New species of spiny mouse discovered in rainforest
A new species of spiny mouse, Neacomys marci, has been identified in northwestern Ecuador. The discovery sheds light on the previously underestimated diversity of the Spiny Mouse genus.
Rainforests
Articles tagged with Rainforests
Climate change-induced drought may transform parts of the Amazon’s rainforests into savannas
A Rutgers-led study reveals that Amazonian lowland rainforest areas critical for absorbing carbon dioxide and buffering climate change may morph over time into dry, grassy savannas. The findings highlight the impact of double-stress conditions, where alternating flooding and drought limit forest establishment and favor short-lived gras...
Spurge purge: Plant fossils reveal ancient South America-to-Asia ‘escape route’
Researchers have discovered fossils of a group of spurges in Argentina that date back 52 million years, suggesting these plants migrated from South America to Asia and beyond. The findings provide the first direct fossil evidence of spurges in Gondwanan South America, contradicting previous assumptions about their Asian origins.
Expedition uncovers four new tarantula species in Colombia’s biodiversity hotspot
A groundbreaking expedition in Colombia's Chocó Biogeographic Region has revealed four new tarantula species, including the exceptional trapdoor spider Ummidia solana. The discovery expands their geographical distribution and offers valuable insights into their morphological characteristics, taxonomy, and biogeography.
Study revealed rainforest releases oxidized organic molecules that form aerosol particles in tropical free troposphere
A study by the University of Helsinki found that oxidized organic molecules from Amazon rainforests contribute to the formation of aerosol particles in the tropical free troposphere. These molecules, primarily composed of isoprene, can nucleate or condense on nanoparticles, impacting cloud formation and global climate.
Tropical flying squirrels deploy carpentry trick to safely store nuts
Flying squirrels in China's southern rainforests use a unique storage method, chewing grooves into nuts and wedging them between branches, to keep them safe from decomposition. This behavior demonstrates their cognitive and engineering skills, potentially contributing to the dispersal of nut-producing trees throughout the forest.
Emerging deforestation frontier in southwestern Amazon sees increase in burnings
A recent study found that the Amazon Rainforest in southwestern Brazil has experienced a significant increase in deforestation and burning, with 4,141 km² of forest destroyed between 2003 and 2019. The region's agricultural activities and infrastructure have contributed to this trend, posing a threat to conservation units and Indigenou...
Genomic analysis shows the Amazon’s Ashaninka people are made up of two subgroups with distinct histories
A recent genomic study identifies two genetically distinct Ashaninka subgroups, suggesting a complex history of interactions with neighboring populations. The research also hints at a possible migration from southeastern South America or the Southern Cone, shedding new light on the genetic origins of this Indigenous group.
Plant roots fuel tropical soil animal communities
A study reveals that plant roots are crucial for belowground life in the tropics, supporting decomposition and soil health. Removing living roots decreases animal abundance by 42% in rainforest plots and 30% in plantations.
Amazon mammals threatened by climate change
A study by the University of California, Davis, finds that most Amazon land mammals are threatened by climate change and projected savannization. Camera trap surveys revealed that only a few species preferred savanna habitat, while most species, including those using both habitats, chose forest habitats.
A fossil fruit from California shows ancestors of coffee and potatoes survived cataclysm that killed the dinosaurs
A fossil plant from California has shed light on the evolution of flowering plants, pushing back their origins by 80 million years. The discovery indicates that structurally complex rainforests may have existed as early as the Cretaceous period.
DiCaprio and Sheth name new species of tree-dwelling snakes, threatened by mining
Five new tree-dwelling snake species were discovered in the jungles of Ecuador, Colombia, and Panama. The research highlights the devastating impact of open-pit mining operations on these unique creatures.
Early humans: Annual cycles in tooth enamel provide insights into life histories
Researchers analyzed ancient teeth from Homo erectus and great apes to reveal annual cycles in tooth enamel, providing insights into their diets and seasonal food supplies. The study shows that humans and great apes had distinct dietary patterns, with humans exhibiting less pronounced peaks and lower Sr/Ca values.
Restoring biodiversity in deforested ranches “one tree at a time"
Scientists have found that carefully planned patches of diverse vegetation can increase biodiversity and boost yields for farmers. By engaging local communities and co-designing restoration strategies with them, researchers demonstrate the potential to minimize fragmentation and enhance connectivity in Amazon landscapes.
