Research on insects and their role in nature. Covers disease-carrying bugs, insect evolution, wildfire effects, and sensory circuitry.
Researchers found that moths in the subfamily Arctiinae mimic wasps to evade birds and other predators. However, their nearly perfect resemblance is not due to learning from experience, as previously thought, but rather to deceive actual wasps into thinking they are part of the same species, thereby avoiding attack.
Researchers found that man-made disruptions in natural flow patterns contribute to reductions in both the abundance and diversity of fish and insects. The study provides a scientific basis for establishing ecological flows in North Carolina's major river basins.
Researchers sequenced over 1,000 stick insect genomes to study early phases of speciation, finding that genetic differences across the genome are crucial for distinguishing between species. The study suggests that rapid reversals of speciation can occur when distinct species cross paths again.
Researchers found that DEET and PMD-based sprays were the most effective at repelling Aedes aegypti mosquitoes, while wearable devices showed little to no effect. The study tested five wearable devices and five spray-on repellents, concluding that consumers should seek out the most effective products to avoid mosquito bites.
Researchers found that male flies are attracted to specific flash frequencies from female wings, with a preference for young females' slower wing beats of 178Hz. The study suggests that wing movement contributes to mate selection and may be a common phenomenon in other insects.
Researchers found that hemocyanin, an oxygen-transporting protein, is highly expressed in Asian citrus psyllids infected with the bacterium causing citrus greening. The protein may signal an immune response to infection and could be harnessed to help control disease spread.
A new study found that distantly related carnivorous plants, including pitcher plants, share similar genetic changes associated with their ability to digest insects. The research suggests that the evolutionary routes to carnivory may be limited and that these plants have co-opted ancient proteins to create digestive enzymes.
The release of genetically modified insects for pest control could lead to contamination in organic crops, harming farmers and eroding consumer confidence. International trade could be disrupted if detected contaminants are met with import bans.
Researchers discovered that fruit fly steering muscles are divided into two types, with tonic muscles always in use for fine-tuned adjustments and phasic muscles used for rapid movements. This unique organization enables efficient flight control.
A recent study published in the Journal of Agricultural and Food Chemistry found that stink bugs can contaminate wine with stress compounds, affecting its quality. The researchers discovered that pressing is a key step in releasing these compounds, and that limiting stink bugs to three per grape cluster could improve wine quality.
University of California Riverside researchers identify amino acid taste receptor Ir76b playing key role in insect identification of umami taste. The discovery sheds light on insect food choice and potential targets for controlling insect populations.
The Venus flytrap captures insects to extract nutrients and energy. Researchers found that the plant produces additional energy by oxidizing amino acids from its prey.
Researchers discovered that a specific bacterial species in moth gut microbes produces an antimicrobial peptide called mundticin KS, which defends its host against pathogens and promotes symbiosis. This finding has implications for agriculture and health, potentially leading to new biocontrol strategies and novel antibiotics.
A Tulane University study reveals that using cockroach bait alone can significantly reduce asthma symptom days in children, with 47 fewer days reported over the course of a year. The intervention also led to lower numbers of unscheduled clinic visits and emergency room trips.
Researchers found that male fruit flies consistently choose the female mate that would produce the most offspring, even when impaired senses were removed. The cognitive process of making rational choices is a unique human trait, but this study provides evidence that fruit flies can also make such decisions.
A decade-long study in southern UK reveals an annual mean of 3.37 trillion insects migrating above the region, comprising 3200 tons of biomass. The majority of migration occurs during daytime, with intensity greatest on warm days.
Scientists have measured mass insect migrations in UK skies, with up to 3.5 trillion insects migrating annually over southern England. The movements are comparable to significant oceanic migrations and provide essential ecological services, including pollination and predation of crop pests.
Researchers at Goethe University Frankfurt have discovered a class of peptides that can kill insect larvae, producing up to four times more compounds than previously thought possible. The peptides, known as rhabdopeptide/xenortide peptides (RXPs), are produced by bacteria and play a crucial role in infection.
Researchers discovered that jumping water striders adjust their leg movements to prevent the water surface from breaking, allowing them to achieve maximum jump speeds. By studying the biomechanics of these near-vertical jumps, scientists built a mathematical model to explain the behavior and verified its predictions with actual data.
