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Student’s device enables researchers to easily track elusive insects

Researchers have developed a low-cost device to track insect activity, providing insights into their circadian rhythms and behavior. The portable pLAM device can monitor nocturnal species that were previously difficult to track, enabling scientists to study their habits and predict how environmental changes impact them.

SourceFlorida Museum of Natural History·JournalMethods in Ecology and Evolution·TypeExperimental study·DateFeb 24, 2022

Sun compass on demand

Researchers from the University of Würzburg discovered that monarch butterflies process sun information as a compass during migration, but only when flying actively. The butterfly's brain represents the heading direction relative to the sun in a similar way to a compass.

SourceUniversity of Würzburg·JournalCurrent Biology·TypeExperimental study·DateNov 24, 2021

New research provides compelling evidence of the connection between AMR surgical-site infections and arthropods

A new study by Oxford academics found that approximately 20% of flies and cockroaches carry carbapenem resistance, while 70-80% carry extended spectrum cephalosporin resistance. Climate change could lead to a doubling of insect populations and an increase in the global spread of antibiotic resistance.

SourceUniversity of Oxford·JournalNature Microbiology·TypeRandomized controlled/clinical trial·DateSep 30, 2021

Hoverflies navigate using sun and body clock

Research reveals hoverflies use a time-compensated sun compass to orientate during autumn migration, adjusting course based on sun's position and time of day. This navigation technique helps the insects maintain an efficient southern route despite flying on sunny days.

SourceUniversity of Exeter·JournalProceedings of the Royal Society B Biological Sciences·TypeObservational study·DateSep 21, 2021

Bee flight suffers under temperature extremes

Researchers found that bumblebee flight performance rises rapidly from 12°C and peaks between 25-27°C, but declines beyond this. This study suggests that climate warming may benefit some northern-latitude bee species, but poses risks to southern-latitude populations due to more frequent extreme weather events.

SourceImperial College London·JournalFunctional Ecology·TypeExperimental study·DateAug 18, 2021

A robot to track and film flying insects

Scientists from CNRS, Université de Lorraine, and Inrae have developed a cable-driven robot that can follow and interact with free-flying insects. The robot successfully studied the free flight of moths up to a speed of 3 meters/second, enabling researchers to better understand insect orientation strategies.

SourceCNRS·JournalScience Robotics·DateJun 10, 2020

Revealing how flies make decisions on the fly to survive

Researchers studied how hoverflies process visual information to control their flight movements, finding that descending neurons adapt like sensory neurons but also persistently fire like motor neurons. This unique integration of responses offers insights into the brain-behavior link in flies and potentially all vertebrates.

SourceFlinders University·JournalCurrent Biology·DateMay 28, 2020

Ancient mantis-man petroglyph discovered in Iran

A unique rock carving with six limbs has been identified as a part man, part mantis, suggesting humans have linked mantids to the supernatural since ancient times. The petroglyph was discovered in Iran's Teymareh site and is believed to be between 40,000-4,000 years old.

SourcePensoft Publishers·JournalJournal of Orthoptera Research·DateMar 16, 2020

Insects as food and feed: research and innovation drive growing field

A new special issue of the Annals of the Entomological Society of America showcases research on insect agriculture for food and feed. More than 1 million insect species are known, offering room for growth in the field. Insect-based industries could reach $50-100 billion by 2050, bolstering global ag sector while protecting environment.

SourceEntomological Society of America·JournalAnnals of the Entomological Society of America·DateSep 11, 2019

Math for midges that pull 10g

Researchers at Rothamsted Research have developed a simple mathematical model to predict the behavior of midge swarms, which can help protect crops from airborne pests. The model uses basic physics principles to simulate the complex flight dynamics of midges and predicts their dispersal patterns.

SourceRothamsted Research·JournalInterface·DateJan 2, 2018

New study changes our view on flying insects

Researchers at Lund University have discovered an optimal speed for certain insects when they fly, consuming the least amount of energy. Flying slowly or fast requires the most effort, with a moderate speed of 2-3 meters per second being the most energy-efficient.

SourceLund University·JournalJournal of The Royal Society Interface·DateSep 29, 2017

This flower smells like a bee under attack

Researchers found that Giant Ceropegia flowers mimic the scent of honeybees under attack to fool freeloading flies into pollinating them. The study reveals a complex reproductive strategy where plants use alarm pheromones to lure in insects.

SourceCell Press·JournalCurrent Biology·DateOct 6, 2016

Water-skiing beetles get a bumpy ride

Researchers discovered that the beetles' unique method of movement involves raising their middle legs to prevent wing interference and then rapidly flapping their wings in a figure-of-eight pattern. The insects' balancing act between surface tension and lift generates telltale ripples on the water's surface.

SourceThe Company of Biologists·JournalJournal of Experimental Biology·DateMar 2, 2016

Green spaces don't ensure biodiversity in urban areas

A University of Iowa study found that planting trees in urban areas does not guarantee an increase in insect populations, despite attracting species. The researchers surveyed tree species and insect abundance, concluding that built environments can limit diversity by impeding insects' ability to interact with other trees.

SourceUniversity of Iowa·JournalPLOS ONE·DateOct 31, 2014

The temperature tastes just right

Brandeis researchers have discovered a previously unknown molecular temperature sensor in fruit flies, which belongs to a protein family responsible for sensing tastes and smells. The discovery provides insights into how insects respond to temperature and may help scientists develop more effective repellents or traps.

SourceBrandeis University·JournalNature·DateAug 7, 2013

No map, no problems for monarchs

A team of scientists found that monarch butterflies use external cues like the sun and magnetic field as a built-in compass, but not an internal map. They funnelled towards their destination using major geographic landmarks.

SourceUniversity of Guelph·JournalProceedings of the National Academy of Sciences·DateApr 8, 2013

Hovering is a bother for bees: Fast flight is more stable

New research published in the Journal of Theoretical Biology found that bumblebees are unstable when hovering and flying slowly, but become neutral or weakly stable at medium and high flight speeds. This is due to a sideways wind made by the movement of their wings, which can be reduced by increasing speed.

SourceElsevier·JournalJournal of Theoretical Biology·DateMar 14, 2013

Study shows how one insect got its wings

Researchers at Ohio State University have discovered the genetic mechanism that led to the development of wings in fruit flies, a key to their survival. By analyzing 20 cells present in the larval stage, they found that a specific gene, Dpp, triggers the growth of wings by activating another gene, vn.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateMar 11, 2013

When bird meets machine, bioinspired flight

Researchers have modeled and mimicked the natural designs of falling geckoes, gliding snakes, and flying birds to improve air vehicle design. The special edition, 'Bioinspired Flight', reveals innovative approaches for controlled hovering, forward flight, and exploitation of thermal updrafts.

SourceIOP Publishing·JournalBioinspiration & Biomimetics·DateNov 23, 2010

How flies set their cruising altitude

Fruit flies establish a fixed height by tracking horizontal edges and fly at the same altitude as these features. The researchers used a virtual-reality space to track the flies' movements and confirmed that edge tracking is the primary mechanism.

SourceCell Press·JournalCurrent Biology·DateAug 19, 2010

How does a locust walk a ladder? A lot like you

A new study shows that locusts rely on visual input from a single eye to control their legs while walking, achieving similar results to vertebrates like humans or cats. This discovery emphasizes how insects can use simpler mechanisms to achieve complex behaviors with fewer neurons.

SourceCell Press·JournalCurrent Biology·DateDec 24, 2009