Beetles that taste like mustard
Flea beetles sequester glucosinolates without triggering the plant's defense mechanism. They utilize the compounds for their own communication and defense against predators.
Beetles
Articles tagged with Beetles
Emerald ash borers were in US long before first detection
Research reveals EABs were feeding on ash trees in southeast Michigan by the early 1990s, well before their discovery in 2002. The study used tree ring analysis to track the spread of the invasive species across over 5,800 square miles.
Bigger is not always better, but it helps, says new research on beetles
Researchers at the University of Exeter found that burying beetle size depends on a combination of early life experiences and adult competition. Beetles with good nutrition as larvae had an advantage over those with poor nutrition, especially in high-competition contests.
Sexual conflict affects females more than males, says new research on beetles
Researchers found that costly mating behaviors in females reduce overall reproductive productivity due to their primary role as caregivers. Artificial selection experiments revealed no change in male parental care behavior despite increased mating rates, highlighting the importance of female-led parental care.
Getting at the root of the mountain pine beetle's rapid habitat expansion and forest
Researchers analyzed the mountain pine beetle's genome and identified potential genetic markers that enable its rapid habitat range expansion. The study found that the beetles can adjust their cellular functions to withstand cooler climates, facilitating a larger geographic dispersal area.
Earth Week: Bark beetles change Rocky Mountain stream flows, affect water quality
Research by hydrologists and scientists found that the death of millions of trees in Rocky Mountain regions due to bark beetles increases groundwater flow and changes water quality. The study used water chemistry to identify the source of streamflow and found a significant increase in late-summer groundwater contributions.
Photo: Tiger beetle's chase highlights mechanical law
A team of researchers led by Jane Wang from Cornell University has discovered a proportional control law in the tiger beetle's chasing behavior. The study reveals that the beetle uses a sideways force proportional to its prey's angular position to turn towards it.
The ATM strikes back
Researchers developed a self-defending surface that releases hot foam to deter attackers, protecting cash boxes in ATMs. The film is made of plastic layers filled with chemicals that mix when damaged, producing a violent reaction.
New yeast species travelled the globe with a little help from the beetles
Researchers have identified a new yeast species that travels the globe with beetles, offering hope for developing renewable fuels. Preserving biodiversity is crucial to unlock the microbial life's potential solutions to global challenges.
Stag beetle males give nasty nips despite massive jaws
Male stag beetles have enlarged heads and muscles to compensate for their oversized mandibles, allowing them to generate powerful bites. Their male bites are six times stronger than females', with a recorded strength of 7N.
Male Eurasian jays know that their female partners' desires can differ from their own
New research shows that male Eurasian jays can respond to their female partner's desire, even when it conflicts with their own. The study found that males can inhibit their own biases and prioritize their partner's wishes.
Diet of elusive red widow spider revealed by MU biologist
Researchers have shed light on the red widow spider's restricted diet, revealing it primarily preys upon five species of scarab beetles endemic to the Florida scrub habitat. This finding highlights the need for habitat conservation efforts in this unique ecosystem.
Success of new bug-fighting approach may vary from field to field
Researchers found that western corn rootworm beetles resistant to crop rotation are less vulnerable to RNAi treatment, surviving longer on soybean leaves. The study suggests targeting a single gene may not be the best strategy for controlling pests.
Large mammals were the architects in prehistoric ecosystems
Research shows that temperate ecosystems consisted of a mosaic of closed and semi-closed forests and parkland created by large grazers. The study also found that woodland beetles were less dominant in the previous interglacial period than in the early Holocene, indicating a shift towards more forested landscapes after human arrival.
Asian longhorned beetles pheromone could be used to manage pest
Researchers discovered a female-specific pheromone that attracts males but repels virgin females, which could lead to managing the invasive Asian longhorned beetle. The team also found that sexually mature females continue to produce this pheromone after mating, potentially benefiting both sexes.
Lost and found: New beetle collected by Darwin 180 years ago published on his birthday
A new beetle genus and species was discovered by Dr. Stylianos Chatzimanolis, named after Charles Darwin, based on a specimen collected in Argentina in 1832. Only two specimens of the species, Darwinilus sedarisi, are known, and most of its habitat has been transformed into agricultural fields.
