Articles tagged with Insect Physiology
A species of African ticks, Argas brumpti, has been found to survive for up to 27 years without feeding, and reproduce healthily long after the last male tick dies. This record-breaking adaptability allows them to conserve water and energy in a dry environment.
Researchers from the University of Tsukuba have discovered that certain flavonoids inhibit an enzyme involved in the formation of a key insect hormone in the yellow fever mosquito. Flavonoids, found in plants and other organisms, also show larvicidal activity against mosquitoes.
Researchers discovered that robber flies employ a combination of two strategies to navigate cluttered environments and capture prey. They use an obstacle avoidance strategy to swerve around obstructions, which is then followed by a resumption of the conventional interception path once the fly has passed the obstacle.
Researchers at Tel Aviv University found that a specific type of bacteria, Weissella, becomes dominant in the gut microbiomes of locusts when they form swarms. This change may provide the bacteria with an evolutionary advantage, allowing them to spread and infect more locusts.
A new species of leafhopper, Phlogis kibalensis, has been discovered in the Kibale National Park in western Uganda. The insect belongs to a rare genus that was last recorded in Central African Republic in 1969.
Researchers at North Carolina State University have discovered a unique jumping behavior in the larvae of a species of beetle, where they curl into a loop and leap forward. The mechanism behind this behavior is distinct from other insects that rely on a latch-mediated spring actuation mechanism.
A Tel Aviv University study found a significant link between changes in G-protein-coupled receptors and brain adaptability. Disabling the voltage sensor of these proteins caused uncontrolled brain flexibility, leading to excessive habituation to odors.
A study on a beetle species reveals how two distinct cell types form a specialized gland for making and secreting defensive compounds. The findings suggest that the gland's evolution was driven by coevolution between the cell types, leading to the creation of a functional secretion with adaptive value.
Researchers discovered that these 'meat-eating' bees have a unique gut microbiome enriched with acid-loving bacteria, similar to those found in vultures. The bees' ability to eat dead bodies is surprising, but they can also store honey and have special chambers for meat storage.
Researchers discovered that a single protein, Kr-h1, responds to socially regulated hormones to orchestrate the complex social transition in Harpegnathos saltator ants. The study reveals important roles for gene regulation and hormone response in controlling animal brains' plasticity.
Researchers have developed a way to bottle the 'smell of fear' produced by predators to repel and disrupt destructive insects. The odor blend can be used in essential oil diffusers to spread over time across gardens or fields, offering a natural alternative to pesticides.
A new study reveals insects experience similar physiological effects of gravity as humans, with air sacs expanding in response to orientation. Insects have an active response called functional compartmentalization, allowing them to control pressure and maintain blood flow.
A study found that beet juice deicer causes fluid retention and alters organ function in mayflies, despite being considered a natural alternative to road salt. The researchers suggest that more research is needed to determine the combination of factors causing problems.
Research finds that bigger stingless bee species can fly better in high-temperature conditions than smaller counterparts. This contradicts the well-established temperature-size rule, which predicts that ectotherms should be larger in cold climates and smaller in hot ones.
Researchers discovered that water collector bees respond to thirsty nest mates' begging, increasing their water-bearing activity. The team found that the hive stabilized its temperature at 40°C by controlling its water intake.
The first issue of Current Opinion in Insect Science is now available for free online on ScienceDirect, featuring articles on insect body size, genetics, and social structure. The journal aims to provide a unique platform for specialists to keep up-to-date with the expanding volume of information published in the field of insect science.
Researchers found that suppressing taste buds in fruit flies can significantly increase or decrease lifespan and potentially promote healthy aging. Bitter tastes had negative effects on lifespan, while sweet tastes had positive effects, particularly for water taste.
Male fruit flies that expect sex but don't receive it experience rapid decreases in fat stores, resistance to starvation, and more stress. Mating partially reverses the negative effects on health and aging. The study provides new insights into how sensory perception and physiological state are integrated in the brain.
Researchers discovered that mosquitoes can control their body temperature by releasing cooling fluid during feeding, a strategy that protects them from heat stress and potential hosts' defenses. This finding has implications for controlling mosquito populations and diseases they spread.
The Entomological Society of America recognizes two entomologists with Distinguished Achievement Awards: Dr. Angela Douglas for her research on insect nutrition and symbiotic microorganisms, and Dr. Michael Parrella for his work on integrated pest management in the floriculture industry.
The ESA has elected ten new Fellows for their outstanding research, teaching, and extension work in entomology. Dr. Gary Blomquist and Dr. David Boethel are recognized for their research on pheromones and insect IPM, respectively.
Thomas Miller, UCR entomologist, to advise State Department on biotechnology and pest management globally. He will also engage with non-specialists and travel to embassies to share expertise.
A North Carolina State University study found that examining an insect's 'family tree' can help predict a cousin insect's level of tolerance to pollutants. The research used 21 species of insects from different families to test their sensitivity to cadmium, a toxic metal.
A study published in PLoS Genetics identified five seminal proteins necessary to elevate offspring production in mated females. These proteins modulate egg production, sperm storage and release, as well as female post-mating behavior and physiology.
Research by Professor Anurag Agrawal reveals that plants can detect the difference between various insect species and respond accordingly, adjusting their growth, behavior, and chemical defenses. In turn, insects adapt their phenotype and physiology to better digest the plant, highlighting a flexible co-evolutionary strategy.