Researchers found that harvest slots can outperform classic minimum-length limits in maximizing kilogram yields while protecting large spawning fish and maintaining ecosystem diversity. This approach stabilizes population dynamics without causing loss in yields, increasing the average size of catch fish.
Researchers found that commonly used hormone analysis method in animal hair can overestimate cortisol levels by up to ten times. A more comprehensive mass spectrometry analysis revealed significant discrepancies and suggested the need for careful validation of each enzyme immunoassay before using it on hormone analysis from hair samples.
Researchers discovered a 'mild depolarization' of the inner mitochondrial membrane regulates mROS production and is key to the anti-ageing program. This mechanism falls apart in mice at 1 year but persists in naked mole rats up to 20 years, contributing to their exceptional longevity.
Researchers identified two genetically distinct 'urban' and 'rural' fox populations in Berlin, influenced by physical barriers and human activity levels. Foxes from the city population are bolder but prefer to avoid areas of high human activity, highlighting their risk management strategies.
Researchers confirm swamp wallabies ovulate and mate while carrying a full-term fetus, creating a unique reproductive strategy that supports continuous embryo development. This phenomenon allows the female to be pregnant throughout her reproductive life, exceeding the duration of the oestrous cycle.
Scientists have discovered a new microscopic process called optical intersite spin transport (OISTR) that allows light to trigger a displacement of electrons between atoms, influencing the local magnetization. This process is accompanied by a leveling of electron reservoirs and can be tailored by bringing together specific types of atoms.
A new study highlights the need for systematic surveys and novel data collection methods to assess poaching's impact on biodiversity in forested areas. The research provides critical information for protecting rare species in landscapes with severe defaunation.
UVphotonics presents novel UV LED developments with customizable wavelengths and compact size ideal for water purification, disinfection, medical diagnostics, and more. The company's product portfolio has been expanded to include integrated driver circuits and fully packaged UVC LEDs.
Researchers developed a simplified NMR-based method to determine the atomic structure of natural products more accurately and efficiently. The new method enables chemists to analyze complex molecules with few hydrogen atoms, such as spiroepicoccin A isolated from marine microorganisms.
A research team has found that Cyanobacteria produce relevant amounts of methane in oceans, inland waters, and on land. This discovery refutes the traditional assumption that methane generation occurs only under anoxic conditions by microbes of the domain Archaea.
Researchers developed a method combining empirical knowledge of fishery stakeholders with scientific understanding to identify ecological cause-effect relationships in pike populations. The collective intelligence of nature users accurately captured complex human-environment relationships, exceeding scientific knowledge in some cases.
The Ferdinand-Braun-Institut presents its developments in diode lasers and UV LEDs, including high-power stacks for industrial laser technology and a compact dual-wavelength system for SERDS spectroscopy. The institute also exhibits a terahertz camera sensor with high sensitivity and fast response time.
Researchers tracked common noctule bat trajectories in Berlin to find that they mostly avoid built-up areas with artificial light. Instead, they use dark corridors like forests, parks, and watercourses for commuting and foraging.
Researchers from Forschungsverbund Berlin isolated and cultured different cell types from domestic cat corpus lutea tissue, enabling detailed characterization of their function. This breakthrough can aid in understanding the causes and mechanisms behind the longevity of corpus luteum in lynxes.
Research found that even low levels of urban skyglow can suppress melatonin production in humans and vertebrates. The sensitivity threshold for humans is 6 lux, while fish and rodents require much lower levels. Artificial light at night can disrupt nocturnal melatonin production.
The study reveals that inbreeding is high among southern white rhinos due to their unique mating behavior, which includes female preference for individual males over others.
Researchers found that bats avoid all light colors and prefer dark entrances, regardless of color. Inside caves, bats react sensitively to any light, showing a slight preference for red over amber and white lights only when dark was not an option.
Expert survey reveals conflict between renewable energy and bat protection, with most stakeholders agreeing that ecosystem sustainability is crucial. Possible solutions include accepting reduced wind turbine efficiency to compensate for shutdown times and prioritizing bat conservation over green electricity production.
A team of researchers has generated multi-millijoule 3-cycle pulses at an unprecedented average power level of 318 W, paving the way for industrial applications. The achievement marks a significant milestone in few-cycle laser technology and opens up new possibilities for highly parallelized material processing.
Conservationists have rediscovered the silver-backed chevrotain, a small deer-like mammal with a silver sheen, in southern Vietnam. Camera trap surveys revealed 275 photos and 1,881 photographs of the species over five months.
A new study finds that illegal hunting using indiscriminate snares is more severe than forest degradation through selective logging for ground-dwelling mammal and bird communities. The research suggests maintaining habitat quality may not be sufficient to protect tropical biodiversity, and overhunting should be prioritized.
Researchers have synthesized a new type of chiral light that can tell right- and left-handed molecules apart. This innovative light interacts differently with each type of molecule, allowing for precise control over chemical reactions and potential applications in drug development.
Researchers used solid-state NMR spectroscopy to observe rhomboid protease movement, revealing a gate that opens for substrate protein entry. This study provides new insights for developing medication targeting these proteins.
Researchers have discovered a new mechanism for proton transfer between acids and bases, involving hydroxide/methoxide ions rather than hydrated excess protons. This breakthrough has significant implications for aqueous proton transport in solutions, hydrogen fuel cells, and transmembrane proteins.
Researchers found higher levels of stress hormone corticosterone in white-tailed sea eagles near paths or roads, but not on breeding success. Protection zone regulations may need adjustment to prevent negative effects on breeding performance.
