Articles tagged with Rainforests
Market-driven 'zero deforestation agreements' have significantly influenced the behavior of ranchers and slaughterhouses, leading to lower deforestation rates among supplying ranches. However, challenges remain to achieve zero-deforestation for beef production, with many ranchers able to bypass the agreements.
Research reveals that selectively-logged tropical forests, which account for 30% of global rainforests, contain up to 64% dead wood, leading to increased carbon emissions. This study suggests that a large proportion of forests worldwide are less sinks and more sources of carbon dioxide.
A recent study reveals that human activity has removed over one-tenth of trees and plants from the Amazon since the 1960s, contributing to rising carbon dioxide levels. The deforestation has increased the atmosphere's carbon content by 1.5% since the mid-19th century.
A study by University of Bonn researchers finds that effective forest law enforcement has been key to slowing down the destruction of the Brazilian rainforest. The team's analysis shows that regions with frequent controls and high penalties have seen significant declines in deforestation.
Researchers detect human fingerprint of industrial pollutants in Borneo rainforest, revealing impact on ozone layer and forest health. Air pollution from East Asia affects air quality in equatorial Southeast Asia, introducing chemicals to the stratosphere.
A new study reveals that early modern humans relied heavily on the rainforest for their diet, contradicting the long-held assumption that they avoided tropical forests until around 12,000 years ago. The research analyzed teeth dating back 20,000 years and found that nearly all individuals had a diet sourced from the rainforest.
A new study shows that Brazil's Soy Moratorium has been effective in reducing deforestation, but government policies alone are not enough. The moratorium helped drastically reduce soy expansion linked to forest clearing, whereas governmental policy alone only curbed a small portion of the issue.
A recent study revealed that the Nigeria-Cameroon Chimpanzee subspecies has a more complex evolutionary history than previously thought, with three distinct populations found in central Cameroon. The research also suggests that climate change could cause significant harm to chimpanzee populations due to habitat alterations.
Researchers discovered that despite cultural differences, listeners from various groups responded similarly to the excitement and calmness of music. The study used emoticons and physiological measurements to compare reactions to Western and Pygmy music.
In a paper published in Human Organization, UC Santa Barbara anthropologist Jeffrey Hoelle examines the rise of cattle ranching in the Brazilian state of Acre. He argues that cattle culture emerged as a result of local economic relationships, which developed cultural beliefs based on interdependence with animals.
Scientists have identified 30 new spider species in the Xishuangbanna tropical rainforest, a significant find considering the region's rich biodiversity and untouched terrain. This discovery underscores the importance of preserving these ecosystems, which are home to numerous untapped species.
A rare new plant species, Stachys caroliniana, has been discovered in two locations near Charleston, S.C., with the discovery shedding light on its unique characteristics. The species was found to be different from its closest relatives, which are commonly known as hedge-nettles or woundworts.
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.
The Helmholtz Centre for Environmental Research found that forest fragmentation results in up to a fifth more carbon dioxide being emitted by vegetation, with an estimated loss of over 68 million tonnes of carbon in the Brazilian Atlantic Forest in ten years.
Researchers found that most young tropical trees grow spatially independent from their parent trees, giving generalist species an edge. This pattern supports the neutral theory, which suggests that random processes shape tree behavior in species-rich forests.
Deforestation in Brazil has been linked to roads built across forests and agricultural expansion, particularly in states of Mato Grosso and Pará. The removal of forestland is converted to farms, ranches, or urban use, with the Brazilian national motorway BR 163 contributing to deforestation.
Researchers found that the pygmy phenotype in Africa and Southeast Asia is a result of multi-gene adaptation, making individuals better suited for their challenging environments. The study suggests that this adaptation may have occurred independently in different regions.
A CU-Boulder-led team has discovered fossils of a tiny, unknown hedgehog species, Silvacola acares, approximately 2 inches long. The ancient creature was found in north-central British Columbia and provides insights into the evolution of North American mammal communities during the Early Eocene Epoch.
A new study has found that the Western Amazon is contaminated with oil pollutants, posing a significant risk to its unparalleled biological and cultural diversity. The research, published for the first time, reveals high levels of lead, mercury, and cadmium in wastewater samples from 18 sites in 10 Amazon tributaries.
International team discovers seven new species of giant pill-millipedes with largest chirping organs, found in rainforests and isolated forest fragments. Conservation efforts needed to protect these microendemic species due to impending mining projects.
