Articles tagged with Larvae
Marine invertebrate larvae of sea urchins demonstrate active responses to turbulence and flow conditions by adjusting their swimming speeds. This behavior has significant implications for the adult populations' transport, survival, and recruitment.
Larval fish exposed to microplastic particles displayed changed behaviors, such as ignoring natural food sources and failing to respond to predators. This led to increased mortality rates and potentially severe consequences for marine ecosystems.
A new study found that microplastic particles negatively impact European perch larvae, reducing hatching success and survival rates. Exposure to high concentrations of plastics also alters feeding preferences and prevents fish from responding to predatory cues.
Researchers discovered the optimal temperature of 25 degrees Celsius for Spathius galinae, a host-specific parasitic wasp targeting emerald ash borer. The wasp's unique ability to detect vibrations in bark allows it to locate larvae and is highly host-specific, minimizing the risk of impact on other species.
Researchers have developed a biodegradable seed coating that functions like nature's defense system, protecting plant seeds from insects without impairing germination. The coating has been shown to be effective against various cereal pests, including mealworms and beetles, but not against wheat weevils.
Seabirds nest in areas where food is concentrated due to ocean currents and climate. The locations of nearly two million seabird colonies along Norway's coast north of the Arctic Circle are influenced by fish larvae hot spots.
Research finds honeybees anticipate and react to rapid temperature increases sooner in larger groups of 10, suggesting decentralized information gathering improves response time. This study explores the role of group size on self-organization and biological environments.
Researchers at the Boyce Thompson Institute discovered that potato plants boost chemical defenses in their leaves when Guatemalan tuber moth larvae feed on their tubers. This response protects against leaf-eating pests like beet armyworms, allowing plants to maintain sugar production and grow more tubers. The study may help reduce pota...
A new article provides a comprehensive guide to managing billbugs in turfgrass, including regional information and alternative control methods. The study highlights the potential of using resistant turfgrass varieties and encouraging natural predators to manage billbug populations.
Researchers identified key components of the molecular toolkit that allow corals to build their skeletons, shedding light on the transformation from larval stage to adult coral. This knowledge is crucial for understanding how corals respond to ocean acidification, rising sea surface temperatures, and pollution.
Brown University students have developed an innovative sustainable aquaculture idea called Kulisha, which produces fish feed made from black soldier fly larvae. The team plans to build a business to raise and process the larvae, reducing the industry's ecological impact.
In 2015, Virginia shellfish farmers sold $48.3 million in clams and oysters, with hard clam sales leading the nation. The state's industry is expected to increase by 14% for planted oysters in 2016.
A new study reveals that pool frog tadpoles in Sweden grow faster under warm conditions, allowing them to complete their life cycle at high latitudes. This adaptation enables the species to survive in cold climates by maximizing growth during short periods of high temperatures.
A University of Guelph study finds that introducing invasive round goby fish does not help conserve endangered native mollusks, but rather hampers their reproduction. The research team discovered that the fish essentially 'wastes' mussel larvae, further threatening the species' survival.
Scientists have discovered nanpillars on the surface of drone fly larvae that prevent bacterial colonization. These unique structures may also exhibit superoleophobic properties, hindering biofilm formation and bacterial growth.
Masked chafer larvae cause root damage to turfgrass, leading to brown and dying blades. Biological approaches like entomopathogens offer promising solutions for reducing grub numbers.
Researchers at NC State University have genetically engineered green bottle fly larvae to produce and secrete human growth factor-BB, a molecule that promotes cell growth and wound healing. The modified maggots show promise for cost-effective wound treatment that could save people from amputation.
Okinawa Institute of Science and Technology researchers compute larval dispersal to understand and protect vent species, such as crabs and shrimp. They estimate larvae can travel long distances using ocean models and deep-ocean profiling floats.
Scientists have identified a new potential spawning ground for Atlantic bluefin tuna in the Slope Sea off the northeastern US coast. This finding challenges the long-held assumption of a single Gulf of Mexico spawning area, suggesting that western Atlantic bluefin may be less vulnerable to fishing and stressors.
UM Rosenstiel School researchers found that fish larvae swam on a 15 percent straighter course and seven percent faster when in groups. This group orientation behavior is thought to be beneficial for reducing predation and detecting food, a phenomenon previously observed only in adult fish.
