Articles tagged with Larvae
Researchers found six compounds in 'Early Black' cranberry leaves that may deter insects, with gypsy moth larvae preferring these cultivars over 'Howes'. The identified compounds could be investigated as potential insect-feeding deterrents for new cranberry cultivars.
Researchers found that Hessian flies can trigger strong defenses in wheat plants, causing them to release essential nutrients to the insects. However, avirulent larvae can sometimes survive by reversing these defenses, potentially extending the durability of resistance.
Increasing ocean acidity poses significant threats to northern abalone populations, with exposure to higher CO2 levels killing 40% of larvae and reducing their size. This could limit population growth and have cascading effects on coastal ecosystems.
Researchers discovered how semaphorin proteins guide nerve cell projections with precision, enabling intricate connections in the nervous system. This finding has implications for developing treatment strategies for repairing and regenerating damaged or diseased nerve cells.
Researchers have discovered that massive ocean eddies can reach the ocean bottom at mid-ocean ridges, transporting larvae, chemicals, and heat. This phenomenon helps explain how larvae travel huge distances from one vent area to another.
A recent study by Max Planck Institute researchers discovered that ants can recognize the distinctive body odor of caterpillars after they consume sugary secretions from wild tobacco plant trichomes. The caterpillars develop a unique odor profile, which is then detected by predatory ants, making them easier to locate and feed on.
Researchers at the University of Gothenburg have developed a method to study lake-bottom sediments and infer fish death in acidified lakes. By analyzing microscopic remains of dead midge larvae, they can recreate the history of the lake back to the early 19th century.
Ecologists have developed a new method for rearing honey bee larvae in the laboratory, allowing researchers to study the causes of their decline more effectively. The technique, which uses an artificial plastic honeycomb, has shown high survival rates and improved data analysis capabilities.
A fundamental change in the genome of leaf beetles has emerged, resulting in the loss of salicylaldehyde-producing enzyme salicyl alcohol oxidase in birch feeders. This adaptation allows birch beetles to save resources by not producing the enzyme, which is only needed for willow feeders.
Researchers found that rhodopsin, a retina pigment, plays a role in detecting temperature sensations in fruit flies. The discovery reveals a new function of rhodopsin beyond its well-known role as a light sensor.
Researchers found that a light-sensing receptor called rhodopsin plays a critical role in sensing temperature, particularly in the comfortable range. The discovery suggests that rhodopsin may have been used originally for temperature detection before its function as a light receptor.
A recent study reveals that coral reef networks across the Asia-Pacific region play a crucial role in preserving fish and marine resources. The research, led by Dr. Johnathan Kool, found that the Coral Triangle's diversity and resilience rely on connections between reefs in the South China Sea, West Pacific, and Solomon Islands.
Researchers have developed a method to disperse pathogenic fungi as a means of preventing malaria spread, using synthetic oil to increase dispersal effectiveness. The fungi cause muscardine disease in mosquito larvae, killing up to 50% more larvae than untreated spores and reducing pupation levels.
Researchers found that coral larvae with redder fluorescence are less likely to settle into polyps, while greener larvae tend to disperse. This discovery could help monitor corals' adaptation to global warming.
Antennal drumming behavior has been linked to development of social caste in a native paper wasp, Polistes fuscatus. The new work shows that exposure to simulated antennal drumming biases developing larvae toward the physiological characteristics of workers rather than gynes.
Research on fire salamander larvae reveals that accelerated development comes with a higher risk of mortality, highlighting the need for further study on human development and its relationship with environmental challenges. The study found that larvae that developed more quickly suffered greater rates of mortality.
Ecologists developed a series of new methods to monitor stag beetle numbers using ginger lures and tiny microphones detecting larvae sounds. These methods offer promise for conserving this rare species by providing an accurate picture of its abundance.
In a sex role reversal, females actively court males after being exposed to cool, dry temperatures as caterpillars. Females raised in cooler conditions live longer lives compared to those mated in the hotter season.
Research reveals parallels between immunity and cancer, with acute inflammation compared to chronic inflammation in mammals. The immune system that counters parasitoid wasp infections is highly restrained, but goes haywire when regulating mechanism fails, leading to cancer development.
Marine ecologists at Oregon State University have shown that tiny fish larvae can drift with ocean currents and replenish fished areas long distances. This discovery adds credibility to the effectiveness of marine reserves in rebuilding fishery stocks, providing a significant demonstration of their ability to sustain fisheries beyond t...