Research reveals Amazonian forests are being altered by multiple environmental factors, creating greater perils for the world's largest rainforest. The study found that fragmented forests change rapidly, with trees dying and vines proliferating, while nearby undisturbed forests also experience changes.
A new analysis of NASA satellite data reveals a gradual decrease in Congo rainforest greenness, suggesting a slow adjustment to long-term drying trend. The study found that climate factors such as land surface temperatures and decreased cloudiness contribute to the observed browning of the forest canopy.
Max Planck researchers found that Carabayo shares similarities with extinct Yurí and Tikuna languages, suggesting a genetic link between the three. The study provides evidence of linguistic family ties in the region.
New research reveals that humans have actively managed Southeast Asian rainforests for over 11,000 years by clearing vegetation to plant food-bearing plants. Pollen samples and archaeological findings indicate repeated disturbances to vegetation since the end of the last ice age.
A new study has found that fungi regulate diversity in rainforests by making dominant species victims of their own success. Fungi spread quickly between closely-packed plants of the same species, enabling a wider range of species to flourish.
Researchers discovered that widespread deforestation leads to shifts in nitrogen-fixing microorganism communities, potentially reducing the Amazon's ability to lock up carbon dioxide. The findings suggest a complex relationship between land use change and microbial composition.
A team of scientists found that male katydids can synchronize their chirps in the presence of a masking trill, with the ability to detect low-frequency components. The researchers used tiny hook electrodes to study the neural activity of katydids and discovered that an auditory neuron was involved in detecting these frequency components.
A new study reveals that nearly 17,000 kilometres of road were built in the Brazilian Amazon every year between 2004 and 2007. This expansion had a significant ecological impact, with indirect effects including changes in air and soil temperature, moisture, and animal movement restrictions.
A new study suggests the southern portion of the Amazon rainforest is at a much higher risk of dieback due to stronger seasonal drying, which could lead to large volumes of carbon dioxide release and disrupt biodiversity. The researchers found that global warming is the most likely explanation for the lengthening dry season.
A study reveals why Puerto Rican lizards don't rapidly extend their dewlaps like Jamaican cousins, instead using alternative strategies to enhance detection of displays. The research shows the island's species lacks physiology for rapid movement, relying on tailoring speed and duration of displays to match forest conditions.
Scientists at the Smithsonian Tropical Research Institute reviewed 6,000 measurements of ancient temperatures to understand the past impact of global warming on rainforests. They found that diversity increased during hothouse conditions, but surprisingly, rainforests never extended beyond the modern tropical belt.
Research shows that conserving rainforests in the Amazon River Basin can increase electricity production from hydropower projects by up to 30%. The study highlights the critical role of rainforests in generating rainfall and river flow, which ultimately power production.
Researchers have discovered the original host of ancient pigmy moths was a rainforest plant in the myrtle family. The moths' evolution reveals unique adaptations for courtship and mating.
A study by University of Michigan researchers found that strictly protected areas and indigenous lands successfully limit deforestation in the Amazon. The research used remote-sensing data from 292 protected areas and found that these types of protection are more effective than sustainable-use areas.
A study by University of Exeter researchers reveals tropical forests' sensitivity to climate change, with significant carbon release expected if climate models are inaccurate. The team found a correlation between year-to-year variations in carbon dioxide concentration and long-term changes in tropical forest carbon storage.
Scientists at Potsdam Institute for Climate Impact Research propose a new method for measuring system stability, which could help predict tipping points in the Amazon rainforest and assess cancer risk. By analyzing data from diverse systems, researchers found that basin stability is a key factor in determining stability.
A recent study found that Amazon deforestation results in a significant loss of microbial diversity, leading to reduced ecosystem resilience. The research team discovered that the conversion of rainforest to agricultural pastures causes a homogenization of bacterial communities, resulting in a net loss of diversity.
A recent study found that deforestation in the Amazon rainforest leads to a net loss of diversity among microbial organisms, which are crucial for ecosystem function. The research revealed biotic homogenization and reduced genetic variation in bacteria across converted forests, compromising ecosystem resilience.
A new study estimates that a 6,000-hectare forest hosts around 25,000 arthropod species, with some species found in just one hectare. The research also found that the diversity of arthropods can be accurately predicted from plant diversity.
