Articles tagged with Ecological Processes
A team of researchers analyzed over 4,600 field experiments and found that gradual changes can have devastating consequences on ecosystems. The study suggests that focusing solely on tipping points may overlook the negative impact of gradual changes, and that a more nuanced approach is needed to develop effective environmental policies.
More than 500 terrestrial vertebrate species are on the brink of extinction, with fewer than 1,000 individuals remaining. Human activities in tropical and subtropical regions have driven the collapse of regional biodiversity, threatening numerous species.
Human activity significantly disrupts the natural balance of nitrogen, posing a threat to terrestrial and aquatic life. The special issue examines the cascading consequences of rising nitrogen levels in circulation.
The PaNDiv experiment reveals that increased nitrogen application shifts the plant community towards fast-growing species, leading to faster litter decomposition. This change has a feedback loop effect, producing more nitrogen in the soil, which further accelerates decomposition.
Warm spells in UK winters are occurring more often and for longer periods than ever before. The analysis of historical temperature data shows that week-long warm intervals now consistently exceed 13 degrees C, a threshold that was previously rare and typically occurred every 5 years.
Deep-sea mining disturbs seabed ecosystems, affecting microorganisms and their biogeochemical functions for extended periods. The study found that even after 26 years, disturbance effects persisted, highlighting the need for sustainable technologies to avoid removing densely populated surface layers.
The extinction of threatened marine megafauna species could result in a loss of 11% of the extent of ecological functions if current trajectories are maintained. Sharks are predicted to be the most affected, with losses of functional richness far beyond those expected under random extinctions.
A new study analyzed 1,800 tropical reef sites worldwide to understand conditions for maximizing reef health and biodiversity. The findings suggest that high conservation levels can support all three key ecological metrics when human use is low, but become increasingly challenging with increased pressure.
Tropical forests are losing carbon storage potential over time due to changes in structure and function at forest edges. Along these boundaries, the study found aboveground carbon storage declines of 22% up to 100 meters from the edge.
A study on the BEF-China experiment found that directed species loss in high-diversity ecosystems leads to significant reductions in forest productivity. The researchers simulated both random and directed species extinction scenarios and analyzed the data, revealing that diversity alone does not protect against losses.
A new study reveals that biodiversity increases the efficiency of energy use in grasslands by storing more energy, having greater flow of energy and using energy more efficiently across all trophic levels. Ecosystems with higher plant diversity contain twice as much standing biomass compared to monocultures
A new study reveals a never-before described natural process in soil that converts nitrogen gases into nitrates through the action of visible and ultraviolet radiation. This finding is crucial for understanding the nitrogen cycle in soil, which affects global sustainability, productivity, and air quality.
Researchers discovered over 120 clusters of nearly two-centuries-old orchid bee nests built on the altarpiece of a Basilica Cathedral in Casco Viejo, Panama. The analysis of preserved pollen revealed 48 plant species, indicating a diverse floral landscape surrounding the cathedral in the late 19th century.
Recent studies have reported dramatic declines in mayfly emergence over major North American waterways, with up to 87.9 billion mayflies observed emerging annually. Deteriorating water quality, including warming water and nutrient-rich runoff, is believed to be the primary cause of these declines.
Researchers developed a novel machine learning procedure that resolved Paleozoic biodiversity to within 26,000 years, clarifying diversification and extinction events. The improved resolution revealed new aspects of Paleozoic biodiversity and showed a correlation between atmospheric carbon dioxide levels and paleobiodiversity change.
A global database of 10,000 bird species shows that body measurements can predict a species' role in an ecosystem. The study found that similar body shapes are often associated with similar lifestyles and dietary preferences, even among distantly related species.
A coalition of scientists argues that too little action has been taken to curb climate change, citing 'profoundly troubling signs' from human activities. The authors propose six key objectives to alleviate climate change, including energy sector reform and a carbon-free economy.
A study by NRRI scientist Chris Filstrup found that the evenness of species distribution is a stronger signal of ecosystem function than species richness. This discovery has implications for conservation practices and understanding biodiversity loss impacts, especially in the face of climate change stress.
A long-term study found significant declines in live, hard corals on Great Barrier Reef island groups, with temperature stress and wave exposure identified as key drivers. The research highlights the importance of addressing water quality and climate change to prevent ecosystem collapse.
A new drought index, SEDI, sensitively captures biological changes in ecosystems due to drought evolution. The study assesses its effectiveness in highlighting vegetation responses to climatic fluctuations and heavy droughts.