New, portable device detects glow emitted by plants to measure their health
A new portable device can detect the low-intensity light emission from healthy plants, allowing researchers to measure their health and sustainability. This technology can help assess the impact of CO2 emissions, greenhouse gases, and extreme weather events on plant stress and inform strategies for sustainable agriculture.
Fire in the Amazon is associated more with agricultural burning and deforestation than with drought
A recent study analyzing Amazon Rainforest fires from 2003-2020 reveals that most fires are caused by uncontrolled human use of fire for agriculture and deforestation. The study found that Brazil accounted for an average of 73% of detected fires, with pasturelands and natural grasslands being the main burned areas.
Study estimates how much deforestation could increase if restrictions on mining in the Amazon are lifted
Researchers estimate that opening protected areas to mining would lead to the destruction of 183 km² of forest and further loss of 7,626 km² due to infrastructure construction. The study highlights the need for strategic planning and environmental impact assessments before making changes to conservation policies.
Tropical insects are extremely sensitive to changing climates
A recent study in Peru revealed a 50% decline in arthropod biomass following short periods of drought and increased precipitation. Tropical insects are sensitive to both extreme weather events, with rainfall patterns being a key factor in their decline.
Study quantifies impact of human activity on Atlantic Rainforest’s carbon storage capacity
The study quantifies the impact of human activity on the Atlantic Rainforest's carbon storage capacity, highlighting that forest degradation leads to significant losses and increased greenhouse gas emissions. Conservation efforts are crucial to reverse these effects and protect the biome's carbon stocks.
Brazil has two populations of American bullfrogs, an exotic species that transmits a deadly fungus
Researchers found two distinct populations of the invasive American bullfrog in Brazil, one descended from 1935 introductions and another from the 1970s. The study highlights the need for law enforcement to prevent escape from frog farms.
Tropical soils highly sensitive to global warming, warn researchers
Researchers found tropical soil microbes decline in diversity and increase CO2 emissions with simulated global warming. The findings threaten rainforest ecosystems and carbon storage, emphasizing the urgency for conservation.
Mirror image molecules reveal drought stress in forests
Researchers from the Max Planck Institute discovered that mirror-image molecules respond differently to drought stress and can be predicted more accurately via their emissions. This finding has significant implications for understanding forest ecosystem responses to climate change.
Eight new species of tiny geckos tumbling out of Madagascar’s rainforests
Researchers have identified eight new species of tiny brown geckos in Madagascar's rainforests, expanding our understanding of their distribution and evolution. The discovery highlights the importance of continued sampling across the region to uncover new species.
Cameras candidly capture bushmeat mammals to avert crisis
A team of researchers from Kyoto University and Cameroon used camera trap surveys to predict the total biomass of large rodents and duikers in southeast Cameroon. They developed six candidate indicators, including the ratio of red duikers to blue duikers, which showed positive linear correlations with total bushmeat biomass.
Amazon's growth limited by lack of phosphorus
New research shows that the Amazon rainforest's growth rate is limited by a lack of phosphorus in the soil, which could reduce its ability to store carbon and increase vulnerability to climate change. Phosphorus availability played a critical role in increasing productivity in a recent experiment.
Less rain in the rainforest: Amazon even more vulnerable than previously thought
A new study reveals that droughts in the Amazon rainforest can lead to a ripple effect, causing widespread damage and biodiversity loss. The research team used network analysis to understand the complex workings of the forest's moisture recycling system.
'Sensing system' spots struggling ecosystems
A new resilience sensing system can identify areas in danger of collapse and measure the success of conservation efforts. Global average resilience has declined over the last 20 years, with regions such as the Amazon rainforest showing signs of loss of resilience.
Hidden in plain sight: Seven showy tropical forest ferns described as new to science
Researchers from the University of Turku have described seven new species of tropical ferns, including six from the genus Danaea and one from Dennstaedtia. The newly discovered species range from 20cm to 2m tall and offer insights into the biodiversity of Amazonian rainforests.
Underground carnivore: the first species of pitcher plant to dine on subterranean prey
Scientists have discovered a new species of pitcher plant that operates underground, catching prey in the soil. The Nepenthes pudica species has modified leaves known as pitfall traps, which are formed in cavities or directly in the soil.
Amazon River freshwater fish show signs of overexploitation
The Amazon River's biodiversity is under strong fishing pressure, indicating a stress that menaces the region's ability to provide protein and other essential nutrients. The research found that large-bodied species are more vulnerable to overexploitation and being replaced by smaller species.