Researchers discovered that corn rootworm larvae's nasty blood repels certain predators like ground beetles and ants. However, wolf spiders have a hearty appetite for the insects, making them an important predator in controlling corn rootworm populations.
Researchers have identified a miniature ecosystem consisting of a plant and a tiny fly that spends its entire life cycle on the plant. The discovery provides a model system for studying plant-insect interactions on a genetic and molecular level.
The Eastern marsh helleborine orchid produces alarm substances that mimic aphid pheromones, attracting five species of hoverflies. Hoverfly females lay eggs in the flower, which also provides a small amount of nectar as a reward.
A new species of parasitic wasp, Eurytoma erythrinae, has been released in Hawaii to combat the invasive Erythrina gall wasp, which harms endemic wiliwili trees. The parasite's high success rate has led to significant declines in tree damage.
A WCS study found that higher temperatures and rainfall in Argentina result in more parasitic fly larvae, leading to increased mortality and impaired growth for chicks. The researchers also found a positive correlation between climate variables and parasite loads on nestlings.
New Caledonian crows use tools to extract wood-boring longhorn beetle larvae from burrows, providing a nutritious food source. The crows' tool use is energy-efficient and profitable, suggesting that unusual foraging opportunities have selected for their sophisticated behavior.
Scientists discovered that plants release (E)-2-hexenal, a compound produced after oral secretions of Manduca sexta larvae are applied to wounded leaves. This attracts carnivores like Geocoris, which feed on the caterpillars and their own natural enemies.
The larvae of the sunburst diving beetle have been found to possess bifocal lenses in four of their twelve eyes, allowing for efficient switching between close-up and distance vision. This discovery has implications for biomedical engineering and imaging technology, with potential applications for humans.
Researchers studied two butterfly species, finding that genetic variables affect their ability to relocate due to global warming. The study suggests that some species may be more adapted to warmer temperatures than others.
Kansas State University researchers have successfully used gene-silencing nanoparticles to kill mosquito larvae and make them more susceptible to pesticides. This technology has the potential to revolutionize insect control, targeting specific pest species while being environmentally friendly.
Engineers at MIT develop a new technique to analyze zebrafish larvae in seconds, speeding up the process and enabling large-scale studies of human diseases. The technology uses high-resolution imaging to directly observe internal organs and allows for rapid analysis of thousands of vertebrates.
A new molecular technique can detect Anisakis larvae in all types of fish, including processed products, using high specificity and sensitivity. This method offers a quick and effective solution for seafood inspection, replacing traditional visual examination and digestion methods.
Researchers at Arizona State University have discovered that the insulin signaling pathway is crucial for caste development in honeybees. By manipulating this pathway, scientists can determine whether a larva will become a worker or queen bee. This study provides valuable insights into human biology and aging, as well as the importance...
Researchers have successfully improved nematodes to control the western corn rootworm, a major pest causing $1 billion of damage annually in the US. The nematodes were enhanced to respond more effectively to a volatile signal emitted by infested roots.
Scientists have discovered how corals respond to ocean warming, shedding light on potential methods for preserving or restoring coral reefs. The research found that some corals cope better with heat stress than others due to genetic variability, offering new insights into coral reef restoration.
Researchers are using a robotic submarine and sensors to gather data on larval fish growth and survival in Lake Michigan. They're correlating growth rates with water temperatures, wind patterns, and other environmental factors to understand how climate change may affect young fish.
Researchers have discovered a new parasite, Edwardsiella, living on the American comb jellyfish that causes skin irritation in humans. The parasite's larvae may be problematic for Swedish sea bathers during late summer beach season.
Scientists at Cornell University found that compounds in Guatemalan potato moth larvae saliva increase photosynthesis and starch production in commercial potato plants, resulting in bigger tubers. Yield increases were observed when 10-50% of potatoes were infested, with marketable yields doubling or tripling.
Researchers found that gene activity and protein levels in young paper wasp larvae predispose them to one caste or the other. Queens have high levels of proteins enabling survival and reproduction, while workers are shorter-lived and biased toward the worker role.
Researchers found that resistant wheat plants under attack by Hessian fly larvae increase production of surface waxes and cutin, a molecule responsible for rigidity and integrity of epidermal cells. Susceptible plants have genes turned off, making them more permeable to the larvae.