Researchers discovered that San Bushmen used beetle larvae and plant materials to create arrow poisons, showcasing their intimate knowledge of their environment. This ancient hunting practice provides valuable insights into human evolution and the importance of environmental awareness.
A University of Hawaii research team will investigate how specific strains of bacteria from marine biofilms induce the settlement and metamorphosis of a small tube worm. The goal is to understand the factors produced by the bacteria that cause the larvae to settle and undergo dramatic physical changes.
A single sesquiterpene lactone, taraxinic acid β-D-glucopyranosyl ester (TA-G), found in dandelion latex, negatively affects cockchafer larvae growth. This compound plays a crucial role in dandelion defense against root feeders.
Researchers found that wasp larvae jump towards shaded areas to develop, with lower body mass individuals experiencing more jumps. The behavior helps them survive in unfavorable environments, but comes at a cost of increased energy use.
Researchers found that female Drosophila flies avoid oviposition sites that smell of parasitic wasps, significantly increasing the survival rate of their larvae. The detection is mediated by a dedicated olfactory circuit that recognizes the sex pheromone of Leptopilina wasps.
Female Drosophila flies avoid laying eggs near parasitic wasps due to an innate early warning system that detects their odor. The study identified the specific olfactory circuit responsible for this detection, revealing a highly specific and efficient defense mechanism against predators.
Researchers analyzed coral genome samples from the Ryukyu Archipelago, revealing 4 distinct groups corresponding to geographical locations. The findings suggest that coral populations repopulated themselves after 1998 bleaching, contradicting previous assumptions about long-distance larval migration.
Researchers studied the life cycle of Paracyphononyx scapulatus, a spider parasite that grows on a paralyzed host before killing it to feed. The study found that despite manipulating the host's behavior, the larva still killed its host and consumed it within 48 hours.
Researchers studied the eye development of Sunburst Diving Beetle larvae, revealing rapid eye growth and transformation between stages. The findings suggest a pre-determined eye growth mechanism, but also allow for adjustments at the level of the lens, which reforms over eight hours.
The invasive Aedes japonicus mosquito has been found in western Canada, carrying diseases like La Crosse encephalitis and dengue. The discovery was made in a suburb of Vancouver, British Columbia, in February 2015.
Researchers found that honey bee larvae acquire social information from their environment, which affects their aggression and resilience. The study suggests that early-life experiences shape the behavior of adult bees, with aggressive individuals exhibiting increased resistance to pesticides.
A study on the Belizean Barrier Reef found that fish larvae typically disperse no more than 1.7 kilometers from their parents, highlighting the need for connected marine reserves to conserve biodiversity and sustain fisheries.
Researchers found that coconut rhinoceros beetles were breeding in the crowns of coconut trees on Guam, with all life stages present. This unusual behavior is attributed to the loss of birds and rats due to brown treesnake predation, which normally feeds on larvae in this habitat.
Researchers found that glycosidase-silenced larvae are more susceptible to predators and have reduced survival rates, indicating the importance of detoxification. The study reveals a novel mechanism where removing a sugar molecule from a plant's defensive compound can result in detoxification.
Researchers have discovered that a Brazilian social bee must cultivate fungus to survive, highlighting the importance of symbiotic relationships in colony health. The fungus is grown in the nest and is transferred to newly built cells, with larvae surviving 76% of the time when fed fungal mycelia.
A study found that oxybenzone in sunscreen is toxic to coral reefs, causing DNA damage and deforming larvae. The researchers recommend wearing rash guards or scuba wetsuits without hygienic products when diving to help protect the reefs.
Marc Gershow, NYU physicist, receives $2.4M NIH New Innovator Award for pioneering research on brain processing and sensory perception. His lab will study how fruit fly larvae use smell to navigate using light-controlled neurons.
A new study found that climate change is altering the distributions of young and adult fish in the Northeast U.S. Larval stages of 43% of species shifted distribution, while adult stages of 50% also changed, often moving northwards or along the shelf. These changes have significant implications for fisheries management.
University of Oregon scientists have identified a crucial network of neurons in fruit fly larvae that mirrors the human nervous system. This discovery may lead to innovative treatments for motor disorders and more efficient robotic systems.
Researchers at Duke University Medical Center have developed a new zebrafish model to study Cryptococcal meningitis, allowing for real-time observation of the infection's spread. This model will enable scientists to test drug compounds and identify potential therapeutic targets, offering hope for disrupting this deadly brain infection.
