Articles tagged with Ecology
A study by Florida Atlantic University researchers has uncovered the impact of stress on wild songbirds, finding that even mild challenges can alter the gut microbiome, leading to changes in health indicators such as beak color and stress hormone levels.
Engineers from the University of Colorado Boulder have discovered the mathematical rules that fireflies follow to sync up their flashes in a South Carolina swamp. The team's findings could lead to new designs for robots that move in swarms and help scientists understand other examples of synchrony in biology.
Researchers found that ravens rarely trail predators over long distances and instead rely on spatial memory to return to places where kills have occurred before. Ravens treat areas with historically high kill density as predictable foraging sites, indicating that navigation and memory play the dominant role in food source location.
Researchers tracked 69 ravens and 20 wolves across Yellowstone National Park for two and a half years, finding that ravens knew where to go without cues from wolves. Ravens were spotted at nearly half of observed wolf kills within seven days and made beelines to common kill sites.
Research finds extreme cold and rain reduce young bird growth and survival, but earlier breeding can mitigate these effects. In contrast, hot extremes can boost growth by increasing insect activity and visibility.
A recent study on the 2021 North American heat wave reveals that some species, such as sea lettuce, were able to withstand the extreme temperatures, while others, like mussels and blueberry plants, suffered severe declines. The research highlights the importance of understanding these differing effects to prepare for future heat waves.
The Global Coral Tech Transfer Project brings together SECORE International, Australian Institute of Marine Science, and FUNDEMAR to share coral breeding techniques and technologies for large-scale restoration. The partnership aims to create a comprehensive toolbox for boosting reef resilience worldwide.
The Proceedings of the National Academy of Sciences has selected six papers for the 2025 Cozzarelli Prize, recognizing outstanding contributions to physics, biology, and engineering. The winners include studies on dusty plasmas, eukaryote evolution, and sound absorption.
A Europe-wide citizen science study reveals that common buzzards are becoming more uniform in color, with lighter birds found in north and central Europe and darker birds in Brittany and Iberia. The study's findings suggest that the loss of color diversity may compromise the species' ability to adapt to future environmental changes.
Conventional oil and gas infrastructure leaves a deeper mark on freshwater biodiversity than shale gas development in Pennsylvania, according to a new study. The research analyzed over 6,800 benthic macroinvertebrate samples and found conventional development was linked with fewer species and a decline in ecosystem health.
Researchers observed finless porpoises in Ise Bay, Japan, interacting with adults beyond their mothers, challenging the long-held assumption of their solitary nature. Infants approach and swim alongside adults who are not their mothers, suggesting a potential weaker mother-calf bond compared to other species.
A new study by Stockholm University researchers reveals distinct populations of Baltic Sea herring with varying levels of genetic adaptation to local conditions. The findings highlight the importance of genetic diversity in managing herring populations and suggest that current fishing practices may be detrimental to local populations.
A study monitored 60 carcasses in tropical dry forests, finding that better-preserved forests host more diverse scavenger communities with up to 11 species detected. In contrast, degraded environments have simplified communities dominated by opportunistic species, leading to faster carcass consumption.
A new study predicts increasing wildfires and insect outbreaks in European forests due to climate change, altering landscapes and biodiversity. The model simulates changes in forest disturbance rates under three climate scenarios, with wildfire and bark beetle outbreaks projected to intensify.
Researchers found that jackdaw chicks learned to associate predator sounds with danger when paired with adult alarm calls, becoming more vigilant. However, they did not learn from contact calls or a non-predatory birdcall, suggesting an evolutionary process to ensure only biologically meaningful links are learned.
Researchers tracked over 700,000 detections from 222 gilthead seabream using acoustic transmitters, confirming a single, functionally connected population on a large scale. This study highlights the importance of regional acoustic telemetry networks in understanding coastal species connectivity and raises questions about current fish s...
Researchers found that diisobutyl phthalate (DIBP) exposure significantly increases conjugative transfer frequency of antibiotic resistance genes in bacteria, particularly through oxidative stress and altered cell membrane permeability. This study provides a mechanistic framework for understanding the ecological risks posed by DIBP.
Scientists discovered that a single, 2,400-year-old alerce tree protects hundreds to thousands of underground fungal species. These fungi help forests function by funneling water and nutrients to trees and assisting plants in fighting stressors like drought and pathogens.
A prolonged drought in southeastern Connecticut disrupted the balance of key nitrogen-cycling microbes in a coastal salt marsh. The study found that ammonia-oxidizing archaea and bacteria showed significant fluctuations during dry periods, leading to decreased temporal stability.
