Articles tagged with Insects
Researchers at New Mexico State University have developed an optimal protocol for shipping and handling mosquitoes for population control methods. Tightly packing mosquitoes at a rate of about 240 per cubic centimeter resulted in the highest survival rates.
Research detects 69 pharmaceutical compounds in stream insects, which can pass to predators in water and on land, exposing them to therapeutically-relevant doses. The study highlights the chronic drug pollution concentrated in aquatic insects and its potential ecological consequences.
A new study found that picaridin-containing insect repellents can be lethal to larval salamanders, causing severe mortality and developmental deformities. The research suggests that environmentally realistic concentrations of picaridin may increase the abundance of adult mosquitoes due to reduced predation pressure.
A recent study by University of Delaware researchers found that residential yards dominated by non-native plants have fewer arthropods, leading to a decline in bird populations. The research suggests that prioritizing native plant species can support biodiversity and sustain wildlife.
A recent study found that plants with strong defense capabilities against insects exhibit slower growth rates and compromised reproductive success. The research suggests a trade-off between defense and growth in plant biology, where investing more energy in defense reduces resources available for growth and reproduction.
Researchers at IUPUI have spotted a new type of blow fly in Indiana, indicating shifting species populations due to climate change. The Lucilia cuprina fly was previously known to populate southern states but has now been found as far north as Michigan.
Researchers discovered that animals swish their tails to generate a curtain of breeze that wafts insects away. The study found that the animals were swinging their tails three times faster and using 27 times more energy than expected, but still only intercepted one insect every 90 seconds.
Climate-driven crash in arthropod populations has significant implications for rainforest ecosystems and biodiversity. The study found that insect biomass declined by up to 60-fold between 1976 and 2013, leading to a major bottom-up trophic cascade.
Researchers at the University of York have discovered a protein in fruit flies that regulates insulin and is also found in mosquitoes carrying diseases like malaria and yellow fever. This finding opens new pathways for drug design and could lead to better understanding of neurological diseases such as Alzheimer's.
A newly-discovered moth species, Admetovis icarus, has been identified with a distinctive flame-shaped mark on its forewing. The moth prefers high-elevation habitats and can be spotted in the mountains of western North America during June and August.
Scientists and legal scholars warn that DARPA's Insect Allies program could be misused for biological warfare due to the ease of dispersing genetically edited viruses into fields. The technology has the potential to rapidly alter crop properties, raising concerns about its peaceful use.
Malaria parasites have evolved to replicate in sync with mosquitoes' feeding cycles, causing regular bouts of fever. Scientists discovered that these parasites are more infectious to mosquitoes during the day, and their replication patterns likely evolved to optimize transmission.
Scientists from Shinshu University have analyzed the genetic DNA of Stenopsyche caddisflies, a common Japanese insect delicacy. The study reveals that these insects originated in southern Asia and dispersed globally over millions of years.
A recent study found that marketing insect-based food as pleasurable and enjoyable is more effective in changing attitudes towards these foods. The research team asked participants to view advertisements highlighting either the environmental or health benefits of insect-based food, or those promoting its taste and luxury.
Scientists find DEET confuses critters by messing with neurons that help sense surroundings. Researchers also discover genetic and cellular mechanisms underlying response to the chemical.
Researchers found that DEET interferes with Caenorhabditis elegans' neural circuitry, jumbling their response to certain odors. This knowledge could help develop more effective DEET alternatives.
A team from Imperial College London used gene drive to completely block the reproductive capacity of malaria-carrying mosquitoes, Anopheles gambiae. The technology successfully transmitted genetic modifications that caused female infertility and population collapse.
A team of researchers observed an adult male praying mantis catching and devouring guppies in a pond in Karnataka, India. The insect returned five days in a row, catching a total of nine fish with impressive learning abilities.
A species of seed-feeding fly is critically damaging orchid seeds, threatening their reproduction. The fly reduces seed production by over 95% in five species, putting already-endangered orchids at risk.
A developmental model was constructed to recreate the intricate patterns of secondary veins in insect wings. The study analyzed images from 232 species and found that the model effectively recreated venation patterns across three orders.
New fossils of Mesozoic pollinating lacewings provide insight into the niche diversity, chemical communication, and defense mechanisms of ancient pollinators. The findings suggest that coevolution between pollinators and host plants under partitioned pollination niches promoted their species diversification.
