Articles tagged with Invasive Species
Researchers found that reduced fire severity due to drought creates an environment conducive to invasive species, particularly non-native grasses. This transformation leads to a decline in native species abundance and diversity. The study advocates for strategies considering wildfire frequency and invasive species control post-fire.
Researchers found that Aedes aegypti mosquitoes' thermal tolerance and biological traits can shift in response to temperature, leading to variation in disease transmission. This study challenges traditional models by highlighting the importance of local adaptation in predicting mosquito-borne disease risk under climate change.
Researchers found three oak species have become invasive along riverbanks and urban-wildland interfaces in Stellenbosch and Cape Town, threatening century-old oaks. The polyphagous shot hole borer disease is also affecting widespread species like English oak.
A recent study published in Invasive Plant Science and Management identifies the most likely invasive plants to expand into the Mid-Atlantic and Northeastern US states by 2050. These high-impact species are associated with negative impacts on ecological communities and socio-economic effects.
The study reveals that non-native earthworms have colonized 97% of soils across North America, with alien occupation higher in the northern part of the continent. This poses a threat to native ecosystems, including forests and grasslands, and highlights the need for better understanding and management of these invaders.
A new study published in Science found that eradicating non-native animals to protect plant species can be a flawed practice, costing millions and slaughtering healthy wild animals. The research compared the effects of native and introduced large herbivores on plant communities, finding no significant differences.
Research finds invasive trout compete with native white-spotted charr for aquatic prey. Brown trout also influence ecosystems by preying on terrestrial organisms, further harming native populations.
Research in Kenya's Ol Pejeta Conservancy reveals invasive big-headed ants have reduced lions' effectiveness at killing zebras. Lions now primarily target African buffalo instead, maintaining population stability.
Chinese researchers investigated the causes and consequences of biological invasions, tackling questions on genetics, nutrient pollution, and online trade. The 24 articles highlight valuable insights into future biological invasion research coming out of China.
The study observed that invasive Bluegill in Lake Nojiri, Japan, displayed unique colony spawning behaviors, with males constructing nests in close proximity to each other. Removal of guarding males revealed four brood predator species, with conspecific Bluegill constituting over 90% of all predators.
Researchers at Okayama University uncovered key reproductive characteristics of the red-swamp crayfish, highlighting the importance of hook length and chelae for identifying sexual status. The study also found high reproductive ability and fast growth rates compared to native Japanese crayfish.
Research reveals that European insects outnumbers non-native species in North America, Australia, and New Zealand despite reduced international trade patterns. Introduced plants may have promoted the spread of European insects by providing food and habitat for subsequent arrivals.
A new study reveals that humans have driven the extinction of 1,430 bird species, with many becoming extinct before written records. The research suggests that major human-driven extinctions occurred in the 14th century and ninth century BC, with ongoing threats including climate change and invasive species.
A team of experts led by Deah Lieurance evaluated 460 species and ranked them according to their likelihood of invasion and potential ecological, economical, and human health impacts. The top 40 species pose the greatest threat to Florida's natural areas, with some, like the crab-eating macaque, already established in the state.
Researchers discovered a single bacterium transferred genetic material to mussels, enabling their ability to make durable fibers. These fibers, similar to spider silk, could inspire the development of tough polymer fibers for more sustainable materials.
A research paper reveals a suburban backyard is home to 1,150 unique species of animals, plants, and fungi. The study's authors discovered unexpected diversity, including 436 moth and butterfly species, 56 spiders, and eight reptiles.
A long-term study found that increased phosphorus availability and salinity are key drivers of change in the lagoon, favoring invasive green macroalga Caulerpa over native seagrass. Reducing wastewater infrastructure and stormwater runoff can help promote seagrass recovery.
Anopheles stephensi, a malaria-carrying mosquito, has been found to exploit construction sites and brick-making facilities in Jigjiga, Ethiopia, during the dry season. Targeted control measures, such as stocking construction pits with larvae-eating fish, may help mitigate malarial outbreaks in the city.
Researchers used AI to analyze tree databases and found that temperature and precipitation are strong predictors of non-native species invasion. The study also reveals that global forest carbon potential is considerably below natural levels, with most potential located in existing forests.
Researchers urge concerted action to mitigate global warming's impact on polar ecosystems, which are both the most-threatened and least-understood areas. The study aims to map all biodiversity in these regions to sustainably manage unique habitats and their ecosystem services.