Research on butterfly species shows that females pass on their own experience to their brood, even if it was not ideal. This rapid adaptation allows insects to adapt quickly to changing environments.
Researchers led by Caroline Chaboo explore the 'arms race' dynamics in leaf beetles, where tortoise beetles develop unique defenses against predators. The study aims to understand how this arms race drives evolution and generates biodiversity, shedding light on human morphology and behavior.
A study published in Current Biology reveals that lycaenid butterfly larvae can control the behavior of ants by supplying them with nectar rich in sugars and amino acids. This manipulation reduces locomotor activity and increases aggression in the ants, suggesting a selfish strategy to maintain mutualism.
A study at the University of Illinois identified p-coumaric acid as a key factor in determining honey bee caste. The research found that larvae fed with beebread and honey containing p-coumaric acid undergo changes in gene expression, shifting them away from queen development.
Researchers at Woods Hole Oceanographic Institution have developed a novel plankton sampling system utilizing autonomous underwater vehicles (AUVs) to collect and analyze small planktonic larvae in coastal waters. The SUPR-REMUS system combines cutting-edge technologies, including DNA barcode analysis, to provide fine-scale information...
Researchers at Nova Southeastern University found that localized derby efforts are insufficient to curb the lionfish population, emphasizing the need for consistent removal across all areas of their habitat. The study recommends targeting all lionfish ages and sizes, as well as considering ocean currents' impact on larvae spread.
A Japanese wasp has been found to control its zombie spider host to build a reinforced cocoon web for pupa development. The spiders were manipulated to remove their sticky spiral, reinforce radial and frame threads, and add decorative fibrous structures.
Scientists have successfully collected plankton and animal larvae from the deep ocean using a new sampler, PlankZooka, which uses spinning blades to gently pump water through a net system. This allows for more precise sampling and analysis of deep-sea ecosystems.
Research suggests warmer water temperatures in Lake Erie can lead to lower-quality eggs and larvae that struggle to survive. Yellow perch failure to adapt their spawning schedule contributes to the decline of this commercially important species, with numbers standing at only half of their peak in the 1960s.
A new study found that releasing larvae more often helps stabilize species population networks on coral reefs. The study, using a computer model, showed that frequent spawning drives connectivity between distant populations, stabilizing the network.
A new study found that different plant species in standing water influence mosquito larvae growth, survival and egg-laying habits. Native blackberry leaves seemed to attract mosquitoes but hindered larval development, while non-native plants like Amur honeysuckle increased adult mosquito populations.
Research from NIMBioS found that the timing of spawning is crucial for the survival of larval fish, with success rates higher on days when spawning is observed to occur. This study has important implications for fisheries management and conservation, highlighting the need to protect spawning aggregations.
A new study reveals that heat-tolerant corals can pass on their tolerance genes to their offspring, potentially helping reefs adapt to global warming. The research found that coral larvae from hotter regions were more likely to survive in warmer conditions than those from cooler regions.
A study found that highly specialized coronulid barnacles exclusively attach to the fins of dolphins, particularly along the trailing edge facing away from water flow. The barnacles select suitable areas on the fins to filter nutrients and protect developing larvae.
Researchers from Brazil and Canada have found a species of fungus gnats feeding on mushrooms in South America. The study provides valuable insights into the life stages of these tiny insects and their interactions with fungi.
A new species of leafminer on grapevine in the Western Cape has been identified as Holocacista capensis. The moth feeds on wild grapes and creates a tunnel inside the leaf, causing collateral damage to the vine.
CRG scientists map neural circuitry involved in converting olfactory inputs into navigational behaviors in fruit fly Drosophila larva. Brief excitations of identified neurons trigger changes in orientation, demonstrating the necessity and sufficiency of a couple of neurons to control chemotaxis.
Researchers at UC San Diego discovered a microsporidian called Nosema ceranae can infect honeybee larvae, leading to reduced lifespans as adults. The parasite has been linked to colony collapse disorder, with global losses of one-third of managed bee colonies each year.
A new study documents the presence of Philornis downsi at two sites near Ecuador's coast, harming 37 bird species, including the streak-headed woodcreeper and fasciated wren. A parasitoid wasp that attacks the flies has also been discovered.
A study found that butterflies, such as Oakblue butterflies, use various chemical strategies to mimic plants and avoid ant attacks. The larvae are able to survive on specific plant species without being attacked by the ants.