Articles tagged with Larvae
Researchers studied zebrafish larvae's hunting behavior using virtual reality, revealing two unknown types of neurons involved in processing movement stimuli. The findings show that the larvae's brain must filter and evaluate visual information rapidly to select appropriate motor patterns.
Researchers have discovered that parasitic wasps can drain calcium from fruit fly blood cells to suppress their immune systems. This finding provides new insights into how pathogens break through a host's defenses and could lead to the development of new treatments for human immune disorders.
Researchers studying Nematostella, a simple sea anemone, discovered that cells begin thickening and then thin out as tentacles elongate. This process drives the formation of basic epithelial appendages, revealing fundamental principles in animal body construction.
A new species of leaf miner from the Gracillariidae family has been discovered in Brazil, exhibiting a unique life cycle. The species, Spinivalva gaucha, does not have a sap-feeding instar and instead feeds on upper leaf tissue from hatching.
Two new species of Ypsolophid moths have been discovered in the Russian Far East by Russian scientists. The discovery adds to the existing 30 known species of Ypsolophids worldwide, highlighting their thermophilic nature and increasing global biodiversity awareness.
Researchers at UC Davis found that turbulence in waves signals purple sea urchin larvae to start searching for suitable habitat. The two-step process involves an initial response to turbulence, followed by a chemical signal triggering settlement and transformation into juvenile sea urchins.
Researchers at Harvard Forest discovered a diverse array of organisms inside carnivorous pitcher plants, including bacteria, midge larvae, and rotifers. The study found that predator-prey interactions play a key role in shaping the food web, with removing one species affecting others.
Researchers found that cobia larvae showed remarkable resistance to end-of-century acidification scenarios, but reduced growth and development at more extreme levels. The study provides an optimistic outlook for this species, but highlights the need for further research on how fish react to ocean acidification.
Research in Papua New Guinea reveals that local community-led efforts to regulate fish catches benefit both the fishermen and their neighbors. The study found that many larvae produced by managed adults return to the same fish population, highlighting the effectiveness of cooperative management.
Researchers at the University of Notre Dame used genetic analysis to identify a harmless fruit fly in Washington state, preventing costly quarantine measures. The study's findings demonstrate the potential for rapid and accurate identification of insect species, which could have significant implications for agriculture and public health.
Three new species of parasitoid wasps were discovered in Papua New Guinea and Thailand, with the Thai species named after Beatrix Kiddo due to its deadly biology. The wasps' reproductive habits involve developing eggs in other insects and killing or immobilizing their hosts.
Researchers monitored WNV in California Culex mosquitoes and found that the virus is passed vertically from females to eggs, but with significantly lower rates when transmission occurs from larvae to adults. This loss of infection during larval development remains unclear.
Researchers at UGA discovered a neural pathway in fly larvae that triggers impulsive eating behavior when exposed to appetizing odors. This finding suggests that humans and flies share similar mechanisms for responding to rewarding cues, which can lead to compulsive eating.
Researchers discovered that metal ions cobalt, manganese, and magnesium control the production of different terpenoids in insect larvae, one for defense and another for juvenile hormones. This study highlights the importance of metal ions in regulating metabolic pathways and challenges the traditional view of enzyme specificity.
Two new species of gorgonian inhabiting barnacles have been found in São Tomé and Príncipe, demonstrating a unique ability to recognize and choose a preferred host. The high degree of symbiotic relationship is believed to be mediated by pheromones, allowing barnacle larvae to determine where to settle.
In a study published in Science, fruit flies were found to lay their eggs in an alcohol-soaked environment when sensing parasitic wasps, forcing larvae to consume booze to combat infection. The discovery suggests that using toxins in the environment to medicate offspring may be common across the animal kingdom.
Researchers discovered that ancient sea anemones use the same genes to form their heads as humans and other animals, providing insight into brain evolution. The study found that these 'head genes' control development of sensory centers in both sea anemones and higher animals.
Researchers found that male Eurasian Jays can share food with their female partner according to her current desire, suggesting a 'state-attribution' ability. This behavior is crucial for species living in long-term relationships and may improve mate bonding.
Two wasp species have been recorded as parasitoids of ant-eating spiders. The parasitic behavior involves the wasps attacking and using the spider's juvenile as food for their own development. This study highlights the unique relationship between these wasp species and the ant-eating spider, Zodarion styliferum.
