Articles tagged with Ants
Researchers studied fire ants' tunnel networks to discover fundamental principles of locomotion that can be applied to robot teams working underground. The study found that ants use their antennae for both sensing and movement in confined spaces, allowing them to move quickly and easily through tunnels.
Invasive crazy ants are displacing fire ants across the southeastern US, eliminating native species and reducing biodiversity. Crazy ants outcompete fire ants for food sources and damage electrical equipment, making them a significant pest.
Ant colonies that restrain foraging except in prime conditions experience improved reproductive success. Natural selection favors regulating foraging to hold back when conditions are bad, shaping collective behavior exhibited by the entire colony.
John Heraty will study the eucharitid wasp genus Orasema, a specialized group of ant parasitoids. More than 200 species are expected to be described as part of the study, which aims to understand relationships and species boundaries.
Researchers have uncovered a large radiation of previously overlooked Neotropical ants, with 40 species described, including those that nest in clay banks. These ants use 'door-pebbles' to block their entrances and maintain a protected environment for breeding and foraging.
A new study reveals that ants alter the sugar-chemistry of flowers they visit by transmitting yeast to the nectar. This change affects subsequent pollinator visitations and may impact plant fitness. The research suggests a complex interaction between plants, yeasts, and pollinators.
Scientists construct largest ant family tree-of-life using DNA sequence data, confirming that modern ants originated between 139-158 million years ago. The study also reveals the Neotropics as a vital region for ant evolution, both preserving ancient groups and generating new species.
A team of researchers successfully replicated the behavior of a moving ant colony using miniature robots, called Alices. The robots navigated mazes by following chemical pheromone trails and directional random walks, demonstrating that efficient navigation can be achieved with minimal cognitive abilities.
A mysterious parasitoid wasp, Seleucus cuneiformis, has been found on a rare European fern sawfly, Blasticotoma filiceti. The study, published in Journal of Hymenoptera Research, reveals the unusual biology of this parasite, including its symbiotic relationship with ants, which live in symbiosis based on food for protection.
Research on the Florida carpenter ant reveals that epigenetic regulation plays a key role in distinguishing two worker castes with strikingly different behaviors and physical characteristics. Histone modifications, including those influenced by the CBP regulator, are found to correlate with gene expression levels and cognitive abilities.
Researchers have identified specific parent ants and their children in wild colonies, allowing them to study reproduction trends. The study found that only about 25% of colonies reproduce annually, with most relying on just a few successful queens.
Researchers found Asian needle ant successfully displacing Argentine ants in an urban environment, suggesting it may be the next dominant invasive species. The Asian needle ant's ability to tolerate cooler temperatures gives it a head start over Argentine ants, allowing it to reproduce and build nests earlier.
Ant pupae employ acoustics to signal their rightful place in the colony's hierarchy, influencing adult ants' behavior. Researchers discovered that pupae make sounds similar to adults with 'file and scraper' organs, essential for maintaining social status.
Two wasp species have been recorded as parasitoids of ant-eating spiders. The parasitic behavior involves the wasps attacking and using the spider's juvenile as food for their own development. This study highlights the unique relationship between these wasp species and the ant-eating spider, Zodarion styliferum.
A Wayne State University researcher has developed a mathematical model-based methodology to estimate the optimal amount of time spent developing a product, as well as its cost, in overlapped product development. The approach could reduce product definition time by up to 50% and improve critical thinking.
Researchers identified a social chromosome in the red fire ant that enables multiple queens, outperforming single-queen colonies in busy environments. The discovery could lead to novel pest control strategies, such as deactivating genes in the social chromosome to induce social anarchy.
Researchers found high concentrations of gold in termite mounds, indicating a larger deposit underneath. These insects bring up small particles containing gold from the deposit's fingerprint and stockpile it in their mounds.
Enslaved worker ants kill off parasite offspring to increase chances of survival for their neighbors. Slave workers feed and care for larvae but neglect pupae, resulting in low survival rates. This behavior benefits neighboring colonies by reducing slave-maker colonies' growth and effectiveness.
Researchers at Arizona State University found that ants use collective decision-making to handle complex choices, beating individual selection. By sharing the load, colonies avoid mistakes made by solo animals overwhelmed by too much information.
