Articles tagged with Ecology
A new Australian study proves kangaroos and wallabies fear humans more than dogs, devils or wolves, with a 2.4 times higher likelihood of fleeing in response to human voices.
A UMaine graduate student's research found that small mammal personalities determine the effectiveness of pilferage in mice and voles. Deer mice were the most accomplished thieves, while individuals with lower body condition and female voles were more likely to pilfer.
Using tools improves energy intake and reduces tooth damage in sea otters by allowing access to harder prey. Female sea otters, with smaller body size and weaker biting strength, particularly benefit from tool use, increasing their foraging success.
A collection of landmark studies in statistical ecology has been published, featuring 36 papers that have provided ecologists with crucial analytical tools for gaining insight into the natural world. The development of novel analytical techniques has mirrorled the history of the field as a whole.
A new study reveals no consistent pattern between tree diversity and forest productivity at different elevations; biodiversity can increase or decrease productivity in various regions.
The BiCIKL project has shared lessons learned on improving data findability, accessibility, interoperability, and reusability (FAIR-ness) of various biodiversity data types. The project's policy briefs provide recommendations for policymakers and research funders to adopt best practices and guidelines.
A comprehensive global dataset shows that phylogeny plays a crucial role in shaping wood density patterns. Wood density varies significantly among different biomes and climatic zones, with higher values found in drier regions. Phylogenetic signal explains 84.3% of total variation, while environmental factors account for only 2.7%.
Environmental and hydrologic models predict a larger-than-expected decline in suitable malaria transmission areas in Africa, starting after 2025. The new study incorporates hydrologic metrics that account for river inflow and densely populated areas near large-scale river networks.
Climate change threatens freshwater habitats, disrupting microbial communities essential for nutrient cycling and water quality maintenance. Many abundant freshwater bacteria with small genomes experience extended periods of adaptive standstill, limiting their ability to adapt to changing environmental conditions.
The Human Frontier Science Program has awarded 2024 research grants to 108 top life scientists from 23 countries. The program supports interdisciplinary research and international collaboration, with grants averaging $400,000 per year.
Citizen scientists uncover rare species in urban areas, increasing knowledge of urban biodiversity and guiding management. BioBlitzes provide a cost-effective tool for local governments to make informed decisions on environmental stewardship.
A new study by UNC Charlotte Professor Abigail Leavitt LaBella and colleagues reveals that yeasts do not fit the 'jack of all trades, master of none' adage. They found that yeasts with a broad ability to metabolize different carbon sources are actually efficient growers.
A study by University of Hawaii researchers suggests that revitalizing Indigenous aquaculture systems, known as loko iʻa fishponds, can increase locally available seafood production. This revival has the potential to boost local food production and provide a sustainable solution to Hawaiʻi's seafood supply.
A study on zebra finch birds found that moderate noise exposure in eggs impairs growth, telomere length, and adult fitness. The research suggests that acoustic environments of breeding birds in cities should be better managed.
A global meta-analysis of 186 studies reveals that conservation actions have a net positive effect on biodiversity in two-thirds of cases. Conservation efforts targeting species and ecosystems, such as invasive species control and habitat restoration, show the largest impact.
A global science team has built a groundbreaking tree of life for flowering plants by analyzing 1.8 billion letters of genetic code from over 9,500 species. The study sheds new light on the evolutionary history of flowering plants and their ecological dominance on Earth.
A new study led by the University of Arizona finds that early-life struggles can cut adult lifespan in red squirrels by at least 14%, but a natural food boom may buffer against these effects. The researchers suggest that climate change could disrupt this dynamic, potentially affecting animal resilience.
Researchers analyzed modern and historic mussel shells to investigate the impact of climate change on ecologically and commercially important mollusks. They found that shells collected today are significantly more porous than those collected in the past, suggesting increases in temperature led to increased porosity.
Researchers have analyzed over 44,000 high seas survey gear hauls across the North Pacific to create detailed maps showing salmon species' ocean habitats and temperature tolerances. The study highlights varying cold-water tolerance among salmon species, with implications for climate change adaptation.
A mysterious plasmid, pBI143, found in 90% of human intestines, could be used to identify faecal contamination and offer insights into intestinal diseases. The discovery also highlights the prevalence of 'cryptic' plasmids in human gut microbiota.
A study by MLU found that ecosystems with diverse plant mixes can regulate up to 5% of regional climate, while plant traits like leaf thickness affect climate. The research highlights the complex relationship between plants and climate, emphasizing the need for biodiversity in nature conservation.