A team of scientists has described 24 new species of dipterans belonging to the Quichuana genus, doubling the number of documented species in this genus. The discovery is especially important for establishing conservation methods due to the insect's relationship with its plant development environment.
Researchers developed a new testing reaction to identify active agents in mixtures of hundreds of substances. They found two compounds, cepafungin I and glidobactin A, which inhibit the proteasome, causing cancer cells to suffocate on their own waste.
Researchers at the University of Florida have discovered nearly 50 new species of leaf-mining moths in the Congo, doubling the number previously known from the region. The moths have unusual survival strategies and some species can delay plant aging.
A comprehensive study found that adult beetles of the European forest cockchafer species house the same microbial species as larvae, despite metamorphosing from one stage to another. The microbes include clostridia and other bacterial species that aid in digesting plant materials.
University of Illinois researchers have refined a model to describe the relationship between root injury caused by corn rootworm pests and yield loss. The model suggests that yield is reduced by 15% for each node of roots lost, with location and experimental error having statistically significant effects.
Research reveals that fly larvae fed alcohol-spiked food exhibit lasting changes in brain function, even after abstinence. This study provides insights into the neural mechanisms underlying ethanol dependence and its evolutionary roots.
Researchers are using an insect growth regulator called pyriproxyfen to prevent the maturation of house fly larvae. This technology has shown promise in controlling the spread of bacteria through these insects.
Researchers discovered that fruit fly larvae with simple eyes can assemble complex images using rapid head scanning, challenging traditional views on vision. The study suggests the brain plays a crucial role in processing visual input, enabling organisms to recognize details and patterns despite limited visual acuity.
Scientists at Duke University Medical Center discovered that specific sensory neurons play a crucial role in the perception of touch in fruit fly larvae. These neurons, characterized by thin spikes and dynamic filopodia structures, are sensitive to force and trigger responses when activated.
Researchers found that releasing green leaf volatiles increases plant fitness by attracting enemies of herbivores and boosting reproduction. This natural defense mechanism can improve agricultural yields without harming the environment.
Researchers discovered specific proteins in honey bees that help them resist Varroa mite infestations. These proteins enable the removal of infected larvae and reduce mite populations, promoting the survival of the species. This natural approach could provide a solution to Colony Collapse Disorder.
Dr. Keith Crandall's research in the journal Ecology and Evolution found that Cerataspis monstrosa is a larval stage of the deep-water aristeid shrimp Plesiopenaeus armatus. The discovery sheds light on biodiversity and life history of the organism.
A study led by Iliana Baums found that coral larvae are unable to traverse the Eastern Pacific Barrier, corroborating Charles Darwin's 1880 prediction. The research has significant implications for climate-change research, species-preservation efforts, and economic stability in the eastern Pacific region.
A new study found that female hide beetles (Dermestes maculatus) are attracted to cadavers by a combination of cadaver odour and male sex pheromones. The females only respond when both the odor and pheromones are present, optimizing their chances of reproductive success.
Royal jelly's composition can be modified to change the body size of queen bees during development, with a potential impact on human health. The study uses histone deacetylase inhibitors to create super RJ, leading to increased larva growth and potential health benefits.
Researchers from the University of Illinois discovered that low rainfall and high temperatures increase the numbers of larvae in storm water catch basins. The study, published in Journal of Medical Entomology, highlights the importance of monitoring mosquito populations in these areas to track West Nile Virus disease cases.
Researchers have developed a novel microscopy method to visualize cell structures in living fish larvae, resolving structures to 145 nm in the plane and 400 nm in-between. The technique allows for real-time observation of cell motion and development of vertebrates on the cellular level.
A team of female scientists from the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science have developed a sophisticated numerical model to study fish larvae's navigation skills. The model uses reliable larval swimming speeds and vertical migration to create realistic scenarios that can be studied in detail.
A recent study found that three commonly used herbicides can dramatically reduce butterfly populations. Researchers tested triclopyr, sethoxydim and imazapyr on butterfly larvae and found a significant drop in adult numbers. The findings have implications for conservation efforts to protect endangered species like the Lange's metalmark.
Four new species of Panops spider flies have been described from Australia, characterized by their jewel-like appearance and ability to feed on nectar. The larvae of these flies are internal parasites that prolong the life of juvenile spiders by living inside them for years, ultimately leading to the spider's death.
Insect metamorphosis triggered by hormones, like puberty in humans, involves a global change of rules for gene expression. Researchers found that a specific gene and signaling pathway work together to control development at different stages.
