Articles tagged with Invertebrates
A new estimate of insect species globally suggests that there may be 8-14 million more species than previously thought, with many yet to be discovered. The study, using genetic information and statistical strategies, conservatively estimates the total number of insect species at around 14-20 million.
A new study discovered a previously unknown antiviral defense mechanism in sea anemones, revealing that animals may have evolved more than one way to fight viral infections. The findings suggest that fundamentally different antiviral strategies have emerged across the animal kingdom.
Honeybee queens are created through an elaborate process involving young worker bees constructing customized wax chambers with unique physical and chemical properties. Researchers identified a previously unrecognized class of young worker bees dubbed 'queen cell builders' that appear uniquely adapted for the task.
A new spatially explicit population model for springtails in soil simulates dynamic environmental conditions, linking development and reproduction to temperature and moisture. The model provides a realistic assessment of ecosystem health under changing environments.
A recent study led by UCL researchers found that cooperative societies of tropical paper wasps can survive fierce leadership battles due to individual wasps that pick up the slack. These compensators avoid conflict and increase their investment in essential tasks like foraging and brood care, maintaining societal function.
Researchers found significant increases in invertebrate abundance following rodent eradication, particularly among larger-bodied species vulnerable to predation. The study highlights the crucial role of invertebrates in ecosystem function and recovery.
Researchers found that treating woodland trails with woodchips and insecticide significantly reduced the density of blacklegged ticks, a primary vector of Lyme disease. The study demonstrated that both deltamethrin-treated and untreated woodchip interventions can effectively reduce tick populations in recreational contexts.
The discovery of seven millimeter-sized phosphatized fossils from the early Fortunian Kuanchuanpu Formation provides evidence of annelid body fossils from Cambrian Orsten-type fossil localities. The findings suggest that early annelids were polychaetes, supporting the hypothesis that polychaete morphologies were primitive among annelids.
A team of Cornell researchers has discovered a massive aggregation of ground-nesting bees, estimated to be over 5.5 million individual bees, in the East Lawn Cemetery. The discovery highlights the importance of these solitary bees as agricultural pollinators and adds credence to claims that cemeteries serve as preserves of biodiversity.
Entomologist Mark Moffett observes harvester ants congregating with smaller cone ants in Arizona's Chiricahua Mountains. The unusual behavior involves the cone ants licking and nibbling the harvester ants' body surfaces, possibly consuming calorie-rich dust-size morsels.
A new study from UC Riverside shows that a locally adapted population of SoCal honeybees can naturally suppress deadly mites. The hybrid bees are less susceptible to Varroa mite infestations and cross-thresholds, making them more resistant than commercial breeds.
A new USF study challenges long-standing assumptions about the brown recluse spider, finding it's far less common in Florida and exhibits a lower propensity to bite. The research also reveals that bites typically produce shallow wounds with minimal tissue damage.
Researchers found caterpillars mimic ant signals using precise rhythmic beats to gain acceptance, feeding, and protection. The most ant-dependent species produce regular, complex rhythms similar to those used by ants.
A University of California - Riverside study has identified bed bugs' fear of water and wet surfaces, which affects their behavior and movement patterns. Researchers found that all bed bug ages and genders avoid wet surfaces, with younger insects being more sensitive to moisture.
The giant Asian mantis has been formally recognized as an invasive alien species in Europe, posing a significant threat to native biodiversity. The species' high reproductive potential and predatory behavior are causing declines in native populations and altering ecosystems.
Researchers have developed a new method to map the location of honey bee 'dance floors,' where forager bees perform waggle dances. This method allows for accurate quantification and comparison of waggle dance regions, enabling better understanding of honey bee communication.
A collaborative effort by researchers from the University of Göttingen and other institutions is creating a genomic inventory of European marine annelids. The goal is to accelerate biodiversity research worldwide and counteract the 'silent extinction' of marine species.
A new species of ladybird beetle, Parastethorus pinicola, was discovered on a pine tree at Kyushu University's Hakozaki Satellite. The beetle measures just over one millimeter in length and is the first major update to Japanese ladybird classification in 50 years.
A comprehensive review reveals devastating loss of island land snail biodiversity, with extinction rates ranging from 30% to 80%. The Hawaiian Islands, in particular, have lost up to 90% of their unique native snail species due to human arrival and colonization.
A new study has found that living walls can significantly enhance urban biodiversity by attracting pollinators and other wildlife. The research revealed that soil-based living walls with plants in soil attracted more wildlife than those with artificial substrates, and specific plant species like ivy and honeysuckle were most effective.
