Articles tagged with Insects
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Researchers identified a kissing bug in Delaware with the Chagas disease-causing parasite Trypanosoma cruzi. Entomologists confirmed the insect's presence and found it was infected with the parasite, which can lead to serious heart problems if left untreated.
A University of Bonn study found that leaving some weeds between crops helps combat pests. Intercropping with wildflowers also attracts beneficial insects, making it harder for weeds to grow and pests to infest the field. The study suggests tolerating residual weeds as a farming practice.
A study found that mosquitoes in Greater Paris can transmit five arboviruses within different time frames, with West Nile virus transmitted in as little as three days. The results highlight the importance of increased surveillance and control measures to prevent disease outbreaks during the Olympic Games.
A recent study reveals that some honeybees exhibit superior learning abilities compared to others, which may be attributed to distinct gene expression patterns in their brains. The research explores the behavioral and genetic underpinnings of individual differences in learning performance among Apis mellifera.
A noncoding gene has been identified as the deciding factor in determining sex in Argentine ants, with a specific genomic region being crucial to this process. The gene does not encode a protein but rather produces an RNA that influences sex determination.
Researchers in Italy have successfully monitored invasive stink bugs using drones and AI, reducing disruption and improving data capture. The system achieved a 97% detection accuracy, enabling precise forecasting models for integrated pest management strategies.
Researchers optimized the release pattern of Telenomus podisi, a parasitoid wasp that neutralizes the Brown stink bug, for effective biological control in soybean crops. By analyzing the dispersal range and releasing points, they found that intervals of 30 m can assure sufficient control of stink bugs.
A captivating new species of ant has been found with a metallic blue coloration, adding to the rich diversity of the Eastern Himalayas. The discovery was made during an expedition to resurvey biodiversity in Arunachal Pradesh's Siang Valley.
A new study found that human impacts on waterways are accelerating decomposition rates, releasing more carbon dioxide into the atmosphere and disrupting food chains. The study suggests that reducing human activity could improve water quality and help fight climate change.
Researchers investigate gene preservation after loss of male traits in stick insects and find that genes involved in multiple biological processes are more likely to be maintained. This suggests that the molecular ground plan for the lost male reproductive process may persist due to pleiotropic effects on other traits.
Researchers found predictable, repeatable evolutionary patterns in populations of stick insects, with fluctuations in color frequency influenced by bird predation and natural selection. The study provides evidence for the existence of 'up-and-down' dynamics in evolution based on standing genetic variation.
Insects like fruit flies use simple, efficient systems to recognize odors. Researchers found that paired olfactory receptor neurons in fly antennae facilitate computations in the central brain through pre-processing stage.
A study by the University of Göttingen investigated regional differences in bird diversity within cocoa agroforestry systems in Peru. The research team found that biodiversity decreases with increasing distance from natural forests, with greater richness of species found in humid subtropical forests than in dry tropical forests.
Researchers found spider webs match acoustic particle velocity for wide range of sound frequencies. Spider silk responds to air particles in a sound field, not just sound pressure, and may inspire new microphone designs.
Researchers found that tiger beetles respond to bat echolocation by producing their own ultrasonic signal, which they believe is a defense mechanism. The beetles' defensive chemicals are not effective at deterring bats, but the sound itself may be used to trick bats into thinking they are noxious.
A UK survey found that only 13% of respondents would be willing to regularly consume insects, highlighting the need to overcome the 'disgust factor' for entomophagy to become mainstream. The study suggests that incorporating insect flours into processed foods may help reduce disgust and increase consumer acceptance.
A new study finds significant variation in pollinator attractiveness among annual flower cultivars, with some varieties drawing in more insects than others. Begonia and impatiens cultivars were found to be particularly attractive to bees and other pollinators.
Researchers at Iowa State University are developing an AI tool that can identify agricultural pests from photos, including insects and weeds. The project will use a supercomputer to train ensemble models that can analyze images quickly and provide pest-control strategies.
Recent technological breakthroughs enable global insect surveys using sound recordings, images, radar, laser beams, and DNA analysis. This allows for new insights into insect trends and species identification without relying on experts or killing insects.
Researchers have identified 12 new quinoline and isoquinoline alkaloids with anti-inflammatory properties and the ability to reduce renal fibrosis in cell cultures. These findings could provide a lead for developing treatments for chronic kidney disease, according to the study published by the American Chemical Society.
