Articles tagged with Shrubs
Researchers use tree rings and satellites to date changes beavers make to the tundra landscape as they spread northwards. The study provides evidence of beaver colonization in the region starting in 2008, with satellite analysis revealing a significant expansion of surface water between 2015 and 2019.
Climate change alters high-elevation meadows, causing plant communities to shift towards shrub-dominated landscapes. The changes also affect the soil ecosystem, with declines in mycorrhizal fungi and increases in decomposers.
A global research effort by Colorado State University reveals that extreme, prolonged droughts in grasslands and shrublands result in more than twice the loss of plant productivity compared to moderate droughts. The study suggests that these ecosystems lose their ability to recover over time under prolonged dry conditions.
A comprehensive study examines the effects of shrub fringe management on biodiversity, revealing that open and semi-open edges with high habitat quality support the highest species richness. Landowners are advised to provide sufficient space for these habitats to protect rare and endangered species.
A recent WSSA research article reveals that focusing solely on deer or invasive shrubs yields little forest health improvement. Instead, managing both threats is necessary to promote tree regeneration and plant community restoration, according to a study spanning over 10 years in Ohio.
A new species of manzanita has been discovered on the central coast of California, but its survival is already at risk due to urban development. The species, Arctostaphylos nipumu, lacks a protective burl that allows some other manzanitas to resprout after wildfires.
A CABI-led study uses publicly-shared DNA barcodes and citizen science images to detect the establishment of a biological control agent used to tackle Lantana camara. The research found two genetically distinguishable populations of Orphanostigma haemorrhoidalis, one in south-eastern USA and the other widespread in Neotropics.
New research from Washington University in St. Louis found that pawpaw patches reduce herbaceous plant species diversity and total understory community size, creating a habitat where the rules of competition are more random. The presence of pawpaws also makes it challenging for land managers to encourage the growth of understory species.
A 13,000-year history of vegetation and fire in Albany Pine Bush reveals pine-oak forest dominance with frequent fires. Pollen and charcoal samples indicate moister climates in recent millennia.
A study found a strong link between woody cover and large wildfire occurrence in the eastern US, with a 37% increase in woody vegetation over the last 30 years. In some regions, such as eastern Texas and the Appalachian Mountains, each 1% increase in woody cover led to a 3.9% increase in wildfire risk.
A study by University of California - Davis researchers found that well-timed tree planting can boost forest recovery by up to 200% in hotter, drier areas. However, competition from shrubs can hinder this process, and the outcome depends on climate, soil, and vegetation conditions.
A study published in the Journal of Applied Ecology found that diverse landscapes with good connectivity between quarries and calcareous grasslands support wild bees. Large, old, and flower-rich quarries are particularly valuable habitats for endangered species.
Researchers have successfully established new sacred fir forests on a nearby volcano to serve as overwintering sites for monarch butterflies, which are projected to disappear from their current habitats due to global warming.
Climate change could be disrupting symbiotic relationships between insects and plants, with urban areas showing less herbivory despite lacking protective ants. The study found that urban plants were not decimated without their normal protector ants, suggesting alternative defense mechanisms.
Research led by Penn State scientists found that indigenous hunter-gatherer practices played a key role in seed dispersal and genetic diversity of native plants. The study challenged the conventional notion of agriculture and suggested humans impacted plant populations long before farming began.
Researchers from University of Utah introduced Simulating Travel Rates in Diverse Environments (STRIDE) model to predict walking travel times with unprecedented accuracy. The model considers slope steepness, vegetation density, and ground surface roughness for efficient routes.
The UofL Green Heart Louisville Project found that residents living in neighborhoods with more trees showed lower levels of general inflammation, a risk indicator for heart disease. The study showed a 13-20% reduction in inflammation, corresponding to a nearly 10-15% reduced risk of heart attacks and certain cancers.
Researchers have identified the unique nutritional profile of Canadian sea buckthorn berries, which are rich in polyphenols with potential health benefits for cardiovascular protection and anti-inflammatory properties. The study found that geographical factors influence the polyphenolic profile of the berries, making them a promising s...
A new study reveals that the protective effect of income has largely eroded in affluent neighborhoods over the past 40 years. This means that even if residents have more wealth, they won't be able to enjoy cooler temperatures as climate change worsens.
Researchers have discovered a unique mechanism by which the desert shrub Tamarix aphylla captures moisture from the air, allowing it to thrive in arid environments. The plant excretes salts to extract and condense water onto its leaves, which can then be absorbed.
