A recent study found that humans are responsible for more than 25% of vertebrate deaths globally. The research analyzed 42,755 animal deaths and found that 28% were directly caused by humans. Larger animals and adults are more likely to be killed by humans.
Researchers found that despite reports of big trees being more vulnerable to drought, small trees in open areas lost leaves, while shaded trees surprisingly added leaf area. This response is dependent on environmental conditions imposed by the rainforest's structure.
At least 200 large animal species are declining in population and over 150 are under threat of extinction due to humans' meat consumption habits. Megafauna populations are experiencing a 70% decline, with 59% facing extinction.
A new joint research project is studying changes in landscapes and soil conditions of South Africa to assess land degradation. The 'South African Land Degradation Monitor' will use Earth observation data to monitor developments over time.
Researchers used drones equipped with thermal cameras to detect European nightjar nests in a pilot study. The method proved effective, allowing for accurate location of nests without disturbing the birds. This technology could have wider applications for detecting warm-blooded species.
A team of scientists conducted over 2,000 surveys of chirping frog calls to define the Atlantic Coast leopard frog's range and characteristics. The study resulted in the first field-verified range map for the species, living primarily in coastal plains from Connecticut to northern North Carolina.
A study by an international research group found that diverse and old forests are best able to perform multiple ecosystem services, including regulating climate and storing carbon. Foresters should focus on specific forest attributes to promote desired services, as no single 'perfect forest' exists.
Producing bio jet fuels from forestry residues in Norway can help reduce climate impacts, but it may affect other SDGs like Zero Hunger and Clean Water. The country could potentially produce 20% of its projected jet fuel use from forest residues by 2030.
Forests in the Pacific Northwest are less vulnerable to drought and fire due to climate conditions. Modeling suggests water-limited forests in the Rockies will be most affected by future drought-related mortality.
Researchers found that farmers have adapted to climate change by adjusting planting practices and using longer maturing varieties. This shift has increased maize yield trends by 28% since 1981, but it remains unclear if these benefits will be maintained in a hotter environment.
Research by Oregon State University scientists shows that large terrestrial carnivores can lead to improved stream structure and function in Yellowstone National Park. The return of wolves and cougars has resulted in increased willow height, canopy cover, and stream-bank stabilization, indicating a recovering riparian/aquatic ecosystem.
Scientists uncover evidence for multiple, older earthquake events in the geologic record, challenging the idea of a sustained tempo of faulting. The study reveals four distinct packages of sediment corresponding to previously identified earthquakes, with no evidence of additional seismic activity in the past 4,300 years.
Gene editing technology poses risks and benefits for ecosystems, human health, and community values. A proposed international oversight panel aims to address these concerns through inclusive deliberations and standardized reports.
A new study suggests that reducing US coal emissions through biomass and carbon capture can create 22,000 new jobs in the forestry and transportation sectors. This approach would retain 40,000 existing coal industry jobs while mitigating global warming below 2°C.
A Yale-led study finds that fragmentation weakens impact of fungal pathogens and insect herbivores, enabling some tree species to thrive near edges. Researchers tested the effect of natural enemies on seedling diversity in fragmented forests, finding that suppression of these enemies led to biodiversity decline.
A new paper urges creation of a coordinating global body to assure neutral evaluation of gene editing's benefits and risks. The technologies have breathtaking promise but also profound concerns about unintended consequences, requiring careful review and inclusion of local communities.
Researchers from OSU and international partners have established a roadmap for understanding the role of managed conifer forests in pollinator conservation. The agenda focuses on three themes: establishing baseline patterns, assessing forest management impacts, and quantifying effects of natural disturbances.
Researchers found that Douglas-fir density was high after 20 years in severely burned areas, unaffected by management practices. Forest managers should tailor post-fire management to specific objectives and landscape context to maximize effectiveness.
A research collaboration found that Haiti has lost over 99% of its primary forests, triggering an ongoing mass extinction of reptiles, amphibians, and other species. The country is expected to lose all remaining primary forest cover in less than two decades, resulting in the disappearance of most endemic species.
Deforestation in Haiti has led to the loss of primary forest cover on 42 of its 50 largest mountains. This has resulted in mass extinctions among reptiles, amphibians, and other vertebrates. The study's findings suggest that over the next two decades, all of Haiti's remaining primary forest will be lost.
