Articles tagged with Larvae
A Vanderbilt biologist studied cockroaches' defense mechanism against wasp attacks using ultra-slow-motion videography. The 'en garde' position and swift kicks saved 63% of adult cockroaches from being stung, while juveniles were more vulnerable to attack.
A new study found that picaridin-containing insect repellents can be lethal to larval salamanders, causing severe mortality and developmental deformities. The research suggests that environmentally realistic concentrations of picaridin may increase the abundance of adult mosquitoes due to reduced predation pressure.
Scientists have discovered intricate glycan structures in royal jelly, a substance believed to influence honeybee development. These findings challenge previous assumptions and may lead to a deeper understanding of the complex interactions between glycosylated proteins and signaling pathways.
A Rutgers study reveals that the body structures of blue crab larvae significantly impact their ability to survive. Contrary to an initial assumption, the study found no correlation between a mother's size and her offspring's larval characteristics.
Researchers found that burying beetles use their gut symbionts to transform decaying carcasses into nutritious nurseries for their young, promoting larval growth and development. The symbionts suppress the growth of microbial pathogens and toxic substances, allowing the larvae to thrive.
A study reveals that bacteria associated with a carrion-eating beetle help slow carcass decomposition and support the growth of beetle larvae. The beetles' microbial flora facilitate the preservation of carcasses by outcompeting microbes associated with decomposition.
Scientists at McGill University found that a rudimentary 'organ' in ants regulates the balance between soldiers and workers, allowing colonies to maintain a constant ratio. By controlling the growth of this organ, ants can rapidly produce more soldiers when needed.
Scientists from Shinshu University have analyzed the genetic DNA of Stenopsyche caddisflies, a common Japanese insect delicacy. The study reveals that these insects originated in southern Asia and dispersed globally over millions of years.
Nematodes transmitted during copulation and from mothers to offspring alter brood ball communities, boosting plant-digesting bacteria. This discovery supports the notion that nematodes are mutualists rather than parasites.
Researchers found that larvae without parental support evolved larger jaws to compensate for lack of help. This adaptation enables them to fend for themselves in case they receive no care.
Researchers are creating artificial structures to mimic natural surfaces for coral larvae to settle on. By understanding the interactions between larvae and materials, they aim to increase reef regeneration rates and combat coral bleaching. The project combines engineering and biological expertise to tackle this critical issue.
A beetle that tricks bees into carrying it into their nests has adapted its deceptions to local hosts, according to research. The larvae of the beetle lure male digger bees with chemical signals mimicking female sex pheromones, allowing them to feed on bee eggs and provisions.
Researchers found that geographically isolated populations of parasitic blister beetles use distinct adaptations to target different host bee species. The larvae emit chemical cues tailored to the pheromones of local hosts, attracting male bees and exploiting their nests.
A study has identified a single gene called insulin-like peptide 2 (ILP2) as the key determinant of queen and worker roles in ants. The gene is activated by better nutrition and stimulates ovaries to trigger reproduction, explaining the emergence of social behavior in insects.
Researchers discovered that clownfish ancestors had three white stripes, which later evolved into different stripe patterns in individuals from various species. The study found that some species acquire more stripes as juveniles than they do as adults, and that a decrease in iridophores inhibits stripe formation.
A new phase has been proposed in the relationship between figs and wasps, revealing a sixth developmental cycle where insects other than wasps can insert their eggs into figs. This finding highlights the complex mutualism between figs and wasps, which have evolved over 65 million years.
Scientists have unraveled how changes in nutrition determine the development of honeybees into queens or workers. Epigenetic patterns, including histones, play a crucial role in controlling gene expression and developmental outcomes.
A team of researchers from the University of Oregon has made a groundbreaking discovery about the neural circuitry that controls movement in fruit flies. By mapping the communications between a pair of brain neurons and motor neurons, they found that a single neuron can trigger both forward and backward motion.
Researchers found fossil Myrmeleontiformia fauna from mid-Cretaceous Burmese amber, shedding light on the ecological niche and lifestyle of extinct species. Statistical analysis showed a correlation between morphological traits and hunting strategies, including camouflaging and fossoriality.
A new interaction between plant and insect parasites is found when the two exist on a shared host. The parasite-leeches nutrients and moisture away from the wasp larvae developing in the tree, while also attacking unusual growths caused by the wasps. This discovery has implications for agriculture and medicine.
