Articles tagged with Invasive Species
A study found that 75% of Spanish zoos have insecure animal housing, putting invasive species and the environment at risk. Birds are most likely to escape from these areas, emphasizing the need for improved zoo security measures.
A recent study found that invasive species and over-exploitation of water resources are the biggest threats to fish in the Mediterranean basin. The researchers used data on 232 fish species and their distribution range to show that fish communities are exposed to the greatest threat of extinction when these pressures are present.
Clement Loo, a University of Cincinnati doctoral student, presented his research on invasive species and the Shifting Balance Theory at an international conference. His paper argues that this theory is more nuanced than traditional Fisherian gradual mass selection in understanding the evolution of invasiveness.
A $2.5 million grant from NOAA will support research on invasive species in the Great Lakes, aiming to predict future invasions and develop effective control measures.
Parasites in invasive species can cause significant harm to local invertebrates, fish stocks, and ecosystem services. The discovery challenges previous thinking that parasites-free invaders do well in new locations.
Researchers at NC State University developed a set of guidelines to improve pest-risk mapping, including increasing international collaboration and incorporating climate change. The recommendations aim to increase the accuracy and consistency of pest-risk maps, which inform strategic and tactical management decisions. By addressing unc...
Invasive mosquitofish Gambusia holbrooki will expand northward due to climate change, affecting native species and ecosystems. The study found temperature affects the abundance and reproductive cycle of the species.
Researchers successfully trained northern quolls to associate the taste of toxic cane toads with nausea, allowing them to survive up to five times longer in areas infested with these invasives. This approach could provide a vital new weapon in the fight against invasive species.
Researchers discovered that odorous house ant colonies grow exponentially in urban environments, forming complex networks with millions of workers. This phenomenon raises questions about the impact on native species and potentially informs better pest control strategies.
A recent study found that the Cold War's economic isolation led to a decline in introduced bird species in Eastern Europe, while Western Europe experienced an increase. The research highlights the importance of preventing exotic species importation to prevent ecosystem disruption.
UOG scientists have employed new tactics to combat the coconut rhinoceros beetle (CRB) invasion, including the use of canine teams and a bio-control virus. The efforts aim to drive the population to zero, with the latest strategy targeting breeding sites using trained dogs and destroying debris.
The USGS report highlights five giant non-native snake species that pose high ecological risks to the US, including Burmese pythons, anacondas, and boas. These snakes have been documented reproducing in the wild in South Florida and can attack and kill people, posing a small risk.
A recent study found that only one species of seabird, the European storm petrel, is severely impacted by cohabitation with invasive black rats on Mediterranean islands. The presence of rats has led to a 68% risk of extinction for procellariiforme seabirds.
A team of scientists from the University of Toronto identified a drastic invasion of round goby into many Great Lakes tributaries, including areas known as 'species-at-risk' hot spots. The impact on native fish and mussel species is likely to be serious, with up to 89% of fish species and 17% of mussel species affected.
A US-based research team has assessed potential invasive snail and slug species threatening US agriculture and the environment. The study identifies key pests that could have significant impacts if introduced nationally.
A study found that invasive Atlantic Coast crabs and snails have devastated oyster reefs in Tomales Bay, California, destroying half of the native Olympia oyster population. The invasion has disrupted trophic cascades, causing a loss of critical habitat for marine biodiversity.
A tiny fly, the midge Corethrella appendiculata, eats more of the invasive Asian tiger mosquito larvae than native Eastern treehole mosquito larvae. This allows native mosquitoes to survive despite being outcompeted by the invasive species.
The study highlights the urgent need for a comprehensive approach to manage the invasion of johnsongrass, which threatens the benefits of GMOs in Argentine soybean cultivation. The authors emphasize the importance of considering policy implications beyond deforestation to protect agro-biodiversity.
The Commission for Environmental Cooperation releases guidelines to assess and mitigate the risks of aquatic invasive species, which can cause significant environmental harm and economic losses. The guidelines aim to promote preventive measures and harmonized actions among North American countries.