A research team has identified the genetic mechanism responsible for black cottonwood poplars' susceptibility to Septoria, a deadly disease. The study could lead to more successful hybrid poplar varieties for biofuels and forestry production.
Infants who were breastfed for at least six months had a smaller number of resistant bacteria in their gut than babies who were breastfed for a shorter period. Antibiotic treatment of mothers during delivery increased the amount of antibiotic-resistant bacteria in the infant gut.
A new study by Yale researchers found that brand cache plays a significant role in extending smartphone lifespans, with iPhones lasting up to 67 months compared to Samsung phones' 54.5 months. The study analyzed over 500,000 secondhand phone listings on eBay and found that Apple's brand reputation contributes to its longer lifespan.
A genetic map of garden asparagus has been created, allowing researchers to identify the chromosome that determines the plant's sex. The map is a significant breakthrough in understanding this dioecious species and will enable the development of new varieties with improved characteristics.
University of Montana researchers discovered that ecosystems' carbon balance depends on water availability and annual precipitation thresholds. The study suggests climate models need improvement to accurately predict terrestrial carbon dynamics.
A species of seed-feeding fly is critically damaging orchid seeds, threatening their reproduction. The fly reduces seed production by over 95% in five species, putting already-endangered orchids at risk.
A new tool developed by UBC researchers helps conservationists make data-driven decisions about which species to recover with limited funds. By analyzing empirical data and expert knowledge, the Priority Threat Management tool prioritizes conservation strategies for endangered species.
A team led by UTIA faculty members will study the epidemiology of Batrachochytrium salamandrivorans, a fungus causing salamander population declines in Europe. The research aims to find ways to combat the fungus and has significant implications for US wildlife health.
Researchers at the University of Georgia have discovered that raising tortoises in captivity and releasing them into a protected habitat can significantly boost wild populations. The study found that 70% of head-started tortoises were still alive after one year, with strong site fidelity allowing them to reproduce.
Will Pearse, a USU biologist, has been awarded a $300,000 NSF grant to study the impact of invasive species like cheatgrass. His project aims to use evolutionary history to model practical ecological challenges and engage students in real-world research.
UBC researchers have discovered an internal messaging system in plants that regulates cell growth and division, enabling them to survive harsh conditions and compete successfully under favorable conditions. The system is driven by a protein called CLASP, which plays a crucial role in cell growth and division.
A new Yale study examines the role of 'natural enemies' in promoting tropical species diversity. However, findings suggest that disparities in enemy susceptibility can make communities less stable. The research contradicts a long-held hypothesis, highlighting the need for alternative explanations.
A long-term study found that drought helped ecological underdogs by stressing dominant species, while carnivores suffered when their prey became scarce. The Carrizo Plain National Monument revealed patterns relevant for climate change, with implications for conservation efforts.
A new study found widespread logging permit fraud in the Brazilian Amazon, which is undercutting conservation efforts and threatening high-value timber species like ipe. The researchers discovered a deliberate overestimation bias of these species, indicating corruption or simple misidentification.
Researchers at Oregon State University found that removing timber harvest residue during logging can increase the abundance and diversity of wild bees. The study suggests that managing forests to promote soil-nesting bee habitats could be an effective strategy for conserving these important pollinators.
A new carbon accounting system has been adopted by the EU to measure forest management's impact on greenhouse gas emissions. This approach reflects actual historical practices rather than projected future outcomes, providing a more credible solution to account for forest sinks and reducing GHG emissions.
Research by Hokkaido University found that abandoned farmlands, particularly those without surrounding forests, benefit wetland and grassland birds. The study also revealed that landscape structure affects bird communities differently.
Research finds 73% of tree species have shifted westward, largely associated with changes in moisture availability. Climate change impacts are more near-term and related to moisture availability than temperature changes.
Treevia's SmartForest system uses wearable devices and electronic sensors to monitor tree growth, quality, and health in real-time. This allows for more efficient and data-driven forest management decisions.
A University of Montana ecology professor and researchers have tracked shifting North American habitats to identify climate corridors. The study found routes along north-south trending passes and mountain ranges, which are often circuitous and poorly captured by existing conservation strategies.
A new study led by San Francisco State University found that California's cap-and-trade program has not effectively improved air quality for the state's residents. The bulk of GHG reductions occurred outside of California, while in-state emissions increased by 52% between 2013 and 2015.
