Articles tagged with Insects
Researchers discovered all-female, forest-dwelling drywood termite colonies in Japan and found they evolved through human-assisted hybridization, leading to stronger offspring and double breeding. This can outcompete incumbent species, posing a risk to homeowners with drywood termite infestations.
Researchers discovered that Chaoborus larvae adjust their air-sacs' volume by changing the pH level, utilizing resilin's elastic properties. This unusual adaptation enables them to float neutrally buoyant in water.
A 100-million-year-old cockroach fossil provides insights into its sensory organs, which suggest the species lived in bright environments during the day. The study found that the extinct species had well-developed eyes and a unique pattern of receptors on its antenna, indicating it may have used these to communicate between sexes.
Researchers at Rice University have discovered a new insect species, Neuroterus valhalla, alongside its fully sequenced genome. The tiny wasp spends most of the year in a crypt and has unique life cycle habits.
Researchers at North Carolina State University have discovered a unique jumping behavior in the larvae of a species of beetle, where they curl into a loop and leap forward. The mechanism behind this behavior is distinct from other insects that rely on a latch-mediated spring actuation mechanism.
Researchers found that trees that induce defense mechanisms against herbivores attract more predators, reducing insect abundance. This defense is critical for tree canopies and promotes biodiversity.
A new study found that farmers are extremely knowledgeable about pollinators and have taken initiatives to protect insects on their farms. However, more flexible funding options and cooperation between research and practice are needed to realize their full conservation potential.
Research found that cacao agroforestry systems support unique bird species in tropical dry forests, while bats are more abundant in these areas than in nearby forests. This suggests that cacao farms can serve as biodiversity-friendly oases, providing food and refuge for birds and bats.
Scientists have measured the speed of Candidatus Liberibacter asiaticus, a bacterium causing citrus greening disease. The bacteria can colonize a tree in around 80-100 days, faster than symptoms appear, making it difficult to control.
A study by UC Riverside scientists has identified a set of genes on a single chromosome associated with the production of male or female offspring in ant colonies. The discovery sheds light on the complex relationships between genetics and environmental factors in shaping the sex ratio of these societies.
A citizen science project found urban growers in Brighton and Hove harvested 1kg of insect-pollinated fruit and vegetables per metre squared, comparable to conventional farming. Urban farming benefits biodiversity and human health while offering sustainable and productive alternatives.
Scientists have discovered new targets for insecticides by analyzing the structure of potassium channels in Drosophila. The study provides a detailed map of the channel, enabling the design of highly selective and safe insecticides.
Researchers at Lund University have successfully detected insect DNA in the air, offering a novel approach to monitoring terrestrial biodiversity. This method, known as airborne DNA metabarcoding, allows for the detection of multiple species from single samples and could accelerate biodiversity surveys.
Current climate models underestimate species extinction rates by neglecting the complexities of ecosystems. Researchers used piñon pine data to model how climate affects tree populations and distribution, finding indirect effects that cannot be captured by climate-only models.
New research shows that bumblebees waste no time enjoying flowers but instead learn the bare minimum about where to land and find food. Bees extract just the necessary information from artificial flowers, suggesting a simple, low-effort form of learning is sufficient in some situations.
Researchers investigated how providing information about alternative feedstuffs impacts consumer preferences. They found that consumers are more likely to prefer insect-based feed due to sustainability claims. The study emphasizes the importance of labelling and transparency for the acceptance of these alternatives.
Research reveals Japanese macaques in Kamikochi feed on aquatic insects and molluscs, supplementing their winter diet with high-nutritional value food sources. The unique behavior is attributed to the region's topography and hydrological environment, providing a stable food source for the macaques.
Researchers discovered a new species of parasitoid wasp that forms star-shaped cocoon masses suspended by threads up to 1 meter long, providing protection against natural enemies. The structure can accommodate over 100 cocoons and is believed to help the wasps survive during critical periods.
A previously unknown glacial relic, the Alpine rose leaf-miner moth, has been discovered in the Alps. The caterpillars specialize on the rust-red alpine rose, avoiding it like most other moths and butterflies due to its toxicity.
A team of researchers developed a sophisticated study design to investigate the effects of climate change and land use on species diversity. The design allowed for the selection of 179 study sites across Bavaria, taking into account various factors such as habitat size, distance to other habitats, and land use patterns.
