Articles tagged with Ecology
A new large-scale open dataset of Asia's terrestrial ecosystems is now available, providing a long-awaited foundation for understanding the region's role in the global carbon cycle. The JapanFlux2024 dataset combines 683 site-years of eddy covariance data from 83 locations across Japan and neighboring regions.
A new study finds that birds are singing for longer periods of time due to light pollution, with prolonged vocalizations averaging 50 minutes. The research analyzed over 500 bird species and found that those exposed to more light have the most significant impact from light pollution.
A new R package, phylolm.hp, extends the averaged shared variance concept to phylogenetic generalized linear models, accounting for correlated predictors. This allows for more accurate quantification of each variable's contribution, overcoming multicollinearity effects.
The majority of extant species belong to a limited number of rapid radiations, forming groups with many species that evolved in a relatively short period. These rapid radiations are thought to occur when new ecological niches open up, such as the emergence of multicellularity and powered flight.
Researchers used gene expression data to identify genes related to stress responses in wild varieties, which could be beneficial for developing hardier crops. Domesticated species showed genes related to hormone regulation and chemical detoxification.
A recent study co-authored by UCF Assistant Professor of Biology Robert Fitak reveals that the 1990s translocation of Texas pumas improved the Florida panther's genetic health while preserving its unique ancestry. The study found increased genetic variation, retention of unique traits, and a decrease in harmful mutations.
Researchers have found that Black Mambas accumulate heavy metals such as lead and mercury in their scales. This allows them to serve as a natural indicator of environmental pollution levels. By analyzing scale clippings from these snakes, scientists can accurately measure spatial patterns of pollution without harming the snakes.
A University of Missouri-led study has uncovered how poplar trees can naturally adjust a key part of their wood chemistry based on changes in their environment, supporting improved bioenergy production. The discovery sheds light on the role of lignin and its potential to create better biofuels and sustainable products.
A long-term study found that Eastern Massasauga rattlesnakes are 13% less likely to have surviving offspring and have a nearly 12% lower annual survival rate when inbred. Habitat connectivity is crucial for the snakes' survival, as fragmentation isolates populations, making it difficult for them to find mates.
Researchers found that behavioral flexibility is related to exploration and dispersal in great-tailed grackles. Individuals with greater flexibility exhibit more exploratory behavior, which facilitates their ability to adapt to new environments and expand their geographic range.
Researchers at OIST found that only cyanobacteria Trichormus azollae are true symbionts of Azolla ferns, with their genomes showing extreme decay and loss of genes. The study sheds light on the genomic impacts of symbiosis and its potential applications in food security.
A study along the Yangtze River found that comammox Nitrospira microbes adjust their nutrient exchange based on terrain type. This adaptation enables them to thrive in oligotrophic environments, with mountain-foothill regions having stronger microbial cohesion and closer connections between microorganisms.
A new study found that river otters in Chesapeake Bay eat diverse prey and parasites, including flukes, dinoflagellates, and invasive fish. The researchers suggest that otters may be helping to clean up polluted environments by consuming parasite-infected animals.
Researchers discovered a large population of critically endangered Plains-wanderers in South Australia's arid interior, defying their previously believed habitat preference. The birds were found to select low-growing shrublands with specific composition over dense native grasslands.
A team of researchers at Mizzou identified which immune cells in pigs have receptors most reactive to influenza. This knowledge may help develop improved therapies or vaccines for both species. The study's findings could also aid in the creation of more effective flu vaccines that provide immunity for longer periods.
Researchers used two ecological theories to describe the tangle of interactions between three ant species and a recently introduced fly that preys on one of the ant species. The interaction creates chaotic patterns, meaning any one of the four insect species could be dominant at any point in time.
Researchers found that the caterpillars' cycles interact with natural controls like viral disease, and they're highly adapted to their environment. Outbreaks can be predicted and damage controlled, but the exact timing is linked to specific factors.
A new study found that dolphins and whales interact in a mostly mutual way, with humpback whales displaying positive behaviors towards dolphins. Humpback whales were observed rolling from side to side and moving slowly towards the dolphins with their head and rostrum.
The Kunming-Montreal Global Biodiversity Framework sets robust targets for protecting marine biodiversity, addressing its complexity and variability. By focusing on key indicators such as species distribution, genetic diversity, and ecosystem structure, policymakers can track changes and implement effective conservation measures.
