Articles tagged with Seasonal Changes
A University of Arizona-led study found that drought and seasonal fluctuations in rainfall are larger drivers of evolutionary diversity than warm temperatures. The research team created maps of evolutionary diversity across North, Central and South America, revealing that deserts have more plant species compared to forests due to drought.
Researchers found that bumblebee flight performance rises rapidly from 12°C and peaks between 25-27°C, but declines beyond this. This study suggests that climate warming may benefit some northern-latitude bee species, but poses risks to southern-latitude populations due to more frequent extreme weather events.
A study analyzing 7,000 tree falls in São Paulo City found that most occurrences occur in the rainy season due to weather conditions. However, a significant number of trees fell during the dry season, attributed to poor management and inadequate conditions for street vegetation.
Research in the southern Murray-Darling Basin has found a downward spiral in water availability, driven by accelerated changes in climate. Since the 1990s, cool season rainfall and river heights have significantly decreased due to increased evaporation and changed precipitation patterns.
A new study by the University of Sussex reveals that natural selection leads to fluctuations in nectar supply and demand due to changes in pollinator populations. When pollinators are scarce, flowers produce more nectar to outcompete others, but when they're abundant, less nectar is needed.
A synthesis of scientific literature provides a unified resource for managing western forests and addressing the impacts of climate change on wildfires. The report recommends approaches such as thinning dense forests, prescribed burning, and revitalizing Indigenous fire stewardship practices to make landscapes more resilient.
A new study found that young soccer players experience more frequent head impacts during practice, while game time may result in greater magnitude impacts. Technical training activities like heading the ball were associated with an average impact rate of 13.7 head impacts per player hour.
A study by Max Planck Institute researchers found that bacteria on sand grains in the North Sea and Arctic remain consistent throughout seasons. The community's stability suggests a lack of available space for new inhabitants.
Researchers from Tokyo Metropolitan University analyzed long-term satellite data to find a significant increase in rainfall over the past decade during the annual Meiyu-Baiu rainy season. The increased rainfall is driven by tropical moisture transport and upper tropospheric troughs, which are strongly correlated with enhanced rainfall.
Cases of flu and respiratory syncytial virus (RSV) plummeted during the COVID-19 pandemic due to social distancing, school closures, and mask use. The study suggests that infection with COVID-19 may have provided protection against other respiratory viruses through viral interference.
Researchers from the University of Adelaide have developed strategies to delay grape ripening and increase flavor potential in Cabernet Sauvignon grapes. By manipulating crop load and irrigation management, they were able to slow down sugar accumulation and improve aroma compounds, colour, and mouthfeel.
Researchers found that wildfire smoke affects the ability to observe more than a third of common bird species in Washington state. Higher concentrations of fine particulate matter, or PM2.5, were associated with harder-to-observe bird species, while some species became easier to detect when smoke was present.
A Mount Sinai study reveals rotator cuff injuries are the most common type, accounting for nearly half of all shoulder injuries. The research also identifies other risk factors, including pitching and throwing, and highlights the need for improved injury prevention strategies.
A new algorithm developed at Caltech allows autonomous systems to recognize their location by analyzing the terrain around them, even in seasonal changes. The system uses self-supervised learning to identify patterns in images, resulting in more accurate localization, with 92% success rate compared to 50% with traditional techniques.
Researchers linked repeated head impacts in youth football with changes in brain imaging, highlighting the need for reduced head impact drills during practice. The study used diffusion tensor imaging and biomechanical data from helmet-mounted sensors to examine the effects of head impacts on young athletes.
A longitudinal study found that youth football players experience a significant positive association between changes in head impact exposure and abnormal findings on brain imaging studies. The researchers also discovered that variations in head impact exposure metrics differed from year to year and between athletes.
A study analyzing 7,263 English Premier League goals found that random influence is present in almost every second goal (46%). Weaker teams and draw situations see a higher proportion of chance goals, with the occurrence dependent on match situation.
A new study found that climate warming will increase carbon loss in Canadian peatland by 103 per cent due to changes in soil temperature and photosynthesis. This will lead to a strong positive climate feedback loop, where peatlands release greenhouse gases contributing to further climate warming.
Climate change and human activities are causing reproductive success to decline in fish-eating seabirds in the Northern Hemisphere. Seabird diets played a major role in their ability to rear chicks, with deep-diving birds like puffins faring best in terms of reproductive success.
