Articles tagged with Insects
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New research reveals that many North American bird species use looped migration routes, following the flush of green vegetation in spring and avoiding harsher winter conditions. By analyzing large datasets from eBird and satellite imagery, scientists have uncovered a general pattern common to many species.
A new species of parasitoid wasp, Spasskia brevicarinata, has been discovered in China, adding to the genus Spasskia. The newly identified species exhibits distinct characteristics, including a short ridge on its first tergite.
Professor Javier Alba-Tercedor from the University of Granada won an international award for his innovative 3D video of a cicada's interior using microtomography. This non-invasive technique provides high-resolution images without damaging the sample.
Researchers have found exceptionally well-preserved fossil insects in the French equivalent of the Tithonian Konservat-Lagerstätte, comprising a new species representing the oldest known water treader. The fossils provide crucial insights into the evolution of terrestrial environments during the Upper Jurassic period.
The TX Invasives app allows users to identify 56 invasive plants, 25 insect species, 19 animals, and four pathogens. Citizen scientists have reported over 17,000 invasive species observations since 2005, aiding in management decisions and responding to new threats.
Dr. Fred Baxendale, an entomology professor at the University of Nebraska-Lincoln, has been recognized for his significant contributions to the field with Honorary Membership in the Entomological Society of America (ESA). He has served the organization for over 20 years through various roles and publications.
Researchers studied century-old museum specimens to understand how climate change will impact a common tree pest. They found that scale insect populations increased in warmer urban areas and are also rising in rural forests, suggesting cities may be a preview of what to expect elsewhere.
Geckos can run up walls, cling to ceilings, and defy gravity due to their unique toe hairs called seta that turn sticky and non-sticky instantly. This 'smart' adhesion system allows geckos to achieve remarkable speeds and support massive weights.
A comprehensive online resource has been developed to assist in the identification of 194 potentially invasive species from around the world. The new tool, built by the USDA and California Department of Food and Agriculture, includes diagnostic characters, distribution, hosts, and important references for each species.
Ancient insect inclusions in Baltic Sea amber reveal a surprising similarity with Asian forms, dating back 40-50 million years. This discovery fills a long-standing gap in the understanding of species migration between continents.
A new species of mayfly, Labiobaetis soldani, has been discovered in the Indian Western Ghats. The larvae have distinctive light-brown heads and antennae, while adults are similar in size to those of related species.
New research from North Carolina State University reveals that urban heat is killing red maples by boosting pest populations. Warmer temperatures lead to a 300% increase in young gloomy scale insects, resulting in 200 times more adult scales on urban trees. This stress can also limit tree growth and kill trees.
A new planthopper species, Conosimus baenai, has been discovered in southern Spain. It differs from other Conosimus genus species due to its unique forewing coloration and vein patterns.
Jocelyn Millar, a professor of entomology at UC Riverside, has been awarded the Silver Medal by the International Society of Chemical Ecology. His research primarily focuses on how insects use odors and tastes for communication, with practical applications for detecting and managing insect populations.
Researchers have created synthetic versions of stink bug pheromones to track and control invasive brown marmorated stink bug populations. The substances were effective in attracting adult and juvenile bugs, enabling easier population monitoring.
The first issue of Current Opinion in Insect Science is now available for free online on ScienceDirect, featuring articles on insect body size, genetics, and social structure. The journal aims to provide a unique platform for specialists to keep up-to-date with the expanding volume of information published in the field of insect science.
Researchers have found that modern maize has lost its ability to produce a defense chemical called E-β-caryophyllene, making it vulnerable to insects and pathogens. By introducing a gene from oregano, scientists were able to restore this chemical production, attracting beneficial nematode worms that kill corn rootworm larvae.
Researchers found that plants produce more defensive chemicals when exposed to caterpillar feeding vibrations, repelling future attacks. The plants distinguished between feeding vibrations and other environmental sources, highlighting their ability to detect insect threats.
Research reveals eight spider families preying on fish worldwide, with diverse species adapting to aquatic environments to catch fish even larger than themselves. Semi-aquatic spiders possess powerful neurotoxins and enzymes to kill and digest their prey.
Research reveals a large diversity of spiders engaging in fish predation globally, with semi-aquatic species catching small freshwater fish. Spiders use powerful neurotoxins and enzymes to kill and digest fish, providing an occasional nutrient-rich prey item.
