Articles tagged with Ants
Researchers found that tropical fire ants in Florida can coexist with both single- and multi-queen colonies. In multi-queen colonies, all reproductive queens are genetically identical and reproduce asexually.
A team of researchers from the University of Hong Kong has added 13 new species to the existing list of ants, including three miniature trap-jaw ants and five non-native species. These discoveries highlight the importance of monitoring insect populations in Hong Kong and beyond.
A study on turtle ants found that gynes have larger brain volumes than soldiers and minor workers, while their brains differ in regions associated with cognitive processing. The authors suggest that these differences may aid in performing specialized tasks, and could provide insight into the evolution of caste specialization.
Gene activity in defenders reflects origin of attacking slavemakers, with successful invaders triggering weaker defenses. Researchers found that host ants react aggressively to rare slave-makers and not to common ones, highlighting the complex co-evolutionary relationship between parasites and their hosts.
Researchers at the University of Cincinnati found that adult jumping spiders mimic two species of ants to deceive predators, but retain their spiderly figures to woo potential mates. The spiders' detailed mimicry involves waving forelegs like antennae and performing weaving behavior, but they have lost the ability to jump.
Researchers document a new 'behavioral realm' in Eastern chimpanzees of the Bili-Uéré region, characterized by novel tool use and expanded food processing technologies. This discovery sheds light on the likely incipient traditions of early hominin ancestors and highlights the importance of studying intact ape cultures.
Researchers found that acacia ants can sense vibrations caused by mammalian browsers and respond accordingly. The ants patrol the branches more actively when they detect these vibrations, allowing them to navigate towards the source of the threat and defend their tree.
AntBot, a new robot developed by CNRS and Aix-Marseille University, replicates the navigation capabilities of desert ants using polarized light and optical sensors. The robot can explore its environment and return to its base with precision, covering distances of up to 14 meters.
Researchers found that lizards from high-stress environments had more robust immune systems when exposed to prolonged stress, suggesting a potential adaptive advantage. The study's results may have implications for human stress response and disease prevention.
Ground beetles of the genus Ozaena have been found to have morphological modifications that indicate they parasitize ant nests, unlike other species. These adaptations enable them to exploit ants as their sole source of food throughout their life cycle.
Researchers found that tilled fields had smaller ant nests, which consume fewer weed seeds, while no-till fields had more evenly distributed ant nests. This suggests that preserving ant colonies by reducing tillage could benefit farmers in managing weeds.
The Dracula ant has the fastest animal movement on record, with its mandibles snapping shut at incredible speeds. This unique mechanism allows the ants to capture prey and defend their nests, making them a fascinating subject for study.
The California Academy of Sciences has added 229 new plant and animal species to the family tree, including 120 wasps, 34 sea slugs, and seven flowering plants. These discoveries were made over five continents and three oceans, highlighting the vast and dynamic planet's unexplored places.
Research reveals that eastern fence lizards adapt their behavioral and physical traits to avoid being attacked by fire ants. As fire ants expand their range northward, lizards switch from relying on camouflage to twitching and fleeing to remove the ants, leading to significant changes in limb length and stress physiology.
When working ants take a sick day, they alter their social interactions to protect vulnerable members. By changing their behavior, the colony reduces the risk of fungal infection and maintains social distancing.
Researchers found that ants' subdivision into groups reduces disease risk by changing behavior and interaction patterns. Colonies protect the queen and most valuable individuals from pathogens, with a high correlation between predicted spore load and mortality.
A new study reveals that Florida's Formica archboldi ant uses chemical mimicry to hunt trap-jaw ants, with cuticular hydrocarbon profiles matching native species. The research expands knowledge of an important insect chemical phenotype and provides insights into the evolution of chemical diversification.
Researchers found that ants select medium-sized soil grains with quartz over feldspar for their structures, potentially altering palaeoclimatic data. This study highlights the importance of considering bioturbatory action in paleontological analyses.
Researchers report that ant-plant interactions began in the Mesozoic era, with ants shifting from predation to herbivory. The study suggests that plant diversification was facilitated by ant interactions but not vice versa.
Researchers found that plants developed ant-friendly traits long after ants started relying on them for food and habitat. Plants use ants to spread seeds and act as bodyguards, while ants benefit from rich nectar and shelter in hollow thorns.