Natural History Museum, London, yields remarkable new beetle specimens from Brazil
A new genus of rove beetles, Morphogenia, has been discovered in the Brazilian Amazon, featuring remarkable sexual dimorphism between males and females. The study highlights the vast number of species within this group, with over 9,000 known species, yet much still to be discovered about their ecology.
Mitochondrial genes matter!
Research at Uppsala University found that rare mitochondrial genes are associated with better survival and reproductive outcomes in a common beetle species. The study suggests that these genetic variations play a crucial role in maintaining genetic diversity.
Trapping insects by color: Will it work in Montana?
A new study tests the effectiveness of color-based traps against major pests in Montana, finding that red and green traps are most effective. The researchers also discovered that insects use chromatic cues to identify colors and will pursue further studies on this topic.
Slippery bark protects trees from pine beetle attack, according to CU-Boulder study
A new study by CU-Boulder found that trees with smoother bark can repel mountain pine beetles more effectively. The researchers tested how well the beetles could cling to different bark textures and found that only 21 of 22 beetles could stick to rough bark, while all fell off smooth bark in under a minute.
91 new species described by California Academy Of Sciences in 2013
The California Academy of Sciences discovered 91 new plant and animal species in 2013, including 38 ants, 12 fishes, and 14 plants. This finds highlights the importance of biodiversity hotspots like Madagascar and the need for continued exploration and conservation efforts.
ABC transporters enable leaf beetle larvae to accumulate defensive precursors when feeding
Scientists discovered that ABC transport proteins, found in glandular cells of leaf beetle larvae, enable the accumulation of defensive substances like salicyl aldehyde. This process allows the larvae to save energy by synthesizing toxins only when needed.
NERC announces the winner of its first photo and essay competition
The Natural Environment Research Council (NERC) has announced the winners of its inaugural short article and photography competition. Laura Hepburn's essay on underwater hydrothermal vents won the top prize, while Paul Hopwood's image of burying beetles processing an animal carcass took second place in the photography section. The comp...
Beetles that live with ants: A remarkably large and colorful new species from Guyane
Scientists describe a new, large, and colorful beetle species from French Guiana that lives among ants, defying the dull coloration of its relatives. The newly discovered species, Guyanemorpha spectabilis, belongs to the Pseudomorphini Tribe and is comparable to the Olinguito, a carnivore species recently described in ZooKeys.
Bait research focused on outsmarting destructive beetle
A new study from the University of Alberta has identified key tree chemical compounds that play critical roles in the beetle's pheromone production and attraction. The research reveals that adding a volatile tree chemical to bait can increase beetle capture rates, providing hope for quicker monitoring and early detection of infestations.
Volunteers join scientists in finding out who gets rid of cow dung
A team of scientists collaborated with local volunteers to measure dung decomposition across Finland. Large tunnelling Dor beetles were found to remove dung twice as fast as smaller dung-dwelling beetles and earthworms. Climate also played a significant role in dung disappearance.
The mysterious scarab beetles: 2 new species of the endangered ancient genus Gyronotus
Two new species of the endangered ancient genus Gyronotus have been described from southern Africa, revealing unusual distribution patterns among these vulnerable beetles. The discovery highlights the importance of conserving biodiversity in grasslands and savannas, which are currently under threat due to massive environmental changes.
Unearthed: A treasure trove of jewel-like beetles
A total of 116 species of jewel-like beetles have been identified in the genus Baconia, known for their brilliant coloration and flattened body forms. The new species were discovered through studies of museum collections and fieldwork, shedding light on a previously underappreciated group of clown beetles.
Massive spruce beetle outbreak in Colorado tied to drought, according to new CU study
A new CU study finds drought is a better predictor of spruce beetle outbreaks in northern Colorado than temperature, with warm and dry conditions causing stress in host trees. The study also suggests that climate fluctuations, including the Atlantic Multi-decadal Oscillation, contribute to drought conditions.
New species of fascinating opportunistic shelter using leaf beetles
Two new species of southern Indian leaf beetles, Orthaltica eugenia and Orthaltica terminalia, have been discovered using existing holes in leaves to construct shelters. The beetles also modify and use artificially made holes, partitioning them with their own fecal pellets to create optimal hideouts.