A new study reveals that farmers in the Northeast are facing a growing threat of tick-borne diseases, which can be devastating to their livelihoods. The research found that farmers often experience multiple tick bites per month, with some contracting serious illnesses like Lyme carditis.
Researchers have developed a new test that uses microbes to determine the age of termite droppings, allowing for rapid on-site infestation assessments. The study found that the amount of DNA from E. coli bacteria in the pellets decreases significantly over time, with a nearly 190-fold drop by the 12-month mark.
A study analyzed 679 honey samples from Italy and found that 98% contained at least one bee pathogen. This analysis may provide clues to bees' health, highlighting the need for further research on bee health.
Madagascar hissing cockroaches gather in groups to conserve water when the air is dry, a behavior that helps them retain moisture. This strategy, previously observed in small insects and larvae, may become more common as climate change alters humidity patterns.
Researchers discovered that Clubiona spiders have unique antifreeze proteins that bind to ice crystals, preventing their growth at sub-zero temperatures. This adaptation is crucial for perennial agriculture as it could lead to reduced reliance on insecticides and combatting resistance.
Researchers discover a new parasitic strategy where an invading ant queen uses a chemical spray to manipulate host workers into killing their own mother. The study details two species of parasitic ants that use formic acid as a chemical camouflage to get past the colony's defenses.
A 47-year-old man from New Jersey died after consuming beef due to a tick-borne meat allergy caused by the Lone Star tick's alpha-gal sugar. Researchers identified the allergy and its link to fatal anaphylaxis, urging physicians to investigate severe abdominal pain after eating red meat in areas with high Lone Star tick populations.
In a study by Michelle Miner at UC Riverside, bumble bees were found to avoid foraging near ant colonies due to the risk of being bitten. However, aggressive bees who fought back were victorious in individual fights but may ultimately harm their colony by wasting energy.
Scientists have discovered a new species of deep-sea limpet clinging to a sunken log in the Central Pacific Ocean. The discovery provides crucial insights into ocean biodiversity and ecosystem secrets, revealing that even tiny islands of habitat can sustain deep-sea communities long enough for population turnover and dispersal.
Researchers discovered a common parasite of modern oysters has been infecting bivalves for hundreds of millions of years. The parasite, belonging to the spionid group, has remained largely unchanged despite multiple mass extinction events.
Researchers at University of Würzburg discover carpenter ants perform prophylactic amputations on injured workers, halving infection spread and doubling survival rate. This unique approach is reminiscent of human medical logic, highlighting the importance of timely treatment in densely populated colonies.
New research from the Stowers Institute for Medical Research reveals planarian stem cells ignore their nearest neighbors and respond to signals further away in the body. This discovery may help explain the flatworm's extraordinary ability to regenerate and offer clues for developing new ways to replace or repair tissues in humans.
A study by Okinawa Institute of Science and Technology researchers found that 79% of endemic ant species in Fiji are declining over the past few hundred years, coinciding with European contact and modern agricultural techniques. In contrast, non-native ant species are exploding in population.
A new study found potentially concerning concentrations of domoic acid in wild sea stars, which could have cascading consequences for marine biodiversity. The researchers also observed behavioral and physiological changes in response to the neurotoxin, raising concerns about its potential impacts on keystone species.
Researchers at Binghamton University have identified two previously unknown species of parasitic wasps living in the United States, highlighting the importance of biodiversity and oak gall wasp diversity. The discovery sheds light on how these insects escape diverse and evolving clades of parasites.
Researchers developed a sustainable solution to help tackle honeybee decline by creating an engineered food supplement. The new feed, designed to provide essential compounds found in plant pollen, significantly enhances colony reproduction.
Researchers identified X- and Y-linked sequences in Nautilus, indicating a more dynamic sex determination system than previously thought. The study's findings have implications for cephalopod biology and conservation.
Monarch butterflies utilize magnetic fields for migratory directionality, with orientation recalibrated by cold temperatures. Experimental study suggests this ability may be disrupted under climate change, threatening their migration patterns.
Researchers at Monterey Bay Aquarium Research Institute used the EyeRIS camera system to track the movements of deep-sea pearl octopuses. The study revealed simplified control mechanisms in their arms, which could inspire the design of octopus-inspired robots.