The 74th APS Division of Fluid Dynamics Annual Meeting featured presentations on COVID-proofing daily life, kimchi physics, and extreme heat waves. Researchers also discussed advancements in fire-fighting trees and the science behind jellyfish engineers.
A new study reveals that climate change is altering the balance of microbes in nectar, making it less palatable for bumblebees. This could lead to a decline in pollinator populations and affect human health by reducing fresh food availability.
A new study reveals that Asian honeybees use distinct signals to alert nestmates of giant hornet attacks, employing a sophisticated communication system. The research found that these signals are designed to get the attention of colony members and convey a sense of urgency.
A team of researchers from the University of Münster has identified a second barrier in the fly brain, formed by glial cells that regulate molecule distribution. The discovery is essential for understanding nervous system functioning and may have implications for human neural health.
A University of Cambridge study reveals that periodic caterpillar outbreaks improve lake water quality but increase CO2 emissions by altering nutrient cycling and favouring greenhouse gas-producing bacteria. This phenomenon is likely to worsen as climate change expands the insects' range, threatening northern forests.
A recent USDA study analyzed two centuries of alien species discoveries to estimate the rate of new insect arrivals and potential future invasions. The research found that efforts to reduce biological hitchhiking on live plant imports have been successful, but a significant number of Hemiptera insects remain undetected.
A team of researchers has reconstructed the evolutionary history of dragonflies and damselflies, determining when they first emerged around 200 million years ago. The study provides the most comprehensive divergence time estimates for Odonata to date.
Researchers found that honeybee colonies modify their social interactions and movement patterns in response to parasite infestations, increasing social distance between young and old bees. This adaptation helps reduce the spread of diseases while maintaining beneficial social behaviors.
Scientists discover 28 new species of Trigonopterus beetles, including T. corona, named after the coronavirus and Star Wars characters. The discovery fills a gap in understanding Sulawesi's geological history and biodiversity.
Researchers discovered that an insect digestive enzyme removes sugar from a plant defense compound, promoting larva growth on dandelion plants containing the compound. This process also leads to the larva avoiding plants with high concentrations of the compound.
Dampwood termites exhibit brain changes in anticipation of cognitive demand, specifically in visual processing regions. This experience-expectant plasticity is seen before the individual molts into a king or queen, highlighting the insects' adaptability and unique role within the colony.
Researchers are developing insect-like robots for agriculture, mining, and space exploration using dynamic force sensing and agile movement. The goal is to create robots that can navigate difficult terrains and interact safely with humans.
A new study published in Nature Communications finds that insect biomass is higher in warmer temperatures, while diversity declines in agricultural environments compared to semi-natural habitats. Researchers recommend increasing green spaces in urban areas and promoting forest habitats to mitigate climate change.
A severe upsurge of desert locusts in 2019-2020 caused $3.4 billion to $10.21 billion in monetary losses and severe acute food insecurity for over 3 million people in Pakistan. The authors suggest improving the prevention system, developing compensatory measures, and increasing the use of alternative pesticides.
Researchers found that great tits nesting near healthy oak trees advance their egg-laying timing more than those near unhealthy oaks. The variation in timing is linked to the health of nearby oak trees and reveals patterns masked by population-wide studies.
A new fly species, Scenopinus jerei, has been officially described from Finland, belonging to the primitive and species-poor family of window flies. The species is found in boreal forest habitats and is widespread but rare in Finland, with its larvae preying on other insects.
A new study found that global light pollution has increased significantly over the past 25 years, with the true increase potentially being much higher. The study, led by the University of Exeter, reveals that the transition to solid-state LED technology has masked the impact of light pollution in many regions.
Researchers at UC San Diego develop precision-guided sterile insect technique (pgSIT) to control mosquito populations. The system uses CRISPR to alter genes linked to male fertility and female flight in Aedes aegypti, reducing disease transmission.
Researchers found that insect protein has great potential to reduce global warming associated with food consumption in Europe, especially when used in broiler meat production. Using edible insects or low-value food industry side stream products can increase the carbon footprint benefits of using insect protein over soybean meal protein.
Researchers tracked insect evolution with major Pacific Ocean currents, revealing species adapted to different conditions. Genetic analysis of ocean skaters found distinct variations among species, mirroring changes in currents and climate.