Amazon deforestation threatens newly discovered fish species in Brazil
Two new species of Amazonian fish have been discovered and described by Smithsonian researcher Murilo Pastana, one with vibrant red-orange fins and another that is technically a miniature fish. The species are at risk of extinction due to deforestation in the region where they inhabit.
Animals essential to seed dispersal are the first to disappear owing to deforestation
A study found that large mammals and birds essential for seed dispersal in the Atlantic Rainforest are disappearing due to deforestation. In contrast, smaller animals have lower interaction levels with plants.
Deforestation of Indigenous lands could prevent Brazil from achieving climate change mitigation targets
Deforestation in Indigenous lands, particularly in Apyterewa Territory, poses a significant threat to Brazil's ability to meet its international climate change mitigation targets. The Brazilian government must take effective action to enforce environmental laws and protect the Amazon region.
Amazon Rainforest Foliage Gases Affect the Earth’s Atmosphere
A recent study by Pacific Northwest National Laboratory researchers reveals a previously unknown atmospheric phenomenon over the Amazon rainforest, driven by plant-foliage-derived gases. These gases condense to form fine particles that cool the planet and seed clouds, affecting precipitation and the water cycle.
How deforestation is triggering an irreversible transition in amazon forests?
A new study finds that Amazon deforestation causes a substantial reduction in evapotranspiration, leading to drier lower atmosphere and severe atmospheric desiccation. The study suggests an emerging transition in the Amazon hydrological cycle, but also highlights the potential for forest conservation to prevent ecosystem collapse.
Protected tropical forest sees major bird declines over 40 years
A University of Illinois-led study reveals a significant decline in tropical forest bird populations, with 70% of understory bird species experiencing a drop of half or more since 1977. The findings highlight the importance of long-term studies and the need to address the lack of data on tropical bird populations.
Monkeys play to reduce group tension - study
Research found that adult howler monkey play increases when faced with competition over fruit, a valuable resource. This playful behavior helps regulate relationships within the social group and avoid conflict, unlike collective grooming used by some other primates.
A new “truth” about the rainforest: How Bolsonaro’s supporters misuse satellite data
A new study reveals how Bolsonaro's supporters are misusing satellite data to promote economic development at the expense of environmental protection. The researchers found that far-right groups are creating alternative 'truths' about deforestation, questioning the validity of scientific findings and sowing confusion among the public.
The Amazon rainforest seems to be approaching a tipping point
The Amazon rainforest is losing resilience and approaching a critical transition, with more pronounced losses in drier areas near human land use. This could lead to an abrupt transition to a much drier habitat with profound implications for biodiversity and climate change.
Amazon rainforest losing resilience
The Amazon rainforest is experiencing a decline in resilience, which could trigger dieback and have severe consequences for the environment. The study found that resilience has dropped consistently since the early 2000s, with parts of the forest losing resilience faster due to deforestation and climate change.
Amazon rainforest is losing resilience: New evidence from satellite data analysis
Research from satellite data analysis suggests that three-quarters of the Amazon forest has lost its ability to recover from perturbations since the early 2000s. This loss of resilience increases the risk of dieback and contributes to global warming, highlighting the urgent need for limiting logging and greenhouse gas emissions.
Еndangered, new to science orchid discovered in Ecuador with the help of a commercial nursery
A new orchid species, Maxillaria anacatalina-portillae, has been discovered in Ecuador's cloud rainforest. The plant is considered critically endangered due to its limited population and threats from climate change and human activity.
Frog with tapir-like nose found in Amazon rainforest, thanks to its 'beeping' call
Researchers discover new species of burrowing frog, Synapturanus danta, in Amazon peatlands. The frogs' unique calls and adaptations make them an important part of their underground ecosystem, contributing to nutrient cycling and soil structure.
Tall trees in the Amazon can suffer from warmer temperatures
A new study found that Amazonian forests are impacted by high maximum temperatures, causing tall trees to shed their leaves and branches. The study, led by the University of Helsinki, used LiDAR to track the effects of fragmentation and climate change on plant phenology.
Study explores how temperate rainforests can aid the fight against climate change
A new study reveals that temperate rainforests can play a crucial role in combating climate change by sequestering carbon and mitigating flooding. However, the research also shows that natural expansion of these ecosystems is unlikely to meet UK targets due to fragmentation and degradation.
