Articles tagged with Rainforests
The Amazon Basin acts as a self-contained biogeochemical reactor during the rainy season, producing organic material that serves as cloud condensation nuclei. This process allows scientists to investigate natural cloud formation and precipitation without human influence.
Research team isolates aerosol particles in near-pristine pre-industrial conditions, shedding light on cloud formation and precipitation. Organic compounds from plants are found to be a primary source of submicron particles, which can affect climate.
Researchers isolated aerosol particles in near-pristine pre-industrial conditions, providing crucial clues about cloud formation and differences between natural and polluted environments. The finding could help understand global climate change and inform modeling of anthropogenic perturbations.
Researchers found that pristine rainforests in the Amazon produce aerosol particles that act as seeds for cloud formation and precipitation. These particles are formed from organic molecules emitted by trees and other biological matter, and play a crucial role in sustaining the hydrological cycle.
New research reveals that reforestation of damaged rainforests captures more carbon than softwood monoculture plantations. Restoration projects store significantly more carbon in above-ground biomass compared to monoculture and mixed-species plantations.
A recent research trip across the western Amazon revealed surprising results, with protected areas and indigenous reserves showing promising signs of effectiveness. The study also highlights the need for sustainable growth that balances economic development with environmental protection.
New climate simulations published in Proceedings of the Royal Society B demonstrate flowering plants' crucial role in regulating climate in ever-wet rainforests. Replacing these plants with non-flowering varieties leads to significant decreases in rainfall, underscoring their importance in maintaining tropical ecosystems.
Researchers at University of California - Berkeley have identified four distinct species of the secretive Hemidactylus fasciatus gecko in West African rain forests. The discovery was made using new DNA analysis techniques that distinguish different species even when they appear similar.
A new study by Georgia State University professor Paul J. Ferraro found that saving rainforests and protecting national parks reduced poverty in Costa Rica and Thailand in the long term. The research suggests conservation efforts may provide economic opportunities through tourism and infrastructure development.
Researchers from the University of Central Florida used LiDAR technology to map the ancient Maya city of Caracol, detecting over 11,000 new structures and confirming its size. The technology revealed extensive agricultural terracing, showing the Maya were adept at 'building green' long before modern terminology.
Skull fragments of prehistoric koalas from the Riversleigh rainforests suggest they had a 'lazy' lifestyle and produced loud calls like modern koalas. However, they did not share the specialized eucalyptus leaf diet.
Researchers found that tropical forest fragments store significantly less biomass and carbon dioxide than continuous natural forests. The study used a simulation model to analyze the impact of habitat fragmentation on the Atlantic Forest in Brazil.
A team of researchers proposes a novel approach to protect the Amazon rainforest by leaving oil reserves untouched and selling carbon credits. This initiative could fund rainforest protection and combat climate change, but skeptics raise questions about funding and environmental integrity.
Research at the University of Leeds found that logged rainforests can recover biodiversity to pre-logging levels within 15 years through managed restoration. This approach can also support carbon offsetting, providing a stronger incentive for protecting vulnerable forests.
Researchers have discovered a rich cache of plant fossils in Colombia, providing the first reliable evidence of how Neotropical rainforests looked 58 million years ago. The fossil record shows that many dominant plant families still exist today, indicating a relatively stable ecosystem.
The discovery of Titanoboa, the largest snake to have ever existed, reveals that Neotropical rainforests flourished during warm periods, with temperatures up to 3-5°C warmer than today. The fossil rainforest's plant diversity was lower than expected, suggesting it may have been recovering from mass extinctions.
The article highlights various fossil discoveries, including fungal microfossils, single-celled sea-bottom-dwellers, and trilobite soft tissues. These findings were recovered using diverse methods and provide insights into ancient environmental changes.
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.
The study reveals that African Pygmies and their farmer neighbors diverged approximately 60,000 years ago. Genetic analysis indicates a common origin for all Pygmy populations, with distinct physical traits possibly inherited from a shared ancestor.
A new study by Duke University researchers found that rainforest reserves provide an effective buffer against fires in the Brazilian Amazon. Despite the presence of roads and settlements, reserves still experience fewer fires than surrounding areas. The study suggests that even inhabited reserves can be effective tools for reducing fires.
