Articles tagged with Ants
Researchers found that social insects' policing behavior against cheating workers cannot be explained by relatedness alone. Instead, the energy invested in laying eggs detracts from colony efficiency and growth.
Researchers found that when plants supply ants with nectar, it boosts the ants' desire for meat, making them better bodyguards. The most convenient protein packets for ants on plants are often insects that are there to munch on the plant.
Research shows that larger ants are better at carrying seeds far from their mother plants, but invasive species like Argentine and fire ants pose a threat to native plant populations. The study found that smaller ants cannot disperse seeds as efficiently, leading to reduced seedling survival.
Researchers at Stanford University challenge the existence of a single supercolony of Argentine ants spanning California. Instead, they propose that multiple genetically distinct colonies have colonized the state over the past century.
Researchers found ants in Florida, North Carolina, and New York exhibit different caste structures and body sizes, suggesting adaptation to local environments. Behavioral experiments show soldier castes play a key role in colony defense.
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.
A study by Sean Brady reveals that army ants originated from the same source on Gondwana 100 million years ago, instead of evolving independently on separate continents. The ants' unique characteristics, including nomadic behavior and reproductive adaptation, have remained unchanged over time.
Researchers found that ants use distinct body odors to signal tasks, such as foraging and patrolling, allowing them to coordinate complex behaviors without a hierarchical control structure. The discovery sheds light on the importance of scent in insect communication and has implications for fields like computer science and robotics.
A study found that venom immunotherapy significantly reduced the risk of severe systemic reactions to jack jumper ant stings in healthy adults. The treatment was effective in preventing life-threatening reactions, even in those who had previously experienced severe symptoms.
Researchers studied DNA sequences to understand co-evolutionary system between ants, garden fungi and parasitic fungal weeds. They found that the system has been locked in an evolutionary 'arms race' for millions of years.
The study aims to identify disease-fighting fungi and understand their role in nutrient cycling. By analyzing multiple genes and structural characteristics, researchers will create a database to distinguish between beneficial and harmful fungal species.
In mutualistic relationships, the slower-evolving species tends to gain a disproportionate share of benefits. This phenomenon, dubbed the Red King effect, is particularly pronounced when one side has little room to negotiate, forcing the other side to give up more if they want to continue the relationship.
Researchers found that invasive ants build shelters for mealybugs, allowing them to feed safely. The mealybugs produce a significant amount of honeydew, providing 32% of the daily energy for fire ant colonies.
A recent study suggests that predators play a key role in maintaining a balanced ecosystem. The research, conducted on small islands with no natural predators, found that the absence of top-down regulation led to an explosion in plant-eating animals and herbivores, resulting in a collapse of vegetation.
Researchers have discovered a fire ant protein linked to its senses of smell and taste, which may help regulate social behavior and structure in colonies. The protein's unique properties could be used as a pest control method by disrupting the ants' sensory signals.
A study found that invasive Argentine ants eliminate native ant species, affecting seed burial and plant regeneration in fynbos ecosystems. This disruption can have cascading effects on the entire community, highlighting the threat of invasive species.
Researchers discovered that ants and bees use dynamic sticky organs to adhere to various surfaces. The arolium footpad, which secretes a fluid for adhesion, is a key component of this complex system.
Researchers at North Carolina State University discovered that fire ant queens can alter the sex ratio of their colonies by limiting female eggs laid. This finding suggests a negotiated middle ground between queens and workers, who have competing interests in raising new colony members.
Biologists at UCSD discovered that the Argentine ant's ability to thrive in California is due to its low genetic diversity, which allows it to recognize and accept individuals from the same colony. This has led to the formation of a single, large 'supercolony' that dominates native species.
Researchers find that African ants' pruning behavior increases colony life span, but harms host trees, sparking debate on ecological partnerships. The study sheds light on why weaker competitors can persist in diverse ecosystems.
Fire ant attacks have been reported in US healthcare facilities and homes, resulting in severe medical complications, including death. The medical complications of fire ant stings can range from mild irritation to death from a generalized allergic reaction, depending on the number of stings and the physical condition of the victim.
Researchers at Virginia Tech created an environmentally safe bait to control carpenter ants by understanding the insects' foraging behavior and diet. The bait was developed using a combination of proteins, sugar, and other compounds, and has been shown to be effective in reducing ant populations and improving homeowners' quality of life.
A University of Colorado at Boulder study reveals that Ectatomma ruidum ants employ chemical camouflage to infiltrate neighboring nests and steal food, relying on vigilance of guard ants to eject intruders. The unique strategy allows the peaceful species to prosper despite its inability to kill individual members.
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.
Researchers found that native gray ants are the most important predator of peach twig borer larvae in peaches and nectarines. Native gray ant populations were not affected by orchard floor management practices, but cultural practices like cover cropping or disking may benefit them by reducing southern fire ant numbers.
Researchers at Clemson University are testing a naturally occurring disease to control fire ant populations, which have devastating effects on the environment and economy. The disease reduces the ability of queen ants to lay eggs, slowly killing colonies over six to eight months.
Researchers found that flooding in Venezuela's Lake Guri dam project isolated butterfly and ant species, causing some to thrive while others declined. The study highlights the complex effects of ecological disturbances and has implications for conservation efforts in fragmented landscapes.
Researchers at Cornell University have identified a chemical compound, anabaseine, in the secretions of ants that shows promise as a potential treatment for Alzheimer's disease. The compound stimulates nicotine receptor sites in the brains of patients and helps reduce memory loss.
The discovery of 92-million-year-old fossil ants in New Jersey amber confirms the existence of ants during the Age of Dinosaurs. The fossils show a metapleural gland, essential for ants' social system and ecological dominance.
Recent insect fossil discoveries show that beetles and ants played a crucial role in recycling nutrients in Jurassic ecosystems. The findings, published by University of Colorado at Boulder researcher Stephen Hasiotis, provide new insights into ecosystem health and biodiversity.
Researchers discovered that the millipede Polyxenus fasciculatus uses its rear to confront ants and other attackers, employing a complex defense mechanism involving detachable bristles with barbed hooks. The bristle tufts can entangle predators, making it difficult for them to escape.