A new study from the University of Surrey found that involving citizens in air quality research improves their understanding of pollution's impact on health. Citizens were encouraged to debate research and conduct their own studies, resulting in more accurate knowledge.
The British Ecological Society is conducting a randomized controlled trial to compare single- and double-blind peer review processes. The study aims to assess whether author characteristics affect peer-review scores and acceptance of papers, with a focus on reducing bias in science publishing.
A Thai research team has created a novel approach for simultaneously detecting and detoxifying harmful phenol compounds in one step. The innovative technique leverages natural enzymatic reactions to convert toxic chemicals into luciferin, a bioluminescent compound produced by fireflies.
Research found that introduced species dilute the effects of evolution on diversity, making Hawaiian forests more similar. Older islands have a greater number of rare and native species compared to younger ones, but introduced species weaken this effect.
Researchers found that microaerobic Fe(II) oxidation coupled to carbon assimilation processes driven by microbes from paddy soil. The study identified the potential microaerophilic Fe(II)-oxidizing bacteria in paddy soil and confirmed their ability to couple iron cycling with carbon transformation.
Researchers from Singapore University of Technology and Design uncovered a negative feedback loop in terms of decentralization in public blockchain philosophy. The findings indicate that incentives for miners to merge and act as single entities contribute to centralization, revealing a need for further research.
Scientists argue that rewilding measures can restore damaged ecosystems by examining functions, analyzing disturbances, and deriving targeted measures. Successful rewilding projects like the Oder river delta demonstrate environmental and social benefits.
Researchers at the Santa Fe Institute and MIT find that continuous-time systems must have hidden states and finite hidden timesteps to exhibit two-time dynamics. This discovery has implications for understanding biomolecular processes, ecosystem evolution, and financial market behavior.
Researchers found that a warming winter climate has led to a 41% increase in woody vegetation on protected areas, altering the rate of marsh to upland conversion and accelerating island erosion. The study provides new insights into the ecological and geomorphic processes occurring on Virginia's barrier islands.
A recent study on Mount Kilimanjaro reveals that land use and climate interactions significantly impact tropical mountain ecosystems, resulting in reduced biodiversity and altered ecological functions. The research found that different elevation zones exhibit varying levels of change, with the savanna zone being particularly vulnerable.
A University of Oklahoma study found that climate warming significantly impacts microbial biodiversity in tallgrass prairies, with warmer temperatures increasing phylogenetic diversity over time. This could have significant implications for ecosystem management and conservation strategies.
A recent study suggests that dam removals can be anticipated by understanding the unique environmental conditions at each site and their impact on aquatic species recolonization, sediment flow, and water quality changes.
Researchers identified genes encoding oxidoreductases as key attributes for characterizing global microbial communities. This approach provides a new diagnostic tool for assessing ecosystem services and developing management policies. The study sheds light on the critical role of microorganisms in planetary physiology.
Researchers estimate carbon emissions from farmland reclamation in China over the past 300 years, with vegetation emissions ranging from 1.58 Pg and soil emissions from 1.35 to 4.03 Pg. Carbon emissions vary greatly across ecosystems, with forests releasing the most and deserts acting as carbon sinks.
Forest termites play a crucial role in maintaining ecosystem function during droughts by decomposing organic matter, mixing soil nutrients, and regulating moisture. Their increased activity during drought helps buffer important soil processes critical for tropical forest survival.
Researchers from UNIGE developed an AI-based approach combining genomics and machine learning to analyze microbial biodiversity and diagnose ecosystem health on a large scale. The method uses genomic tools to sequence DNA of microorganisms, then builds predictive models to identify species performing key functions.
A new study examined ancient ecosystems to understand what drives stability, finding that functional groupings are more important than the sheer number of species present. The team also found that ancient ecosystems were more stable than simulated systems, suggesting a strong imprint on history of how ecosystems are built over time.
Researchers have found that rewilding can mitigate the impact of rising temperatures in the Arctic, reduce greenhouse gas emissions from livestock farming, and enhance wetland plant diversity. The approach involves reintroducing native carnivores to suppress invasive herbivores and restore ecosystem balance.
A warming-induced shift in microbial community composition requires more biodiversity to maintain ecosystem function due to the increased likelihood that remaining species will not tolerate rising temperatures. The study suggests that warmer conditions may accelerate the impacts of biodiversity decline on ecosystems.
