Articles tagged with Ecosystems
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.
Current climate models underestimate species extinction rates by neglecting the complexities of ecosystems. Researchers used piñon pine data to model how climate affects tree populations and distribution, finding indirect effects that cannot be captured by climate-only models.
A study by VUB researcher Ari Ximenes uncovered factors that prevent mangroves from spreading in South America. Longshore drift and chilling temperatures are major factors hindering the southward expansion of mangrove species.
Scientists discovered that fungal endophytes convert chitin to chitosan, a natural plant defense activator, to evade host defense. This conversion enables the fungus to live in symbiotic association with grasses, protecting them from biotic and abiotic stresses.
The Resist-Accept-Direct framework offers three pathways for managers to respond to ecological transformation: resisting, accepting, or directing change. The framework has been developed by natural resource managers and ecologists to guide decision-making in the face of intensifying global change.
A study by the University of Bonn shows that building Africa's 'Green Wall' is economically worthwhile due to its long-term provisioning services, such as food and water production. However, the project faces challenges in regions plagued by conflicts, which limit its potential.
Researchers have developed a new method that uses deep neural networks to predict extreme heat waves with unprecedented accuracy, up to two weeks before they occur. This breakthrough has significant implications for risk management, planning, and warning systems, which will greatly improve public safety and support public policies.
A 30-year study in Brazil found that increased ultra-processed food consumption is linked to worsened environmental impacts, including greenhouse gas emissions, water footprint, and ecological footprint. Experts warn that this trend may soon affect other countries due to growing economies and nutrition transitions.
New research from Stanford University reveals whales eat twice as much krill as previously estimated, impacting ocean ecosystem productivity. The decline of baleen whales has led to a decline in krill populations, highlighting the complex role of whales in their ecosystems.
The number of wild bees has fallen by 25% since 1990, threatening plant reproduction and food production. Researchers must assume social responsibility to communicate their knowledge and work in transdisciplinary coalitions to halt the decline.
A 1.5°C temperature increase affects algae and animal species living on UK coastlines, with significant changes in species abundance and breeding patterns. The study highlights the importance of considering local temperature variations when predicting climate change impacts.
Researchers tracked black-tailed deer before, during, and after the Mendocino Complex Fire, finding that all 18 deer survived. Despite burned areas with no vegetation, most deer returned home within hours, potentially due to their loyalty to habitat. However, some deer's body condition declined as they expanded their range.
The study suggests that unsustainable wood harvesting by the Ancestral Puebloans occurred around 2000 years ago in Chaco Canyon, USA. This practice had significant ecosystem impacts, which are still being felt today.
Researchers at Duke University used mini ecosystems to test the effects of warming on bacteria-eating protists. They found that simple measurements of species traits could predict their response to temperature, shedding light on how climate change will alter microbial communities and influence the pace of global warming.
A new study reveals that incorporating lateral groundwater processes into forest models can significantly impact predictions of tree survival in drought conditions. By accounting for the sideways flow of water through soil, scientists can better understand how riparian forests will respond to future climate change.
A new study reveals that road development in sub-Saharan Africa has negative impacts on biodiversity, both inside and outside protected areas. The researchers found that roads act as barriers to movement, facilitate access to previously inaccessible land, and contribute to urbanization, logging, and cropland expansion.
The study reports 21 species of Pakistan's amphibians, highlighting the need for conservation strategies to control populations and address human-caused threats. Researchers propose an inclusive wildlife conservation approach incorporating poorly documented taxa like amphibians to maintain ecosystem health.
A new study from the University of Illinois evaluates fintech systems in 16 emerging markets, finding that digital technologies improve access to financial services. However, vulnerable populations face barriers to usage due to digital literacy, cost, and limited consumer protections.
Research in Borneo suggests that forest patches adjacent to palm oil plantations provide critical habitats for generalist species, including the Asian water monitor lizard. These refuges help maintain biodiversity in oil palm-dominated landscapes.
Scientists at Stanford University have discovered a pattern in how life reemerges after mass extinctions. In the past half-billion years, smaller marine genera were substantially more likely to be wiped out during mass extinction events, but during recovery intervals, originators tended to be tiny compared to holdover species.
