Articles tagged with Beetles
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A type of beetle that lives in stored grain has been found to lack full colour vision. The red flour beetle's compound eye retina lacks the blue-opsin encoding photoreceptors, violating the 'one receptor rule' of sensory cells. This adaptation may have provided an evolutionary advantage.
A recent study on the burying beetle found that parents instinctively favor older offspring, leading to unequal growth rates among siblings. The researchers believe this bias is due to both increased survival value and dominance in younger siblings.
Researchers at Virginia Tech study a Japanese beetle that may curb the spread of HWA without damaging forest ecosystems. The beetle has shown encouraging results in previous releases, and scientists hope it will be an effective natural enemy against the invasive insect.
A study by Oregon State University researchers identified a soldier beetle preserved in amber, showcasing an ancient chemical defense response. The discovery indicates that this type of protective mechanism has been around for over 100 million years.
A study by Dr. Martin Edvardsson found that dehydrated female beetles mate more frequently with males to obtain water from their seminal fluid, a strategy that benefits the male by extending the time before fertilization competition resumes. The research sheds new light on the role of 'nuptial gifts' in insect courtship and mating.
Researchers used X-ray images to study tracheal systems in four beetle species, finding that larger beetles devote more space to tracheal tubes. This discovery suggests that leg size is a key limiting factor for insect body size, explaining the extinction of giant insects.
Research by the University of Illinois found that elevated CO2 levels increase the susceptibility of soybeans to Japanese beetles and enhance their invasive abilities. This study highlights the potential risks of climate change on crop defenses, particularly for highly usable crops like soybeans.
Researchers found rove beetles declined significantly after clear-cutting, while diversity increased. The study suggests that mature forest species are threatened by habitat loss, highlighting the need for conservation efforts to preserve old forests.
Researchers found that small hive beetles can detect some alarm pheromones at levels below those detected by honeybees. The beetles associate the alarm chemicals with a good food source and head for the hive. Domesticated European honeybees are not as diligent in cleaning their hives, making them more susceptible to infestation.
Scientists at NIST develop a flexible technique to mimic the desert beetle's warty wing covers, which can shift rapidly from hydrophobic to hydrophilic. The method uses ultraviolet light and photosensitive materials to control surface structure and chemistry, enabling rapid testing of paints, adhesives, and other coatings.
A recent study by Dr. Jesús Gómez-Zurita and collaborators found that phytophagous leaf beetles (Chrysomelidae) radiated independently of their host plants, with origins dating back to the late Cretaceous period. This challenges the long-held coevolution hypothesis, suggesting a more complex evolutionary process.
Researchers at Iowa State University identified four chemicals in ladybugs that cause a foul smell, which can lead to 'ladybug taint' in wine. These compounds, including a new one not previously reported in ladybugs, are potent odor-producing molecules also found in other animals and plants.
Researchers at the University of Exeter have discovered a unique surface structure in the Cyphochilus beetle that creates its brilliant whiteness. This innovative design could lead to improved ultra-thin materials for various industries.
Researchers discovered that Onthophagus horned beetles use their young horns to bust out of thick larval shells, a function previously unknown. The finding suggests that the evolution of adult horn shape may have occurred secondarily, with the initial function being for larval molting.
A new genetic analysis has revealed that flies and moths are most closely related to beetles, contrary to previous theory. This finding suggests that the ability of insects to cooperate in social groupings may have evolved just once, rather than independently in several different species.
A new study suggests that some insects could have grown larger during the late Paleozoic period due to higher oxygen levels. The tracheal system of insects allows them to transport oxygen efficiently, but this system limits their growth.
Researchers studied gene regulation in fruit flies and beetles, finding that some genes are necessary for both species to make segments. The findings will help better understand the basic process of segmentation and its genetic regulation.
The emerald ash borer's invasive beetle population is rapidly spreading in Ontario's ash forests, despite containment efforts. The insect's distribution expanded dramatically in 2004, infecting new sites beyond a previously created firewall in Essex County.
Researchers at Cornell University have developed a beetle-inspired switch that uses surface tension to create bonds, opening up possibilities for powerful adhesive bonding in arrays. The switch can be scaled down to the size of a micron and operates using water and electricity.
Researchers found that knocking out laccase-2 enzyme prevents tanning in red flour beetle, revealing protein responsible for hardened exoskeleton. The discovery opens possibilities for developing new insecticides and bio-rational methods to control pest populations.
University researchers have discovered a key gene in the monoterpene biosynthesis of bark beetles, which could lead to new methods to disrupt aggregation pheromone production. This breakthrough may help control devastating insect infestations such as those affecting Lake Tahoe and Western forests.
Researchers found that alarm pheromone triggers aphids to produce winged offspring and leave their host plant. Applying pulses of alarm pheromone could help reduce damage caused by aphid infestations in European fields.
Entomologists Quentin Wheeler and Kelly Miller named three slime-mold beetle species after former US leaders Bush, Cheney and Rumsfeld. The decision was made to pay homage to the U.S. leaders' commitment to freedom and democracy.
A systematic survey of over 820 species found 174 species of carabid beetles with only one testis. The researchers discovered that the monorchid beetles' accessory glands were larger than normal, suggesting a possible link to space competition in the abdomen.
