Articles tagged with Ecology
Researchers analyzed 48 years of data on wild baboons' family trees and mate choices to understand how they avoid inbreeding. The study found that baboons generally steer clear of mates that are half-siblings or closer, but show less discrimination with their father's side of the family.
A mange outbreak in Argentina's San Guillermo National Park has caused a domino effect, impacting pumas, condors, and grasslands. Vicuña populations plummeted from 17 individuals per square kilometer to just 1 by 2020, while condors disappeared due to the loss of their primary food source.
Researchers found that changing conditions in the California region have limited resource accessibility, causing the squid to speed through their life cycles and alter their ecosystem impact. The study also documents significant differences between Californian and Alaskan market squid populations.
Soil microbiota plays a crucial role in restoring soil function and ecosystem services. Research suggests that leveraging these microorganisms can improve land restoration technologies and return resilience to the soil-plant ecosystem.
Bees face challenges in foraging for food due to human activities such as pesticide use, pollution, and urbanization, affecting their ability to thrive. Mitigating these impacts through pollinator-friendly greenspaces and national bans on pesticides shows promise in alleviating pressures on bee populations.
A comprehensive analysis of 1,800 bird species found that adult sex ratios are the main driving force behind differences in sex roles. Climate, life histories, and social environment were not significant factors. The study provides new insights into the evolution of sex roles in birds.
Researchers in Acadia National Park found that regulations reducing atmospheric sulfur have led to a partial recovery of algae ecosystems, despite ongoing climate change impacts. Clear-water lakes like Jordan Pond are more sensitive to warming than brown-water lakes like Seal Cove Pond, leading to slower recovery rates.
Research found that an earlier start to the growing season enhances tree growth in cold, humid regions but not in dry areas. The study analyzed annual tree-ring width data and found distinct spatial patterns of tree growth in response to an earlier onset of cambial activity.
A new University of Michigan study found that higher levels of biodiversity reduce extinction risk in birds by providing a safe harbor for species at risk. The researchers used a comprehensive dataset covering over 99% of bird species and found diverse communities protect these species, allowing them to persist.
Researchers tracked a Mongolian gazelle traveling over 18,000 km, while new studies on raccoon movement inform improved vaccination strategies against wildlife disease. In contrast, urban bird species exhibit varying body weights and lifespans based on city characteristics.
A study of over 1,000 people in Hungary found that those with strong connections to nature had lower fear scores for snakes and spiders. This association may be a protective factor against developing these phobias, which can significantly impact daily life.
A new analysis has identified common demographic and life history traits among species at risk of extinction. The study found that these traits contribute to patterns of vulnerability, with some species exhibiting higher extinction risks due to factors like smaller population sizes and slower reproductive rates.
Researchers found that soybean plants adjacent to pollinator habitats produce larger seeds due to increased bee visitation. The presence of pollinators also influences the bee communities in soybean fields, with bees leaving for outside flowers less likely.
A study published in eLife found that growing rice alongside carp, mitten crabs, or softshell turtles increases yields by 8.7-12.1% while reducing nitrogen levels in the soil and weeds. This method also allows for increased profits as farmers can sell both animals and rice.
A study by University of California, Davis, and NOAA Fisheries confirms a sharp decline in basking shark sightings off California's coast since the 1970s. The researchers found a significant link between shark presence and environmental factors, such as sea surface temperature and El Niño oscillations.
Researchers discover new species of burrowing frog, Synapturanus danta, in Amazon peatlands. The frogs' unique calls and adaptations make them an important part of their underground ecosystem, contributing to nutrient cycling and soil structure.
Cambridge University researchers are tackling major environmental challenges in the UK's 'vegetable garden', the Fens, through a £10 million project. The team is working with farmers, landowners, and conservation groups to develop whole system solutions for climate change, extinction, and pollution threats.
A large-scale study of North American eagles found unexpectedly high frequencies of both chronic and acute lead poisoning. The study revealed that adults are more frequently chronically poisoned than younger species, and that regional trends play a significant role in the frequency of lead exposure.
Researchers found that wild honeybee colonies can survive in Galicia, Spain, particularly in areas with semi-natural habitats. The study suggests that extensive forms of land use and restoration of near-natural landscape features are crucial for insect conservation.
