Articles tagged with Environmental Stresses
A team of researchers has made the southernmost discovery of amber in the world, revealing environmental conditions and forest ecosystems near the South Pole. The 'Pine Island amber' provides direct insights into a swampy, conifer-rich, temperate rainforest environment 90 million years ago.
The study presents a lignin-based hydrogel that combines mechanical strength with bioactivity, promoting wound healing and sustained drug release. The hydrogel's controlled-release properties make it an ideal candidate for treating complex wounds and reducing medication side effects.
A study by University of Pittsburgh researchers found that Black patients are two to three times as likely to retain or gain additional weight compared to white counterparts. The study suggests interventions addressing the underlying stressors of discrimination could complement community and clinical interventions.
A University of Minnesota Medical School research team found that social stress causes DNA damage and senescence in preclinical models, accelerating aging. The study highlights a potential way to understand how life stress impacts the aging process.
Researchers found that 57% of tested chemicals altered fruit fly larvae behavior significantly, even at non-lethal doses. Long-term survival was compromised in a dose-dependent manner, with a 60% drop in egg-laying rates observed among exposed mosquitoes and Painted Lady butterflies.
A three-decade study found polar bears exposed to increased pathogens due to environmental changes, with females at higher risk. The study, published in PLOS ONE, highlights the need for further disease screening in polar bear populations.
The University of Cincinnati is launching a new climate change health research center, focusing on vulnerable populations and extreme heat exposure. The center aims to reduce risks for people, especially in economically disadvantaged urban areas.
A new study analyzed climate factors' impact on internal migration, revealing regions prone to drought-induced migration, such as Africa, the Middle East, and South Asia. The research highlights the need for policies addressing drivers of migration and consequences for destination regions.
A study by Marco Percoco and colleagues reveals that worsening aridity and droughts lead to increased internal migration, with rural areas hit hardest. As climate change affects agriculture and water supplies, people are forced to relocate towards urban areas, exacerbating pressure on cities.
Researchers investigate links between environmental exposures, air pollution, and temperature with EMS transports for health emergencies. The study aims to guide decisions on resilient healthcare infrastructure as climate changes.
Climate change is releasing more contaminants into the ocean, affecting marine ecosystems. Human activities and natural sources are mobilizing and increasing contaminant flows due to rising sea levels and melting glaciers.
A human rights-based approach to coral reef protection could ensure governments are held accountable for safeguarding marine ecosystems. An estimated one billion people rely on healthy coral reefs globally for food security and income, highlighting the catastrophic impact of their loss on human health and economic wellbeing.
Coastal forests face uncertain future as sea levels rise, with trees more vulnerable to saltwater flooding than marshes. Tree ring analysis reveals nuanced effects of flooding, temperature, and precipitation on tree growth, highlighting species- and site-specific factors.
Researchers are conducting a comprehensive health and nutrition examination study to assess the status of active-duty service members. The study will gather data on dietary intake, nutritional status, cardiovascular health, and other measures to guide evidence-based screening and intervention strategies for improving health in the mili...
A new study published in Nature Ecology & Evolution found that warmer temperatures and nitrogen fertilization can stabilize soil carbon levels, contradicting earlier predictions. Plant roots and growth add new carbon to the soil, counteracting the loss of carbon due to climate change.
A new study suggests that altering coral feeding habits could aid their recovery from bleaching events caused by rising ocean temperatures and acidification. Feeding corals zooplankton after a bleaching event improved their resilience to warming temperatures, promoting growth and enhancing recovery rates.
Researchers found that women exposed to higher levels of nitrogen dioxide and inhalable particulate matter during the second trimester face an almost fourfold increased risk of postpartum depression. The study also discovered a sustained effect of air pollution on symptoms of depression for up to three years after birth.
Grey reef sharks are deserting coral reefs in response to environmental stress caused by warming oceans. The study found that sharks are choosing to move into offshore waters, exacerbating declines in shark populations already threatened by exploitation.
A new study by Penn State researchers found that middle-aged and older women are more susceptible to extreme heat due to physiological changes. The study identified specific temperature/humidity levels safe for women as they age, providing valuable information for setting policies during heat waves.
A study from the University of Tokyo found that incorporating humidity data into heat stress indicators improves predictions of climate-related deaths. The researchers analyzed data from hundreds of cities and found that humid environments, such as coastal areas, are more accurate predictors of heat-related mortality.