Do beetles have maternal instincts?
Researchers found evidence of maternal care in eight species of Chrysomelinae beetles, including defense mechanisms against predators and parasitoids. The study reveals complex subsocial behaviors and provides insight into the natural history of these insects.
Microbes help beetles defeat plant defenses
Researchers discovered that symbiotic bacteria inside beetles suppress plant defenses against chewing insects, allowing beetles to thrive. The findings suggest a new way plants can be vulnerable to insect attacks.
Biodiversity where you least expect it: A new beetle species from a busy megacity
Researchers at Ateneo de Manila University discovered a new species of aquatic beetle in a small creek within the university's campus. The tiny insect, Hydraena ateneo, is one of 14 known species of its genus and highlights the diversity of life in urban areas.
Pest-eating birds mean money for coffee growers, Stanford biologists find
Stanford biologists found that leaving patches of rainforest in coffee plantations increases bird biodiversity and reduces borer beetle infestation rates. The birds' activity can increase yield by $75 to $310 per hectare, providing a sustainable win-win opportunity for pest management.
Beetles modify emissions of greenhouse gases from cow pats
Researchers found that beetles living in cow pats can reduce methane emissions from cattle farming. This discovery has significant implications for the climate impact of dairy and beef farming. The study suggests that if beetles can keep methane emissions down, it could lead to a smaller global warming effect.
Tahiti: A very hot biodiversity hot spot in the Pacific
Researchers have identified over 100 species of small predatory beetles in Tahiti, with 28 newly described in the open-access journal ZooKeys. These beetles have evolved to lose their flight wings and are highly specialized to specific habitats.
'Beetle in spider's clothing' -- quaint new species from Philippine Rainforest Creeks
A new species of Spider Water Beetle, Ancyronyx buhid, has been discovered in the Philippine Rainforest Creeks, showcasing the country's diversity as a global hotspot. The beetle's unique characteristics make it an ideal bioindicator species for healthy ecosystem conditions.
New Journal of Integrated Pest Management articles useful for farmers and military
The latest issue of the Journal of Integrated Pest Management features articles on controlling corn earworms, beetles, and other pest management issues. The Research Program for Deployed Warfighter Protection also highlights its accomplishments in developing new public health pesticides and repellent systems.
Avocado farmers face unique foe in fungal-farming beetle
Researchers have identified nine fungal lineages associated with ambrosia beetles threatening avocado production in the US and Israel. The unique fungi adaptability poses a threat to global farms and forests.
Big name for a small worm
A newly discovered threadworm, Pristionchus maxplancki, has been named after physicist Max Planck in recognition of his contributions to the fields of evolution, genetics, and ecology. The worm was discovered on a stag beetle in Japan and is now being studied by researchers at the Max Planck Institute for Developmental Biology.
Rotation-resistant rootworms owe their success to gut microbes
Researchers discovered that gut microbes in rotation-resistant Western corn rootworms facilitate their ability to feed on soybean leaves and tolerate the plant's defenses. The study found significant differences in bacterial species abundance and digestive enzyme activity between resistant and nonresistant beetles.
A bit of good luck: A new species of burying beetle from the Solomon Islands Archipelago
Scientists have discovered a new species of burying beetle, Nicrophorus efferens, in the Solomon Islands Archipelago. The species was found after six specimens were identified as possibly new by PhD student Tonya Mousseau during a visit to the Bishop Museum.
Older males make better fathers says new research on beetles
A study by the University of Exeter found that older male burying beetles invest more in parental care than younger counterparts, as they have less chance of reproducing again. This investment is driven by a desire to reduce the likelihood of female infidelity.
Asian lady beetles use biological weapons against their European relatives
The Asian lady beetle uses microsporidia to outcompete native species, producing a strong immune system with antibacterial peptides and harmonine. This allows it to successfully invade new habitats and ecosystems, displacing native beetles and other insect species.
SFU researchers help unlock pine beetle's Pandora's box
A team of SFU researchers has created a sequencing of the mountain pine beetle's genome, revealing large variations among individuals. The genome data will help scientists understand how the beetle causes damage and potentially stop its spread.