TDCPP's binding to the membrane thyroid hormone receptor impairs motor neuron development and causes locomotor dysfunction in zebrafish. The study establishes a novel adverse outcome pathway framework for predicting TDCPP's neurotoxicity.
A new statistical model using GPS tracking data accurately predicted nest success for the California Condor, demonstrating its potential to inform conservation decisions. The model's results were corroborated by field observations and camera footage, allowing researchers to assess nest fate with high accuracy.
Researchers at Osaka Metropolitan University discovered medaka reproductive behavior begins in dark period around 7 a.m. and peaks at 8 a.m., with overall behavior similar to that observed in the wild, except for a 3-4 hour delay in courtship and reproduction times compared to natural environments.
A new study by Max Planck Institute scientists reveals female mountain gorillas can win one in four conflicts and outrank non-alpha males. They also enjoy priority access to food resources over males they overpower, blurring the traditional male-dominated narrative.
The Ecological Society of America's Annual Meeting in Baltimore will focus on urban ecology, examining strategies for urban tree planting, pollinator behavior, and the role of urban farms and green spaces. The meeting aims to highlight how cities support ecological processes and biodiversity.
Researchers captured unique footage of Indian Ocean seabirds catching flying fish in mid-air using lightweight cameras. The study showed that these birds exploit windy conditions to conserve energy while hunting, suggesting a possible adaptation to patchy food sources.
Australian skinks have developed tiny changes in a muscle receptor that blocks nerve-muscle communication, preventing paralysis and death. This finding could inform the development of novel antivenoms and therapeutic agents to counter neurotoxic venoms.
The study found that bird species richness declined on nearly all Izu Islands, resulting in a degradation of bird communities. The degradation is likely due to direct predation and reduced food resources caused by introduced Japanese weasels.
Scientists have uncovered the remains of a vast animal community that lived in the European Arctic 75,000 years ago. The bones represent the oldest example of an animal community in the region during this warmer period of the ice age, providing valuable insights into how wildlife responded to dramatic climate shifts.
Researchers found that mangrove populations have nearly tripled in areas with oysters, leading to significant acidification of oyster reef sediment. Oyster shell dissolution could impact reef viability and services like filtration and storm surge reduction.
A new study has coined the term 'scrumping' to describe great apes' fondness for eating ripe, fermented fruit from the forest floor. The researchers suggest that this behavior may have played a significant role in the evolution of human alcohol tolerance.
The book examines biodiversity, ecology, and conservation strategies across Mexico's deserts, focusing on the Baja California Peninsula, Chihuahuan Desert, Sonoran Desert, and Tehuacán-Cuicatlán Valley. Key findings include the ecological roles of natural products and traditional medicinal plants.
A new analysis found that diversity hotspots of mycorrhizal fungi overlapped with plant diversity hotspots in only 8.8% and 1.5% of cases, respectively. The study suggests that prioritizing conservation based on aboveground diversity fails to capture diverse belowground regions.
A new study published in Ecology reveals traditional methods of tracking animal movement may be underestimating the actual distance travelled by whales, particularly for marine species.
A large-scale study found that zoos are often breeding endangered animals in skewed sex ratios, which can limit genetic diversity and increase the risk of extinction. The research highlights the need for zoos to collaborate and share data on their animal populations to manage conservation efforts effectively.
A study published in the Royal Society's Proceedings B found that closely related bat and bird species share the same habitat due to their shared evolutionary history. This challenges previous ideas about competition driving species apart, suggesting that animals with similar needs tend to group together in suitable habitats.
A KAIST research team has developed an optogenetic platform, RELISR, that enables precise spatiotemporal control over the storage and release of proteins and mRNAs. The system employs specific protein-protein and protein-RNA interactions to isolate target molecules within engineered membrane-less condensates.
Wild great tits exhibit clear behaviors signalling 'divorce' long before the breeding season, according to a study by Oxford researchers. The team used data from the Wytham Woods great tit project and found that faithful birds visited feeding stations with their partners more often than those that went on to divorce.
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.
A new study using NASA's PACE satellite data established a novel method to determine global plant productivity. The technique relies on the light plants reflect, allowing for accurate capture of short-term changes. This approach has significant implications for understanding carbon sequestration, climate change, and ecosystem monitoring.
A study analyzing data from 10 species at 14 national parks found that animals avoid human infrastructure like roads, trails, and buildings. However, responses varied across populations, species, and individual animals, with some adapted to human presence.