Researchers discovered that coral larvae can detect sound waves to locate suitable habitats, which is essential for their survival. The study highlights the importance of understanding how corals respond to their environment, particularly in light of human noise pollution.
Researchers discovered a rare species of solitary bee that lines its underground nests with petals from various flowers. This unique behavior provides essential nutrients for the larvae's growth and protects them from the harsh winter conditions.
Researchers found that larvae of a new species, Ctenopelta porifera, traveled over 300 kilometers from a nearby population to settle in the affected area. The discovery challenges the widely accepted assumption that life re-populates an area through local adult populations.
Researchers conducted a genetic survey of moray eels across the Indo-Pacific, revealing genetically homogeneous populations with only two species showing notable differences. The team's findings contradict predictions that longer pelagic duration would lead to greater genetic diversity among species.
A protein called Kibra has been found to regulate organ size by controlling cell growth and death. This discovery may hold the key to understanding and treating cancer.
Researchers found that female moths outgrow their male counterparts by initiating a developmental change later in life, resulting in larger adult moths. This study provides insight into the evolution of sexual size dimorphism in moths, highlighting the importance of early developmental stages in determining adult body size.
Researchers found barnacle communities flourish in vertical-upwelling zones with strong currents, contradicting previous theories. The study's findings suggest that barnacles latch onto rock walls due to constant bouncing against rocky surfaces, ultimately leading to the formation of thriving crustacean populations.
Researchers discovered that caddisfly larvae's underwater silk adhesive is sticky and has potential to be used as a medical bioadhesive in surgery. The silk, known as 'rock rollers,' may be useful for sticking wet tissues together, similar to using a wet Band-Aid.
Beewolves have evolved a symbiotic relationship with bacteria of the genus Streptomyces that produce nine different antibiotics, providing effective protection against various pathogens. This natural defense mechanism, known as combination prophylaxis, has been used by beewolves for millions of years to safeguard their offspring.
Researchers at Purdue University have discovered that resistant wheat plants stave off attacks by Hessian fly larvae by destroying their midgut and preventing nutrient absorption. The study found that the midgut disruption is caused by a toxic substance called lectin, which is produced by the plant in response to the fly's presence.
A previously unknown predatory thrips species, Karnyothrips flavipes, has been identified as a predator of the coffee berry borer, Hypothenemus hampei. This discovery could have significant implications for integrated pest management in coffee-producing countries.
A study found higher Anisakis spp presence in anchovies from Atlantic South East coast and Mediterranean North West coast. Freezing or cooking fish can reduce the risk of anisakiasis.
The University of Colorado is launching a butterfly experiment on the International Space Station on November 16, monitoring the growth and development of monarch and painted lady butterflies in weightless conditions. Thousands of K-12 students across the nation will compare the results with similar experiments on Earth.
Researchers at the University of Bonn have identified a previously unknown gene in fruit flies that controls fat metabolism. The gene, called 'schlank', is structurally similar to genes found in humans and may play a role in energy metabolism. Introducing mouse Lass genes into mutant flies showed promise for new obesity treatments.
Researchers at Stony Brook University found that high levels of carbon dioxide in seawater hinder the growth and survival of bivalve larvae, leading to a significant decline in shellfish populations. The study suggests ocean acidification poses an equally serious risk to ocean resources.
A 23-year study by Javier Lobón-Cerviá reveals that environmental conditions, including river flow and temperature, significantly impact trout populations. The research shows that optimal conditions for young trout development are characterized by average river flow and suitable temperatures.
Research in Drosophila larvae reveals that 5-HT and corazonergic neurons regulate photobehavior, increasing aversion to light during foraging phase. The study provides new insights into the function of 5-HT neurons and mechanisms underlying regulation of larval response to light.
A tiny fly, the midge Corethrella appendiculata, eats more of the invasive Asian tiger mosquito larvae than native Eastern treehole mosquito larvae. This allows native mosquitoes to survive despite being outcompeted by the invasive species.
Researchers found a surprising tendency for Northern shrimp eggs to hatch and larvae to appear near spring phytoplankton blooms, which are triggered by temperature and sunlight. This timing is strongly dependent on local bottom water temperatures, suggesting that the species has evolved to maximize larval survival.
A new study reveals the remarkable ability of marine fish larvae to disperse over long distances, connecting populations across marine protected areas. The research provides critical insights into larval dispersal patterns, which affect population resilience and ecosystem dynamics.