A large-scale study examines giant panda habitat use trends and changing threats to their survival, providing scientific evidence of conservation success. However, emerging new threats such as livestock and human disturbance are offsetting gains, highlighting the need for continued protections and adaptive management.
A new study found that Finnish forest management guidelines do not adequately protect old growth forests where flying squirrels live. The guidelines were compared to the recently amended Forest Act and resulted in an extremely low occurrence of female flying squirrels, highlighting a large gap between science and policy.
A study of nearly 50,000 New Zealand children found that greener neighborhoods are less likely to develop asthma, while low plant diversity is associated with a higher risk. Biodiversity conservation may provide concrete health benefits beyond its ecological significance.
Biosecurity measures have been shown to effectively curb invasive plant pathogen introductions, even as trade and travel increase. The study found that targeted biosecurity interventions can reduce the establishment of non-native pathogens in agricultural sectors, slowing their spread.
Researchers mapped coyote range expansion from ancient fossils to modern museum specimens, correcting misconceptions of their original range. Their findings indicate coyotes had a broader geographic distribution than previously thought, with significant expansions into taiga forests, deciduous forests, and tropical rainforests.
Researchers have discovered that beef peptides can block bitter taste receptors on the tongue, potentially leading to improved flavors in food and medicine. The most effective peptides were produced through enzymatic hydrolysis using trypsin and pepsin enzymes.
Researchers challenge trophy hunting's effectiveness in wildlife conservation, citing moral concerns and advocating for ecotourism alternatives. They argue charging hunters to kill animals is a last resort rather than a fallback plan.
A meta-analysis of 126 case studies from five continents reveals mixed-species forest stands are more ecologically valuable and resilient. These forests also exhibit greater productivity, particularly in areas with favorable water supplies.
A new Yale study finds that global lake evaporation will increase 16 percent by the end of the century as a result of climate change. The specific mechanisms driving this phenomenon are not what scientists expected, with other factors such as shortened ice periods and changes in heat energy allocation playing a crucial role.
A new analysis of the 2013 Douglas Complex fire reveals that young plantation forests experienced higher severity fires than nearby public forests. Daily weather was the most significant driver, but ownership, forest age, and topography also played critical roles.
A Kyoto University researcher has captured the first Yanbaru whiskered bat in Okinawa since its discovery in 1996. The critically endangered species was found to have a range-restricted habitat within the Yanbaru Forest, highlighting the need for conservation efforts.
Biologist Judy Simon develops a system to observe interactions between tree roots in 3D, enabling the study of nitrogen uptake and communication. The transparent substrate allows for the observation of root activities, potentially contributing to sustainable forest management.
The study found that between 2009 and 2014, tree cover in urban areas declined by 0.7 percent, resulting in the loss of 36 million trees. This decline has significant impacts on air quality, energy costs, noise reduction, and human health. The annual benefits derived from US urban forests are estimated at $18 billion.
A new study suggests that human changes to the landscape, such as monoculture farming and forestry, are affecting honeybees' long-term food supply. The diversity of bacteria associated with bee bread, a crucial food source for young bees, is lower in hives near agriculturally improved grasslands and coniferous forests.
A new integrated system, ABECCS, combines algae production with bio-energy and carbon capture to act as a carbon dioxide sink while generating food and electricity. This sustainable technology has the potential to reduce greenhouse gases and provide nutritionally valuable products.
Research analyzing 30 years of data reveals that large wildfires significantly increase annual river flow, but also lead to increased contaminants like sediment and nutrients. Prescribed burns, on the other hand, show no significant impact on river flows.
A Yale-led study found that GDP remains linked to metal use even as affluence grows, with a 1% rise in GDP increasing the nation's metal footprint by 1.9%. This challenges the long-held theory that metal use plateaus when GDP reaches $15,000 per person.
Researchers from the University of Missouri found that members of the public are more willing to pay for improved water quality than other ecosystem services. Participants in a nationwide survey consistently preferred higher monthly payments for water quality improvements over flood control and habitat protection.
Scientists have identified a complex signal chain involving the auxin hormone and calcium channels in plant cells. Calcium waves are used to communicate local auxin signals over long distances, influencing root architecture and differentiation processes.