Researchers at the University of Delaware discovered that plants emit scent cues when under attack by insects, recruiting birds to provide a food source while defending crops. The study used Play-Doh larvae and dispensers to replicate plant volatiles, finding that birds were attracted to these cues more strongly than to a control measure.
A Rutgers University-led study documents how baby sea snail larvae detect and respond to ocean turbulence and waves, improving their chances of survival. Climate change may impact the habitats of these larvae, potentially affecting their populations.
A recent study has discovered that fruit fly larvae possess novel taste receptors capable of detecting ribonucleosides, the building blocks of RNA. This ability significantly enhances their growth rate and survival, allowing them to increase their body weight by 200-fold in just a few days.
Researchers found unique chromosome rearrangements in mosquito larvae from the Caucasus region, indicating a complex genetic structure. The study suggests that the region's fauna has unified geographically but divided evolutionarily, with significant genetic distance between populations.
A study on pine sawfly larvae found that repeated participation in the common defence increases mortality and weakens ability to defend against predators and parasites. Larvae also paid a price for diet quality, growing slower and benefiting from not defending.
Fruit fly larvae can taste ribonucleosides, a key finding that provides insight into the development of tooth decay. The discovery reveals that Gr28 receptors in taste neurons play a crucial role in detecting these compounds, which are essential for larval growth and survival.
A new study sheds light on the evolution of workers and queens in ants by identifying a key gene involved in regulating reproduction. Researchers found that a gene coding for an insulin-like peptide, ILP2, promotes and suppresses reproduction in ants.
A study published in PLOS Biology found that worker honey bees select royal subfamilies, not their own supersisters, to raise as emergency queens. This suggests that 'the good of the hive' overpowers individual genetic selfishness.
Researchers have discovered a pesticide-free way to limit mosquito populations by introducing hungry minnows into breeding areas. The study found that this method can reduce adult mosquito numbers capable of carrying the disease, providing a low-maintenance and cost-effective alternative.
New research reveals that honeybees preferentially select larvae with optimal nutritional status for emergency queen rearing. The study found that worker bees can distinguish between hungry and well-fed larvae, resulting in a higher success rate for queen production when non-deprived larvae are selected.
Marine organisms easily ingest nanoplastics, which accumulate in their bodies over time, threatening food safety. Nanoplastics can transfer up the food chain, affecting human health, as shown in a recent study using acorn barnacles.
Researchers found that incorporating flowering areas and agri-environmental schemes in agricultural landscapes increases predator species and individuals, leading to effective natural pest control. The distance between the flowering plot and the oilseed rape field is crucial for this effect.
Researchers uncovered a new lacewing species with anatomical modifications mimicking coeval liverworts, demonstrating the first record of liverwort mimicry by fossil insects. The larvae's foliate lateral plates and unique morphological features aid their survival and likely enable stealthy hunting or ambush predation.
Researchers found that baby fish are deterred by natural sounds in their habitats due to ocean acidification, and instead attracted to 'white noise' from irrelevant habitats. This could lead to smaller population sizes and impacts on commercial fisheries.
A long-term field study in a Swedish fjord found that herring larvae can survive and thrive in acidified seawater due to increased phytoplankton growth. However, this finding does not necessarily apply to other fish species, which may be negatively affected by ocean acidification.
A new study published in Nature Ecology and Evolution suggests that herring larvae may survive better in a future acidified ocean due to an altered food supply. This unexpected result could have implications for the long-term survival of fish populations.
Researchers discovered that the proteins in royal jelly, particularly MRJP1 and apisimin, create a fibre-like structure that makes it viscous enough to keep queen larvae in their cells. This property ensures the survival of bee colonies by preventing larvae from falling out and developing into queens.
Research reveals that royal jelly's acidity changes its consistency, enabling it to cling to the ceiling of queen cells and support the growth of future queens. This property is essential for the survival of honeybees, as larvae destined to become queens need a stable environment to develop.
Researchers found Crepidula onyx snails unaffected by microplastics at environmentally relevant concentrations, suggesting potential threat to other marine organisms. The study highlights the species' resilience and implies a need for further investigation into its coping mechanisms.
Researchers have uncovered two distinct moth species using leaf-mining moths that were previously misidentified due to their shared name. The corrected classification reveals that these insects expand their ranges differently, with one having a single annual generation and the other featuring multiple generations.