Fireflies are sensitive to environmental factors such as temperature and precipitation, with changing climatic trends impacting breeding cycles and habitat quality. Urban growth and light pollution also pose significant threats, while certain agricultural practices can support firefly populations.
Research reveals that hornets are the primary pollinators of two Angelica species, contradicting the notion that these plants have generalist pollinators. This discovery impacts ecological research and conservation efforts by highlighting the importance of hornets as pollinators.
A parasitic wasp has evolved to perfectly target a common fruit fly pest, demonstrating key principles of ecologically driven evolution. The Trichopria drosophilae wasp overcomes the pest's defenses by producing venom and specialized cells that speed up digestion and increase nutrition for its young.
In Brazil, around 90% of sugarcane area uses natural enemies like microorganisms and biochemicals for pest control. Researchers have registered over 629 biological products, with a steady increase in use year after year.
Researchers have identified two bacterial proteins, PifA and PifB, that mediate asexual reproduction in insect hosts by interfering with host chromosome segregation and gene expression. The discovery provides new avenues for studying Wolbachia-mediated reproductive manipulation.
A study reveals that gene duplication events hundreds of millions years ago led to the emergence of complex traits such as insect flight and octopus camouflage. These 'copy paste' errors allowed for the specialization of ancestral genes, which were then repurposed for specific tissues and organs.
A new species of aquatic insect, Potamophylax kosovaensis, has been discovered in the Ibër River Basin in Kosovo. The species is already considered endangered due to habitat destruction and pollution, highlighting the need for urgent conservation efforts.
Researchers have discovered fossilized water striders in copulation, providing a rare glimpse into the mating behaviors of ancient insects. The study reveals strong sexual conflict between males and females, with males using specialized morphological adaptations to overcome female resistance.
Researchers have discovered the first orchid species pollinated by gall midges, a tiny fly species. The study found that the flowers of Oberonia japonica are specifically adapted to attract female gall midges, which then transfer pollen and access structures, solving a mystery in plant-pollinator relationships.
Recent research reveals that social factors control ant queens' specialization in egg-laying and maintain it in established colonies. Founding queens assume multiple tasks before becoming specialized.
A new study reveals a strong pattern of decline among moths of all sizes and life stages from rural to urban areas in Florida. Larger macromoths fared worse than smaller ones, likely due to increased metabolic stress in high temperatures.
Researchers discovered how honeybees interpret dances that relay directions to food, even in complete darkness. By analyzing bee movements and antennae signals, scientists found a neural mechanism that combines sensory data from the two systems.
Researchers have identified a gene responsible for the development of starvation-induced fatty liver in cavefish, which are able to protect their liver due to reduced fat accumulation. This genetic basis has implications for understanding and addressing liver conditions in humans, including Type 2 diabetes and obesity.
Scientists used artificial stream channels to mimic the behavior of headwater streams in California, finding that shifting low-flow conditions impacted life cycles of organisms and biodiversity. The study shows that even slight changes can be consequential for ecosystems.
Researchers at the University of Maryland have developed a genomic method to monitor pesticide resistance in crops, allowing for early detection of emerging threats. The approach identifies specific genes with mutations that can explain toxin resistance, and provides insights into how common strategies may be facilitating resistance.
Citizen science plays a crucial role in detecting the giant water bug's presence on Cyprus, with seven sightings recorded in 2020 and 2021. The species, known for its painful bites and hunting habits, is unlikely to have gone unnoticed for too long, sparking discussions about possible migration events.
Researchers studied cicadas' jet-like urination to challenge insect pee paradigms. They found that larger animals like cicadas can emit jets due to gravity and inertial forces, unlike smaller ones that typically produce droplets. This discovery has far-reaching implications for bio-inspired engineering and monitoring applications.
Scientists have discovered the specific enzyme responsible for producing a pheromone attractant in a deadly sandfly species. This breakthrough could lead to the development of commercial traps to control the spread of Leishmaniasis, a disease that causes skin ulcers and can be fatal if left untreated.
A new study reveals how viral proteins from symbiotic bacteria manipulate sperm in male insects, causing sterility and preventing the spread of diseases like Zika and dengue. The research could lead to refined techniques to control populations of agricultural pests and insect vectors.
The study found that the fungus begins affecting the insect's behavior two days after spraying bioinsecticides, reducing its feeding activity and pathogen transmission. The fungus is a natural, wild species that does not pose a hazard to human or animal consumption, making it a potential alternative for organic crop control.