A study by Ecological Society of America reveals the economic costs of invasive species on Europe's ecosystems. The research lists Canada geese and coypu as top invaders causing widespread damage to crops and forests, with estimated annual losses in the UK at €2.8 billion.
A recent study by Arizona State University's Charles Perrings highlights the substantial economic impact of invasive species on agriculture, fisheries, forestry, and ecosystems. In some countries, such as South Africa and Brazil, invasive species account for up to 112% of agricultural GDP.
Researchers discovered how invasive ants cooperate to form massive supercolonies, allowing them to expand territory and evade native enemies. The study reveals that these traits develop when populations grow and adapt to new habitats.
Researchers at Michigan State University have successfully lured lovesick lampreys to traps using a synthetic chemical version of the pheromones used by males to attract females. The pheromone, called 3kPZS, is potent and only requires tiny concentrations to be effective.
The removal of cats from Macquarie Island, a World Heritage Site, has caused widespread environmental devastation due to the increase in the native rabbit population. The island's vegetation has been severely impacted, with nearly 40% of the area affected and nearly 20% having moderate to severe change.
The First World Conference on Marine Biodiversity has reported a rapid northern migration of invasive marine species, spreading at 50 km per decade. This is significantly faster than terrestrial plants and may be due to the rapid dispersion of macroalgae propagules in the ocean.
A new ecological study identified a correlation between evolved species' traits and susceptibility to becoming threatened or invasive. The researchers analysed over 8900 legume species and found that certain traits are more predictive of a species' fate.
The freshwater herring of Lake Tanganyika have a marine invasion origin dating back 25-50 million years. Their DNA analysis suggests that they colonized the lake during its early formation, leading to their unique diversity.
A new study reveals that human economic activity is a primary driver of invasive fish species in rivers and lakes. The research found no correlation between native species and invasive species, highlighting the need for conservation efforts to protect aquatic ecosystems.
A new national map assesses the risk of zebra and quagga mussel invasion in US waterways, with nearly 60% of land areas classified as high-risk. The map uses calcium concentrations to predict mussel distributions, highlighting regions where management resources should be targeted.
A new study suggests that nearly 60% of the US is at high risk for zebra mussel invasion due to low calcium levels in streams and lakes. The invasive species could spread rapidly through connecting waterways and recreational boating, causing millions of dollars in damage and ecological harm.
A study by York University biologists Amro Zayed and Laurence Packer found that a single mated female solitary bee is likely the founder of an invasive population. This contradicts the 'propagule pressure hypothesis,' which suggests that more individuals introduced to an area lead to a higher success rate of invasion.
The special issue explores human migration, production systems, invasive species, and their effects on ecosystems, biodiversity, and conservation policy. Scientists propose an ecological knowledge system to facilitate access to new and existing sources of ecological information.
Researchers found that snail hosts arriving from Japan led to novel disease outbreaks in North America. Genetic analysis revealed distinct invasion pathways for two cryptic species of trematode parasites, one arriving with the snails and the other historically dispersed by migratory birds.
A comprehensive genetic analysis of an invasive marine host and its parasites reveals the accidental introduction of Japanese seed oysters carrying parasitic flatworms, leading to widespread disease in the region. The study highlights the importance of identifying and mitigating disease outbreaks in a globalized economy.
A team of researchers found that controlling population peaks on the edges of the gypsy moth range can help slow their invasion into virgin territory. The study's findings suggest that suppressing outbreaks near the invasion front could reduce the number of dispersers and prevent periodic surges of growth.
A new study reveals that the green crab's expansion in Canada is being driven by multiple invasions, with biologists uncovering cryptic invasions of zebra mussels and brown algae. These invasive species are spreading rapidly, causing devastating effects on Canadian waterways.
Researchers predict widespread invasion of UK estuaries by the invasive Chinese mitten crab, which could devastate native species and ecosystems. A nationwide monitoring system is recommended to control the population before it's too late.