The newly discovered Antispila oinophylla species, originating from eastern North America, is found to infest Italian vineyards, particularly on Chardonnay, Cabernet Sauvignon, and Muscat grapes. The leafminer's life cycle and distribution have been studied in detail, highlighting the potential economic impact of this invasive species.
Researchers found that crown-of-thorns sea stars originate from local populations, rather than spreading across large distances via larval dispersal. Genetic analysis revealed significant genetic differences among reefs and habitats within the same island.
A recent study by Emory University found that fruit flies infected with blood-borne parasites consume alcohol to increase their survival rate. The researchers discovered that the toxic effects of alcohol can be protective against infectious disease and raise an important question about whether other organisms, including humans, could c...
Fruit flies seek out alcohol to kill off blood-borne parasitic wasps, showing a potential natural remedy for fighting infection. Environmental alcohol protects fruit flies from parasitism, and consuming alcohol leads to death of the wasps.
Researchers at the Max Planck Institute for Chemical Ecology have successfully silenced insect genes in a high-throughput manner using plant-mediated RNA interference. By targeting specific genes, such as CYP6B46, the scientists demonstrated that the gene silencing worked with high specificity and no collateral damage.
Researchers found that a defect in energy production in the nervous system may be the cause of Parkinson's disease, particularly in younger adults. The study used fruit fly models to discover that a key protein, parkin, is linked to mitochondrial failure and oxidative stress.
A University of Miami research team studied the larval stage of great barracuda and sennets, finding they share a similar diet and live in upper 25m ocean layer. The study identifies a size advantage within the larval stage, where bigger larvae are more likely to survive.
Researchers at Duke University Medical Center discovered naturally occurring variations of the TRPA1 gene that allows fruit flies to sense potentially dangerous discomforts, including heat and pain. The findings may have implications for understanding temperature sensitivity in humans and developing new treatments for conditions such a...
Researchers at Purdue University and USDA develop method to test toxins on Hessian fly larvae, finding potential solution to failing genetic resistance in wheat. They discovered that snowdrop lectin disrupts digestive function in Hessian flies, slowing their development.
New research from NC State University sheds light on how blow flies survive when buried underground during their development. The study found that blow flies can survive burial and provides additional information for murder investigations, helping forensic entomologists determine body burial times and potential relocations.
Researchers at the University of Toronto found that juvenile dragonflies exposed to predatory fish had survival rates 2.5 to 4.3 times less than those not exposed. This stress caused more dragonflies to fail metamorphosis and die, with 11% of larvae dying during this process.
A recent study revealed that three European parasitoid wasp 'species' are actually seasonal forms of a single species. The researchers used museum collections and targeted fieldwork to confirm the findings, which were further supported by DNA sequence data.
Scientists have described two new species of extremely long-legged beetles from the Philippines, assigning larval stages to adult images using mitochondrial DNA. The researchers aim to provide basic knowledge and identification tools for tropical species as freshwater bioindicators.
Researchers at Max Planck Institute for Developmental Biology discovered that simple nerve cells in Platynereis larvae regulate ciliary beating to control swimming depth. The discovery provides insights into the early evolutionary stage of the nervous system and could be relevant for marine ecology.
Researchers found that ground beetle larvae use a unique method to attract and feed on amphibians, tricking them into thinking they are tasty prey. This phenomenon has significant implications for understanding the environmental impact of invasive species.
In a remarkable discovery, ground beetle larvae have evolved to lure and consume amphibians, reversing the typical predator-prey relationship. The larvae use unique movements and sit-and-wait strategies to draw in prey, before attaching themselves using double-hooked mouthparts.
Scientists have made new discoveries about the biological makings of queen bees and worker bees, finding major differences in protein activity during early stages of life. These findings suggest that proteins with metabolic enhancing activities play significant roles in caste determination.
Researchers discovered that desert seed beetles use a strategy of stacking their eggs as shields against parasitic wasps. The beetles lay their eggs on seed pods, then stack multiple layers to protect them from the wasp species. This behavior prevents the wasp larvae from developing and allows the beetle offspring to survive.
The study found that ocean acidification has a strong impact on shell strength and size in mussel larvae, leading to reduced survival rates and ecosystem balance disruption. The findings suggest that increased CO2 levels could affect the delicate balance of coastal ecosystems.
A recent study published in Oecologia sheds light on the dispersal of marine fish larvae, crucial information for designing marine protected areas. Researchers found that larval fish traveled an average distance of 77 km from their home reef, with some traveling over 200 km.