Researchers found steady, light rain in central Pacific during El Niño, which differs from thunderstorms. This type of rain affects air movement and jet stream patterns, leading to improved rainfall forecasts worldwide.
Researchers tested ancient tree species to disprove the carbon loss hypothesis, which suggested deciduous trees had an advantage in polar forests. The study found that deciduous trees actually lose more carbon than evergreen trees, challenging the long-held theory.
Researchers challenge a recent study's estimate of greenhouse gas emissions from tropical deforestation, citing seven serious errors that lead to a major underestimate. The Achard study failed to account for drier forests, biomass, and the effects of methane and nitrous oxide.
Forest thinning may improve plant diversity and support animal habitats if done correctly, according to USGS-funded research. The study found that selective thinning of dense young forests can promote the growth of hardwoods, large trees, and old-growth characteristics.
The Tumucumaque Mountains National Park, covering 9,562,770 acres, protects pristine forests and endangered species like jaguars, giant anteaters, and harpy eagles. The park ensures the conservation of biodiversity in the Brazilian Amazon.
Acid rain is harming wood thrush populations, with declines of up to 5% annually in regions with high acidity. The decline may be related to leaching of calcium from the soil, affecting food availability and breeding success.
A new study reveals acid rain's damage to American forests is more widespread than believed, potentially creating compromised immune systems in trees. The study suggests that acid rain can suppress the capacity of trees to survive environmental stresses, with far-reaching consequences for forest ecosystems and wildlife.
New research suggests that acid rain can deplete the nutrient pool available to trees in forests, making them more vulnerable to acid rain's effects. This finding has important implications for industrially influenced forests in the northeastern United States and Europe.
Researchers at Duke University found that density-dependent mortality plays a role in promoting tree species diversity, just like in tropical forests. Their study suggests that preserving natural enemies is crucial for maintaining tropical diversity.
A recent study by Penn State researchers found that urban forest fires have led to increased tree density of specific species in New York City's undeveloped parklands. In contrast, an old-growth urban forest in Cleveland, Ohio, has remained stable with no history of forest fires since 1935.
A study by Ohio State University researchers found that farming inside forests reduces bird diversity and nesting success compared to timber harvesting. The study's results suggest that small agricultural openings can have a significant impact on bird populations.
Researchers have recalculated the amount of carbon dioxide released from tropical forests into global waterways, finding that it is triple the current estimate. The new total is comparable to a fifth of human activities' carbon dioxide emissions, challenging the notion that forests are carbon sponges.
New research suggests that unpolluted forests may exhibit more uniform nitrogen biogeochemistry than previously thought, with complex and idiosyncratic responses to human activities. This challenges long-held assumptions about the ecological function of forests near populated regions.
Levels of nitrogen and sulfuric acid have decreased moderately in some Adirondack lakes, suggesting a decline in acidic levels. Long-term data is needed to confirm the changes and understand the underlying causes.
A NASA-funded study reveals that ancient South American forests hold the key to understanding US ecosystems before the industrial revolution. The study finds complex organic compounds as the main form of nitrogen in unpolluted ecosystems, contradicting previous beliefs about inorganic nitrogen.
Researchers found a wide swath of the western Amazon has a forest with minimal species change over distances of over 1000 kilometers. In contrast, forests on the Isthmus of Panama exhibit high beta-diversity due to abrupt variation in rainfall across the Central American isthmus.
A Princeton University study reveals that South American forests offer a glimpse into pre-industrial US ecosystems, showing complex organic compounds as the main form of nitrogen in unpolluted ecosystems. The findings suggest that high levels of inorganic nitrogen in the US are mainly due to acid rain and agricultural fertilizers.
Researchers question the efficacy of prescribed burning in reducing large, intense forest fires. They argue that this technique is not suitable for closed-canopy forests and shrublands where natural fires are more frequent and severe. This approach can also have negative ecological consequences.
The TRMM satellite is continuing to collect data on various climate and weather questions, including the formation of snowflakes and raindrops inside clouds. Microscopic dust and soot particles are found to interfere with rain formation in 'dirty' clouds.
A new study suggests that lowland deforestation may be robbing mountain cloud forests of critical cloud cover, threatening their survival. Breaking up deforested land into a mosaic of uses can help restore cloud formation.