A recent MIT study found that decreases in seed-dispersing animals can lead to a major reduction in forest carbon absorption. The researchers analyzed data from thousands of vegetation plots and found that healthy populations of seed-dispersing animals can absorb up to four times more carbon than similar forests with fewer animals.
A new study reveals how US national parks influence wildlife behavior, with some species avoiding humans while others adapt to developement, affecting ecological dynamics and conservation efforts.
Researchers found humpback whales lose 11,000kg of blubber during annual migrations, equivalent to energy from 57,000 kg of Antarctic krill. The study reveals a dramatic seasonal change in body condition, with whales fattest in autumn and slimmest in spring.
A study of 25 years of behavioral observations found that gorillas' aggression is shaped by their individual needs and social environment. Pregnant and lactating females directed more aggression towards more powerful group members, while females with more males in the group targeted less powerful opponents.
Researchers analyzed 96 years of forest census data, revealing homogenization trends and loss of tree species. The study suggests that reduced forest diversity makes the ecosystem less resilient to future disturbances.
The study found that most plastic bottles and caps on Pacific coast beaches in Central America originated from local companies, while Asian origin bottles were more common on island coasts. The research sampled over 12,000 kilometers of coastline and collected over 92 mainland beaches, 15 island beaches, and 38 human settlements.
Scientists have released high-resolution maps revealing 90% of mycorrhizal fungal biodiversity hotspots outside protected areas, posing a threat to carbon drawdown and ecosystem resilience. The research highlights the critical role of mycorrhizal fungi in regulating Earth's climate and ecosystems.
A 150-year-old fossil specimen has been reidentified as a type of invertebrate called a lobopod, marking the first time this line of sea creatures is known to have left the ocean. The study suggests that the lobopod likely lived in a freshwater environment and had chemical defenses that indicate it may have spent part of its time on land.
A recent study published in PLOS One found that European peatlands require warm temperatures and a specific water table depth to accumulate plant matter and store carbon. The study suggests that maintaining a water table around 10 centimeters below the surface is key to allowing peat to grow quickly and store carbon over the long term.
A new breeding concept for wheat aims to increase resilience to climate change by utilizing the microbiome. Researchers have identified varieties that produce natural nitrification inhibitors, which help control soil nitrification processes.
Researchers at Oregon State University report a remarkable case of ecological restoration in Yellowstone National Park. The reintroduction of wolves has initiated a trophic cascade that reduced elk populations and allowed aspen trees to begin recovering, with nearly 80% of the 87 surveyed stands showing signs of growth.
A recent study found that behavioral flexibility is related to foraging breadth, not social or habitat use behaviors, in great-tailed grackles rapidly expanding their geographic range. The researchers discovered that flexible individuals switched between different food types more often in the wild.
A University of Michigan study found that goldenrod plants growing in nutrient-rich soil are more likely to defend themselves against insects. The study showed that goldenrod that grew in fields fed annually with agricultural levels of nitrogen were more likely to 'nod' as a defense mechanism.
Researchers uncover osteoderms in nearly half of all lizard species worldwide, shedding light on heat regulation, mobility, and calcium storage. This discovery reshapes the understanding of reptile evolution, suggesting that these skin bones evolved in response to environmental pressures.
A recent study found that tropical cyclones in Madagascar significantly elevate the risk of malaria infection and reinfection. The introduction of long-lasting vaccines can help sustain malaria infection control during climate-related intervention gaps, but layered strategies are essential to stop transmission.
Research reveals that warming seas are changing mating routines of critically endangered female angelsharks, prioritizing staying cool over visiting breeding grounds. This mismatch in behavior could have severe consequences for the species' future.
Researchers discovered that male peacock spiders use sensory exploitation to deceive female spiders by mimicking a wasp's face through visual trickery. The illusion is most effective at longer distances or in the female's peripheral vision, allowing males to initiate courtship without being rejected.
Research reveals key differences in how ocean viruses affect carbon flow, with potential climate implications. RNA viruses disrupt carbon and nutrient recycling, making it harder for bacteria to break down organic matter.
Researchers at University of Missouri uncover the antiviral potential of defensins, tiny proteins with powerful antimicrobial properties. Defensins can block SARS-CoV-2 from entering human cells, offering a promising approach to treating viral and bacterial infections.
Wild chimpanzees show reduced participation and performance in tool-use behaviours as they age, with individual differences in impact observed. The study provides evidence that old age leads to a gradual withdrawal from tool use, affecting efficiency and daily tasks.