A recent study reveals that urban trees are more negatively impacted by heat waves and drought than their rural counterparts. The research highlights the challenges urban trees face in the context of climate change, underscoring the importance of tailored urban forestry management to protect tree species and reduce urban heat islands.
Toxic pollution is the single largest cause of death and poor health, killing up to 9 million people each year. Business can play a critical role in addressing it and mitigating its effects by embracing innovations like adaptive construction and alternative energy options.
A study on wild tomato species reveals that a plant's vigor plays a significant role in its salt tolerance. The researchers found correlations between traits like transpiration rate, shoot mass, and ion accumulation with plant performance under salt stress.
The study found that Tipuana tipu grows faster at higher temperatures and can contribute to urban climate resilience. The tree can thrive in restrictive weather conditions, providing ecosystem services such as carbon capture and temperature regulation.
A KAUST-led study reveals that plant trait diversity increases above an aridity threshold of 0.7, challenging the view that harsh environments reduce biodiversity. The research found that chemical and morphological traits respond similarly to changes in aridity and grazing pressure.
A new study found that microplastics impact plant reproduction, while seawater flooding causes greater tissue death in coastal plants. Combining both stressors amplifies threats to ecosystem wellbeing.
A study by the University of Essex found that oil and gas extraction can cause a nearly 30% decline in species richness near platforms, with pollutants like hydrocarbons up to 10,613% higher within 500m. This has a direct impact on marine invertebrates and food webs.
A research team led by Clemson University Professor Shahid Mukhtar aims to identify natural biological solutions through the microbiome to help soybeans survive extreme heat and drought. The study will focus on the cellular level, soil microbiomes, and plant responses to environmental stresses.
A new study from the University of Nebraska-Lincoln examines fossil records going back 66 million years, tracking changes in mammalian ecosystems and species diversity. The research reveals that following the mass extinction of non-avian dinosaurs, mammalian communities experienced a surge in functional diversity for 10 million years.
A recent study found that nearly 50% of non-Indigenous localities and 54% of Indigenous villages in the Brazilian part of the Amazon basin are prone to isolation during severe droughts. Severe droughts result in extended periods of low water levels, affecting communities' access to goods, services, healthcare, education, and livelihoods.
The Texas A&M Center for Environmental Health will promote research in four areas of environmental health, including climate change and health, environment and metabolism, and environmental justice and policy. The center aims to facilitate collaboration between researchers and make funding more accessible for junior faculty.
Research reveals wildfire ash can have devastating consequences on Australian water ecosystems, affecting both terrestrial and aquatic organisms. The study found that two common crustacean species had varying levels of sensitivity to ash concentrations, with some unable to survive even low doses.
A new study reveals that a type of desert moss called Syntrichia caninervis has the potential to grow on Mars due to its ability to tolerate extreme temperatures, radiation, and dehydration. The researchers tested the moss's resilience in various conditions and found it to be one of the most radiation-tolerant organisms known.
The National Institute of Environmental Health Sciences (NIEHS) has awarded a four-year, $5.2 million grant to Wayne State University's Center for Urban Responses to Environmental Stressors (CURES). The CURES team will investigate the basis for urban environmental health disparities and the human health impact of environmental exposure...
Researchers at NUS discovered a novel mechanism in plants that removes excess chloride ions from roots, enhancing salinity tolerance. This discovery could improve the salinity tolerance of crop plants in the future.
A new study by RIKEN CSRS shows that biomass from purple photosynthetic marine bacterium Rhodovulum sulfidophilum is an excellent nitrogen fertilizer, effective as inorganic synthetic fertilizers but with lower environmental side effects. The biomass boosts plant growth without altering soil pH or salinity.
A new study published in JACC: CardioOncology found that air pollution significantly increases cardiovascular disease and mortality in cancer patients, contributing to health disparities. Short-term exposure to high pollution levels rapidly impacts cancer patients' cardiovascular health.
The CCR4-NOT complex plays a crucial role in regulating RNA metabolism and stress response in C. elegans, compromising stress resistance and decreasing lifespan when depleted of subunits. This study highlights an important new role for the CCR4-NOT complex in normal aging and longevity.
A new system developed by Boyce Thompson Institute makes affordable, mobile and high-throughput phenotyping tools accessible worldwide. This allows researchers to conduct data-driven studies on plant growth and responses over time, accelerating breeding of more resilient crop varieties.
A recent study reveals a significant link between PM2.5 air pollution exposure during pregnancy and low birth weight in newborns worldwide, highlighting the urgent need for stricter air pollution controls. The study emphasizes the impact of air quality on prenatal development and draws attention to regional variations in health risks.