The study reveals that the 2019-20 drought was caused by a meteorological phenomenon, atmospheric blocking, which prevented raincloud formation. The Pantanal's severe drought had devastating effects on the biome due to high temperatures, low humidity, and exacerbated by human activities like deliberate burning of vegetation.
High-elevation fires in the western US have advanced upslope by 252 meters since 1984, fueled by climate change and increased lightning strikes. This expansion threatens previously wet areas and exacerbates fire risks in dry regions.
A new smartphone app developed by Cornell University engineers can predict grape yields up to 24% more accurately than traditional methods. The app uses computer-vision technology to analyze video footage of grape vines, allowing farmers to secure labor and equipment in advance and reduce profits.
Research finds herbivores weaken early emergers in California grass species, offsetting advantage of early germination. This discovery highlights the role of herbivory in shaping natural selection and evolutionary responses to global environmental changes.
Researchers from McGill University studied threespine stickleback fish adapting to seasonal changes, finding genetic shifts that mirror past adaptations. The study's findings suggest predicting evolutionary future of populations under environmental stressors like climate change.
Lemon trees showed a lower molecular response to the citrus greening disease pathogen Liberibacter asiaticus compared to orange trees. This may be due to accumulated micronutrients and upregulated protease inhibitors in lemons, which hinder photosynthesis. The study's findings could aid in developing resistant citrus varieties.
Two new studies show that whale-watching vessels frequently disregard legal guidelines, chasing whales, getting too close to calves, and forcing changes in behavior. Researchers also found that tourist boats surround a single mother and calf, highlighting the need for better conservation efforts.
Researchers at the University of Tsukuba tested the new Flight 2020 Soccer Ball, finding it more stable than previous versions but with reduced flight range. The team attributed this tradeoff to increased surface roughness, which may improve the design of future sports equipment.
A recent review analyzed over 2,000 species in the Alps, finding that many have shifted their life cycles earlier and are moving higher up the elevational gradient as climate change intensifies. This shift is often lagging behind the rate of climate change, with some species experiencing little or no elevation change.
A new tool has been developed to create optimized, healthy diets tailored to individual needs and environmental impact. The tool considers factors such as location, season, sex, dietary supplements, and diet type to provide personalized recommendations.
A University of Maine-led study has uncovered new information about millennia of sea ice variability in the Southern Hemisphere by examining the chemistry of a 54,000-year-old South Pole ice core. The research reveals significant fluctuations in wintertime sea ice and an overall increase in ice cover throughout the Holocene.
A University of Maine study found that Down East wild blueberry fields are warming at a rate 1.2 degrees Celsius faster than the rest of the state over the past 40 years. This rapid warming is expected to increase evapotranspiration, threatening water supplies and crop health.
Researchers at Stanford University used a new approach to analyze radar data to show that extreme melt events can create persistent structural changes in the ice sheet, reducing its ability to store meltwater. This change can lead to slippery conditions on the ice bed and speed up the ice sheet's melting.
A new study by the University of California San Diego found that Airbnb hosts in college towns increase their listing prices during home football games against rival teams, resulting in a 78% reduction in rental income. This phenomenon is attributed to strong emotions involved in college football rivalries and financial constraints.
A new study reveals a strong correlation between changes in Taiwan's seismicity rate and its seasonal water cycle fluctuations. Shallow earthquakes in eastern Taiwan show an opposite correlation, with peak seismicity rates occurring in either winter or summer.
The study predicts stronger and more erratic monsoon rainfall in India, with potentially grave consequences for the country's agriculture, economy, and food systems. Climate change is also causing more unpredictable weather extremes, posing a threat to the socio-economic well-being of the Indian subcontinent.
A new study from the Journal of Near Eastern Studies presents evidence of Roman-era emerald mining in Wadi Sikait, Egyptian Eastern Desert. The excavation revealed religious artifacts and structures, highlighting the importance of cult spaces in mining settlements.
A study from Cornell University found that women's increased agricultural labor during harvest season leads to decreased nutritional intake. Women who work longer hours on farms experience a loss of up to 112 calories and essential nutrients.
A new analysis of 40 years of data found that winter snowmelt is increasing in all cold season months, affecting water resource planning and management. This shift in water delivery timing could also impact wildfire seasons and agricultural irrigation needs.
A study analyzing pollen data from 1990 to 2020 found that the pollen season has shifted substantially over the past 30 years, with some species starting as early as January. This increase in duration and intensity can lead to more severe health issues, including inflammation in the lungs and negative impacts on the cardiovascular system.
