'nonlinear' fashion could help reach societal compromises. The researchers used the values and uses of mangrove forests in Thailand as a case study, finding that prote...
The Global Environment Facility is providing an additional $20 million to protect unique and threatened areas like island ecosystems and temperate forests. This funding will support conservation efforts in biodiversity hotspots, home to half of all terrestrial plants and animals.
A new study by Conservation International and the University of Vermont reveals that conserving biodiversity also protects essential ecosystem services like fresh water, food, and carbon storage. The report estimates the annual value of these services to be over $33 trillion.
The Carnegie Institution's Department of Global Ecology will conduct a one-year pilot study on ecosystem diversity in Kruger National Park using remote sensing and the Carnegie Airborne Observatory. This research aims to improve adaptive management and develop skills for park managers to undertake remote monitoring of ecosystems.
A team of researchers explored sub-Antarctic ecosystems to estimate the diversity of tiny bryophytes and lichens, finding a hotspot for these organisms. The study emphasizes the need for conservation strategies that integrate non-vascular plants beyond charismatic mega fauna.
The US has forgiven $26 million in Costa Rican debt to protect the country's tropical forests, with Conservation International and The Nature Conservancy providing additional funding. This is the largest debt-for-nature swap under the Tropical Forest Conservation Act, aiming to slow global warming by protecting carbon-storing ecosystems.
ISU study reveals forests in Upper Midwest have lost tree species diversity and structural complexity since the mid-1800s. Deciduous trees like aspen and birch have replaced conifers, while smaller trees dominate modern forests.
The Brazilian Atlantic forest has lost 95% of its original size, but researchers have found 'refugia' where the forest is still thriving. These regions may hold the secrets to regenerating the ecosystem.
The National Ecological Observatory Network has selected candidate core wildland sites across the United States for deployment, with a focus on understanding climate change and its impacts on ecology. The selected sites will host distributed sensor networks and experiments to record and archive ecological data for at least 30 years.
A study projects that climate change and land conversion will imperil 950 to 1800 bird species by 2100, with tropical birds being particularly vulnerable due to their small ranges. The protection of tropical forests is crucial in mitigating climate change and preserving biodiversity.
A Smithsonian-led research team has won a scientific prize for their study on the impacts of habitat fragmentation on the Amazon ecosystem. The team found that tree communities are rapidly changing in forest fragments due to ecological changes near the margins, posing a significant threat to Amazonian biodiversity.
Research has identified five hotspots of high mercury contamination in fish and birds across eastern North America, posing a risk to human health and wildlife. The study highlights the need for stricter regulations on mercury emissions from coal-fired power stations and municipal waste incinerators to mitigate this environmental threat.
Research reveals that Amazonian forests are undergoing a rapid transformation as a result of fragmentation, leading to the loss of rare and slow-growing tree species. The study found that small, fast-growing trees store less carbon, contributing to global warming.
The Boston College Urban Ecology Institute is developing an urban environmental science curriculum, textbook, and multimedia system for use in America's urban high schools. The project aims to promote the stewardship of healthy urban ecosystems through improved science education.
Harvard University's Harvard Forest has received a $4.9 million grant from the National Science Foundation to study landscape change in New England. The six-year project will examine the drivers and consequences of forest responses to natural and human disturbances, with potential applications for regional land protection and management.
Ecosystem services from boreal forests, including carbon capture and water filtration, are estimated to be worth $160 per hectare, totaling $93 billion/year in Canada. Globally, the value is around $250 billion per year. A natural capital accounting system is recommended to reflect these values.
A new project aims to create fast and sophisticated computer models to understand ecosystem dynamics and value for any spot on earth. The models will help policymakers identify specific ecosystem services and their impacts, enabling informed decisions on land use.
A recent study published in Policy Sciences examines the ethnic differences in job quality among US forest workers. The research reveals that Hispanic workers face more onerous jobs with fewer benefits, including less job security and no health insurance compared to white workers.