A new study published in Conservation Physiology identifies the critical limits of plant function under stress, enabling more effective conservation strategies. By understanding these limits, conservationists can identify vulnerable species and allocate resources more wisely.
Researchers found that witch hazel species with heavier seeds can fling them just as fast as lighter ones due to their spring-loaded fruits. The plants' unique mechanism involves the seed capsule drying out and deforming, releasing elastic energy to propel the seed forward.
A study by Cambridge University Press reveals that no-spray buffer zones of 30 meters near riparian areas are critical in protecting waterways from herbicide run-off. The research also found that forest litter retains most of the herbicide mixture, rather than soil.
Research found trees and shrubs respond differently to warming, with trees advancing and shrubs delaying their growth due to increased sensitivity to chilling accumulation. This phenological mismatch confers a competitive advantage to trees, potentially driving upward treeline shifts.
A new paper analyzes the olive shrub Phillyrea angustifolia's mating system using Kuhn's paradigm shift framework. The discovery of diallelic self-incompatibility resolves a long-standing paradox, demonstrating how science can undergo significant changes in response to emerging data.
A new study led by University of Florida forest management researcher Victoria Donovan found that as woody plants like shrubs and trees replace herbaceous plants like grasses, spot fires can occur farther away from the original fire perimeter. This 'woody encroachment' increases the risk of structural damage and firefighter safety.
A study found that savanna species in Cerrado biome produce significantly more bark than forest species to protect against frequent fires. This adaptation enables them to survive and regenerate after burning, highlighting the importance of controlled fire management in these ecosystems.
A study found that urbanization favors winged insects over web-builders, with flies and spiders increasing in urban areas while web-building spiders decrease. This suggests an advantage of winged arthropods in cities due to their ability to move between isolated green spaces.
Scientists discover new Australian bush tomato species, Solanum scalarium, to promote equal and safe access to nature. The study emphasizes the importance of addressing environmental injustices and increasing participation from diverse groups in outdoor activities.
New research reveals mangroves can withstand heavy metal contamination without adverse health impacts. Grey mangroves were found to tolerate high lead and zinc levels in contaminated sediment, highlighting their role in stabilising polluted regions.
A new study has identified 195 previously unknown nectar plants for the painted lady butterfly, providing a source of food in Southern California. The research suggests that droughts may impact the butterflies' ability to reproduce, but the discovery of these nectar plants offers hope for their survival.
Researchers found that arctic shrub growth is limited by seed dispersal and fire, not just environmental suitability. The study used high-resolution satellite imagery to estimate shrub expansion in the Arctic region, revealing a discrepancy with previous models.
Researchers have discovered 'proto-peat', a thin layer of organic matter containing high levels of carbon, in the Arctic. This finding suggests new carbon sinks may be forming as the region warms up.
A new study finds that large wild animals like elephants and whales can help restore ecosystems and battle climate change by dispersing seeds, clearing vegetation, and increasing albedo. Protecting these animals also supports local biodiversity and ecological resilience in temperate, tropical, and subtropical grassland ecosystems.
Rising temperatures are causing the world's coldest forests to shift northward, threatening biodiversity and increasing wildfire risks. Soil nutrient availability also plays a key role in the response of boreal vegetation to climate change.
A new study reveals that global warming has suppressed shrub recruitment in the Arctic and Tibetan Plateau, indicating a tipping point for cold biomes. The research found that optimal climate conditions for shrub growth have already passed in these regions.
A comprehensive diagnostic guide for Volutella blight has been published by the American Phytopathological Society. The guide provides a detailed review of the three fungal pathogens causing Volutella blight and compares its diagnostic traits with other boxwood fungal diseases.
In a new study, desert shrubs in the Southwest have increased their water use efficiency at unprecedented rates to survive a decades-long megadrought. The study found that despite this heroic increase, shrubs may not be adapting quickly enough to long-term drying trends in the West.
A study found that fires in the Amazon's wettest areas destroy small and medium-sized trees, leading to a loss of biomass and carbon stocks. The destruction can last for decades, with saplings and bushes being among the first to die.
Researchers at Oak Ridge National Laboratory are advancing various technologies to minimize oil leaks, enable 3D printing in space, and increase fuel efficiency from ethanol. They have developed a quantum sensing system to detect pipeline leaks more quickly, built a thermal protection shield for a capsule launched into space, and creat...
A new study from Aalto University suggests that green infrastructure can play a significant role in reducing urban carbon footprints. The research identified key considerations for creating standards for products used in green spaces, with the aim of helping cities reach carbon neutrality.