Researchers found that broadcasting murrelet calls increased the odds of recording wild murrelet calls by as much as 15 times. The birds remembered the locations of experimental areas for nearly a year after broadcasts ceased.
Experts identified three hydrodynamics units - Balearic Sea, West Algerian Basin, and Alboran Sea - with minimal fish exchange. The study highlights the importance of connectivity in marine reserve setting.
A recent study published in Food and Energy Security reveals that households in Zimbabwe blighted by the fall armyworm pest are more likely to experience hunger. The research found that severe infestation can reduce household income by 44% and increase the likelihood of food shortage.
Researchers have found that climate change is the primary driver of changes in global river flow, leading to increased risk of flooding and water scarcity. The study used measurements from over 7,250 locations globally to examine the impact of manmade climate change on river flows between 1971 and 2010.
A study by University of Limerick researchers identified strategies used by top Fantasy Premier League competitors, revealing a pathway to success involving long-term planning and optimal player selection. Key players like Aaron Wan-Bissaka emerged as crucial enablers for skilled managers.
Analysis of satellite data reveals that humans have a dominant effect on Earth's water cycle, causing 57% of seasonal variability in freshwater storage. Human-managed reservoirs fluctuate by nearly four times more than natural lakes and ponds, affecting regions with high water stress.
A new study found that Black NBA players have a 30% greater chance of exiting the league than their white counterparts with equivalent performance. The disparity is mainly due to bench players, who are predominantly Black but average less than 20 minutes of court time per game.
Researchers found that certain species of pollen advanced their seasons by up to 2 days per year, while others moved theirs 0.5 days earlier on average, impacting local health and allergy patterns. The study highlights the importance of accounting for pollen transport in understanding climate change's effects on the environment.
A study by German Centre for Integrative Biodiversity Research (iDiv) found that plant species often respond to climate drivers months or even years later than previously assumed. The research analyzed 76 studies on 104 plant species and discovered that climate conditions during dormant seasons can have significant effects on plants.
A recent study published by Mariana Muñoz-Romo found that odor-producing glands are present in male bats, attracting reproductive females. The research also highlights the importance of timing and chemistry in bat mating systems.
Changes in wintering bird communities are significantly faster due to less sedentary behavior and warming temperatures, while breeding community changes are slower. The study tracked over 1,200 species since the 1980s, with rapid shifts towards southern species in Europe and North America.
Researchers found that climate change contributes to longer and more severe pollen seasons in the US, affecting respiratory health and viral infections. Pollen counts increased by 21% between 1990 and 2018, with a significant impact on allergy sufferers.
Researchers have discovered a temporary bright spot in the decline of nitrogen oxides, byproducts of combustion, across the north equatorial part of Africa. The decline is linked to a decrease in dry-season fires managed land practices, as well as increasing population densities and urban emissions.
A new study links the 2019-2020 flu season to a more transmissible strain of Type B influenza virus. Younger individuals were disproportionately affected due to limited exposure to other B viruses, highlighting the need for targeted vaccination and preparedness strategies.
A new study finds that households' ability to glean seafood in rough weather is influenced by shallow habitat area and type. This highlights the importance of context-specific understanding of dynamic coastal livelihoods for sustainable fisheries management.
A study published in JAMA Neurology found that college football players suffer from high frequencies of concussions and repetitive head impacts over several seasons. The researchers identified patterns of injury and highlighted the need for further research to address the long-term effects on player health.
A study of FC Red Bull Salzburg's championship group games found that the absence of supporters led to shorter and less intense emotional behavior among players, staff, and officials. The authors also observed a decrease in foul commits and disciplinary points, with 20% more goals scored in ghost games.
Rugby league's young players can benefit from individualized nutrition plans to improve physical capacity, health, and recovery throughout their careers. The study provides practical food and drink examples for sports dietitians and coaches to help players eat and drink enough as part of a healthy diet.
A new international study suggests that starvation is contributing to the mortality of gray whales along the west coast of Mexico, USA, and Canada. The researchers used drone photogrammetry to measure the body condition of the whales, which showed a marked decline in juvenile and adult gray whales visiting Laguna San Ignacio.
Researchers analyzed tree rings in Alaska to understand the climate's response to the 1783 Laki Volcano eruption. They found that tree growth stopped suddenly after the eruption, suggesting a sudden cooling at the end of the growing season.
Researchers found the error source of a sea-ice model varies with the season, leading to discrepancies between simulations and observations in both cold and warm seasons. The study suggests using an ensemble approach to consider seasonal variations in model errors, improving future simulation and prediction of Arctic sea ice.