Reviewing the work of 1 of the greatest beetle collectors: Napoleon's General Dejean
Two Canadian scientists, Dr. Yves Bousquet and Dr. Patrice Bouchard, have updated the nomenclatural and taxonomic data in Pierre Dejean's Coleoptera catalogs. The review of the second (1833) and third (1836) catalogues revealed new synonymies and clarified the usage of genus-group names.
Ozone masks plants volatiles, plant eating insects confused
Researchers found that high ozone levels interfere with pollinators finding flowers and predator insects finding host plants. Insects rely on volatile organic compounds to detect odors, but ozone degrades these compounds, leading to confusion.
Papuan phonebook helps scientists describe 101 new beetle species
German researchers use DNA sequencing and high-resolution photos to identify over 100 previously unknown beetle species in New Guinea's tropical rainforests. The study employs innovative methods, including utilizing the Papuan phonebook to assign names to newly discovered species.
Mountain pine beetle genome decoded
The mountain pine beetle genome has been sequenced to understand its behavior and adaptability, revealing large genetic variation among individuals. The study also identified genes involved in detoxifying defense compounds and degrading plant cell walls, which could inform future management strategies.
Pining for a beetle genome
The mountain pine beetle's genome has been sequenced, revealing genes involved in tree colonization and potential sex chromosomes. This knowledge could help develop more effective control methods for this devastating pest.
New beautifully colored long-horned beetle from Yunnan, China
A new species of long-horned beetle has been discovered in Yunnan Province, China, characterized by its striking blue-greenish body and blue legs. Seven previously unknown species have also been recorded from the region, including rare ones found only in China, Myanmar, and Vietnam.
4 new species of water-gliding rove beetles discovered in Ningxia, China
Two new species of Dianous and two new species of Stenus have been discovered in the Liupan Shan Natural Reserve. The beetles possess a unique ability to glide on water due to special gland secretions.
Little did we know about beetle diversity: Astonishing 138 new species in a single genus
Researchers have identified 138 new species of beetles within the Operclipygus genus, significantly expanding our understanding of tropical insect diversity. The study, published in ZooKeys, reveals that these tiny beetles play a crucial role in controlling pest populations and highlights the need for continued conservation efforts.
Decoys could blunt spread of ash-killing beetles
Researchers create female emerald ash borer decoy using polymers, allowing for more efficient trapping and detection of male beetles. The decoy is 40% more effective than previously used methods, paving the way for swift control of the pest.
Pest uses plant hairs for protection
A tiny insect that eats plants has developed a unique strategy to evade its beetle predator: using the plant's trichomes for physical protection. This clever tactic allows the pest to crawl between the plant hairs and feed on cycad sap, while the larger beetle cannot follow suit.
Dartmouth research offers new control strategies for bipolar bark beetles
A Dartmouth study suggests that increasing competitor and predator beetle populations can prevent population explosions of pine beetles, a major forest pest. The research confirms that some species, like the southern pine beetle, exhibit extreme fluctuations in abundance with no middle ground.
Dung beetles follow the Milky Way
African ball-rolling insects guide themselves along straight paths under starlit skies but lose orientation under overcast conditions. Dung beetles exploit celestial cues like the Milky Way for navigation, suggesting other nocturnal insects might follow suit.
Dung beetles use stars for orientation
Scientists have discovered that dung beetles use the Milky Way's gradient of light to ensure they keep rolling their balls in a straight line. The beetles' ability to orient themselves using this method has been proven, giving them an advantage in navigating their environment.
CU-led study shows pine beetle outbreak buffers watersheds from nitrate pollution
A CU-led study reveals that pine beetle outbreaks do not harm adjacent stream water quality, but instead increase the uptake of nitrates by smaller trees and understory vegetation. This compensatory response provides potent water quality protection in western forests.
Lady beetle diet influences its effectiveness as biocontrol agent
A study by US Department of Agriculture scientists found that a lady beetle's diet influences its feeding patterns and physiology. The research suggests that plant material provides key nutrients lacking in insect prey diets, making mixed diets healthier for the beetles.