Researchers studying a new species of parasitoid wasp discovered it has a unique saw-like spine structure that allows it to break free from its host. The wasp, Dendrocerus scutellaris, is likely an endoparasitoid, feeding on live insects.
Researchers have developed a new sowing approach for coral reef restoration, allowing for the handling of large numbers of corals in a short amount of time at significantly lower costs. The approach minimizes costs and time required for outplanting corals by settling larvae on specifically designed substrates.
Researchers used genetic barcoding to identify and quantify fish larvae in a coral reef ecosystem, revealing species distribution and dispersal patterns. The study solved several mysteries, including the invasion of a puffer fish into the Mediterranean, and provided new insights into the ecology of the reefs.
A team of researchers from the University of Pennsylvania has discovered a molecule that can suppress the lethal form of infection in a mouse model of Strongyloides stercoralis. By using this molecule, they were able to prevent the formation of larvae that trigger a persistent cycle of infection in the host.
Researchers have found that comb jellyfish can adjust their regeneration mechanisms based on environmental nutrients. In nutrient-rich environments, the larvae can fully regenerate, while in areas with fewer nutrients, they survive but cannot fully heal.
Researchers identified 100 undisturbed reefs with potential to provide coral larvae to damaged areas, promoting regional recovery. Effective local protection is crucial to support this ecosystem's resilience.
Mussel larvae are sensitive to ocean acidification due to their high calcification rate and limited ion regulation capacity. Researchers found that larvae can increase pH and carbonate concentration below the shell to promote calcification, but this is reduced by increasing acidification
Researchers have discovered new neural connections in a critical brain region of the fruit fly, challenging existing maps and highlighting the need for detailed brain mapping. High-resolution electron microscopy has revealed these unexpected synapses, which may be crucial for learning and memory.
Research finds that restored, protected reefs have significantly higher oyster densities and larval output compared to harvested reefs. Additionally, restored harvested reefs show increased larval recruitment, implying a valuable spillover effect from reserves to surrounding areas.
A year-long survey of Red Sea fish larvae found varying stock levels through the seasons, with higher abundance at near-shore sites during colder months. The study also identified differences in community structure, with deeper-adapted species prevalent at offshore sites.
Researchers have found that essential oils extracted from citrus fruit peels are highly effective in killing mosquito larvae, suggesting a potential eco-friendly alternative for mosquito control programs. The study, believed to be the first of its kind, uses three citrus species and has shown promising results.
Scientists found anchovies and sardines spawning earlier and longer in Northwest waters due to unusually warm ocean conditions. This change may have unforeseen consequences on the food web, including competing with other species for food.
A new study finds that protected waters have fostered a resurgence of West Coast rockfish, with larvae increasing in number within conservation areas. The research suggests that these areas can seed surrounding waters with offspring, supporting the long-term recovery of the species.
Researchers found that bacterial exposure during larval development affects adult mosquito traits, including speed of development, size, immune activity, and susceptibility to dengue virus. This discovery highlights the importance of larval ecology in transmitting mosquito-borne pathogens.
A new species of primitive monotrysian micromoth, Cecidonius pampeanus, has been discovered in Brazil, inducing noticeable galls on the Uruguayan pepper tree. The larvae's low survival rate and lack of gene flow amongst populations threaten their extinction.
Researchers found that honeybees fed plant microRNA supplements developed more slowly and had smaller bodies than those not receiving the supplements. The study reveals a previously unknown function of plant microRNAs in fine-tuning larval development.
Plant miRNAs in beebread/pollen delay honeybee caste differentiation and keep ovaries inactive, inducing sterile worker bees. This study reveals a new mechanism for RNA regulation in insect development.
Scientists have found that trained dogs are more successful in detecting hermit beetle larvae than traditional methods. Using trained dogs can locate new populations, confirm the presence of target species, and map colonized trees accurately and efficiently.
A team of researchers found that goldenrod plants can detect a specific chemical compound emitted by gall-inducing flies, triggering a defense response. The plants respond strongly to E,S-conophthorin, a blend of chemicals that attracts females and fertilizes eggs.
Researchers develop model using zebrafish larvae to predict personalized treatment of cancer, offering faster and safer option than current methods. The study confirms that zebrafish and mice react similarly to treatments, enabling timely answers in under two weeks.