Rein Ulijn, a CUNY professor, receives the Vannevar Bush Faculty Fellowship to study complex mixtures of molecules and develop new biomimetic materials with diverse applications in biomedicine and green technology. The fellowship supports his research on repurposing nature's molecules to design novel functions.
A chemist at Purdue University has found a way to synthesize a compound that can fight a previously 'undruggable' cancer protein with benefits across various cancer types. The compound, curcusone D, was discovered in a shrub native to North America and has shown potent anti-cancer activity against breast cancer cells.
MIT researchers developed a publicly available model to estimate COVID-19 transmission risks in indoor settings, considering variables like people number, space size, activity type, mask wearing, and ventilation rates. The model provides a detailed guideline for policymakers, businesses, schools, and individuals to gauge their own risks.
Researchers have grown shrub willow on a semi-commercial scale to better understand its nuances as a bioenergy crop. Key findings include determining the best varieties to plant and how to handle planting and harvesting. The study also highlights the crop's ability to store carbon, host pollinators, and provide ecosystem services.
Scientists analyzed ancient lake sediment in the Arctic Ocean and found evidence of a shrub native to northern Canadian ecosystems that was once widespread. The findings may provide insight into the potential future of the Arctic's vegetation as it warms due to climate change, with implications for thawing permafrost and sea level rise.
A study on rehabilitating an old mine waste rock pile found that a new technique can successfully restore vegetation and reduce toxicity risks. The technique involves classifying and managing excavation waste based on its geochemical properties to prevent acid drainage and contamination.
Researchers found that antlion larvae can remain motionless for up to 61 minutes by 'playing dead', confusing predators and encouraging them to search elsewhere. This clever tactic allows the larvae to stay alive in an arms race with their predators.
A novel approach by a West Virginia University researcher aims to gauge restoration success in wetlands. By measuring shrubs at ground level, he advances the criteria for assessing long-term restoration potential, providing a better indication of success.
Researchers found that shrubs impact tundra soil microclimate, reducing moisture, temperature, and organic carbon stocks. This affects the global carbon cycle, as Arctic soils store significant amounts of belowground organic carbon.
A 15-year experiment on Arctic shrubs in Greenland sheds light on species diversity and co-occurrence versus exclusion, with important implications for carbon sequestration. The study reveals trends related to carbon exchange as the Arctic becomes greener and browner due to climate change.
A study analyzing Arctic tundra shrub-ring chronologies from 1979 to 2008 found that most shrubs experienced increased radial growth as Arctic sea ice declined. However, 39% of shrubs showed decreased growth, often at drier sites, suggesting changes in moisture availability constrain responses to warming temperatures.
A University of Maine-led research team studied hundreds of North American tree species and found that only 50% of their potential climatic habitats are actually inhabited. This suggests that trees may struggle to keep pace with climate change, highlighting the need for more sophisticated predictive tools for conservation.
The Amazonian rainforest is racing toward a tipping point as unregulated fires and climate change accelerate deforestation and habitat destruction. If temperatures rise by another 2-3 degrees Fahrenheit, the ecosystem could transition to savanna within decades.
Researchers used satellite imagery to detect non-native Amur honeysuckle in urban parks and cemeteries, achieving 82% accuracy. The method provides a cost-effective solution for ecological restoration, allowing for targeted removal of invasive species.
A region-wide study by Penn State researchers confirms that invasive shrubs have an advantage over native shrubs, contributing to their proliferation. The study found that invasive shrubs maintain leaves for 77 days longer than native shrubs, giving them a competitive edge in acquiring energy and creating shade.
Researchers analyzed intrinsic water-use efficiencies in two populations of the drought-deciduous shrub Encelia farinosa. The study found that individual shrubs exhibit significant plasticity in response to climate change, rather than population-level adaptation.
Research in the Mojave Desert shows that the brittlebush shrub has adapted to increased temperature and aridity by increasing its water use efficiency. Over a 39-year study period, the shrubs' ability to open their stomata was linked to changes in carbon isotopes, revealing a remarkable adjustment to the changing climate.
A team of researchers from Utah State University and the California Department of Food and Agriculture investigated the evolution of Thistle-down velvet ants' white coloration. They found that the wasps' pale coloring provides thermoecological benefits in their hot desert environment, rather than serving as camouflage to avoid predators.
Researchers found that plants on Svalbard grow in synchrony due to July temperatures, reflecting climate change. Tiny growth rings of the polar willow shrub show distinct patterns, allowing scientists to track growth and understand ecosystem dynamics.