Research from the University of East Anglia found that communities living within Amazonian Sustainable-Use Protected Areas enjoy better access to essential services, including healthcare, education, and electricity. These areas also lead to improved livelihoods, with household wealth and life satisfaction increasing significantly.
Female vampire bats with close social bonds leave the roost separately but reunite when hunting, indicating a preference for cooperative foraging. The study also reveals three distinct call types used during foraging trips, including one that may help identify friends and foes.
A new study led by Rachel Penczykowski investigates the hydra effect in water fleas, where parasite infections trigger a counterintuitive increase in population density. The researchers found that infected water fleas consume less algae, leading to an abundance of resources for uninfected individuals.
A new study predicts that climate change will cause a sudden shift in algae distribution pole-wards over the next 100 years, affecting marine ecosystems. The UK is among the areas most likely to be severely impacted due to its warm waters, with changes potentially occurring before previously thought.
A team of researchers has discovered a new group of coral-infecting microbes called Corallicolida. Despite lacking photosynthetic genes, they express chlorophyll genes and may still play a role in their host cells. The authors propose that Corallicolida could be an ancient parasite that lost its photosynthetic machinery.
Researchers analyzed past fires in Klamath Mountains, finding that weather and fuels impact non-reburns while reburn intensity mirrors previous fires. Prescribed fire and wildfire management can limit severe fire conditions, maintaining moderate weather for future fires.
A study published in PLOS ONE reveals a surprising diversity of Cretaceous reptiles at an Argentina fossil site. The research expands the known diversity of reptiles at the Cerro Fortaleza locality, which previously only preserved skeletal remains of giant sauropods.
The New Roots for Restoration Biology Integration Institute aims to integrate plant traits, communities, and the soil ecosphere to advance restoration of natural and agricultural ecosystems. The project seeks to understand how root traits influence plant interactions with each other and with the soil.
A new study by Tufts University researchers identifies a high risk of forced labor in US fruits and vegetables, with most food-country combinations coded as high risk. The study's findings highlight the need for policymakers, farmers, and food companies to address systemic issues in food supply chains.
Researchers in Peru have estimated the population density of spectacled bears and identified an unknown hotspot, revealing over 10 bears per 100 square kilometers. The team also observed the first 'golden' bear with nearly golden fur, sparking further investigation into its unusual characteristics.
A new study found that US-China trade tensions would lead to increased nitrogen and phosphorus pollution and irrigation water consumption in agriculture, affecting not only the two countries but also other nations through international trade.
A new global risk index highlights the alarming decline of pollinators, which are crucial for food production and ecosystem services. The top causes of pollinator loss include habitat destruction, pesticide use, and climate change, with serious consequences for human populations, particularly in the Global South.
The winning image by Kristen Brown depicts a school of jack fish in a spiral formation, symbolizing the beauty and bounty of oceans as well as the spiralling crisis of coral reef decline. The competition celebrates Earth's biodiversity and its evolutionary origins through six categories.
A long-running survey of ants at Stanford's Jasper Ridge Biological Preserve found that the distribution of Argentine ants has receded by 30% since 1994. Climate change was identified as a significant factor in this decrease, particularly during an extreme drought from 2012 to 2015.
A new study in Molecular Ecology found that blood-sucking flies specialize on bats by following chemical cues from skin bacteria. Researchers analyzed dozens of bat species and identified unique bacterial profiles associated with each group.
New research shows that certain types of urban greening efforts can support multiple ecosystem services provided by plants and insects. Large green spaces with native plants, particularly flowering prairies, are ideal for conserving native bees and predatory wasps.
A 48-year record of Australian collecting trips has been made publicly available, providing accurate details on specimen collection dates and locations. The data is now accessible via the Zenodo open-data repository in Darwin Core format.
Researchers developed a model that shows diverse supply chains can explain up to 90% of historically observed food supply shocks in US cities. This finding has practical implications for boosting city supply chain resilience and developing policies to mitigate supply chain shocks.
The study highlights the alarming loss of Indigenous Peoples' and local communities' knowledge systems, with dramatic social and ecological impacts. The authors emphasize the need for support to sustain these knowledge systems and practices, essential for safeguarding biological and cultural diversity.
The study reveals a decline of over 1,200 km2 in California's blue oak range due to prolonged droughts and warmer temperatures. This loss is accompanied by conditional change, indicating health, productivity, and susceptibility issues.