A new study by Michigan State University establishes a baseline of organisms that play key roles in carrion decomposition, promoting the importance of death in ecosystems. The research also highlights the complex interactions between decomposer communities and their impact on nutrient cycling and ecosystem processes.
The National Science Foundation awards $9 million for nine new research projects using ecological data from the National Ecological Observatory Network (NEON) to address long-standing questions about climate, land use and invasive species. MacroSystems Biology projects explore ecological interactions across spatial and temporal scales.
Warm-water kelps alter ecosystem functioning, with faster food production and processing, but may reduce biodiversity. Kelp forests are expected to survive, unlike in other regions where they are disappearing.
A new study finds that warm-water kelp species are outcompeting cold-water species in UK kelp forests, leading to changes in ecosystem functioning. The warm-water kelps provide a continuous supply of food but also harbor less biodiversity.
A research coordination network is being developed to improve understanding of intermittent rivers' ecology and hydrology. The network, led by OU biologist Daniel Allen, will synthesize existing data on US intermittent rivers to study their structure and function.
A study analyzed soil horizons in 11 US cities, finding approximately 50% fewer soil horizons than pre-urban soils. The researchers attributed changes to local management processes such as soil removal, mixing, and fill additions, leading to potential effects on ecosystem functioning.
Researchers used spectral data to measure plant diversity and predict ecosystem function, finding that it was more effective than traditional methods. The study showed that spectral dissimilarity among plant species increased with functional dissimilarity and evolutionary divergence time.
Fuentes asserts that humans are distinctive, yet share similarities with apes. He proposes that human ability to alter ecosystems is our most distinguishing feature, enabling creative cooperation, technological innovations, and artistic expression.
A new framework for global conservation prioritization is presented, incorporating four-step process of harm avoidance, minimization, remediation, and offsetting. The approach aims to establish effective conservation priorities, bridging current regulatory gaps and enabling more efficient conservation.
Plants may have exerted greater influence on terrestrial ecosystems than megaherbivores that once roamed landscapes. Shrubs consistently predicted ecosystem change, with increasing shrub biomass reducing nitrogen availability and promoting tree growth.
A themed issue in Philosophical Transactions of the Royal Society B gathers researchers exploring collective movement ecology, merging movement ecology and collective animal behavior. New technologies and data from wild groups are being integrated to inform conservation decision-making.
A study by University of South Florida researchers found that animal species are shifting the timing of their seasonal activities in response to changing temperatures and precipitation patterns. This shift can have adverse effects on ecosystems, human food supplies, and diseases.
Entomologist Paul Marek has discovered a new millipede species, Apheloria polychroma, which boasts an impressive array of colors and contains cyanide that deters birds from snacking on it. This unique trait also helps other millipedes evade predators through Mullerian mimicry.
Max Planck fellow programme extended to strengthen cooperation between institutes and universities, focusing on global biodiversity database TRY. Joint projects explore ecosystem functioning in Amazonian forests and biodiversity effects via remote sensing.
Researchers at Northeastern University are working to bridge the 'practice science gap' by connecting practitioners with biodiversity research. The goal is to improve restoration project outcomes by applying scientific knowledge to practical implementation.
Argonne is collaborating with HPE to evaluate early versions of Cavium ARM ThunderX2 processors for the ARM ecosystem, seeking a cost-effective alternative to x86 architectures. The Comanche Wave prototype ARM64 server platform will be installed at Argonne's testing environment to support this work.
Researchers at Critical Zone Observatories (CZOs) will discuss various topics related to the critical zone, a region where fresh water flows, rock turns to soil, and life flourishes. Studies include the effects of Hurricane Maria on the Luquillo, Puerto Rico, critical zone and wildfire in the critical zone.
Scientists from RUDN University have classified the distribution of soil microorganisms at different latitudes, discovering that soil properties are the primary factor in determining microbial composition. The study revealed that climate and vegetation play a lesser role in shaping microbial communities.
Researchers find that certain patterns of collaboration are more effective in solving shared environmental problems, with tightly linked actors working together improving outcomes. A socio-ecological 'fit' between networks and ecosystems also increases the possibility of effectively solving environmental problems.
A recent study reveals that a third of marine megafauna disappeared around three to two million years ago, leading to a significant reduction in species diversity. The loss of functional entities resulted in an erosion of ecological functions, with 17% of total diversity disappearing and 21% changing.
A new study in BioScience explores the role of thermal landscapes in rivers, shedding light on how humans affect water temperature patterns. The research highlights the importance of fine-scale data and models to restore ecological balance and prevent degradation of riverine ecosystems.