Articles tagged with Ants
Researchers at the University of Texas at Austin have found a natural fungus that can kill off local populations of tawny crazy ants, with 62% of infected populations disappearing entirely. The fungus is specific to crazy ants and has no effect on native species, making it a promising biocontrol agent for protecting sensitive habitats.
Scientists discovered that ants can differentiate healthy from cancerous human cells based on distinct smell signatures. The insects, trained to recognize volatile organic compounds, show high potential for cancer detection with lower costs and efficiency.
Ants have evolved a unique division of labor for over 100 million years, with fossil discoveries providing the first evidence of cooperative behavior in the early Cretaceous period. The study describes two new species of extinct ants, revealing intricate details about their anatomy and social structure.
A group of high school students, with the help of a STRI scientist, discovered that Azteca ants rapidly repair damage to their Cecropia host plants. Within 2.5 hours, the hole's size had been significantly reduced and was often completely repaired within 24 hours.
A study by UC Riverside scientists has identified a set of genes on a single chromosome associated with the production of male or female offspring in ant colonies. The discovery sheds light on the complex relationships between genetics and environmental factors in shaping the sex ratio of these societies.
Researchers discovered that ants pass proteins through mouth-to-mouth exchanges to share metabolic labor and adapt to colony needs. This discovery sheds light on how ants divide tasks between individuals and the colony's life cycle.
Researchers discovered that a single protein, Kr-h1, responds to socially regulated hormones to orchestrate the complex social transition in Harpegnathos saltator ants. The study reveals important roles for gene regulation and hormone response in controlling animal brains' plasticity.
A new study by Oxford academics found that approximately 20% of flies and cockroaches carry carbapenem resistance, while 70-80% carry extended spectrum cephalosporin resistance. Climate change could lead to a doubling of insect populations and an increase in the global spread of antibiotic resistance.
A study by Johannes Gutenberg University Mainz found that genetically diverse ant colonies produce more larvae than those with similar genetic backgrounds. This improved division of labor allows for more efficient task allocation, leading to better colony performance.
Researchers Boevé and Giot translated insect defense chemicals into sounds, measuring human reactions. The study found that the responses by ants and humans are correlated, indicating that sonification can approximate real-world predator-prey interactions.
Researchers at Aarhus University have discovered that ants excrete chemical compounds that effectively inhibit plant pathogens, offering an alternative to current pesticides. The study suggests that applying ants and their chemical defenses could protect agricultural plant production.
Researchers analyzed 1.4 million field observations and 73,000 museum records to find a strong correlation between species abundance in nature and their presence in museum collections. This method enables scientists to study species decline and estimate past abundances, providing insights into conservation efforts.
Researchers at the University of California - Riverside discovered that hummingbirds can avoid insects with defensive compounds, such as formic acid, which harm birds. The study shows that scent plays a crucial role in hummingbird foraging decisions and ecosystem function.
A recent study reveals that ants, worms, spiders, and other tiny creatures have a built-in set of tools that maximize cutting efficiency thanks to the arrangement of individual atoms of zinc. This biomaterial allows animals to use less force, making their smaller muscles spend less energy.
Researchers at Caltech studied ant digging habits and uncovered mechanisms guiding their tunnel construction. Ants use efficient techniques to minimize work, digging straight tunnels along cup edges, and sensing force chains to avoid digging there.
A long-running survey of ants at Stanford's Jasper Ridge Biological Preserve found that the distribution of Argentine ants has receded by 30% since 1994. Climate change was identified as a significant factor in this decrease, particularly during an extreme drought from 2012 to 2015.
Researchers developed a mechanical theory to determine the critical force required for needle insertion in soft materials like skin, discovering that tissue toughness and needle radius play crucial roles. The model provides quantitative predictions and may impact future technology like self-administered disposable pads with microneedles.
A research team has identified a naturally abundant venom peptide from ants that can initiate an immune response via a pseudo-allergic receptor MRGPRX2. The study reveals a novel pathway for this receptor, showing P17 induces infiltration of monocytes at the injected site by activating MRGPRX2.
A newly detected alien aphid, Aphis lugentis, poses a significant threat to Kangaroo Island's threatened plant species, including the scented groundsel. The discovery highlights concerns over invasive species' spread across Australia, with potential economic losses estimated at A$13.6 billion.
A new study reveals that giant plumose anemones off the coast of Washington state consume a surprising variety of prey, including pale-legged field ants and occasional spiders. The research utilized DNA metabarcoding to analyze the gut contents of a dozen anemones, greatly expanding the known list of their diet.