EarthLab aims to simulate physical climate, environmental, and ecological systems for better predicting natural disasters and understanding Earth's spheres. The facility will enable researchers to predict Earth systems on a vast time and spatial scale.
A new analysis of exoplanets reveals that Earth-like conditions for oxygen-based photosynthesis are much rarer than thought. Only a handful of potentially habitable planets have the necessary energy for complex biospheres to develop, with Kepler-442b being one exception.
A diverse range of microorganisms were discovered in the Kuzbass coal seam, including bacteria that can convert poisonous carbon monoxide into CO2. These microbes have unique metabolic capabilities, allowing them to thrive in extreme environments.
A new study reveals that human impact on freshwater ecosystems is causing unprecedented rates of species loss, threatening entire ecosystems. The predicted recovery time for biodiversity decline may be longer than 12 million years, as seen in previous mass extinction events.
The study adapts mathematical models from ecology to understand Twitter's interaction patterns. The researchers identified two primary behaviour patterns: a modular state with fragmented attention and a nested state during exceptional events.
A recent study suggests that climate change may cause a decline in plant diversity, particularly in dryland regions. The researchers found that changes in precipitation levels have a greater effect on plant diversity in drylands compared to wetter regions.
A recent study published in Science found that human activities have significantly altered biodiversity on 27 islands across different regions over the past 5,000 years. The researchers discovered a marked acceleration of species composition changes after human colonization, particularly on islands settled within the last 1,500 years.
A new study from the University of Amsterdam and the Dutch State Forestry Service highlights the importance of landscape in rewilding efforts. Researchers developed an index to measure and predict rewilding success, finding that varied landscapes show greater conservation potential.
A recent report highlights the profound implications of human actions on the biosphere, emphasizing the need for effective planetary stewardship. The study reveals that humanity is now the dominant force of change on the planet, and that we are at the dawn of a transformative decade.
A new study suggests that Earth's oxygen-rich atmosphere will likely persist for around one billion years, with a high degree of uncertainty. The researchers used a numerical model to simulate climate and biogeochemical processes, finding that the atmosphere will probably decline in oxygen levels due to CO2 scarcity.
Microbial communities in Alpine soils under threat as global temperatures rise due to climate change. Early spring snowmelt disrupts seasonal transitions, impacting biogeochemical cycles and winter ecosystem functioning.
A recent study published in Communications Biology analysed the relationship between parasite dispersal capacity and genetic introgression rates. The research found that species with higher dispersal abilities present increased genomic signatures of introgression, which could have implications for understanding parasite-host dynamics.
Researchers investigated the taxonomic composition and functional characteristics of filtrable freshwater organisms using radioisotope tracers and metabolomics. The study found that nanobacteria play a minor role in processing dissolved organic carbon, with limited time to uptake matter in rivers and streams.
Researchers at the University of Exeter have made groundbreaking discoveries about the region's history, revealing new insights into its fertile past. The study sheds light on the region's unique ecosystem and its potential for dairy production.
In ecological networks, synchronization and transients are unified through symmetry and stochasticity. Cluster synchronization emerges due to intrinsic symmetries of the network, exhibiting transient behavior with intermittent switching among distinct patterns.
Researchers used symbolic regression to explain why some species exist in certain regions and the number of species on islands increases with age, peaking at intermediate ages. This breakthrough proposes that explainable AI is a promising field for human-machine cooperation in ecology
Researchers analyzed gut composition and DNA to identify key factors for successful fecal microbiota transplants, including the donor's microbiome and recipient's pre-transplant gut community structures. The study suggests that preparing donors' and patients' gut ecosystems prior to transplant may increase the likelihood of success.
Kyoto University researchers highlight the need for targeted conservation efforts due to 90% extinction risk for Japanese bat species. The study reveals poor alignment between conservation needs and research resource allocation, with many threats understudied.
At a depth of 1,180 meters, temperatures of up to 120 degrees Celsius were reached, but microbial populations collapsed at around 45 degrees. Endospores, dormant cells of certain bacteria, increased rapidly and persisted in hot zones.
Scientists have developed a method to detect radical changes in ecosystems, revealing increased risk of extinction and new species creation. The method tracks ecosystem shifts above a certain threshold, allowing researchers to predict and mitigate the impact of environmental changes.