Researchers discovered the remains of Titanoboa cerrejonensis, a massive boa-like snake that lived in northern South America during the Paleocene epoch. The estimated size of the snake was 42 feet in length and weighed over a ton, challenging our understanding of past climates and environments.
Scientists estimate that roughly 1.4% of tropical humid forests were deforested between 2000 and 2005, with more than half containing 50% or less tree cover. New remote-sensing technologies are required to monitor the changes caused by selective logging and forest regeneration.
A new approach, High-fidelity Imaging Spectroscopy (HiFIS), can determine the chemical and structural properties of rain forests in unprecedented detail over broad swaths. The technology has received a $5.2-million grant to advance its development, enabling detailed chemical mapping of species.
A team of Princeton researchers found that molybdenum is crucial for controlling the biological conversion of nitrogen in tropical rainforests, supporting plant growth. The discovery has implications for global climate change policy, as it may limit the amount of carbon dioxide that tropical rainforests can absorb.
A recent study found that biofuel plantations in tropical forests release more carbon into the atmosphere than they save, harming both climate change and biodiversity. The study suggests that preserving existing forests is a better way to combat climate change.
A unique fungus, Gliocladium roseum, has been discovered to produce diesel compounds from cellulose, offering a promising alternative to traditional biofuels. The fungus can make myco-diesel directly from cellulose, skipping a step in the production process.
Global warming may threaten tropical plant and animal species living in mountainous regions, forcing them to move uphill in search of suitable climates. This could lead to the extinction of half of the studied species in Costa Rican lowlands unless they develop tolerances for higher temperatures.
The western Amazon, home to the most biodiverse rainforest left on Earth, is at risk from oil and gas projects. Over 180 blocks cover nearly 688,000 km2, overlapping with protected areas and indigenous territories. The study highlights the need for regional Strategic Environmental Assessments and indigenous rights protection.
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 EcoNet wireless sensor network allows for continuous and inconspicuous monitoring of environmental factors such as temperature and luminosity in remote locations. This enables researchers to uncover anomalies early on and investigate them promptly, providing valuable insights into global environmental changes.
The Carnegie Institution's Department of Global Ecology is developing a database of plant chemical and remote sensing signatures for tropical forest species with a $1.8 million MacArthur grant. This 'Spectranomics Project' will enable large-scale inventory and tracking of rainforest vegetation globally, enhancing satellite observations.
Climate scientists warn that reducing sulphur dioxide emissions from coal burning could lead to increased sea surface temperatures in the tropical north Atlantic, causing droughts in the Amazon rainforest. The study estimates a heightened risk of drought every other year by 2025 and nine out of ten years by 2060.
Researchers in Costa Rica have successfully restored a tropical rainforest ecosystem by planting mixed-species tree plantations on worn-out pasture land. The project, led by Carl Leopold, has shown promising results, with native species and fungi helping to control erosion and support growth.
Invasive tree species are changing the basic ecological structure of Hawaiian rainforests, making them less hospitable to native plant and animal species. The impact is evident in denser canopies, altered soil fertility, and suppressed understory plants.
Protected forest strips need to be at least 400m wide to conserve bird and mammal species in the Amazon rainforest. The current width of 60m is deemed insufficient, according to a new study by University of East Anglia researchers.
Researchers found that a tropical rainforest bird uses different song features to signal species identity and individual information, tailored to the environment's acoustic properties. The study suggests efficient local communication networks are established in the habitat.
Researchers at Case Western Reserve University discovered a natural product derived from the Amazon rainforest that prevents tissue destruction by blocking matrix metalloproteinases. The findings have potential therapeutic applications in various joint, skin, and gastrointestinal diseases.
A regional study of Peru's Amazon found that land-use policies have kept large-scale rain forest damage in check, but recent disturbances increased near roads, with forests protected by the government being more secure than those without conservation designations.
New research findings suggest tropical insects can be consistently found across hundreds of miles, eating a broader menu of foliage. This challenges the notion that plant-eating insects are picky eaters that stay close to home.
A study of lowland rainforests in New Guinea found low beta diversity across the study area, indicating widespread distribution of insect species and limited specialization. The results have implications for biological conservation and may suggest that bigger is better when preserving these forests.