Fruit eating birds play a vital role in forest ecosystems by consuming, excreting, and spreading seeds to allow trees to grow and function. The study found that highly fragmented landscapes restrict bird movement, reducing carbon recovery potential by up to 38 percent.
A Dartmouth-led study found that people in New England, particularly those who frequently consume seafood, face an increased risk of PFAS exposure. The researchers recommend setting safety standards to limit seafood consumption and highlight the need for more stringent public health guidelines.
A new study reveals that wildebeest populations which no longer migrate are less genetically healthy and more prone to decline. The loss of migration routes due to fencing and roads leads to lower genetic diversity, increased inbreeding, and reduced fertility.
A new study by University of Alaska Fairbanks researchers challenges the long-held scientific principle that animals in high-latitude climates are larger than their relatives in warmer climates. The study found that Bergmann's rule applies only to a subset of homeothermic animals and ignores other climatic variables.
A new global study by the University of Copenhagen and University of Hohenheim finds that diversified agriculture improves food security, biodiversity, and well-being while having no negative effect on yields. Strategies such as livestock diversification and soil conservation yield positive outcomes.
A new analysis of grackle feeding behaviour suggests that male grackles are more efficient foragers in uncertain environments, relying on risk-sensitive learning to navigate chaotic settings. This strategy allows them to dominate urban environments and lead their species' invasion.
Recent advancements in AI and IoT have improved earthquake prediction by identifying patterns in historical seismic data. However, limitations such as computational complexity, data quality, and interpretability remain, requiring a comprehensive approach to integrate diverse datasets.
Researchers suggest using DOM to assess freshwater chemodiversity and monitor pollution effects on ecosystem health. High-resolution mass spectrometry can help pinpoint pollution sources, including those in drinking water.
Researchers found that crawfish can accumulate high levels of toxic lithium in their bodies, which can be passed to humans through the food chain. The study highlights the potential risks of lithium contamination in the environment and emphasizes the need for responsible disposal practices.
A University of Illinois team found tropical birds can handle thermal variation, disproving the climate variability hypothesis. The study, which measured metabolic rates across a range of temperatures, suggests that birds in the Neotropics may be more resilient to warming than previously thought.
A new study reveals that marine heat waves disrupt the ocean food web in the northeast Pacific Ocean, shifting energy and impacting predators and prey. Gelatinous zooplankton thrive during heat waves, drawing energy out of the ecosystem and potentially affecting fish and marine mammals.
A new paper published in Global Ecology and Conservation found that pronghorn productivity is declining due to oil and gas development and woody encroachment. The study recommends preemptive management of woody vegetation to ensure sufficient forage for pronghorns, a crucial step in preventing population decline.
Researchers found associations between prenatal vitamin and metal exposures and epigenetic aging biomarkers in early life. A one standard deviation increase in essential metals was associated with lower Horvath EAA at birth, while arsenic was linked to greater EAA at birth and in childhood.
Global biodiversity change indicators show deepwater sharks and rays are highly sensitive to overexploitation, with one-third targeted for fishing and half threatened with extinction. Implementing worldwide depth limits and no-fishing areas could enhance protection if paired with international regulations.
An egg-laying caecilian species of amphibian has been found to produce a lipid- and carbohydrate-rich resource, referred to as 'milk', which it feeds to its hatchlings several times throughout the day. This behavior is not known in any other amphibian, providing new insight into the evolution of reproductive strategies.
A study analyzing 610 chemicals found in European watercourses detected 504 substances, including pesticides, pharmaceuticals, and PFAS, with 74% of samples exceeding scientific limit values. The chemical footprint concept quantifies the impact of mixtures on aquatic organisms, highlighting the need for further monitoring and evaluation.
A recent study suggests that nature experiences positively impact human time perception, particularly in temporal duration and perspective. This can lead to a sense of 'gaining time' and balance feelings of time scarcity. By reconnecting with nature, people may develop a more positive and balanced time perspective.
Research by Max Planck Institute for Evolutionary Anthropology and Duke University found that early life adversity, such as drought and poor habitat quality, can leave lasting signatures in baboon DNA. Multiple exposures to early adversity appear to have compounding effects on DNA methylation.
Researchers studied Prorocentrum cordatum to understand its molecular processes, revealing a unique photosynthetic machinery that may help it adapt to changing light conditions. The findings could lead to improved understanding of harmful algal blooms and their role in climate change.
