Articles tagged with Insects
A study published in Functional Ecology found that grasshoppers living beside noisy roads produce different songs with elevated frequency components. This adaptation helps them make themselves heard above road traffic, potentially disrupting the grasshopper's mating system.
Harvard scientists have solved the long-standing mystery of how some insects form germ cells, discovering that a cricket's oskar gene is far older than previously thought. The team found that the gene emerged in their last common ancestor and likely originated in the nervous system before being co-opted for germ cell formation.
Research estimates that European countries with weak agricultural import controls are more vulnerable to exotic insect pests. The study provides new metrics to evaluate and improve border controls, highlighting the need for better biosecurity measures to prevent invasive insects from entering the continent.
Researchers found that archer fish modulate water jet velocity to create a single large drop that hits prey with great force. This approach avoids the need for specialized internal structures, allowing the fish to achieve powerful impact without significant evolutionary costs.
A 16-million-year-old amber fossil reveals a surprising interaction between springtails and mayflies. The study, published in PLOS ONE, shows that springtails may have travelled on the wings of flying insects like mayflies, a previously unknown mode of transport.
A 520-million-year-old fossilized arthropod has revealed a remarkably well-preserved brain structure, challenging the long-standing debate on the origin of insects. The discovery suggests that complex brains evolved earlier than previously thought and have changed little over time.
A new rearing technique for the parasitoid wasp Habrobracon hebetor has shown promise in conditioning the insects to survive storage at 41 degrees Fahrenheit. This method, which involves simulating reproductive diapause, could give commercial insectaries greater flexibility and reduce costs.
Researchers found a 100 million-year-old fossil of an ancient spider attacking its prey caught in its web. The discovery provides the oldest evidence of social behavior in spiders and offers a unique glimpse into the distant past.
A new study by Ohio State University graduate student Kellen Calinger reveals that non-native plant species are more adaptable to climate change, while native wildflowers show a weaker response. This difference in adaptability could lead to the displacement of native species and alter ecosystem balances.
A study from the University of Toronto Mississauga discovered that insect interaction can cause rapid evolutionary changes in plants, with populations diverging significantly in as few as three to four generations. This suggests that insects play a crucial role in plant evolution and diversity.
A new viral outbreak in Africa has been linked to the Bas-Congo virus, a previously unknown microbe that causes deadly acute hemorrhagic fever. Genetic analysis reveals the virus is distinct from other rhabdoviruses, including those causing rabies.
A new study reveals that sundew plants use catapulting snap tentacles to propel prey into their leaf trap, enhancing digestion and capture efficiency. This unique mechanism increases the plant's ability to capture larger insects and improves overall carnivory capabilities.
The green stink bug is a significant native species causing cosmetic damage and yield reduction in various crops. The article offers management options, including neonicotinoids, trap cropping, and biological control, to address this pest's impact on integrated pest management systems.
Researchers have successfully used papaya as a banker plant to control silverleaf whiteflies, reducing pesticide use and promoting environmentally friendly pest management. The system involves using non-stinging wasps to feed on the whiteflies and is being tested in commercial greenhouses.
Researchers at Duke University have identified the genetic variation behind wild mustard plants' varying levels of spicy chemical production. This difference affects their ability to survive in environments with changing conditions. The study sheds light on how complex traits are shaped over thousands of years.
The Entomological Society of America has selected three new entomologists, Dr. Elizabeth F. Beckmeyer, Dr. Steve Clement, and Dr. Victoria Y. Yokoyama, as Honorary Members for their 20+ years of significant involvement in the Society's affairs. They will be honored at the Awards Ceremony in Knoxville, Tennessee this November.
Researchers have identified an enzyme responsible for forming the 'mating plug' in male Anopheles mosquitoes, which can be inhibited to prevent reproduction. The approach uses a chemical compound that targets this enzyme, making it a potential tool against malaria transmission.
A new species of green lacewing, Semachrysa, was discovered in the Malaysian rainforest using online images. The insect's distinctive wing pattern was its most notable feature.
A series of 18 articles in ZooKeys examines recent advances in imaging systems, data gathering techniques, and collaborative approaches to digitization. These efforts aim to create a global virtual natural history museum, providing unprecedented access to biodiversity records and research opportunities.