A study suggests that moths integrate geomagnetic and visual cues to orient themselves during seasonal migration. The research found that visual cues are indispensable for accurate migratory orientation in the fall armyworm species.
Short-eared owls travel long distances to find prey in 'boom and bust' cycles, requiring nuanced perception. Climate change affects these cycles, making conservation efforts crucial for the species' survival.
A new study from Jeonbuk National University finds that current national climate pledges are insufficient to meet the Paris Agreement's 1.5°C temperature goal. The analysis projects a potential warming of 2.48°C by 2300 if countries follow existing plans, highlighting the need for stronger and more immediate action.
A new study reveals widespread and accelerating declines of North American bird populations, particularly in areas with intensive agriculture. The research found that 47% of species studied show significant population declines, with many hotspots experiencing accelerated loss.
A recent study analyzed environmental DNA from the largest global dataset of arbuscular mycorrhizal fungal and found a striking gap: more than 70% of ecoregions lack sequencing data. This underrepresentation threatens biodiversity surveys, plant productivity, soil aggregation, and climate mitigation predictions.
A new mechanochemical approach uses water as a catalyst to transform renewable resources into high-performance porous materials capable of capturing CO2 while removing pollutants. The method produces carbon-negative materials with exceptional hydrophobic characteristics and scalable production.
A study found that night lights affect two marine crustaceans differently, with Ligia laticarpa occurrence correlated to higher nighttime light intensity and Ligia furcata reduced activity under artificial lights. Night lights can structure ecosystems by acting as a barrier between lineages, potentially reducing gene flow.
A pilot initiative led by University College London is using highly detailed 3D scans to estimate tree structure, volume, and stored carbon in tropical rainforests. This data helps scientists better understand how much biomass forests contain, essential for tracking climate change.
A new study reveals that animal species with fast-paced ecologies have faster visual perception, tracking prey in mid-air versus grazing slowly across the seabed. This finding supports Autrum's hypothesis and highlights how ecology shapes the tempo of perception across life on Earth.
A new study explores how artificial lighting at night shapes ecological and genetic patterns of two closely related isopod species, Ligia laticarpa and L. furcata, in Tokyo Bay. The research reveals a clear ecological boundary between the two species, consistent with patterns of urban illumination.
Researchers at the University of Cincinnati found that female caribou gnaw on shed antlers to supplement their diets with calcium and phosphorus, essential for milk production. The study, published in Ecology and Evolution, reveals a previously overlooked benefit of shed antlers in the Arctic ecosystem.
A Canada-wide study using DNA metabarcoding reveals the intricate relationships between cavity-nesting bees and wasps and their food sources. The project, involving over 5000 students, creates detailed maps of these interactions, providing valuable insights into biodiversity and conservation.
Killer whales in southern Alaska have a diverse diet that shifts between Chinook, chum, and coho salmon across different foraging hotspots. The study reveals the importance of accounting for sampling bias in diet studies and highlights the resilience of the region's killer whale population.
Researchers tracked 17 bird species crossing Sahara Desert and Mediterranean Sea using miniature tracking devices. Birds flew at varying altitudes depending on wing morphology and plumage color, with some species flying extremely close to the water surface.
A global study of nearly 15,000 marine and freshwater fish communities found consistent shifts in species composition, body size and feeding relationships over recent decades. Smaller-bodied fish species dominate ecosystems, reshaping food webs and ecosystem function.
A new study found that turtles' brains can detect unexpected visual stimuli independently of their position on the retina, a property previously thought to exist only in mammals. The researchers believe this ability helped animals understand their spatial environment, learn, and survive complex terrestrial environments.
A new study analyzing three decades of research found that animals respond more consistently to lethal humans than non-lethal ones, altering behavior in foraging, vigilance, and movement. Non-lethal human structures can even function as perceived refuges, reducing animal vigilance.
The Ecological Society of America has named 20 graduate students who will receive policy, communication and career training in Washington, D.C., followed by meetings with lawmakers on Capitol Hill.
Researchers analyzed downward climbing behaviors in 21 small-to-medium-sized arboreal mammal species to understand early primate evolution. They found primates used tail-first and side postures more often than non-primates, suggesting upright postures evolved to adapt to tree environments.
A new study estimates that each hectare of tropical forest generates 2.4 million litres of rain annually, enough to fill an Olympic-sized swimming pool. This process is known as evapotranspiration, where the sun's energy is used to transfer moisture from the leaves into the atmosphere.