Researchers created a database of over 500 dragonfly specimens and developed an algorithm to differentiate unique wing shapes. They found similarities in distribution across families and species, proposing a developmental model for pattern formation involving inhibitory signals and random zone emergence.
Researchers developed an autonomous flapping-wing robot to study demanding insect flight tasks like takeoff, landing and evasive maneuvers. The robot accurately replicated fruit fly's rapid banked turns using a passive approach to control the maneuver dynamics.
Researchers at UConn have created a tiny neuro-controller that can precisely control the movement of cyborg cockroaches. The system, which includes an inertial measurement unit and real-time feedback, enables operators to steer the insect in desired directions.
A study found that men exceed women in university and federal entomology jobs by a roughly 3-to-1 ratio, despite women earning over 40% of doctoral degrees in entomology. The research highlights the need for gender equity in academia and government.
A new study reveals that climate change is driving an increase in insect herbivory damage on plants, with warmer winters and urbanization having opposing effects. The research used herbarium specimens to track changes in insect damage over more than a century, providing valuable insights into the impact of climate change.
A new study predicts that rising insect populations will lead to significant crop losses due to increased metabolic rates and population growth with temperature. Global yield losses for major crops are expected to increase by 10-25% per degree of surface warming, threatening the already fragile global food supply.
Researchers project that insect activity will increase along with temperatures, boosting worldwide losses of rice, corn and wheat by 10-25 percent. For a 2-degree Celsius rise in surface temperatures, median losses in yield due to insect activity would be 31% for corn, 19% for rice and 46% for wheat.
Rising global temperatures will lead to increased pest pressure and crop losses, especially in temperate regions, with wheat, rice, and maize facing substantial declines. Crop losses are projected to rise by 10-25% per degree of warming, with the most severe impacts expected in countries like France and China.
A new study projects a 50-100% increase in pest-induced crop losses in European wheat and 30-40% increases in North American maize, even with reduced greenhouse gas emissions. Insect population growth is expected to be fueled by warmer temperatures, leading to significant pressure on grain producers.
A plant virus manipulates aphid species to its advantage by increasing the nutrients in host plants, making it easier for aphids to feed. This allows late-arriving aphids to outcompete early arriving ones, leading to boosted reproductive success and increased spread of the virus.
Researchers have identified a key Sox gene that regulates segmentation during spider development, similar to its role in insects. This finding sheds light on the evolutionary secrets behind arthropod body formation.
Biologists at Rice University have discovered a new trophic interaction between love vines and gall-forming wasps. The study found that the vines attack tumor-like growths called galls made by the wasps, leaving behind mummified adult wasps.
Chagas disease, caused by a parasite, has spread to the US and other countries, carrying a high risk of heart disease. Early detection is critical for treatment, which can be cured with medications having a 60-90% success rate.
Virginia Tech researchers have discovered a way to develop environmentally friendly and sustainable pest controls using pheromones, which can be used to lure stink bugs away from cash crops. This could save farmers millions of dollars on pest control costs.
Researchers at the University of Delaware discovered that plants emit scent cues when under attack by insects, recruiting birds to provide a food source while defending crops. The study used Play-Doh larvae and dispensers to replicate plant volatiles, finding that birds were attracted to these cues more strongly than to a control measure.
Researchers found that fruit fly wings are not optimized for aerodynamics but rather help detect scents, which is crucial for survival. The wings' unique motion 'scoops' streams of odor right to the insect's antennae, enabling it to find food and mates.
New study finds that 40% of plant material is removed by insects and fungi each year, supporting diverse communities of organisms. Contrary to expectations, plants don't face trade-offs in defending themselves against different consumers, with some species protected against everything and others devoured.
African scientists developed diverse practices to combat tsetse flies, including late-season forest burning and innoculations, which were later adopted by Europeans as part of their 'science'. The book highlights the importance of understanding the connections between human and environmental mobilities in knowledge production.
A genomic study reveals that insects' ability to detect airborne odors evolved long before wings and was an adaptation for terrestrial life. All insect species examined possess specialized odorant receptors, which were present at the beginning of insect evolution.