Researchers at CU Boulder discovered statistical rules governing fire ant colonies' flexibility, which may help craft smart polymers and swarming robots. The findings could also aid in understanding dynamic networks in nature, including human cells.
The study proposes a three-tier architecture based on an ant colony algorithm to improve Cloud performance, reducing response time and cost.
Scientists at McGill University found that a rudimentary 'organ' in ants regulates the balance between soldiers and workers, allowing colonies to maintain a constant ratio. By controlling the growth of this organ, ants can rapidly produce more soldiers when needed.
Researchers found that ants wrap pupae in a silk cocoon to shield them from acidic chemicals used for nest cleaning. This practice protects the pupae from harm, reducing mortality rates. The study provides insights into ant immunopathology and its similarities with human immune responses.
Researchers discovered that fossil ants preserved in amber had specialized structures to support bacteria that produced antibiotics, helping them combat crop diseases. This ancient ant-bacteria symbiosis evolved independently three times and may hold clues for reducing antibiotic resistance in humans.
Researchers found that treating ants with dopamine increased individual foraging trips and sensitivity to humidity. The team also used a dopamine inhibitor to verify their results, showing that increased dopamine levels led to more foraging and improved colony behavior.
Researchers found that desert ants can learn multiple food odors in a short time and retain them throughout their lives. In contrast, they require repeated exposure to learn a single nest odor and may forget it quickly after removal from the nest. These findings suggest different memory processes for food and nest-related cues.
Research reveals that desert ants can learn and retain up to 14 distinct food-associated odors, a crucial adaptation for navigating diverse food sources. This memory lasts for up to 26 days in nearly half of the ants tested, outlasting their average life expectancy.
Researchers analyzed ant venom from a tropical species and identified over 2,800 venom peptides, including 37 full-length peptide precursors called myrmicitoxins. The peptides showed sequence similarities with those produced by other insects, suggesting they evolved from ancestral genes.
A new virus has been discovered that may help combat invasive fire ants by reducing their foraging activity and altering their dietary preferences. However, this could also impact the efficacy of conventional chemical control methods.
A study has identified a single gene called insulin-like peptide 2 (ILP2) as the key determinant of queen and worker roles in ants. The gene is activated by better nutrition and stimulates ovaries to trigger reproduction, explaining the emergence of social behavior in insects.
Researchers gathered data on popular ecological phenomena like flying ant emergence and starling murmurations using Twitter hashtags and text, replicating most findings from primary citizen science studies. The study shows that passive citizen science via social media can generate robust and interesting data for ecological research.
Researchers found that ant colonies with as few as six individuals experienced significant benefits from group living, including better-surviving babies and faster growth. The study suggests that increases in group size alone can create benefits for small colonies, challenging the idea that strong groups require strong leaders.
A recent study published in Nature found that even small groups of genetically identical ants exhibit greater stability and division of labor when compared to solitary individuals. This research challenges the long-held assumption that competition is more attractive than collaboration when resources are scarce.
A study by Georgia Institute of Technology researchers found that 30% of ants do 70% of the work in fire ant colonies, optimizing digging without clogs. Robots programmed to mimic ant behavior outperformed their human-made counterparts, demonstrating the efficiency of unequal work distributions and reversal behaviors.
Researchers studied ants' tunnel excavation to understand optimal traffic flow in crowded environments. They found that idleness, reversals, and uneven work distribution reduced clogs and improved performance. These strategies can be applied to improve movement in engineered systems like robot swarms.
A new study sheds light on the evolution of workers and queens in ants by identifying a key gene involved in regulating reproduction. Researchers found that a gene coding for an insulin-like peptide, ILP2, promotes and suppresses reproduction in ants.
A single gene, insulin-like peptide 2 (ilp2), regulates eusociality in ants by influencing reproductive cycles and division of labor. High expression of ilp2 in reproductive ants suggests a key role in the development of complex societies.
Noa Pinter-Wollman's research aims to create a new field of study combining biology, psychology, and architecture to improve human health, teamwork, and collective behavior. The new field has implications for designing healthy environments, such as buildings and communities, that promote well-being.