Researchers at Oregon State University have identified a new genus and species of fungal parasite in an ancient ant fossil, shedding light on the origins of this complex relationship. The discovery, published in Fungal Biology, reveals that the fungus can manipulate its host ant's behavior to facilitate its own reproduction.
Researchers found that spiders detect the chemicals released by European fire ants and choose to build their webs elsewhere. This instinctual behavior allows spiders to survive in areas with high ant activity, potentially leading to the development of more effective spider repellents.
Ant workers infected with a tapeworm live significantly longer than uninfected nest-mates, resembling the lifespan of ant queens. The parasites alter expression of ant genes and release antioxidants, contributing to their extended lifespan.
Researchers detected Argentine ant eDNA in surface soil samples from Kyoto and Kobe, indicating habitat distribution and hotspots for invasive species. This method could contribute to targeted measures and successful elimination results by combining with pest control plans.
Researchers found that army ant mass raids originated from group raiding behavior in smaller colonies, with a massive increase in colony size correlating to the evolution of mass raids. The study uses custom computer vision software to track individual ants and analyze their behavior.
Researchers sequenced the genomes of three socially parasitic ant species, finding evidence of widespread genomic rearrangements and gene losses. The study sheds light on the evolutionary consequences of transitioning from social to parasitic behavior, with significant impacts on sensory capabilities and behavioral repertoire.
A new ant species, Strumigenys ayersthey, has been discovered in Ecuador's tropical forests, featuring a trap-jaw morphology and a scientific name that celebrates gender diversity. The species' name, inspired by artist Jeremy Ayers, uses the non-binary suffix -they to recognize non-conventional gender assignments.
A Yale scientist, Douglas Booher, named an ant after R.E.M.'s Michael Stipe's friend Jeremy Ayers, a Warhol 'Superstar'. The ant was discovered in Ecuador and had unique features that set it apart from other species. Booher confirmed the discovery with German entomologist Phillip Hoenle and was joined by Stipe to name the new species.
A comprehensive checklist of 9250 Hymenoptera species in northern North America is being published. The list includes nearly 230 species of ants and over 100 species of wasps, providing valuable insights into native pollinators and biological control agents.
An international research team found that ants and flies play a vital role in pollination for cocoa, while leaf-litter management enhances tiny cocoa pollinators. The study emphasizes the need to prioritize biodiversity-friendly habitats for pollinator conservation in cocoa agroforests.
A new type of collective behaviour in ants has been revealed by an international team of scientists. The ants use scaffolds to ensure traffic flow on sloped surfaces, resulting from individual sensing and decision-making without group-level communication. This simple yet effective mechanism may inspire designs for artificial systems.
Researchers at the University of Arizona have developed a new technique to approximate neuron counts in individual animal brains, providing a more meaningful metric than traditional studies measuring brain size or weight. The study reveals that certain species of bees have a higher density of brain cells than even some species of birds.
A study on ants found that social isolation alters their behavior, reducing interest in adult colony mates and increasing time spent on brood care. The isolated ants also exhibit downregulated immune system genes, similar to humans experiencing stress and weakened immunity during the pandemic.
Researchers found that bird parents who get help with childcare live an average of one to two years longer than those who do not. This is because helpers reduce the burden of care on parents, allowing them to reproduce again and again. The study highlights the importance of hard-working helpers in ensuring the longevity of bird parents.
Researchers studied the evolution of trap-jaw ants' latch-spring mechanisms, finding that incremental changes in form led to new functions. The study reveals how these complex biomechanical traits evolved repeatedly across different continents.
Researchers discovered how trap-jaws evolved from simpler ancestral jaw mechanisms through minor changes in form and function, resulting in diverse trap-jaw forms across continents. High-speed videography revealed the fastest accelerating animal body part with resettable motion.
In Indian jumping ants, workers duel to establish new leadership after the death of their queen. The winners become pseudoqueens, acquiring new behaviors and roles, and laying eggs, allowing the colony to survive. Changes in gene expression in the brain can accurately predict the winners after just three days of dueling.
Researchers have identified a potent antifungal agent, attinimicin, produced by nearly two-thirds of Pseudonocardia strains in Brazilian ants. This compound has broad geographic distribution and shows promise as a potential drug candidate for fighting fungal infections.