Researchers discovered that vampire jumping spiders prefer female mosquitoes with blood-fed abdomens over other insects due to their distinctive antennae. The spiders can identify the females by their antennae even when they are too small to be seen, and this unique ability may play a crucial role in their prey classification process.
Researchers at Georgia Tech discovered that mosquitoes can fly through rain due to their strong exoskeleton and low mass. The insect's ability to absorb impact forces from raindrops allows it to survive collisions, with the help of its legs and wings.
Scientists found that giant insect sizes decreased after birds evolved around 150 million years ago. Insect size was linked to oxygen levels over hundreds of millions of years, with high oxygen concentrations allowing larger insects during the late Carboniferous period.
Researchers discovered that hawkmoths can detect minuscule differences in humidity near flowers to determine if they have enough nectar. This allows the moths to quickly evaluate flowers and avoid wasting energy on unprofitable ones.
The John Innes Centre receives Grand Challenges Explorations grant for a groundbreaking research project aimed at developing new ways of protecting crops from insects and associated diseases. The project, led by Dr Saskia Hogenhout, involves generating whitefly-resistant plants using RNAi molecules.
Scientists at FAO and IAEA developed a larval rearing unit for efficient mosquito mass-rearing, promising to boost the Sterile Insect Technique's effectiveness. The new system maintains water temperature stability and minimizes evaporation, allowing normal larval development and reducing labor costs.
Fossil discovery reveals ancient flea-like animals that could feed on dinosaur skin, leading to a painful bite experience. The creatures, similar to modern fleas but much larger, had flat bodies and long claws.
Professor Eamonn Keogh's wireless bug sensor technology uses a text message system to alert farmers about harmful insects, reducing pesticide costs and increasing profits. The Vodafone Americas Foundation Wireless Innovation Project award recognizes innovative solutions for social good.
A statewide assessment of stonefly diversity in Ohio has revealed at least 102 species, with many adapted to survive warm summer water temperatures. The study's findings will inform conservation efforts, prioritizing rare and threatened species like the Atlantic Needlefly.
Simple insect bites often resolve on their own without treatment, but over-the-counter remedies have limited efficacy. Antihistamines and steroids are not backed by strong evidence for treating itching and inflammation.
Researchers at the University of Georgia discovered a protein in black fly saliva that inhibits clotting and reduces inflammation. This finding has potential applications for treating patients recovering from heart attacks and developing a vaccine against river blindness.
A new study at Rice University reveals that plant defenses are enhanced when plants are touched, triggering an insect defense response. This response is mediated by the plant hormone jasmonate, which plays a critical role in initiating plant defenses against insect-eating insects and some fungal infections.
A UCSB study found that 70 percent of the most damaging non-native forest insects and diseases in US forests originated from imported live plants. The study emphasizes the importance of improving bio-security measures to mitigate the environmental impact of global trade.
A multi-year study by WSU researchers found no significant differences in grape and wine quality due to grafting, with climate and vintage being the dominant factors. The experiment tested six commercial rootstocks against own-rooted vines for three popular varieties.
A new study has shed light on how species and their natural enemies have chased each other across continents for millions of years. The research used population genetics to analyze the DNA of small insects and their wasp enemies, finding that some plant-eating insects have outrun their predators for hundreds of thousands of years
Plants can detect unhealthy neighbors through odor perception, inducing resistance to disease and pests. A new study found that exposure duration and concentration of odor compounds significantly impact this process.
Four new species of Panops spider flies have been described from Australia, characterized by their jewel-like appearance and ability to feed on nectar. The larvae of these flies are internal parasites that prolong the life of juvenile spiders by living inside them for years, ultimately leading to the spider's death.
Researchers found low densities of key insect pests in Illinois corn and soybean fields due to environmental conditions and widespread use of Bt-corn hybrids. This practice goes against integrated pest management advice, leading to concerns about insect resistance.
The Mercyhurst research aims to assess the hemlock woolly adelgid's cold tolerance and predict its impact on Eastern US forests. The project will monitor environmental conditions across 20-25 hemlock stands in Pennsylvania, identifying factors that affect winter survival.
A Purdue University study reveals that hermetic grain storage bags work by depriving weevils of water through metabolic processes, not just oxygen deprivation. The bags' effectiveness in reducing insect infestations has saved West and Central African farmers hundreds of millions of dollars.
A new species of tiny, black and orange grasshopper-like insect has been found in the Toledo District of southern Belize. The insect, Ripipteryx mopana, is only 5mm long and uses its large jumping hind legs to escape predators.