Common insecticides like neonicotinoids significantly reduce populations of predatory insects in North American and European farming systems, posing a threat to crop yields. The use of integrated pest management strategies is recommended to conserve beneficial insect species.
Scientists from Utah State University and US Environmental Protection Agency report significant shifts in insect species frequencies relative to historical conditions. Over 70% of species have altered habitats, with nearly all historically common species found in fewer streams and rivers than expected.
Scientists have developed new retroreflective materials inspired by insect compound eyes, offering improved color and effectiveness for safety measures. These new materials can be adjusted to change color and brightness, reducing fading over time.
A pioneering study of invertebrates has uncovered 1445 viruses, including several new families, revealing people have only scratched the surface of the world of viruses. The research, led by Professor Edward Holmes, suggests these viruses have been associated with invertebrates for potentially billions of years.
Using swarms of sensor-equipped biobots and remote-control technology, researchers create detailed maps of unfamiliar environments. The mapping process involves releasing the biobots into a defined area, which are then stitched together to form a comprehensive map, useful for locating survivors after a disaster.
A recent study by researchers at the University of Bristol found that LED lights are less attractive to nuisance insects compared to traditional filament lamps. The study, funded by the Natural Environment Research Council and Integral LED, used customised traps at 18 field test sites across south-west England.
The black blow fly genome sequencing project provides a major resource for researchers studying unusual or dangerous insects. The study may benefit human health by advancing wound care and estimating postmortem interval, while also improving pest management through better understanding of insecticide sensitivity and resistance.
Scientists have developed machine learning algorithms to recognize insect feeding patterns causing devastating damage worldwide, including citrus greening through probing on host tissues. The technology enables rapid screening and disruption of pathogen transmission, benefiting agriculture, livestock, and human health.
Researchers found that tooth shape influenced diet and feeding biomechanics, with selection favoring maximum damage, not just force or energy. The study used 3D-printed replicas of ancient mammal teeth to test the impact of different diets on early mammals.
A study by University of Nottingham researchers found that giant hissing cockroach species adapt to either 'lover' or 'fighter' strategies for winning females, with Flat-horned cockroaches being non-aggressive and focusing on sneaky mating, while Wide-horned cockroaches are aggressive combatants.
Scientists analyzed insect feeding damage to thousands of leaf fossils from Patagonia, Argentina, and found evidence that ecosystems there recovered twice as fast as in the United States. The findings suggest that Patagonia's distance from the impact crater in Mexico may have contributed to the rapid recovery of insect diversity.
Research finds that insects can contribute well-rounded meals with essential minerals like calcium, copper and zinc. Crickets have higher levels of iron than other insects, making them a promising source of this crucial nutrient.
Brazilian researchers have identified a new species of dragonfly named Erythrodiplax ana, characterized by its brown spot on each wingtip and bluish waxy body coating. The discovery highlights the importance of urban areas as habitats for biodiversity, with the species found near a spring used to draw off water in an urban area.
Researchers study water strider legs to understand how they can walk on water without displacing it, shedding light on a long-standing scientific mystery. By analyzing the shadows cast by their legs, scientists have confirmed key parameters that allow them to perform this remarkable feat.
Researchers will investigate how adaptations in one insect species allow others to follow, generating new biodiversity. The study focuses on the apple maggot fly and its parasitoid wasps, exploring how shifting life histories impact species interactions and ecosystem diversity.
A new study published in Nature found that plant diversity can suppress insect pests by being variable, not just low quality on average. Researchers discovered that bugs have narrow ranges of nutrient levels where they flourish, making it easier to control pests.
Researchers at UCR are using big data to track mosquitoes, predict outbreaks, and understand insects. The new program will train scientists and engineers to exploit the power of big data to improve human health and alleviate food waste.
Researchers have discovered two new species of mayflies in Turkey, expanding the country's known insect diversity. The study, published in ZooKeys, provides an annotated catalogue of 157 mayfly taxa, including 24 endemic species to Anatolia.
Researchers discovered that three citrus plants - Citrus reticulata, Swingle citrumelo, and Murcott mandarin - produce essential oils that repel Diaphorina citri, the insect that transmits huanglongbing. These compounds may act as repellents, making the plants less attractive to D. citri for ovipositing purposes.
A study has found that the North American jewelled spider fly genus, known for its brilliant colouration, is a deadly predator of tarantulas. The flies' larvae are particularly insidious, inserting themselves into tarantula hosts and killing them by bursting out of their abdomens.