The Rasberry Crazy Ant, an invasive species in Texas, has been identified as Nylanderia fulva, which will aid in controlling its spread. The species is now known to be distributed more widely than initially thought and may have invaded all Gulf Coast states.
The Borderea chouardii plant, critically endangered and found only on two cliff sides in the Pyrenees, employs a doubly mutualistic reproductive strategy with local ants. The plant's unusually long lifespan and climatically stable habitat contribute to its success.
Researchers at Vanderbilt University discovered that ants have four to five times more odor receptors than most other insects, enabling them to form highly organized colonies. The team mapped the olfactory system of two ant species, finding significant differences in receptor expression and chemical signals between males and females.
Ants use an algorithm to determine how many foragers to send out based on food availability, similar to internet protocols discovering available bandwidth. The discovery could inform the design of networked systems with ant-inspired algorithms.
Researchers mapped ant genomes to reveal relationship between epigenetic regulation and caste differentiation. DNA methylation patterns correlated with alternative splicing events and caste-specific genes.
Researchers discovered that lady beetles intercept and utilize Azteca instabilis ants' alarm pheromones to locate safe egg-laying sites. This finding reveals a complex interaction between insects, with potential implications for pest management on coffee plantations.
The Entomological Society of America has elected ten new Fellows for 2012, including Christian Borgemeister and Henry Hagedorn, recognized for their research on biological control and integrated pest management. The ESA International Branch also named Joseph Morse as a Fellow, honored for his work in entomology and systems science.
Researchers found that males with ant-eating traits have ornament shapes resembling ants, attracting female bites that develop a search image for the food. Sensory drive promotes differences among populations based on species in the community.
A new species of phorid fly has been discovered, belonging to a family known for 'decapitating' ants. The tiny fly, Euryplatea nanaknihali, is 15 times smaller than a house fly and feeds on the heads of small ant species.
Research reveals that ants farm subterranean aphids in clone groups, with over half of ant mounds containing a single species or clone. This unique farming method allows ants to actively manage diversity and abundance, maximizing honeydew yield and dietary protein.
Researchers discover 9 new genera of ants in the Philippines, bringing the total to 474 known species. Habitat destruction threatens these unique communities and many more remain unexplored.
Male Cardiocondyla obscurior ants use chemical tagging to identify and kill younger rival males, ensuring colony survival. This behavior increases the chances of surviving fights against two-day-old males to 14%.
Researchers discovered a novel trapping mechanism in Nepenthes gracilis pitcher plants, where heavy rain acts as a springboard to catch insects. The unique mechanism involves a thin film of water on the wettable rim, causing insects to slip and fall into the digestive fluid.
Researchers at UC3M developed an algorithm called SoSACO that accelerates route-finding in social networks by mimicking the behavior of ants. This allows for rapid responses in tens of milliseconds, with applications in various fields such as online games and delivery systems.
Researchers found that carnivorous plants in symbiosis with ants produced larger leaves, increased nitrogen availability, and improved growth. The ants acted as the plant's 'gizzard', recycling nutrients from insects caught in the plant's traps.
A hyperparasitic fungus has been found to effectively combat the zombie-ant fungus, limiting its spread and survival. The research model shows that only about 6.5% of spore-producing organs were viable, suggesting a smaller threat to ant colonies.
Researchers found that ant queens from species Cardiocondyla obscurior laid more eggs as they aged, unlike humans and other organisms. This high reproductive rate did not shorten the queens' life spans, a surprising finding.
Researchers found that ants' social contact with sick ants promotes disease protection in their group members through low-level micro-infections. This social mechanism enables colonies to recover more rapidly from infections.
Desert ants utilize a combination of path integration, visual cues, olfactory signals, and even magnetic fields to return home. They can recognize their own nest by tracking the plume of carbon dioxide produced by their nestmates' breathing, yet prioritize path integration over this chemical signal.
Desert ants were trained with magnetic and vibrational landmarks relative to their nest, showing that the behavior was learned. The ants had no innate preference for these cues, suggesting they are adaptable navigators.
Researchers have found that bacteria help decompose the leaves and turn them into nutrients for both ants and fungi. The study, published in The ISME Journal, reveals a new understanding of the symbiotic relationship between leafcutter ants, fungi, and bacteria.
Weaver ants share a collective memory of rival ant odors, which helps them identify and compete with rivals. This collective memory gives the colony an edge in competition by priming all nest mates with information about rivals before they encounter them.