Plants use their internal clocks to anticipate and prepare for insect attacks, increasing production of defense hormones like jasmonate. This allows them to resist damage from caterpillars and other pests.
Research suggests that zebra stripes are the least attractive pattern for voracious horseflies, potentially explaining their evolution. The study found that narrower stripes were less appealing to flies, with striped patterns attracting fewer insects than white or dark models.
A new study suggests that native insect parasitoids in California can suppress the light brown apple moth population, with one species accounting for over 80% of larval parasitism rates. Further research is needed to determine the effectiveness of these natural enemies in controlling the pest's spread.
A fossilized bushcricket from the Jurassic period has revealed a new species' musical call, shedding light on the acoustic environment and potential auditory capacity of other animals. The song was reconstructed using biomechanical principles and is believed to have been used for long-distance communication.
Scientists implanted a miniature biofuel cell into False Death's Head Cockroaches, converting trehalose and oxygen into electricity. The device operates intermittently due to low energy output, but could power microdevices in the future.
A study by Max Planck scientists found that available scientific information on genetically modified insect releases is highly restricted. They call for clear and accurate descriptions to be widely circulated before releases, particularly if mosquito species are involved.
A new collection of articles in PLOS Neglected Tropical Diseases examines the use of genetically modified (GM) insects for controlling infectious diseases. The articles discuss technological advances, regulatory frameworks, and societal dialogue necessary for widespread application.
A new species of horse fly, Scaptia (Plinthina) beyonceae, has been discovered in Australia and named after Beyoncé. The fly's golden abdomen makes it a unique specimen. Horse flies are important pollinators of plants, acting like hummingbirds during the day.
Two studies by USC Marshall School of Business professor Scott Wiltermuth found that synchronized physical activities can foster aggression and obedience, potentially leading to destructive outcomes. Participants who moved in sync with their groups or authority figures performed better in tasks that involved harming others.
Researchers at Case Western Reserve University developed an implantable biofuel cell that converts a cockroach's internal chemicals into electricity. The device can provide enough power to control the bug or transmit sensor data, and has shown promise for long-term use without harming the insect.
A new study has discovered well-preserved fossil insect ears from 50 million year-old crickets and katydids, shedding light on the evolution of insect hearing. The findings suggest that these insects evolved their supersensitive hearing long before bat predators came to be.
Researchers at the Wyss Institute have developed a new material called Shrilk that replicates the exceptional strength and versatility of insect cuticle. With its unique mechanical and chemical properties, Shrilk could be used to replace plastics in consumer products, suture wounds, and serve as scaffolding for tissue regeneration.
Researchers discovered plant bedding with insecticidal properties at a 77,000-year-old South African rock shelter. The bedding, made from sedges and rushes, was used to repel mosquitoes and other insects.
Researchers sequence the two-spotted spider mite's genome, revealing genes capable of detoxifying pesticides and plant toxins. This breakthrough sheds light on how these pests counteract plant defenses and provides new insights for developing targeted pesticides.
The sequenced spider mite genome provides insights into its feeding frenzy, pesticide resistance, and web-making abilities. The study reveals the genetic basis for these traits, including the acquisition of bacterial genes that enhance digestion and detoxification.
Invasive false brome grass has spread rapidly in Oregon, thanks to its ability to evade fungal and mollusk enemies, with generalist insects being the primary attackers. The grass now threatens ecosystems and forests across the state, highlighting the need for public awareness and cleanup efforts to control its spread.
A new analysis of ancient midge larvae reveals that the region was significantly cooler than expected during the early Holocene epoch. The findings offer a detailed record of temperature variation over the last 10,000 years in Alaska and have important ecological and societal implications.
Scientists identified a molecule that manipulates plant development to favor insect hosts, increasing leafhopper reproduction and pathogen transmission. This phenomenon demonstrates the extended phenotype, where an organism's impact on its environment extends beyond biological processes.
New research from NC State University sheds light on how blow flies survive when buried underground during their development. The study found that blow flies can survive burial and provides additional information for murder investigations, helping forensic entomologists determine body burial times and potential relocations.
Scientists have developed two new Bt toxins, Cry1AbMod and Cry1AcMod, to overcome resistance in pest insects. These novel toxins are effective against five resistant species, including the diamondback moth and European corn borer.