The bacterium causing citrus greening disease triggers a gut-wrenching immune response in the insect vector, Asian citrus psyllid. Researchers suggest targeting cell death in the midgut to prevent bacterial spread.
Researchers found that urban warming negatively affects tree growth and photosynthesis, regardless of pest presence. Trees at warmer sites had less trunk growth, accounting for more tree biomass.
A new study reveals that increased temperatures from global warming can collapse symbiotic gut bacteria in insects, leading to severe fitness defects and death. The research highlights the impact of rising temperatures on organisms living in symbiosis, sparking deleterious chain reactions.
A new study estimates that invasive insects globally incur at least US$70 billion in annual costs to goods and services, while also resulting in significant health expenses. The researchers stress that these figures are likely underestimates due to the lack of research on the topic in many regions.
Researchers have developed genetically modified male flies that produce only males when mating, suppressing New World screwworm fly populations. The technique could increase the efficiency of sterile insect technique programs and provide a cost-effective solution for controlling livestock pests in tropical regions.
Researchers at Michigan State University have developed a genetic combination that allows plants to both grow and defend themselves from insects and disease. This breakthrough has significant implications for farmers trying to increase crop yields and feed the world's growing population.
The moth species Heliothis subflexa has a specialized diet of Physalis fruits, which provides it with direct and indirect protection through the presence of withanolides. These compounds increase larval growth and immune system activity while also protecting against bacterial infections caused by Bacillus thuringiensis.
A study published in Nature found that diverse ecosystems populated by many species provide higher levels of ecosystem services, including food production, soil development, pest control, and climate regulation. The research highlights the importance of maintaining species-rich ecosystems for human well-being.
The team's genome sequence will stimulate new research in molecular studies of insects and may lead to improved pest management methods. The sequenced genome provides insights into the tobacco hornworm's physiology, particularly its unique ability to evade insecticides.
The sequencing of the tobacco hornworm's genome marks a major milestone in understanding insect biology. The genome provides valuable insights into the insect's physiology, biochemistry, and molecular biology, with potential applications in developing new methods for insect pest management.
Researchers analyzed thousands of insect species records to find areas of endemism, where unique animals and plants reside. The study highlights the importance of considering smaller organisms like insects when categorizing ecosystems.
Researchers have successfully reared the larvae of a parasitic fly on chicken blood, paving the way for a new method to control its population. This breakthrough could be key to saving critically endangered birds like the mangrove finch in the Galapagos Islands.
Researchers found that higher-income neighborhoods had more arthropod species, likely due to the presence of diverse plants. Despite individual homes with minimal outdoor plant life, these households still supported high insect diversity due to surrounding neighborhood features.
A USGS study reveals that video surveillance is the most effective method for detecting animals flying around solar power towers. Most observations involve insects, with only a handful of birds and bats seen near the towers.
A study by UC Riverside researchers found that bed bug shed skins retain four pheromone compounds that can be used to detect and combat infestations. The findings suggest the development of small, inexpensive monitor traps to catch living bed bugs at early stages of infestation.
Researchers identified a key gene in vinegar flies responsible for their waterproof coating, which could provide a new way to control insect pests threatening agriculture and humans. By knocking out this gene, the insects lose their waxy coating and become more vulnerable to environmental stress.
A rare 50-million-year-old Baltic amber discovery shows an ancient insect, similar to a walking stick, escaping its skin and fleeing into freedom as tree sap flows over the remaining exoskeleton.
Hydroelectric dams can have devastating effects on aquatic insect populations and the food webs they support. Hydropeaking, which generates artificial tides to meet power needs, is a significant contributor to these environmental impacts.
Dr. Guanyang Zhang and colleagues describe 24 new assassin bug species from over 10,000 specimens, shedding light on the insects' behavior and taxonomy. The discovery highlights the importance of natural history collections in uncovering new species.
Researchers have developed a new method to observe and identify male and female tsetse flies using near infrared still photographs and time-lapse video. This technique could make the Sterile Insect Technique more efficient by sorting males and females earlier, allowing for easier sterilization and control of the fly population.
Flying insects have been found to move through the air in ways that contradict traditional aerodynamic theories used for airplane flight. Researchers at New York University discovered a new law that explains how insects generate thrust and manage drag, allowing them to double their flight speed with less effort.