Researchers from OIST used X-ray micro-CT to study a 38 million-year-old termite pair trapped in amber, revealing a male and female in tandem running behavior. The discovery provides new insights into the fidelity of behavior fossilization in amber.
Researchers found that insecticide paint effectively killed mosquitoes for up to a year in Cabo Verde, with good acceptance from the population. The VESTA formulation met WHO efficiency threshold requirements, making it a promising strategy for preventing vector-borne diseases.
A 8-month study on a warm-temperate grassland ecosystem found that some predators switch prey and detritivore prey contribute to network stability. These 'network coordinators' offer a measure of flexibility to the overall network architecture.
Researchers found that fungus gnats lay eggs in the flowers, which then feed on decaying flowers to develop into adult gnats. However, some gnats may escape the trap, suggesting a nuanced interaction between plant and insect.
Researchers have identified a network of approximately 20 specialist decomposing microbes that consistently appear on all 36 human cadavers decomposed under various conditions. This discovery has significant implications for the future of forensic science, enabling investigators to more accurately determine a body's time of death.
Researchers discovered how insects navigate using limited brain power by simplifying complex problems through their behavior, a strategy that can be applied to robots and computers. A model of insect neuronal activity showed the robot successfully navigated in various environments, leading to potential improvements in energy efficiency.
A University of Washington team discovered that nitrate radicals in the air degrade scent chemicals released by wildflowers, making them undetectable to nighttime pollinators. The researchers found that pollution likely has worldwide impacts on pollination, with areas including western North America and Europe most affected.
Scientists at UC Riverside have discovered a tiny worm species that can control crop pests in warm, humid environments. The new Steinernema adamsi nematode is nearly invisible and can kill insects with a low dose, making it a potential alternative to pesticides.
Researchers developed a mathematical model showing how cicadas come to a consensus about local average temperature, leading to large-scale swarms. The model is related to those describing 'avalanches' in decision-making among stock market traders, highlighting the importance of communication in collective behavior.
Researchers have identified and detailed the structure of Mcf1, a bacterial toxin that kills insects by disrupting essential proteins in their cells. The discovery has implications for developing new organic pest control agents and may also shed light on human diseases.
A new study reveals that years with higher moth numbers result in increased blue tit population growth, highlighting the crucial role of moth caterpillars as a food source. The research, which combined data from two UK-wide monitoring schemes, found regional variation in important moth prey species for blue tits.
Researchers have documented insecticide resistance in field-collected populations of bluegreen aphids, a worldwide pest of pulses and legume crops. The study highlights the need for new strategies to manage this pervasive pest, as conventional insecticides are no longer effective.
Research reveals that European insects outnumbers non-native species in North America, Australia, and New Zealand despite reduced international trade patterns. Introduced plants may have promoted the spread of European insects by providing food and habitat for subsequent arrivals.
The Taiwanese Leaf Litter Beetles Barcoding project has created a comprehensive reference library for these elusive beetles using DNA barcoding. The dataset comprises 4,629 beetles representing 334 species candidates from 36 families, unveiling taxonomic insights and enhancing our understanding of their biology and ecological roles.
A study published in iScience found that DEET can affect meiosis, leading to abnormal chromosome structure and reduced egg cell quality. This raises concerns about the potential reproductive effects of DEET-containing products in humans. Further research is needed to confirm these findings and inform recommendations for balancing disea...
Researchers have discovered that insect larvae already used various anti-predator strategies, such as spines, hairs, and camouflage, in the Cretaceous period. These findings provide insights into the evolution of defense mechanisms in insects and shed light on the ongoing biodiversity crisis.
Scientists at CNRS found that flowering plants in farmland are evolving towards self-fertilization as insects decline. This phenomenon threatens plant-pollinator interactions, highlighting the need for conservation measures.
A recent study found that decreases in the number of formerly abundant insect species have contributed significantly to local insect declines. The study's findings challenge the idea that changes in insect biodiversity result from rarer species disappearing.
Researchers found that adding protruding rocks to restored streams increases the abundance and diversity of stream insect eggs, but not necessarily their larval stages. This study suggests that stable rock landing areas can enhance aquatic insect populations in restored streams.
A global study on plant-herbivore interactions has confirmed variability in insect eating habits across different members of the same species of plants. Latitude is found to be a significant factor affecting herbivory variability, with more kinds of insects feeding on plants and its relatives at higher latitudes.