Scientists studied male fiddler crabs competing over females in a claw-waving contest. The robot crab, Wavy Dave, waved its claw, causing real males to respond by waving longer and less retreating into their burrows.
A study of Olenoides serratus trilobite limbs reveals a simpler, functional design than horseshoe crabs, with specialized appendages for walking, burrowing, and mating. The research provides new insights into the behavior and movement of ancient arthropods, offering a rare window into life over half a billion years ago.
Despite poor health scores for England's rivers, independent review reveals important improvements in freshwater biodiversity, including increases in species richness and diversity. An alternative monitoring standard has been proposed to better reveal the status of different species and inform local decisions.
Researchers have discovered a new species of deep-sea limpet, measuring up to 40.5 mm in shell length, found 5,922 meters beneath the northwestern Pacific Ocean. The species, named Bathylepeta wadatsumi, has broader ecological implications as it appears to graze on sediment layers over rock.
A world-first study has mapped the global distribution and evolutionary relationships of brittle stars, revealing their quiet migration across entire oceans over millions of years. The research highlights the interconnectedness of deep-sea communities, particularly at temperate latitudes.
Researchers found that azuki bean beetles infected with Wolbachia bacteria produce larger eggs yielding exclusively male offspring when exposed to elevated temperature and carbon dioxide. This adaptive reproduction strategy enhances the survivability of their offspring.
Scientists studying ant plants in Fiji have discovered a way for the plant to keep the peace among conflicting ants by providing separate chambers. The new research reveals that compartmentalization is an effective evolutionary strategy to mitigate conflicts, allowing the host plant to benefit from multiple symbiotic relationships.
Four new species of dragon pseudoscorpions have been discovered in caves of South Korea, characterized by their unique dragon-like jaws. These blind creatures were identified through integrative taxonomy, providing insight into the biodiversity of cave-dwelling animals.
Researchers discovered that ants' wax layers exhibit complex phase behavior, allowing them to balance hydration and communication needs. The layer's viscosity decreases with rising temperatures, but also shows unique effects when exposed to different acclimatization temperatures.
Agroecological methods improve biodiversity, pollination, natural pest control, and crop yields, but new subsidies are needed to support farms' transition. The study found that incorporating nature-friendly practices increases benefits for nature and farmers, with higher soil carbon and overall increased crop yields.
Researchers have discovered a synthetic peptide that attracts Crown-of-Thorns Starfish at low concentrations and with no toxicity, offering an efficient pest-management solution. This breakthrough may lead to the development of potent attractins to control CoTS outbreaks, protecting coral reefs from devastating damage.
A team of researchers at Kyoto University has identified four species of snail parasites in Japanese sea cucumbers, including two previously unknown species. The study provides insights into the geographic distribution and invasion routes of these tiny parasites, which have a significant impact on the health of their host species.
Researchers have discovered that Bogong moths use constellations of stars and the Milky Way to navigate long distances, making them the first known invertebrate to rely on a stellar compass for navigation. The moths also use the Earth's magnetic field to maintain their direction even when clouds obscure the stars.
A recent study documents the discovery of over 100 new ribbon worm species off Oman's coast, highlighting a significant underestimation of global marine biodiversity. The finding underscores the importance of exploring lesser-studied regions, such as the tropics, to uncover the full extent of oceanic diversity.
A study by UC Riverside reveals that bumble bee queens pause egg-laying after a burst of activity, likely in response to cues from their developing brood, and typically resume production within 1.5 days when pupae are present.
Researchers found that male mosquito brains respond to a wider range of sounds than females and have more diverse responses. This suggests that males use complex acoustic cues to locate females in noisy environments, making traditional traps less effective.
Roundworm C. elegans avoids deceased conspecifics due to olfactory cues from metabolites AMP and histidine, leading to reduced fitness and increased egg laying. The detection of these signals may be an evolutionarily maintained mechanism for detecting cellular death.
Researchers discovered a novel mode of contact between somatic and germ cells in the ovaries of two arthropod species, challenging the general understanding of epithelial layer function. The basement membrane, typically a barrier, is penetrated by follicle cells to establish direct contact with oocytes.
Researchers created first complete genetic activity map of a branching worm, revealing how it controls reproduction across its multiple body branches. The study highlights the unique genetic toolkit and challenges understanding of animal bodies' organization.
Chinese researchers have identified an insect predator using tools to exploit the collective defenses of social insects. The assassin bug, Pahabengkakia piliceps, weaponizes resin from stingless bee nests to lure bees into its optimal hunting position.