Peruvian gold rush turns pristine rainforests into heavily polluted mercury sinks
Scientists have recorded high levels of atmospheric mercury pollution in a pristine patch of the Peruvian Amazon due to illegal gold mining. Mature Amazonian forests near gold mining are capturing huge volumes of atmospheric mercury, more than any other ecosystem previously studied.
New species of ‘incredibly rare’ insect discovered
A new species of leafhopper, Phlogis kibalensis, has been discovered in the Kibale National Park in western Uganda. The insect belongs to a rare genus that was last recorded in Central African Republic in 1969.
Tapirs and large peccaries are key to ecological balance in Neotropical forests, study shows
A study by Brazilian researchers found that these large mammals help regulate plant diversity, productivity, and biomass in understory areas. The spatial structure of plant communities is also influenced, with the Jussara palm playing a key role in attracting animals and dispersing seeds.
New species of rainfrog discovered in Panama and named in honor of global environmental activist Greta Thunberg
A new species of rainfrog, Pristimantis gretathunbergae, has been discovered in Panama and named after global environmental activist Greta Thunberg. The frog's habitat is threatened by climate change and deforestation, highlighting the importance of conservation efforts.
Using strategy to preserve biodiversity while saving space
A team of scientists has redefined indicators for biological diversity, analyzing ecosystem and species distribution. They found that areas with many species don't always have high biodiversity, and some protected areas may not be effectively conserving species and ecosystems.
Indigenous communities hold a huge and unique source of ecological knowledge
Researchers found that indigenous people in Gabon possess an astonishing 732 plant and fruit-eating animal interactions, exceeding academic literature. Local knowledge is invaluable for understanding ecological processes, particularly in remote areas.
New phenomenon: Forest mammals eavesdrop on messy monkeys
Researchers discovered that forest mammals eavesdrop on monkey meals to access fruit dropped by messy eaters. This eavesdropping strategy is crucial for these animals' survival, particularly during periods when almond trees produce abundant food.
Male spiders are attracted by a female like planets orbiting a star
Researchers find that male golden orb-weaving spiders use animal magnetism and physical forces to approach females without being detected. By sensing vibrations on the web, males can balance risk and reward to survive, demonstrating complex decision-making capabilities.
Amazon Rainforest birds’ bodies transform due to climate change
Amazon Rainforest birds have reduced body mass by an average of 2% every decade since the 1980s, with most species losing about 27.6 grams on average. The birds' bodies and wings have also changed to become more energy-efficient in flight, with longer wings and lighter bodies adapted to hotter and drier conditions.
Timing is everything: Stanford researchers reveal why the right sequence of policies is essential to slow deforestation
A new study by Stanford researchers provides a blueprint for public and private interventions to slow deforestation. The study reveals that the right sequence of policies, including disincentives, incentives, and enabling measures, can deliver conservation goals at lower cost across entire at-risk regions.
Scientists discover how forest fires influence rain cloud formation in the Amazon
A Brazilian study reveals that forest fires and wildfires modify the freezing process of cloud droplets, altering natural cloud functioning and potentially impacting precipitation. The research used a large dataset to show that aerosols emitted by fires can affect cloud formation in southern Amazonia during the rainy season.
Aquatic fungus has already wiped amphibians off the map and now threatens survival of terrestrial frogs
A study in the Atlantic Rainforest detected high mortality rates among tiny frogs known as pumpkin toadlets infected with the chytrid fungus. The infection causes a physiological imbalance leading to death from a heart attack. Climate change and drought may exacerbate the threat to terrestrial amphibians.
Early modern human from Southeast Asia adapted to a rainforest environment
The study found that early Homo sapiens had an omnivorous diet in the tropical rainforest of Southeast Asia, consuming both plants and animals. The zinc isotope analysis revealed a mix of specialized adaptations to this environment, differing from previous assumptions about human diet.
“Mystery plant” from the Amazon declared a new species after nearly 50 years of flummoxing scientists
A new plant species, Aenigmanu alvareziae, has been identified after nearly 50 years of scientists unable to classify it. The plant's DNA analysis revealed its closest relatives were in the Picramniaceae family.
How geology and climate shape biodiversity
Tropical rainforests have uneven biodiversity due to geological history and climate. Researchers used a new model to simulate species diversification, finding that historical dynamics of mountain building and climate change drove biodiversity distribution rather than current climate factors.