Researchers observed Canada goose flocks before and after a population-management cull, finding that the birds strengthened existing relationships rather than forming new connections. This social conservatism helps reduce the potential for increased disease transmission.
A study of European river systems from 1969-2020 found that freshwater biodiversity improved until the 2000s but stagnated since then. The researchers attribute this decline to diminishing effectiveness of existing measures and emergence of new pollutants, climate change, and invasive species.
Frogs from the genus Eleutherodactylus are geologically the oldest Caribbean vertebrates to be found in Florida. They arrived in North America much earlier than previously thought, with evidence suggesting they reached the peninsula through overwater dispersal on flotsam or other buoyant debris.
Asian longhorned ticks, originating from East Asia, have been detected in Ohio, with over 1 million estimated in a single pasture. Researchers stress the need for early detection and targeted control measures to manage these persistent pests.
Research reveals that most types of sea freight carry soil with live bacteria, fungi, worms, seeds, and insects, including regulated biosecurity organisms. The study highlights the need for efficient measures to prevent exotic species establishment through contaminated cargo.
A new study reveals that bumblebees can effectively fend off Asian hornets by dropping to the ground, a strategy that has not been observed in other pollinators. However, despite this successful defense mechanism, bumblebee colonies still experience reduced growth rates in areas with high numbers of Asian hornets.
A new study found that creating physical gaps in the forest canopy improves the health and growth of eastern hemlocks infested with the woolly adelgid, a highly invasive insect. By giving the trees better access to resources like water and nutrients, canopy gaps may help them 'outgrow' the insect's impact, at least temporarily.
Researchers detected genetic diversity and population structure of invasive round goby fish using environmental DNA (eDNA) sampling. This technique helps trace the source of new invasive populations and prevent further invasion, enabling natural resource managers to take targeted action.
Research finds that water movement between lakes can transport environmental DNA, making eDNA a promising tool for tracking aquatic species and monitoring biodiversity. The study highlights the importance of considering landscape connectivity when designing eDNA surveys to ensure accurate biodiversity assessments.
Researchers confirm invasive red fire ant species Solenopsis invicta has established itself in Sicily, with potential to spread across Europe due to climate change. Urban areas are particularly at risk, and the team plans a multi-year treatment plan to eradicate nests and monitor the ants' spread.
A study has confirmed the establishment of red fire ant in Europe, with a high risk of spread due to climate change. The invasive species could impact urban areas, causing significant economic losses and posing a threat to human health.
Researchers found a 5% sodium hydroxide solution successfully turns live Lebbeck mealybug specimens green, identical to the 10% potassium hydroxide solution. The new alternative is less corrosive, more water soluble and less expensive.
A new R package, lydemapr, has been developed to track the spread of the invasive Spotted Lanternfly in the US. The dataset contains detailed information on the pest's presence, establishment status, and population density across over 650,000 observations.
A study led by University College London researchers analyzed 393 wasp samples collected from citizen scientists and found a single population of the Common Wasp (Vespula vulgaris) across Britain. The findings demonstrate the wasp's ability to disperse itself widely, contributing to its success in human-modified environments.
Scientists successfully removed invasive spectacled caimans from specific areas of the Everglades, reducing competition with native alligators and crocodiles. The efforts demonstrate early detection, rapid response, and persistent removal can effectively control invasive species, with implications for other invasive species management.
A new study by Flinders University researchers suggests that only 1% of dormant pathogens could cause major ecological harm, leading to the loss of host organisms worldwide. The simulations showed that these ancient microbes can survive, evolve, and become dominant in modern ecosystems, posing a substantial danger.
A recent study by Dr. Monica Mowery at Ben-Gurion University of the Negev found that urban habitats provide a safe haven for invasive brown widow spiders, protecting them from parasitism and predation. This allows the species to thrive in high densities, contrary to what is observed in natural desert habitats.
A study found that Japanese beetles are likely to thrive in southeastern Washington and could spread throughout the region from Yakima to the Tri-Cities and north past Moses Lake. The beetles' potential dispersion is influenced by factors such as human activity and suitable habitat.
A new study published in Pest Management Science reveals that an apple snail invasion could be disastrous for rice production and food security in Kenya. The invasive species reduces rice yields by up to 14% and net rice income by up to 60% for farmers experiencing moderate levels of infestation.