A study published in Biology Letters reveals a drastic fall in the number of aquatic insects in the Paraná River basin due to dam construction. The research, conducted over 20 years, found that dams alter the nutrient balance and provide a clearer water environment, making insects more vulnerable to predation.
A study found that palm phytoplasmas in Florida were transmitted by the American palm cixiid bug, originating from Jamaica. The research revealed a network of movement across the Caribbean basin, with distinct groups of insects found in different countries.
The study reveals that climate change affects the rate of decomposition and insect contributions to deadwood, releasing approximately 10.9 giga-tons of carbon worldwide annually
Researchers have developed a way to bottle the 'smell of fear' produced by predators to repel and disrupt destructive insects. The odor blend can be used in essential oil diffusers to spread over time across gardens or fields, offering a natural alternative to pesticides.
Rare fossils from the Cambrian period confirm the presence of an ancestral frontal domain in arthropods, which gives rise to crucial neural centers involved in decision-making and memory. The discovery also sheds new light on the evolutionary origin of visual systems in arthropods.
A study by Osaka City University reveals that urban lighting and heat delay insect hibernation, allowing insects to enter hibernation up to 3 weeks later than in rural areas. The findings suggest that increased nighttime light and heat from urban areas interfere with the natural photoperiodism of insects.
Researchers studied insect olfactory system to improve repellent design and drug screening. They found that chemoreceptor tuning depends on ligand-binding subunit identity, revealing diverse molecular mechanisms. These findings have potential applications in 'mammalian' chemogenetics and insect-based research.
The University of Exeter has developed a virtual safe space tool called BEE-STEWARD to test different land management techniques for bumblebee survival. The tool provides a computer simulation of bumblebee colony survival in a given landscape, allowing researchers and farmers to predict the impact of their decisions.
Researchers found that when a weevil eats before an aphid, it enhances plant anti-pathogen defense responses, but reduces nutritional quality. In contrast, if the aphid eats first, it reduces anti-pathogen defenses and increases virus spread.
A landscape mosaic of natural habitats and small-scale cultivated areas can promote biodiversity on a large scale. Contrary to organic certification, diverse cultivation can double species numbers and improve biological pest control.
A recent review from Oregon State University suggests that agricultural pollution is the cause of 48% of water-quality impairment in US surface waters. The study recommends greater buffer zones around bodies of water and more consistent enforcement of water protection regulations to reduce pollution.
A new study published in PLOS Biology elucidates a female sex pheromone pathway in cockroaches, revealing that blocking an enzyme reduces pheromone production and female attractiveness. The study provides valuable insights into insect sexual behavior regulation.
Researchers discovered that individual taste neurons in fruit flies can detect compounds from multiple taste categories, influencing feeding decisions. The team found that single-taste neurons are capable of responding to more than one tastant category, and that a single tastant category can activate multiple classes of taste neurons.
A recent study found that tomato fruits can communicate with the rest of the plant through electrical signals, warning it of caterpillar attacks. This phenomenon may allow for early detection of infestations and more targeted control measures.
Insect pests like the spruce budworm can increase mortality rates of threatened ungulates by altering forest understory composition. This study reveals a positive association between moose density and deciduous vegetation, which in turn supports higher wolf populations and caribou mortality.
Researchers have been exploring the use of drones in insect pest management, with new technologies being developed to detect and control mosquito populations and crop-damaging insects. The Entomological Society of America has published a special collection showcasing the potential of drone technology in this field.
West Virginia University researchers are working on a project to create a tomato that requires little to no pesticides. They aim to identify pest-resistant genes and make those new varieties available to breeders and farmers. The goal is to develop an environmentally friendly and sustainable crop that reduces pesticide use.
Flies use their antenna to smell ammonia, which helps them find food sources and navigate. A new type of odor receptor, Amt, has been identified that allows insects to detect ammonia, and could lead to effective ways to block it.
A new UC Riverside study reveals geckos can still capture crickets with 77% accuracy even after losing their tails. The researchers found that geckos were slower and less agile without tails, but retained a surprising retention of accuracy in capturing prey.
The nationwide monitoring programme found significant pesticide contamination in over 80% of water bodies, exceeding governmental thresholds. The loss of biodiversity can only be halted if the environmental risk assessment of pesticides is radically revised.