The Carnegie Airborne Observatory's AToMS system is uncovering a previously invisible ecological world by combining laser and spectral imaging instrumentation to derive simultaneous measurements of an ecosystem's chemistry, structure, biomass, and biodiversity. This technology has applications ranging from mitigating climate change to ...
A study by Thorsten Dittmar and colleagues reveals that the Atlantic Ocean is receiving a significant amount of stable carbon compounds from the Brazilian rainforest, which was heavily deforested in the 1970s. The compounds, originating from charcoal left in the soil, are affecting biogeochemical cycles for centuries and millennia.
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.
A new study reveals that even drought-resistant tree species in the Bornean rainforest will face increased mortality due to El Nino events. Replacing coal with natural gas could reduce global warming by 40% under certain scenarios, according to a separate analysis.
Researchers at Aarhus University have discovered that climate change over millions of years shapes the composition of species assemblages in the tropics. The study reveals distinct differences in palm species diversity between South America and Africa, with South America boasting higher biodiversity due to its relatively stable climate.
A yearlong science education program connects K-8 teachers from central Phoenix to those in Panama, empowering them to teach critical thinking skills, science knowledge, and cultural awareness. The project utilizes Vidyo technology to create a global classroom, fostering connections among middle school students.
A team of ecologists found that Central European meadows and long-grazed grasslands are the most species-rich areas on Earth, with some regions boasting over 942 plant species per hectare. The study's findings predict a total of 219,204 species globally, remarkably close to current estimates of 275,000 species.
A new species of tiny, black and orange grasshopper-like insect has been found in the Toledo District of southern Belize. The insect, Ripipteryx mopana, is only 5mm long and uses its large jumping hind legs to escape predators.
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.
Researchers have re-discovered a rare and endangered primate species in Borneo's Wehea Forest, highlighting the need for further scientific research and conservation strategies to protect the remaining rainforest. The rediscovery of Miller's grizzled langur was made possible through camera trap images taken by PhD student Brent Loken.
Researchers found that as spider size decreases, brain size increases proportionally, with even the smallest spiders able to weave webs and perform complex behaviors.
A study of over 60,000 individual fig flowers found that male pollinator fig wasps work together to chew escape tunnels for their females, increasing escape rates. In contrast, non-pollinating parasitic fig wasps, which are driven by aggression, fail to cooperate and have lower success rates.
A study by University of Leeds ecologists reveals that over 80% of ant species found in pristine forests were also present in logged areas. This finding has implications for forest conservation, suggesting that areas previously thought to have little value can still support diverse communities.
A rainforest vine has evolved a dish-shaped leaf with strong echoes to attract bat pollinators. The researchers found that the leaf reduces search times by 50% when presented above a feeder, indicating its effectiveness as an echo beacon.
Researchers at the University of Exeter have developed a system to anticipate high-risk climate tipping points, providing early warning systems for devastating consequences. By analyzing observational data, scientists can identify signs of instability in climate systems, allowing for forewarning and adaptation.
Researchers discovered that ants use chemical signals on their host tree to distinguish it from competing plant species. The team found that the ants more aggressively attacked papers coated with extracts from a closely related species, demonstrating the high degree of specificity for their host tree.
Cola detectives use protein testing to verify natural ingredients in premium soft drinks, detecting plant proteins in drinks claiming 'organic agave syrup and cola nut extracts'. Coca Cola products, without natural cola extract claims, have no detected protein, giving consumers a certificate of authenticity.
Scientists discovered that ancient rainforests had more veins per unit area in leaves of flowering plants, allowing for increased water availability and carbon capture. This finding suggests that improved plumbing systems in these plants contributed to the evolution of modern rainforest ecosystems.
Cocaine production in Colombia accelerates rainforest destruction, threatening biodiversity hotspots. Designated protected areas can help preserve ecosystems.
Researchers found two severe Amazon droughts in 5 years have caused widespread and severe impacts on the region's rainforests. The carbon impact of these droughts may exceed previous estimates, potentially offsetting the Amazon's ability to absorb CO2 from the atmosphere.
A unique orangutan rescue project in Bukit Tigapuluh is at risk due to selective logging concessions by Asia Pulp & Paper/Sinar Mas Group. The project has been deemed critical for tiger conservation, with over 30 tigers and 150 elephants calling the forest home.