Researchers identified 255 insect species in perennial grasses, but few in annual grasses, highlighting the importance of unmown refuges for biodiversity
Research conducted by the Universitat Politècnica de València shows that artificial wetlands can retain up to 80% of suspended solids and reduce ammoniacal nitrogen levels. The study highlights the importance of hydraulic design in improving water treatment efficiency.
A sweeping 10-year fishing ban on China's Yangtze River has halted 70 years of freshwater biodiversity decline. The ban, coupled with improved water quality and environmental management, has led to a significant increase in fish biomass and the recovery of endangered species.
Researchers used genome sequencing to identify blight-resistant trees with high American chestnut ancestry, preserving the species' ecological and cultural importance. The approach, known as genomic selection, allows breeders to predict resistance and make better decisions earlier in the breeding process.
A new study highlights the importance of addressing multiple threats simultaneously to reverse biodiversity loss. Climate policies and amphibians are particularly affected by combined effects of habitat loss, exploitation, disease, invasive species, pollution, and climate change.
A new study uses genomic tools to accelerate chestnut restoration, preserving ecological identity and improving blight resistance. The approach enables breeders to identify promising seedlings before years of field testing.
A UT San Antonio assistant professor is studying how climate change and urbanization affect freshwater ecosystems by tracking the expansion of exotic tropical fish species into northern regions. The project aims to provide practical tools for natural resource managers to protect Texas waterways.
A new study finds that food chains on modern Caribbean coral reefs are 60-70% shorter than they were 7,000 years ago. Individual fish have lost dietary specialization, leading to a compression of the distance between different trophic levels.
A juvenile great white shark was incidentally caught in Spanish waters, raising questions about the species' biology and ecology. The study confirms continued, though sporadic, presence of white sharks in Mediterranean waters.
A new study by Tokyo University of Science found that floods are the biggest drivers of plastic pollution in rivers, increasing microplastic and mesoplastic concentrations by orders of magnitude. The research highlights the need to include high-flow events when assessing plastic emissions.
A study found that shelterbelts in agricultural wetland landscapes reduce grassland species and wetland biodiversity, creating a trade-off for bird communities. The research suggests that agri-environmental policies must balance structural complexity with ecological needs of open-habitat species.
Pentachlorophenol exposure triggers inflammatory responses and oxidative stress, leading to liver damage and compromised immune function. The study identified the Toll-like receptor signaling pathway as a key mechanism of PCP-induced immunotoxicity.
A newly discovered deep-sea chiton was named Ferreiraella populi through a public naming contest on social media. The name translates to 'of the people' and was chosen from over 8,000 submissions.
A new study reveals that loosely social species, which don't form stable groups, are more vulnerable to extinction due to population declines that limit social interactions. These species can struggle to survive without the benefits of social connections, such as finding food and spotting predators.
Researchers developed a new theoretical framework that links individual animal movements to population dynamics across space and time. The range-resident logistic model incorporates interactions between multiple animals, providing a more accurate prediction of population sizes and helping inform real-world conservation recommendations.
The KIT Center Climate, Environment and Resources is developing resource-efficient closed-loop systems to reduce environmental impact. The project aims to analyze resource and energy flows in material and product cycles to optimize circular production.
Researchers from Hokkaido University used a new method to track groundwater levels and greenhouse gas emissions in Southeast Asia's peatlands, finding they release more gases than previously thought. Human activities like drainage and agriculture increase emissions by tripling or sixfolding, contributing 30% of Japan's annual emissions.
Professor John P. Smol, a leading researcher on Arctic environmental changes, received the prestigious Mohn Prize from Norwegian Prime Minister Jonas Gahr Støre. Smol's work has provided crucial knowledge for addressing acid rain and pollution, with significant impacts beyond local communities.
A study published in Nature Communications reveals the presence of previously unknown viruses in groundwater, which influence microbial community dynamics and nutrient cycling. The findings suggest that viruses are active players in shaping the groundwater microbiome.
The 60th International Waterbird Census has estimated the size and trends of waterbird populations, identified priority wetlands for waterbirds, and supported wetland protection and management. La Tour du Valat has contributed significantly to these efforts, particularly in the Mediterranean region.
Early marine algae like prasinophytes relied on Lhcp, a unique LHC complex with structural differences from plant LHCII. These similarities and differences may have enabled plants to transition from oceans to land, driven by the stabilization of trimer architecture through pigment-protein interactions.