Scientists urge travelers to use insect repellents containing DEET to prevent diseases like malaria and dengue fever, which can be transmitted by insects. The London School of Hygiene & Tropical Medicine launches Bug Off campaign for Insect Repellent Awareness Day.
A new species of stick insect, Sinophasma damingshanensis, has been discovered in Guangxi, China. The insect boasts unique camouflage abilities, mimicking plant stems and exhibiting rocking behavior to enhance its natural disguise.
Researchers discovered that female parasitic fig wasps possess zinc-tipped ovipositor drill bits, allowing them to efficiently navigate and lay eggs within the fruit's woody interior. The drill bit's hardness and wear resistance were found to be remarkable, comparable to dental implants.
A study by Ecological Society of America finds that excluding invasive pests like the emerald ash borer from imported goods saves US $11.7 billion, outweighing added costs. The treatment reduces wood borer infestation rates by up to 52%, benefiting homeowners and local governments.
A new species of praying mantis, the tiny bush tiger mantis, has been discovered in Rwanda's Nyungwe National Park. The species was found to have unique hunting practices, with females adapting for close-range prey capture.
Researchers have identified a novel mechanism of resistance in pink bollworm insects to genetically engineered Bt cotton, which could impact the effectiveness of integrated pest management strategies. Alternative splicing is responsible for the diverse variants of cadherin protein that confer resistance.
Researchers at Virginia Tech created a cheap and effective stink bug trap using a foil roasting pan, dish soap, and light. The homemade trap eliminated 14 times more stink bugs than store-bought models, providing a pesticide-free solution for homeowners.
University of Miami researchers found that an amino acid transporter regulates glutamine supply to symbiotic bacteria in pea aphids, enabling the exchange of essential nutrients. This simple mechanism allows the insect-bacteria partnership to adapt to changing demand for nutrients.
Goldenrod gall fly larvae produce a novel class of lipids that remain fluid at low temperatures, allowing them to survive freezing winters. These acetylated triacylglycerols are less energy dense than standard lipids and have antifreeze characteristics.
UC Riverside researchers created a method to classify different species of insects with up to 99% accuracy using inexpensive wireless bug sensors. The sensors track multiple insect flight behavior patterns and generate large amounts of data for classification algorithms.
Biologists at Newcastle University use 'confusion effect' to temporarily disorient whiteflies, reducing their ability to feed on tomato plants. The study suggests a potential new method for sustainable pest control, using harmless plant volatiles to give plants time to defend themselves.
A cost-effective system uses off-the-shelf equipment to produce 3D models of medium-to-large insects, enhancing biodiversity discovery and species identification. The compact models have excellent optical resolution and can be shared via documents and web pages.
Researchers discovered that female cave insects, Neotrogla, have evolved elaborate penis-like organs, reversing traditional sex roles during copulation. This unique adaptation may be linked to the resource-poor environment and advantageous mating strategies.
Flowering plants adapt their scent signals to balance attraction of pollinators with protection from herbivore damage. Research shows that infested plants reduce floral scent to lure parasitic wasps, which are then attracted by leaf scents. This complex interaction highlights the trade-offs in plant defense strategies.
Researchers discovered that male big brown bats use uniquely distinctive calls to signal they want a meal, while females primarily forage near family members. These social calls were previously unknown and have been found in over 96% of recorded instances.
Insects' sense of smell crucial for survival; recent study shows odorant receptors emerged long after terrestrial adaptation. The first insects were not yet able to smell well, with their complex olfactory systems evolving after the development of flying ability.
Scientists discovered three fossil specimens of a new stick insect species that mimicked plants for defense, predating twig and bark mimicry. The ancient insects' wings and coloration suggested a plant-mimicking strategy, providing insight into early evolutionary adaptations.
Researchers have developed a method of insect control using plants that emit sex pheromones mimicking those naturally produced by moths. The study, published in Nature Communications, shows that plants can be engineered to produce these pheromones, attracting male moths and effectively trapping them.
Researchers at Penn State have identified major protein components in brown marmorated stink bug saliva, revealing distinct profiles for watery and sheath salivas. This breakthrough may lead to new pest control methods by targeting specific factors essential to feeding behavior.
Tc toxin complexes, used by bacteria like Yersinia pestis and Photorhabdus luminescens, have been imaged with atomic detail. The complexes use an elastic band-like protein chain to penetrate cell membranes, depositing toxic enzymes. This mechanism has potential applications in medicine, including selectively targeting cancer cells.