The discovery of a 300-million-year-old rainforest fossil has transformed our understanding of the ecology of the Earth's first rainforests. The fossilized forest, covering over 10,000 hectares, provides a unique snapshot of tropical rainforests 300 million years ago.
Scientists have discovered a new species of clouded leopard found only in Borneo and Sumatra, characterized by distinct physical features. The genetic analysis revealed significant differences between the two species, with around 40 nucleotide variations, suggesting divergence around 1.4 million years ago.
Archaeologists have uncovered stone 'hammers' dating back 4,300 years in the Taï rainforest, used by chimpanzees to crack nuts. The discovery confirms that some of humanity's behavioral hallmarks were inherited from a common ancestor with great apes.
A recent study reveals that the Brazilian rainforest heavily depends on dust from a specific valley in Africa. The Bodélé valley in northern Chad provides a significant portion of the vital minerals needed for the Amazon forest's existence, with 56% of the dust reaching the region originating from this source.
A British drug discovery company is teaming up with a Brazilian firm to search for new medicines in the Amazonian and Atlantic rain forests. The partnership aims to combat diseases such as tuberculosis, avian flu, and tropical illnesses like hepatitis C and Chagas disease.
A clinical trial is underway to assess the effectiveness of Reparagen in treating moderate osteoarthritis, with findings that it 'silences' genes promoting joint damage while activating the repair gene IGF-1.
A new study found that ancient birds of prey like African crowned eagles likely feasted on some of our earliest human ancestors. The researchers analyzed over 600 bones from monkey skulls, which showed puncture marks and scratches consistent with the grip of an eagle's talons.
Researchers studied gorilla population during Ebola outbreak and found transmission between groups led to high mortality rate. The study suggests ape-to-ape transmission plays a significant role in the spread of the virus.
The University of Warwick is launching a butterfly farming project in Guyana to preserve the local rainforest. The project aims to enhance the livelihoods of indigenous communities by developing a low-tech butterfly farming industry, which will also conserve the rainforest habitat.
Researchers investigate how changes in tropical vegetation affect carbon emissions and global climate change. They will make measurements in Africa, Australia, and South America to understand the conditions under which rainforests and savannas thrive.
The Amazon rainforest grows in greenery and lush vegetation during the dry season, contrary to the general pattern of plant growth. This phenomenon is observed only in undisturbed forest areas, where trees' deep roots allow them to reach water even during dry periods.
A new theory explains tropical rain forests' rich biodiversity and community assembly patterns. The theory proposes that abundant species regulate themselves to make room for others, regulating dynamics and permitting coexistence.
The Tropical Dry Forest Research Network (TROPI-DRY) aims to translate research into policies to save these ecosystems. With over $175 million in environmental services fees paid by Costa Rica since the late 1990s, private conservation offers a promising solution.
A recent University of Alberta study found that rainforest conservation can be economically viable, with increased entrance fees preserving up to 90% of forest bird species. The research suggests that the benefits of conservation should be distributed to local communities.
Researchers found that reestablished contact between two isolated green-eyed tree frog populations led to the emergence of a new species due to females' preference for mates from their own lineage. This preference resulted in reproductive isolation and accelerated evolution, ultimately giving rise to a distinct species.
Researchers observed western gorillas using sticks to test water depth and create a bridge in the wild. This discovery provides valuable insights into the evolution of tool usage in great apes and their abilities.
In the Amazon rainforest, ants, not evil spirits, cultivate devil's gardens by poisoning all plants except their hosts with formic acid. This process allows colonies to gain abundant nest sites, a long-lasting benefit that can last for 800 years.
The study suggests that roots were a primary food source for early humans on the savannah, leading to adaptations in their dental structure. This finding may have contributed to the initial split between humans and other apes, with the ability to eat roots providing a vital survival advantage.
A study by Elizabeth Miller and Barbara Kahn found that consumers prefer atypical and unspecific names to common descriptives. The results suggest that color names can impact purchase propensity, with more ambiguous names leading to increased consumer appeal.
Fungus-farming termites cultivated fungi as a food source inside their nests, with the relationship representing an impressive example of mutualistic symbiosis. Researchers suggest that termite agriculture originated in the African rainforest and gave rise to various fungus-cultivating termite species.