Dr. Gene E. Likens and Dr. Steward T.A. Pickett are honored by the Botanical Society of America for their groundbreaking research on acid rain, freshwater ecology, and urban ecology. Their work has informed national legislation and transformed the Institute of Ecosystem Studies into a global leader in ecological research.
A long-term field experiment shows that ecosystems containing many different plant species are more productive than those containing only one species. This research suggests that a return to biodiversity may be key to meeting energy needs and restoring global ecosystems.
A new study reveals that removing top predator species from kelp forests has a profound impact on the ecosystem, while organic coastal run-off has minimal effect. The research suggests California is on the right track with fishing limits to protect the delicate food chain.
The study finds that healthy ecosystems can mitigate the effects of disasters like landslides and floods. Mainstreaming sustainable biodiversity management into policy decisions may reverse ecosystem degradation trends.
The state-and-transition model better explains ecosystem changes, but outdated science can cause serious problems. Scientists need to learn how to spread new knowledge widely through cooperative extension efforts and early adopters.
The Penn State Regional Center will conduct research on climate change's effects on regional terrestrial ecosystems, including the Northeast region with high population density and urbanization. The center aims to develop models predicting climate change impacts and analyze carbon exchange between ecosystems and the atmosphere.
The BP Conservation Programme has announced a new five-year initiative to support global biodiversity conservation. The program has provided annual support to teams of conservationists for 15 years, with past projects describing approximately 25 species new to science and influencing local community environmental awareness.
The June 2005 issue of Frontiers in Ecology and the Environment highlights various ecological concerns, including Chesapeake Bay tributary restoration, community recovery after disturbances, and threats to marine species. Researchers also explore the nutrition link between pathogens and infected hosts.
The Hudson River has seen a doubling of dissolved organic carbon (DOC) in the past 15 years, with possible causes including changes in river materials and bacterial metabolism. This increase may be linked to nitrogen deposition, leading to eutrophication-driven problems such as hypoxia.
A new study reveals that a world without fire would see closed forests more than double in extent, while tropical grasslands and savannas shrink significantly. The findings highlight the crucial role of fire in shaping vegetation and ecosystems worldwide.
Researchers find that invasive trout reduce forest spiders by altering stream food webs, highlighting the impact of species invasions on ecosystem connectivity. The matrix plays a crucial role in determining the effectiveness of corridors and stepping stones in increasing landscape connectivity.
A study by Dr Helen Newing found that government development policies are the main threat to forest conservation projects, rather than local communities. Community-led conservation approaches have been successful in protecting biodiversity, but lack of government support and bureaucratic hurdles hinder their effectiveness.
A new study using computer models found that human activities are the main cause of caribou decline in northern Alberta. The research suggests that if current development rates continue, woodland caribou will be eliminated from the area in 37 years.
Researchers found that summer temperature is the most important variable in predicting fire extent, with increases expected in Montana, Wyoming, and New Mexico. Global warming could lead to more frequent and extensive fires, reducing old forests and habitat corridors for threatened species.
The Baltimore Ecosystem Study (BES) has revealed unexpected patterns and processes in the city's ecosystem, including how plants influence air quality and forest cover affects water quality. Renewed funding will allow researchers to investigate urban ecology discoveries and share findings with educators and decision makers.
The greater sage-grouse and Gunnison sage-grouse are affected by changes in their ecosystems, including the suppression of fire and invasive species. Livestock grazing also impacts these birds, while oil and gas development threatens the sagebrush biome. Researchers discuss restoration options to mitigate these effects.
Research reveals that forests in six locations worldwide struggle with nutrient availability, particularly phosphorus, when soils age. Without disturbances like forest fires or volcanic activity, forests will slowly become impoverished over thousands of years.
A biologist studied the tree hole ecosystem and found that changing factors such as predation, resources, and disturbance alters community composition. The results show that certain species are tolerant of predators, disturbances, or competition, allowing them to coexist in different spatial scales.
Researchers found that under drought conditions, tropical forests and desert ecosystems have similar maximum rain-use efficiency, a measure of total plant growth per unit of precipitation. This discovery indicates an upper limit to ecosystem productivity, which may impact climate change scenarios.