Researchers found that neighbor plants affect the quality and taste of individual plants for insects. This impacts insects' ability to control pest species like ragwort, which can be toxic to horses.
Fred Gould will deliver a lecture on Dr. Robert L. Rabb, a pioneer in developing ecologically sound approaches to insect pest management. Gould's research has profoundly influenced global crop management and vector-borne disease control.
Biologists discovered a new plant species, Piper kelleyi, that is home to an estimated 40-50 insect species, most of which are entirely dependent on the plant for survival. The study highlights the importance of unique plant compounds in driving evolution and biodiversity.
A new protocol allows researchers to investigate feeding patterns and detect plant DNA in grasshoppers, providing insights into insect-plant interactions. The method enables tracking of plant food movement during consumption and can be completed in under three hours.
Two new studies have found that genetically modified, insect-resistant crops have no negative effects on beneficial insect predators or a beneficial, entomopathogenic nematode. The research demonstrated that Bt proteins used in corn and cotton crops do not harm two important insect predators that help suppress pest populations.
A new recording system at the University of Southern Denmark has revealed two bat species not believed to live in the area, including Nathusius' pipistrelle and the Danish pond bat. The monitoring system also found that bats often fly in the rain and their activity slows down when weather is clear and cool.
Three new extinct fossil species of big-headed flies were discovered in Eocene epoch fossil beds, dating back 49-52 million years. These finds show early evolution parallels a significant ecological revolution, which formed modern natural communities.
A new IU study explores social learning dynamics and finds that being surrounded by copycats can lead to better problem-solving success. The researchers created a virtual problem landscape using a computer game and found that imitators often make their own improvements, which are then adopted and improved upon by others.
Researchers analyzed α-KTx family sequences to identify conserved amino acid sites associated with neurotoxin structure and function. A single genetic deletion event can convert an STS-containing insect defensin into a scorpion-like neurotoxin.
A new study found that bed bug infestations in Philadelphia increased by 4.5% per month from 2008 to 2011, with reports peaking in August and lowest in February. The researchers mapped hotspots and suggest treating during warmer months or winter when numbers are down.
A new species of cockroach discovered in Colorado's Green River Formation reveals that the genus Ectobius originated in the New World over 49 million years ago. The finding challenges a long-held assumption about the cockroach's evolutionary history, instead suggesting a complex migration history between the Old and New Worlds.
A new study published in Annals of the Entomological Society of America has found that low temperatures can be used to store eggs of the predatory stink bug Podisus nigrispinus. This allows for greater flexibility in mass rearing and storage, increasing the availability of insects for release in the field at an early opportunity.
The Norwegian Taxonomy Initiative has identified nearly 60% of the newly discovered species as insects or small terrestrial invertebrates. DNA analysis has also revealed new insights into fungal and marine species, providing a better understanding of Norway's ecosystems.
A study found that orb web spiders make up 25% of their diet with pollen, consuming aerial plankton like fungal spores. Spiders that ate both pollen and flies gained optimal nourishment.
Researchers at Oregon State University have developed genetically modified poplar trees that grow faster, resistant to insect pests and retain genes for up to 14 years. These traits could be particularly valuable in the paper and pulp industries and emerging biofuel sector.
Researchers discovered that the Pallas long-tongued bat uses stealth echolocation to catch moth prey, employing high-frequency but low-intensity calls that evade the insects' auditory systems. This finding suggests that more bats may benefit from this stealthy approach, previously only known in the European barbastelle bat.
A study published in Springer's journal found that a long-proboscid fly can suck up almost all nectar available in a flower in one go due to more efficient suction pumps in its head. This allows the insect to gain an advantage over other flies with average-sized mouth parts.
The buff-tailed bumblebee, introduced to Chile in 1998, has spread rapidly throughout South America, outcompeting native species and potentially disrupting the ecosystem. The parasite Crithidia bombi is a key factor in the decline of native bumblebees.
Rutgers researchers confirm presence of Periplaneta japonica, a species well-documented in Asia, which can survive freezing temperatures and outdoor conditions. The new species was first spotted in New York in 2012 and is not expected to pose an alarm, but may compete with existing cockroach species for space and food.
Researchers at the University of Cambridge discovered that crop-infecting viruses use aphids as pawns to spread infection to healthy vegetation. By altering plant biochemistry, these viruses repel visiting aphids and force them to move to healthier plants, unwittingly transporting and spreading the virus.