A recent study led by McGill University estimates that the European Union will face significant economic losses due to biological invasions, with costs projected to reach over €142.73 billion by 2040. The study highlights the need for effective management and collaboration to address this threat.
A new study conducted by CABI scientists reveals that cut stump and basal bark herbicide application, as well as manual uprooting, were highly effective in killing the invasive tree, with success rates of 85-100%. Restoration interventions also showed promise, particularly those involving divots, mulching, and grass seed sowing.
A new study uses marine fossils to infer the health and stability of coastal ecosystems, revealing consistent patterns in population declines and species extinctions. The findings provide a reliable benchmark for conservation efforts and offer insights into the impacts of human activities on marine biodiversity.
Researchers at Flinders University use machine learning to identify species interactions and predict which species are most likely to go extinct. By analyzing species traits and interactions, the algorithm can help plan interventions before extinctions occur.
The study found Asian clams in various habitats along the lower Columbia River, with high concentrations near warmer waters and sandy substrates. The invasive species can disrupt food webs and cause economic damage, raising concerns about potential future invasions by quagga and zebra mussels.
A new study by CABI reveals that invasive non-native species (INNS) in the UK cause an estimated £4bn in economic losses each year. The study found that fungi are the costliest group, accounting for 52.9% of total costs.
A new study quantified the economic costs of biological invasions in the European Union, revealing substantial knowledge gaps and alarming underestimations. The research projected unreported costs to be potentially 501% higher than currently recorded, reaching a staggering €26.64 billion.
A new biodiversity study shows that even seemingly healthy ecosystems with increasing species numbers may already be on the path to decline and loss of species. The study's findings suggest that species richness is not a reliable metric for monitoring ecosystems, as it can mask negative trends in species extinction.
Researchers at the University of Gothenburg have discovered twenty species of sea lettuce in the Baltic Sea region, including three invasive species. The survey highlights the importance of knowing which species grow in specific areas to maintain and protect valuable ecosystems.
A new study by CABI confirms the Samurai wasp has minimal impact on native stink bugs, with most non-target species being less parasitized. However, some species with unusual life cycles may face increased risk of parasitism. The study assessed the realized host range of the Samurai wasp and found it to be broader than initially thought.
A citizen science project in Italy involved 500 Italian students in trapping and identifying ambrosia beetles, resulting in new geographical records for two quarantine pest species. The students gained a greater understanding of the negative effects of invasive alien species and increased awareness of biological invasions.
Research reveals that prescribed burns create favorable conditions for stinknet to spread, outcompeting native plants and reducing soil health. Targeted treatments after burns can help mitigate this issue.
Researchers used deep learning to analyze drone images of pine trees, detecting pine processionary moth larvae nests with high accuracy. The method can be applied in various settings to inform tree health managers about potential threats.
A new study from the University of Georgia found that Joro spiders, despite their intimidating appearance, are gentle giants, mean no harm to people or pets. They remain immobile for over an hour after a disturbance, unlike other spider species that resume normal activities within a minute and a half.
A recent study on buffelgrass control in Arizona's Saguaro National Park highlights the importance of long-term monitoring and surveillance. Low levels of buffelgrass can quickly expand by multiple orders of magnitude, emphasizing the need for sustained efforts to manage its spread.
A new study reveals a progressive spread of invasive American mink across most European countries over the past decade. The species is now widespread in Northern and Western Europe, but data are lacking for Eastern and South-Eastern Europe.
Researchers have sequenced the genomes of two hornet species, revealing clues to their invasive success. The study found rapid genome evolution and genes related to communication and smell, which may help explain why hornets are successful as invasive species across the globe.
The global economic impact of biological invasions exceeds that of natural catastrophes, with $1208 billion in losses between 1980 and 2019. Biological invasions have a long-lasting effect, causing significant damage to infrastructure, crops, and ecosystems.
Researchers discovered that ambrosia beetles Xylosandrus germanus use the volatile compounds of their fungal symbionts to aggregate and potentially kill trees. This finding suggests a new method for biological control by targeting specific beetle species with trapping lures based on these compounds.
Researchers at UToledo developed a new model to estimate the abundance of rare species like invasive grass carp in freshwater ecosystems. The model helps guide management strategies and provides insight into the effectiveness of control efforts.
A recent study published in Journal of Animal Ecology has identified disease avoidance strategies in various animal species, including humans. The research provides insights into how emotions like disgust help protect against diseases and has implications for human health and conservation efforts.