A study published in BMC Zoology found that ant soldiers have smaller brain sizes than workers despite being larger, as their tasks place less cognitive demand. This suggests that investment in brain development may be reduced for individuals with simpler behaviors.
Insectivorous birds consume between 400 and 500 million metric tonnes of insects per year, mainly beetles, flies, and other arthropods. This helps keep plant-eating insect populations under control, supporting forest ecosystems.
The journal has published 4103 articles, 45 newly described animal families, and 8977 species, with a focus on open access and collaboration. Recent issues include a study on mid-sized carnivores in urbanized Europe and the discovery of a new shrub frog species in China.
Researchers from Newcastle University discovered that human embryonic stem cells travel back and forth in a line, revealing subtle patterns to their movement. This finding has important implications for the development of computer models to predict and control stem cell evolution.
Researchers discovered a behaviour-modifying chemical weapon produced by the fungus parasite Escovopsis, which alters leafcutter ant behavior and leads to colony collapse. The study sheds light on the complex arms race between ants and their parasitic partners.
A team of scientists analyzed ant species distributions to understand why biodiversity is higher in the tropics. Their research suggests that time is key to species diversity, with tropical habitats having had more time to accumulate species.
Researchers found that climate change led to a shift in the host choice of zombie ant fungi, from leaves to twigs and bark, as tropical forests transitioned to temperate areas. The study, published in Evolution, reveals that this adaptation occurred independently in different locations around the world.
The Matabele ant, a species of termite-eating ant, uses detours to increase its speed while traveling back to the nest. By taking the quickest route rather than the shortest one, they reduce their travel time by an average of 35%. This navigational skill is unique to this species and allows individual ants to make decisions independently.
Astronomers have detected a unique laser emission from the heart of the Ant Nebula, indicating the presence of a double star system. The phenomenon was discovered using European Space Agency's Herschel space observatory and is connected to the death of a star.
Researchers discovered that wasps produce distinct sounds by drumming their abdomens against different parts of the nest, signaling good food is nearby. This complex communication behavior is similar to that seen in ants, bees, termites, and other social insects.
Ants working together use switching between two types of motion to overcome barriers, with smaller groups favoring squeezing through a narrow hole and larger groups using sideways motions around the barrier. The size of the food item determines which mode of motion will dominate.
A genetic analysis reveals leafcutter ants originated in South America and owe their success to more than just crop selection. The ants' ability to consume fresh leaves allows them to access a vast ecosystem, enabling massive colonies with specialized tasks.
Researchers analyzed border interceptions of ants at US and NZ ports for nearly 100 years, finding over 75% originated from countries with prior introductions. The study highlights a mode driving global spread of invasive species.
Researchers found that desert ants look back precisely at the nest entrance while performing pirouetting motions, suggesting they use the magnetic field as an orientation cue. The ants' ability to integrate this information with other navigational cues like the sun and landmarks is still unknown.
Researchers found that parasitic ants are accepted by host colonies due to their potent chemical weaponry, which protects against a more deadly invader. The study suggests a mutually beneficial relationship between the hosts and parasites, where the enemy of your enemy is your friend.
A new ant species from Borneo has been discovered, exhibiting a unique explosive defense mechanism that releases toxic liquid when threatened. The discovery sheds light on the biology of 'exploding ants,' which were previously poorly understood due to limited evidence.
Research found rock ants with slightly better vision in one eye tend to turn left, contradicting previous thinking on human lateralization. This suggests physical indicators of lateralization can be externally observable.
A team of researchers has found that a specific bacterium in the microbiota of leafcutter ants produces trail pheromones, which guide the ants to their nests without deviation. The pyrazine-producing bacteria were discovered by chance while investigating the ants' defense against parasitic fungi.
Researchers assess whether extreme weather events like Hurricane Harvey impact invasive pests, pollinators and other species. The team evaluates changes in ant communities to determine if floods accelerated the invasion process by invasive fire ants and tawny crazy ants.
Infected 'zombie ants' do not face aggression from their nest mates, but instead continue to share food resources until they leave the nest to die. The fungus is a chronic condition for the colony, without inducing strong defensive measures.
Turtle ants rely on symbiotic bacteria to produce nitrogen, allowing them to thrive on low-quality food sources. The study found that these microbes are essential for the ants' survival, enabling them to adapt and lose traits like aggressive behavior.