A team of scientists has identified an enzyme called CYP4AW1 that breaks down insect pheromones, allowing for the development of targeted treatments to prevent agricultural pests from breeding. By blocking this enzyme with a specific chemical, researchers may be able to disrupt the communication between insects and prevent infestations.
Researchers at the University of Bonn have developed a forest fire sensor based on a beetle's infrared sensing organs. The sensor uses polyethylene to mimic the beetle's cuticula and absorbs radiation, triggering an early warning system.
Researchers at Kansas State University are using the red flour beetle's genome to identify regions important for directing gene activity. The study aims to develop new strategies of insect control and advance understanding of insect genetics and development.
Researchers at Kansas State University have been chosen to sequence the red flour beetle's genome as part of a multimillion-dollar project. This will enable new experimental approaches and strategies for controlling harmful insects.
A new vacuum technology has been developed to control insects in solid wood packaging materials, providing an alternative to current methods. The system creates a low-oxygen environment that eliminates insects in several hours to days.
Researchers from Field Museum and American Museum of Natural History analyze museum specimens to understand genetic variation of the Northeastern Beach Tiger Beetle. They discover more genetic variation across historical range, suggesting human impacts led to fragmentation of populations.
Researchers have discovered that insects breathe rapidly in a manner similar to lungs, with tracheal compression and expansion exchanging up to 50% of air every second. This new technique, utilizing synchrotron x-ray beams, opens doors to studying animal functions, biomechanics, and movements.
Using six years of beetle population data, researchers improved modeling tools for explaining fluctuations in animal numbers. The study found that combining different models and considering lattice effects can provide a more accurate understanding of population patterns.
Researchers observed high numbers of corn rootworm beetles near corn edges in prairie remnants, with 10 times more at the edge than at a distance. The beetles damage sunflowers, potentially reducing seed set and affecting pollinator visitation.
The tortoise beetle uses its own feces to create a shield that deters most predators, but one predator, the carabid beetle, can penetrate it. The larvae attach fecal strands to their bodies and repair them if damaged, creating an almost impenetrable defense mechanism.
Researchers Ally R. Harari and Jane Brockmann studied the behavior of Diaprepes abbreviatus beetles, finding that mounting females attracts larger males, improving female reproductive success. The beetle's behavior appears to suggest a different explanation for homosexual behavior than observed in domesticated animals.
A European beetle is expected to spread throughout Canada, posing a major threat to the forestry industry. The Introduced Pine Shoot Beetle has few natural enemies in Canada, making it a voracious insect that can feed on various pine species.
A team of Cornell University researchers discovered that beetle pupae can create hundreds of deterrent compounds using combinatorial chemistry. The pupae secrete these complex chemicals through microscopic body hairs, thwarting most predators and ensuring their survival in the field.
Researchers at Penn State aim to protect crops by targeting insect taste buds, which are a direct connection between the central nervous system and the outside. By identifying chemicals that stimulate or suppress feeding behavior, scientists hope to develop more effective control methods for corn rootworm pests.
Researchers find that competition for resources affects organ growth, leading to changes in traits like wings and horns. This phenomenon resolves a conundrum identified by Charles Darwin, suggesting that genes are not the sole determinant of development.
Scientists say Western corn rootworms are changing behavior, laying eggs in soybean fields instead of corn, due to crop rotation failure. The beetles' adaptation poses a significant threat to corn crops in the Midwest, potentially costing $100 million per year to control.
Researchers discovered that tiger beetles' ability to see shuts down when accelerating towards prey due to insufficient photon gathering. This unique behavior results in the insect's stop-and-go chase pattern, allowing it to temporarily regain its vision and catch its prey.
A new species of ground beetle, Platynus indecentis, has been officially named and described by entomologists at Cornell University. The beetle was found in the Ithaca area and has a natural range extending from Maine to Ohio and Ontario to Maryland.
Recent insect fossil discoveries show that beetles and ants played a crucial role in recycling nutrients in Jurassic ecosystems. The findings, published by University of Colorado at Boulder researcher Stephen Hasiotis, provide new insights into ecosystem health and biodiversity.
The Asian longhorned beetle is attacking Brooklyn's horsechestnut and Norway maple tree population, which are under immense pressure due to urbanization. The beetle's larvae can weaken trees structurally, posing a significant threat to the city's tree population.
Researchers are investigating the history of forests, fire incidence, and signs of early settlers in the Lake Tahoe Basin due to a bark beetle infestation. The study aims to reconstruct the forest structure before logging, the history of fire in the area, and the age of trees.
The Southern Pine Beetle is the most aggressive and destructive of five bark beetles that feed on southern pines, causing $900 million in damage to U.S. pine forests from 1960 through 1990. Forest owners and homeowners need to take control measures if they spot the beetle, as it can be a costly pest.
In a study by Cornell University, male fire-colored beetles (Neopyrochroa flabellata) entice females with a chemical offering containing cantharidin. The female ingests the chemical, which is then transferred to her eggs, protecting them from predators. This unique strategy highlights the resourcefulness of male insects in seeking mates.