Scientists found aphids change the quality of plant sap depending on the infested plant part, benefiting from these changes. This 'niche construction' enables aphids to thrive on specific host plants.
A new research collection targets insect pests of pulse crops, providing guidance on integrated pest management. The collection features nine articles covering major pests, microbial control methods, and economic threshold levels.
Researchers discovered that free-living insects can copy and inject plant hormones into leaves to increase nutrient content. This strategy is similar to endophytic insect species and could aid in developing effective pest management strategies.
A study published in Scientific Reports refutes the long-held hypothesis that zebra stripes aid cooling, instead revealing no significant temperature difference between black and white stripes.
Researchers found that host plant quality determines whether brown planthoppers grow short wings or long wings, with higher glucose levels triggering the development of long-winged adults. This discovery could lead to new methods for controlling the insect, a major pest on rice in Asia.
A team of researchers at Ohio State University has developed a painless microneedle technology inspired by the mosquito's proboscis. The new design incorporates four key elements: a numbing agent, a serrated design, vibration during insertion, and a combination of soft and hard parts on the proboscis.
Scientists have discovered significant differences in gonad development between Steinernema carpocapsae and C. elegans, highlighting the diversity of neuronal anatomy across nematode species. This research has practical applications for commercializing biocontrol products and advancing our understanding of genetic processes.
Researchers discovered that the root spittlebug produces a thermal insulator-foam to maintain an optimal body temperature during development. The foam, composed of palmitic acid, stearic acid, proteins, and carbohydrates, protects nymphs from temperature fluctuations in the external environment.
Researchers found that between 5-20% of stick insect eggs were excreted unharmed after being fed to a bird species. The study suggests that this process could contribute to the dispersal of stick insects across different habitats, similar to how plants use animals for seed distribution.
By 2100, a 2°C limit could see insect species lose over half their ranges double, while a 1.5°C target halves this number, highlighting the importance of ambitious climate targets for biodiversity conservation
A global temperature increase of 2°C would double risks for plants, animals, and insects, leading to widespread biodiversity loss. If left unchecked, warming could trigger systemic ecological simplification, threatening ecosystem services crucial for human well-being.
Bats inhabit high altitudes, utilizing the troposphere as an important food source, but face threats from collisions with anthropogenic structures and light pollution. Conservation strategies, such as reducing wind power impacts and limiting artificial light emission, can help protect these habitats.
Researchers develop algorithm allowing MAVs to find their way back to earlier visited locations efficiently using familiar views and small neural networks. The algorithm shows promise in enabling computationally efficient homing capabilities for most MAVs.
Researchers found that damselfly genes strongly responded to environmental changes as they moved towards the northern edge of their range. The study suggests that the blue-tailed damselfly has a wealth of evolutionary strategies available to help it adapt to a changing climate.
Researchers uncovered a new lacewing species with anatomical modifications mimicking coeval liverworts, demonstrating the first record of liverwort mimicry by fossil insects. The larvae's foliate lateral plates and unique morphological features aid their survival and likely enable stealthy hunting or ambush predation.
A team of international scientists has created a new form of highly-efficient, low-cost insulation based on the wings of a dragonfly. The material is ultralight and porous, with a piece weighing less than a kilogram, and can be replicated at an affordable cost.
Researchers discovered that blowflies use a unique mechanism called 'bubbling' to cool down, moving a droplet of saliva in and out of their mouths to promote evaporation. This behavior helps lower the insect's body temperature by up to 8°C below ambient temperature, with a significant impact on its flight muscles and brain.
A new insect fossil discovery highlights a striking resemblance between Canadian and Russian fossils from the same age period, further solidifying an ancient connection between the two regions. The similarity is remarkable, with only the wing color distinguishing the two species, Eomerope eonearctica and Eomerope asiatica.
Researchers uncovered the anomaly in water's properties by using supercomputers to 'untune' its interactions, revealing a specific molecular arrangement that contributes to its unusual behavior. This discovery provides a simple explanation for phenomena such as water expanding on cooling and insects walking on its surface.
A new study suggests that psyllid nymphs infected with Candidatus Liberibacter asiaticus exhibit resistance to the bacteria's effects, thanks to symbiotic bacteria in their gut. Researchers aim to understand and reverse this mechanism to develop a management strategy for citrus greening.