New satellite-generated rain maps provide more accurate tropical rainfall measurements, helping manage water resources and understand El Niño-La Niña patterns. The TRMM satellite's high-resolution data also enables better weather forecasting and climate projections.
Hawaii's dry forests require more than just grazing removal to regenerate; invasive species like non-native rodents and fountain grass also play a significant role. Active management is necessary to control these invaders and reintroduce native species, say researchers.
Researchers found that a soil pathogen in temperate forests kills most black cherry seedlings within a few meters of their parent tree. This allows other species to take root and increase forest diversity. The study suggests microbial pathogens play a crucial role in shaping forest communities.
A study found that male mangabeys in secondary forests weigh less and are more likely to leave their groups, making them vulnerable to predators. The research suggests that logging may impact the health and behavior of primates in African forests.
Dutch researchers use calculations to show that tubular-shaped vortices can form within areas of air turbulence, causing water droplets to congregate at the edge and leading to rain precipitation. This discovery contradicts previous assumptions about cloud formation and supersaturation.
Researchers have found that smoke from forest fires practically shuts off the 'warm rain' processes that create rain in tropical clouds. The cloud tops must grow above the freezing level for an alternative mechanism to start producing rain. This study, based on TRMM data, provides direct evidence of the impact of smoke on rainfall.
Lemurs play a vital role in dispersing seeds for tree species in Madagascar's dry forests, which would otherwise fail to regenerate without them. The study found that the brown lemur is responsible for dispersing most of these species, highlighting the importance of reintroducing lemurs and reducing fragmentation.
Logging in tropical forests has sparked a 'deadly second harvest' of wildlife, including gorillas and elephants, with increased access providing markets for bushmeat. The Wildlife Conservation Society estimates that annual bushmeat harvest exceeds one million metric tons.
Researchers study old-growth forests' carbon, water, and energy exchange to understand their role in global climate change. The project aims to provide baseline information on managed ecosystems' impact on global carbon budgets.
A sensor measuring raindrop energy may soon warn farmers of potential crop disease outbreaks. Early results show that the sensor can explain how rain spreads fungal spores causing some crop diseases.
A Guatemalan forest has been identified as the world's most diverse home of slime molds, with over 1,000 species collected by Ohio University researcher James Cavender. The discovery highlights the importance of these ancient organisms in maintaining soil health and fertility.
A study by Duke University researchers found that selectively logged Indonesian rainforests have comparable levels of tree species diversity to unlogged forests eight years later. The results suggest that these forests are more resilient than previously thought and may hold conservation potential.
A new study by botanists at the University of Georgia shows that trees left standing in pastures can dominate reproduction in nearby remnant forests, creating a genetic bottleneck. The research indicates that tropical forest survival may be more complex than known, requiring new conservation strategies.
A Penn State research team has found that small-scale fires play a crucial role in shaping forest structure. By analyzing aerial photographs from 1941 and 1993, the researchers determined that topography is key to understanding natural variability and restoring diverse fire regimes in Northern California.
Scientists from Canadian Forest Services found that Canada's forests have shifted from a carbon sink to a source, primarily due to changes in disturbance regimes related to climate change. Strict carbon accounting is necessary to determine whether boreal forests can mitigate atmospheric carbon dioxide.
A new biodiversity theory suggests that protecting ecotones along rainforest periphery is crucial for preserving biodiversity. Ecotones, the transition zones between rainforests and savannas, may be integral to generating biodiversity in tropical rain forests.
A comprehensive 23-year study of the Kibale rain forest in Uganda reveals that heavy logging severely reduces species diversity and hinders forest recovery. Sustainable logging is only viable if tree falls are spaced far apart, limited to large trees, and harvested with minimal machinery.
High-volume logging in Central Africa threatens unique forests and wildlife like gorillas and elephants, WCS warns. The U.S. needs to increase funding and presence to protect the region's forests, according to Wildlife Conservation Society expert Michael Fay.
Valery Terwilliger's research on plant growth in Central America aims to inform reforestation efforts and capitalize on native species. The study reveals how well plants use carbon dioxide and water in tropical forests, which can aid in restoring lost ecosystems.
Researchers are investigating the history of forests, fire incidence, and signs of early settlers in the Lake Tahoe Basin due to a bark beetle infestation. The study aims to reconstruct the forest structure before logging, the history of fire in the area, and the age of trees.