Researchers found that young African fish raised in cloudy water developed larger eye structures than those raised in clear water. As the fish age, they lose this ability to adapt. The study also showed that older fish have bigger brains and optic lobes, suggesting different sensory demands at various stages of life.
International agreements like Sustainable Development Goals represent wide support for a sustainable future. However, disagreements on how to achieve this lead to marginalization and inaction. Researchers found that competing approaches prioritize different values of nature, making compromise difficult.
A study of 25,000 NBA matches found that home teams from the Western Time Zone Area have a near 10% better win ratio when playing against Eastern Teams. The researchers suggest that elite basketball coaches and teams should consider the physical and mental effects of time zone travel on game planning.
A recent study by an international group found that forests with higher trait diversity adapt better to climate change and thrive. Higher productivity levels were maintained in diverse trees compared to monoculture forests.
SMART researchers develop a nanosensor that selectively detects salicylic acid in live plants, vital for stress response. The sensor combines sensors for H₂O₂ and salicylic acid, enabling simultaneous monitoring of plant hormones and aiding in early diagnoses to improve crop resilience.
Ancient marine plankton communities showed subtle changes before major extinctions, serving as an early warning system for future ocean life loss. These findings offer new insight into how biodiversity responds to global warming and its relevance to worst-case scenarios.
A new study reveals that ocean acidification changes the mix of microbes in coral reef systems, which can be used as an early indicator of ecosystem stress. The research suggests a novel measurement approach by analyzing microbial communities alongside larger organisms.
Researchers at Duke University used nanoscale visualization techniques to study corrosion in electrolyzers used to produce green hydrogen. The study reveals that rare metal catalysts break down quickly due to acidic environments, but also identifies potential strategies to minimize these defects and extend the devices' lifetimes.
Researchers found that human-made noise reduces whales' ability to hear acoustic communication, generates an avoidance response, and lowers detection of environmental cues. This can lead to increased journey time or failure to arrive at destinations.
A new dataset has been released that combines molecular information about the poplar tree microbiome with ecosystem-level processes. The dataset provides detailed information on 27 genetically distinct variants of Populus trichocarpa, a bioenergy crop, and includes data on gene expression, soil chemistry, and microbial diversity.
Researchers reconstructed a Late Holocene-aged subfossil coral death assemblage and compared it to modern reefs in Southeast Florida. The study reveals significant differences in coral composition between the two periods, suggesting that modern reefs may not be able to support range expansions of temperature-sensitive species.
A new study found that people with high genetic stress sensitivity are more likely to experience heart attacks during stressful periods, such as holidays and elections. Those who also have anxiety or depression are at even higher risk, with their likelihood tripled.
A new study reveals a strong pattern of decline among moths of all sizes and life stages from rural to urban areas in Florida. Larger macromoths fared worse than smaller ones, likely due to increased metabolic stress in high temperatures.
Researchers from Tokyo University of Science found that rose essential oil increases the transcript levels of PIR1 and PIN2, key plant defense genes, in tomato plants. The study also showed that REO reduces leaf damage caused by pests and attracts beneficial predators to protect against herbivores.
Adolescents with high adverse childhood experiences showed improved mental health scores with in-person schooling and engaging in healthy behaviors. Positive affect and lower perceived stress were significantly higher among those with in-person schooling, suggesting a protective factor.
A new hypothesis suggests that chronic inflammation is spreading among people at unprecedented rates, affecting cognitive ability to address critical issues. The authors propose a mechanism where the brain creates its own copy of bodily inflammation, leading to impaired cognition, emotion, and behavior.
Soil microbes were analyzed near the Centralia mine fire, revealing new insights into how bacterial communities respond to intense environmental change. The team found that species that were active or dormant changed after the fire, but some populations recovered with new bacteria being blown in by wind.
Research found that introduced ribwort plantain populations have higher concentrations of chemical defense compounds than native populations, despite showing slightly greater feeding damage. Climatic conditions also play a role in the accumulation of volatile compounds and the plants' ability to cope with environmental stresses.
Research by Max Planck Institute for Evolutionary Anthropology and Duke University found that early life adversity, such as drought and poor habitat quality, can leave lasting signatures in baboon DNA. Multiple exposures to early adversity appear to have compounding effects on DNA methylation.
A recent study found that semi-aquatic anole lizards can experience a 6°C drop in body temperature while diving, with males conserving heat to minimize muscle recovery time. Females prioritize safety over physiological costs, taking longer dives to avoid predators.