Researchers found that some caterpillars have bodies covered with molecules identical to those of the plants they inhabit, making them 'invisible' to ants. Others produce a caloric reward for ants to coexist, demonstrating a form of chemical mimicry and potential adaptive advantage.
Researchers at the University of Exeter and Plymouth found that animal groups consider various factors, such as group cohesion, individual strength, and prize importance, before deciding to fight. This study highlights complexity in group conflicts and provides insights into conflict resolution in humans.
Fungus-farming ants have domesticated fungus over 60 million years, retaining a stable food supply despite climate change. They regulate nutrients used to grow crops, using a blend of plant substrates to target specific nutritional requirements for their fungal crop.
Researchers studied attine ants and their fungal crops, finding that the ants' ability to target specific nutritional needs evolves as they develop more advanced farming practices. The findings suggest that humans can learn from nature's agricultural systems, which prioritize nutritional sustainability over industrial-scale production.
Researchers found that loss of flight allowed ants to reorganize their thorax muscles, increasing strength and power. This adaptation enabled worker ants to carry heavy loads back to their colonies, a key factor in their social success.
Researchers discovered a distinctive supergene in fire ant colonies determining young queen behavior, leading to new pest control methods. The study also found aggressive behavior towards queens without the supergene.
Researchers observed black imported fire ants using sand to draw liquid food out of containers when faced with drowning risk. The ants' tool-making skill reduced drowning risk and provided a larger space for collecting sugar water.
Newly mated red fire ant queens select nest sites with lower pathogen risk based on chemical signals from actinobacteria. These bacteria produce compounds that inhibit the growth of ant-infecting fungi, allowing ants to survive and thrive in safer environments.
Researchers at McGill University have discovered that bacteria and carpenter ants collaborated to alter the development of the ant embryo, creating a single complex life form. The study reveals that this integration occurred in a series of steps, with the bacteria exploiting existing genetic loci within the ant embryos.
Scientists at the Universities of Bath and Sussex have developed a new system that slowly releases ant pheromones to attract pests to an insecticide bait. This innovative approach aims to reduce pesticide spraying and minimize environmental damage.
Researchers have discovered a 99-million-year-old fossil of an ancient 'hell ant' that shows how it hunted its prey with deadly precision. The fossil, which is one of the oldest and most well-preserved ever found, reveals the mechanism behind the hell ant's unique mouthparts and headgear.
Researchers confirm special trap-jaw predation mechanism in ancient hell ants, providing new insights into their evolution. The study reveals an extinct early burst adaptive radiation triggered by innovation in mouthpart movement.
Researchers used DNA sequencing, 3D imaging, and computation to examine the taxon cycle hypothesis for how evolution occurs on islands. They found that all 14 endemic ant species were descended from a single colonizer, contradicting the theory's prediction of repeated colonizations.
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 created a basic model of an ant body using ellipsoids to understand center of balance and evolution among body segments. The study reveals how ants maintain balance despite large head sizes, with implications for bio-inspired machine design.
Caterpillars of the Lycaenidae family have evolved to associate with ants, which protect them from predators in exchange for sugary secretions. These associations are driven by chemical signals and rewards, allowing caterpillars to minimize energetic costs while maximizing protection.
Chronic exposure to thiamethoxam has negative impacts on black garden ants, compromising colony survivorship. The study highlights the importance of sustainable agricultural practices to prevent damage to natural ecosystems.
Researchers found that areas with high fire ant populations had lower rates of the meat allergy, which is caused by the lone star tick. The study suggests that fire ants may be competing with ticks for a resource, limiting the spread of the allergy. However, this also means that fire ant bites can cause severe allergic reactions.
A team of researchers from the University of Bristol developed an ant-inspired method for mathematical sampling, which outperforms traditional methods. The study found that ants' collective behavior can be used to create a more efficient way of exploring complex probability distributions.
Researchers at Edith Cowan University have discovered a plant that has evolved to use ants as pollinating agents by adapting its pollen grains to overcome ant antimicrobial defences. This is the first plant species found to benefit from this mutually beneficial relationship.
Researchers found that ants tend to avoid parts of impediments that slow them down, similar to how light rays take time-reducing paths. The study used lens-shaped impediments and observed that ants diverged from the center on convex lenses and converged on concave lenses.
Researchers demonstrate that locally observed robot distribution can correlate with environmental features, such as exits in office-like environments. This approach enables trapped office workers to navigate their way out of a collapsed building, even in scenarios where robots lack communication or sensors.