A 8-month study on a warm-temperate grassland ecosystem found that some predators switch prey and detritivore prey contribute to network stability. These 'network coordinators' offer a measure of flexibility to the overall network architecture.
The EU-funded BiCIKL project has developed a flagship outcome - the Biodiversity Knowledge Hub - a one-stop portal for understanding biodiversity research infrastructures. The consortium has also created 12 services dedicated to FAIR and linked ready-to-use biodiversity data.
Researchers found that pelagic fish are more strongly impacted by human pressure but also benefit from marine protected areas. The study highlights the importance of increased protection in remote regions to safeguard the world's largest and most endangered pelagic fishes.
Research shows that invasive Asian honeybee population in North Queensland has overcome a genetic bottleneck to grow into a thriving colony. The study highlights the importance of this case for understanding population resilience and provides insights into how some species can adapt quickly despite low genetic diversity.
A new rapid test has been developed to identify hantavirus in South Korea, paving the way for early outbreak control. The Flongle sequencing-based diagnostic is cost-efficient and can detect HTNV genomes within 3 hours.
A global survey of 200+ major cultural organizations reveals significant room for improvement in social and environmental sustainability. However, top performers like the National Galleries of Scotland and Sydney Opera House showcase successful integration of sustainability into strategy and operations.
A team of researchers has developed a bilayer nanofiber membrane hemostat using natural proteins derived from mussels and silkworm cocoons. The hemostatic agent demonstrated rapid acceleration of tissue adhesion and hemostasis in bleeding wounds, preventing the infiltration of water containing infectious agents.
A new study suggests that speed is the key to snake evolution, with over 4,000 species emerging through rapid changes in feeding, locomotion, and sensory processing. Snakes' adaptability allowed them to exploit new opportunities after an asteroid impact, leading to their diversity.
The ERC project will integrate data on plant traits from above- and below-ground levels to predict the effects of global change scenarios on plant communities. This comprehensive approach aims to shed new light on how plant communities structure and respond to environmental pressures.
A study published in Environmental DNA analyzed seawater samples from the Ogasawara Islands, detecting 124 unique fish species and 38 coral genera. The research highlights the importance of monitoring biodiversity in remote regions using efficient methods like eDNA sequencing.
A new species of giant anaconda, Eunectes akayima, has been discovered in the Amazon by a team of scientists led by Professor Bryan Fry. The anaconda measures up to 6.3 meters long and weighs around 500 kilograms, making it one of the largest known species of anacondas.
A study by University of Seville researchers reveals that climate change has brought forward the flowering period in Doñana National Park by 22 days, affecting 80% of species. This shift leads to increased competition for pollinating insects and altered plant community dynamics.
Researchers found that competition pushes zebra ahead of wildebeest, while wildebeest facilitate growth that allows gazelle to follow. Large seasonal migrations in Serengeti National Park are driven by a balance between competitive and facilitative forces.
The tawny owl's pale grey plumage is linked to crucial functions aiding survival in cold environments, including energy homeostasis and fat deposition. Genetic analysis reveals a 70-100% accuracy in predicting grey coloration through specific genetic variants.
Fallow deer were first introduced to Britain by the Romans, not the Normans, and have been repeatedly moved by humans as a symbol of colonial power. Their strong association with Greco-Roman goddesses has driven much of their movements around the Mediterranean.
Researchers developed customized adhesive patches using mussel-derived proteins, exhibiting strong underwater adhesion, biocompatibility, and adjustable degradation time. These patches showed successful treatment in animal models, paving the way for personalized medical applications.
The study reveals that non-native earthworms have colonized 97% of soils across North America, with alien occupation higher in the northern part of the continent. This poses a threat to native ecosystems, including forests and grasslands, and highlights the need for better understanding and management of these invaders.
The Cary Institute's new program provides nine teachers with six weeks of collaborative research experience in ecosystem science. They will develop innovative curricula based on their research, increasing their capacity to educate students about ecology and global change.
Researchers at the University of Sydney have developed a method to shield plants from herbivorous mammals by fooling them with artificial odors, mimicking plants they naturally avoid. This approach is more humane and low-cost than current methods, and shows promise for protecting valuable plants globally.
A meta-analysis of 221 studies finds that megafauna size and dietary selectivity have stronger effects on plant diversity than species origin. This challenges the assumption that introduced megafauna have greater negative impacts on ecosystems.