Researchers sequenced goby DNA to find evidence of invasion; genetic analysis suggests Atlantic gobies invaded during warm period 150,000 years ago. Warmer climate may lead to further expansion of marine species beyond cold water barriers.
A rapid assessment survey found a type of sea squirt, Didemnum sp., in Cobscook Bay that can damage ocean floor habitats and commercial species. The bay is an important source of seafood, but further research and monitoring are needed to determine the extent of the threat.
A newly discovered invasive parasite is destroying the small sunbleak minnow's ability to spawn, potentially threatening freshwater ecosystem diversity and stability. The parasite, found in Asian gudgeon fish, causes near 100% failure in successful spawning, wiping out local populations over several generations.
Researchers use network theory to find invasion hubs where invasive species spread fastest, targeting control efforts at these points. The study found Lake Muskoka and two other lakes as potential invasion hubs in Canada.
Female insects can be deceived into accepting non-nutritious gifts, enabling cheating males to infiltrate genuine gift-giving male populations. This phenomenon suggests that males' sensory exploitation of female preferences may drive the evolution of worthless gift-giving behaviors.
New discoveries have increased resolution on vertebrate morphological sequence, documented rapid tetrapod appearance, and sparked controversy over environmental factors. Research highlights adaptations that enable fish survival on land, including air-breathing organs and biochemical strategies.
A five-year grassland study found that both species abundance and loss order significantly impact ecosystem diversity, with diverse communities resisting invasive weeds. Researchers replicated natural patterns and processes to demonstrate the importance of considering realistic species loss scenarios.
The USGS Nonindigenous Aquatic Species (NAS) Alert System tracks the spread of invasive aquatic species across the US. The system allows users to report sightings, receive automatic alerts, and search for specific species.
The Panama Biological Survey (1910-1912) tracked fish migration between the Atlantic and Pacific slopes of Panama's Isthmus. New research finds that dispersal played a key role in increasing species richness in local freshwater fish assemblages, even after many generations.
The aquarium trade poses a significant threat to marine and freshwater ecosystems due to the introduction of invasive species. Experts recommend regulating the industry by listing safer alternatives and using bonds to cover potential damage costs.
The invasion of Anoplolepis gracilipes on Christmas Island leads to the displacement of a native keystone species, resulting in cascading effects on the food web. The ant's supercolonies extirpate the dominant omnivore, increasing seedling recruitment but slowing litter decomposition.
The live seafood trade is spreading non-native bivalves across the Pacific Northwest, posing a significant threat to local ecosystems. Researchers found that nearly as many ocean quahogs survived in the short-term as established species, highlighting the need for regulations and monitoring programs to control introductions.
Science historians argue that metaphors used in ecological science can carry misleading connotations and contribute to cultural bias. They claim that terms like 'natural enemy' are used without explanation or definition, leading to misconceptions about ecological interactions.
The introduction of non-native species has accelerated invasions, with many becoming economically beneficial but ecologically destructive. Biocontrol methods are often ineffective and can harm native species.
Scientists are using species profiling to help prevent invasive fish introductions into the Great Lakes and other waterways. A new method has been discovered to detect skin diseases in fish using a fluorescent dye.
The International Biodiversity Observation Year initiative has introduced innovative IT tools for biodiversity research. Researchers are utilizing technologies such as GIS, distributed databases, and genetic analysis to study global biodiversity issues. These advancements have accelerated species identification, decomposition process u...
The Ecological Society of America will host three symposia on topics such as the impact of urbanization on water quality and animal life, the effects of non-native species invasions, and research into sustainable land-use practices. The symposia aim to explore options for managing invasive species and promoting sustainable urban systems.
A new study reveals Argentine ants' success mechanisms, including numerical advantage and lack of natural enemies. The ants' unique colony structure and ability to form large supercolonies enable them to dominate native ant populations.
A study by University of Chicago paleontologist David Jablonski reveals that recoveries from mass extinctions differ significantly across geographical regions. He found varying ratios of surviving local species to foreign invaders and unique patterns of diversification, challenging previous assumptions about extinction intensity.