A study published in PLOS ONE found that worker ants can paralyze and kill termites without direct contact, thanks to their potent venom. The researchers discovered three functions of the ant venom: attracting nestmates, repelling alien ants, and killing termites.
Researchers found that silverfish steal the ant's scent to avoid being killed or rejected from the nest. By continually updating this scent, the silverfish remain protected from ant aggression. This co-evolutionary arms race highlights the ants' complex scent recognition system and the silverfish's elaborate behavioral adaptations.
A UT study reveals climate change affects ants' ability to disperse seeds and perform vital ecosystem functions, potentially jeopardizing plant biodiversity. Researchers observed dramatic changes in ant behavior in response to temperature increases.
Researchers at Purdue University have discovered odorous house ants in Hawaii, forming large megacolonies that are outcompeting native species. The invasive ants are thriving in Hawaii's climate, which allows them to eat and expand faster than in their native range.
A study by University of Leeds ecologists reveals that over 80% of ant species found in pristine forests were also present in logged areas. This finding has implications for forest conservation, suggesting that areas previously thought to have little value can still support diverse communities.
In polygynous colonies, worker ants reinforce dominant queens by feeding and grooming them, while eliminating weaker sisters. Researchers found that inter-queen fighting involves ritualistic behavior, while workers are more aggressive, suggesting a complex reproductive strategy to maintain queen dominance.
A study found that fast-evolving genes in social insects like fire ants and honeybees are responsible for their developmental differences. These genes exhibit elevated rates of evolution, even before they are recruited to produce diverse forms.
Four species of wasps show remarkable adaptations in attacking ants, with two new species described. The study reveals how young wasps survive inside ant nests by exploiting dead ants outside the entrance.
Research at Johannes Gutenberg University Mainz found that ant colonies with higher levels of aggression and behavioral variability are more productive, producing more offspring and biomass. This suggests that a division of labor based on individual personality traits may be the key to their ecological success.
A recent study on leaf-cutting ants has sequenced their genome, revealing key adaptations behind their unique social behavior and fungus farming lifestyle. The research found that specific genes are involved in mating system adaptations and symbiotic food processing with the fungus.
Ladybird beetles' ability to produce anti-ant defences has led to their high diversity, with most species having one or both of these defences. This evolutionary shift allowed ladybirds to successfully poach soft-bodied scale insects from under the noses of aggressive ants.
A native species, the plucky winter ant, has been discovered using chemical warfare to combat the Argentine ant invasion. In laboratory testing, the poison had a 79 percent kill rate, making it a potential game-changer in ecosystem defense.
Researchers Anna Dornhaus and Benjamin Blonder found that ant colonies exhibit unique behavior, contradicting the assumption of universal properties in self-directed networks. The study recorded over 9,000 interactions between individual ants, providing insight into complex communication within the colony.
Researchers discovered that ants use chemical signals on their host tree to distinguish it from competing plant species. The team found that the ants more aggressively attacked papers coated with extracts from a closely related species, demonstrating the high degree of specificity for their host tree.
Researchers have discovered a new compound, VUAA1, that directly stimulates the Orco co-receptor in mosquito odorant receptors, overwhelming the insect's sense of smell. The compound is thousands times more effective than DEET and works against flies, moths, ants, and other insects.
A parasitic fungus infects tropical carpenter ants, causing them to become zombie-like and die in ideal conditions for the fungus. The fungus affects the ant's muscles, nervous system, and behavior, leading to a loss of coordination and death.
Researchers investigated zombie ants in Thailand's rainforest, finding they were manipulated by the fungus into dying at optimal conditions for reproduction. The fungus causes muscle atrophy, central nervous system damage, and 'lock jaw', forcing infected ants to bite leaves to release spores.
A recent study by Max Planck Institute researchers discovered that ants can recognize the distinctive body odor of caterpillars after they consume sugary secretions from wild tobacco plant trichomes. The caterpillars develop a unique odor profile, which is then detected by predatory ants, making them easier to locate and feed on.
Studies by CSIRO and the University of Sydney found that ants and termites can increase wheat crop yields by up to 36% under low tillage conditions. The insects improve soil nitrogen and water infiltration, reducing runoff and evaporation. This breakthrough has significant implications for dryland agriculture in hot and dry climates.