Scientists have developed a new way to extract topological information from quantum materials using ultra-fast laser light, which can distinguish between trivial and topological insulators in a millionth of a billionth of a second. This method could lead to the development of optically-controlled electronics that process information te...
Fungicides can negatively impact aquatic fungi growth, altering their role in decomposing organic matter and as a food source for higher trophic levels.
Researchers discovered cortisol in Egyptian mongoose hair, providing a long-term biomarker for stress. The study's results could help monitor the impact of habitat changes on mongoose populations and their competitors, such as the Iberian lynx.
In a recent study, male Trinidad Guppies were found to reach more novel food patches when in the presence of females. In contrast, female foraging was independent of male presence. The researchers suggest that life in a group can be advantageous, allowing individuals to share information and find food more easily.
A mathematical model, EcH2o-iso, was developed to reflect the complex interplay between vegetation, soil, and water regimes. The model shows that certain types of vegetation can increase evaporation or promote groundwater recharge.
Researchers at the Ferdinand-Braun-Institut developed beta-Ga2O3-MOSFETs with a high breakdown voltage and record power figure of merit, achieving unique performance figures close to theoretical material limits. The improved electrical properties lead to lower on-state resistances and higher breakdown voltages.
A team of researchers has discovered a new mechanism for inactivating the mTor protein, which is involved in cell growth and metabolism. The study reveals that a specific lipid kinase can be activated by protein kinase N, leading to the inhibition of mTOR-dependent cell growth.
A team of scientists has successfully fertilized seven out of ten northern white rhino eggs using ICSI and frozen sperm from two bulls. The eggs were matured at Avantea in Italy, marking a critical milestone in the BioRescue program aimed at saving the species from extinction.
Long-term data analysis reveals non-infected regions have a higher risk of infection due to seasonal changes in movement patterns. The study emphasizes the importance of focusing on specific individuals, seasons and areas to prevent future outbreaks.
A team of researchers has successfully demonstrated that potassium ions migrate through the selectivity filter of potassium channels without water molecules in between. Their study, published in Science Advances, utilized solid-state nuclear magnetic resonance spectroscopy to provide conclusive evidence under natural conditions.
The study found a significant decline in global freshwater megafauna populations, with large fish species like sturgeons and salmonids facing the highest threats. Conservation efforts have shown some success, but monitoring and protection remain inadequate for many species.
Researchers develop innovative technology to transform proteins and antibodies into stable drug transporters, reducing side effects and increasing effectiveness in targeted cancer treatment. The new method allows for lower doses and fewer severe side effects compared to existing antibody-drug conjugates.
A recent study published in Nature Communications found that animals' responses to climate change are insufficient to cope with rising temperatures. The analysis of over 10,000 studies suggests that even common and abundant species struggle to adjust their traits in time.
Scientists propose alternative biological concepts to combat fungal disease in aquatic organisms, including increasing host diversity, vaccination, probiotics, hyperparasitism, and using 'parasite eaters'. These methods aim to reduce environmental harm and promote sustainable aquaculture practices.
A team of scientists collected non-invasive samples from lynx in Turkey, revealing unexpectedly high genetic diversity and low inbreeding rates. Females stay within their birth territories while males disperse after separation from mothers.
Researchers found that eukaryotic microorganisms, such as dinoflagellates like Pfiesteria piscicida, thrive on microplastic particles, reaching densities 50 times higher than in surrounding water. This discovery highlights the potential for microplastics to transport microorganisms over long distances.
A team of researchers has developed a new experimental and theoretical framework to interpret spectroscopic signals from magnetic materials when probed with extreme ultraviolet radiation. This allows for the disentanglement of signals from different elements in the material, enabling the study of complex dynamic processes.
Researchers have successfully demonstrated strong and directionally dependent interactions between remote fluids of excitons, a type of quasi-particle in semiconductors. This breakthrough opens up new avenues for creating exotic states of matter and exploring the properties of dipolar quantum gases and liquids.
A recent study led by IGB demonstrates complex learning behaviour in Atlantic sturgeons. The fish trained to search for food in a sandy environment showed improved feeding behavior and increased formation of the transcription factor neurod1 in their brains.
Researchers used ultrashort x-ray pulses to monitor absorption of circularly polarized x-rays by Fe and Gd atoms during ultrafast demagnetization. They found that the demagnetization process at Gd atoms is significantly faster than in pure Gd.
Researchers found that a migratory bat species uses the sunset direction to navigate, contradicting previous assumptions that echolocation was the primary navigation method. The study also revealed that young bats must learn this skill through social interaction with older conspecifics.
Researchers create model to predict faecal bacteria spread in summer, highlighting hydrological connectivity's crucial role. The model captures actual distribution of bacteria but needs adaptation for winter months due to temperature and soil conditions.
Scientists demonstrate amplification of optical phonons in a metal-semiconductor nanostructure using THz pulses, showing potential for ultrasound imaging with sub-nanometer resolution. The amplification process relies on population inversion and stimulated emission of phonons.
A study found that urban bats' responses to artificial light vary across species, seasons, and lamp types. Tree cover mitigates the negative effects of light pollution on bat activity, allowing some species to thrive in areas with high tree density. However, most species are repelled by street lamps, regardless of UV emission.
A pilot project aims to convert 15.5 ha of palm oil plantations back into rainforest, creating a wildlife corridor for endangered species. The project contributes to the Aichi Biodiversity Targets and climate goals by reforested 350 million ha of rainforest and renaturising degraded land by 2030.