A new study identifies at least 16 distinct wasp species previously grouped as one, Ormyrus labotus, which lays eggs in over 65 insect species. The discovery highlights the importance of seeking out hidden diversity and underscores the need for precise identification to understand ecosystem health.
Researchers discovered a population of Colorado blue columbines that have lost their petals and nectar spurs due to a single gene mutation. The finding supports the punctuated equilibrium hypothesis, suggesting that adaptation can occur in large jumps rather than gradual changes over extended timespans.
A new study found that algae in common lichens can't adapt to temperature changes as fast as the Earth is warming, putting them at risk of extinction. The researchers' analysis suggests it could take hundreds of thousands or millions of years for these algae to evolve and adapt to modern climate change.
A recent study found that temperature variation affects infection rates and disease outcomes in distinct ways, with different effects depending on the average background temperature. Temperature fluctuations such as heatwaves can reduce infectivity and spore burden of parasites, but may not impact disease outcomes.
Grackles' ability to inhibit previous behavior is linked to their flexibility, according to researchers. The study used various tests, including a touchscreen computer test, to assess inhibition and flexibility in grackles.
The UK has allocated £40 million to support four major research studies tackling key global environmental challenges. The projects will develop solutions for net zero cities, improve biodiversity, help rural communities adapt to climate change, and provide evidence for policy decisions.
A study by the University of Queensland found that strong demand for tropical sea cucumbers as a delicacy is putting these species at risk of extinction. The research highlights the need for regulatory changes to protect the remaining populations and maintain healthy ocean ecosystems.
Researchers found that migratory birds, such as bar-tailed godwits and whimbrels, can fly for up to 9 days at a time, more efficiently than previously thought. The birds also demonstrate exceptional meteorological knowledge, adapting their routes to weather systems over long distances.
Researchers in California discovered that most trash items come from local sources, with nearly 60% of collected materials being plastic. The study suggests that cities can address the issue through bans on frequent litterers and increased street sweeping to prevent reoccurring litter.
A City University of Hong Kong study found that improper disposal of surgical masks can pollute over 54,800 Olympic-sized swimming pools annually with microplastics. The research also showed that microplastics accumulate in the food chain, affecting marine organisms and potentially harming higher-level species.
A new study finds that changes in precipitation can determine whether Miami blue butterfly populations grow or shrink. The research simulated future conditions using climate models to test how butterfly populations would respond to shifts in rainfall patterns.
Researchers found chytrid infections were more common and intense at higher elevations, with the California red-legged frog being among the most infected. The disease was also more prevalent in Baja California, where 68% of surveyed animals had the fungus, compared to 15% in Southern California.
Researchers used drones to visualize canopy height and identify 11,153 thousand canopy disturbances, including treefalls and dead trees. These disturbances were more common in older forests with steep slopes or certain soil types.
A new species of titanosaur dinosaur, Abditosaurus kuehnei, has been discovered in the Pyrenees with a semiarticulated 70.5-million-year-old skeleton being the most complete specimen found so far in Europe. The species is estimated to be 17.5 meters long and 14,000 kg heavy, representing a senescent individual.
Climate change is causing plants in the UK to flower one month earlier, with average first flowering dates advancing by a full month since the mid-18th century. This phenomenon can lead to ecological mismatch, affecting biodiversity and ecosystems.
Researchers have described two new species of hammerhead flatworms, Humbertium covidum and Diversibipalium mayottensis, found in France, Italy, and Mayotte. The species are small, iridescent, and potentially invasive, posing a threat to soil biodiversity.
A new study involving over 100 scientists estimates that there are approximately 73,274 tree species on Earth, including about 9,200 yet to be discovered. This represents a 14% increase from the current number of known tree species.
A new study reveals that temperate rainforests can play a crucial role in combating climate change by sequestering carbon and mitigating flooding. However, the research also shows that natural expansion of these ecosystems is unlikely to meet UK targets due to fragmentation and degradation.
A recent study published in the KeAi journal found that commercial banks continue to view small merchant renewable energy projects as risky, despite the trend towards 'greening of banks'. Government banks in the Philippines were more open to providing credit to these developers, highlighting the need for innovative financing solutions.
Researchers found that Eurasian reed warblers rely on magnetic inclination as a
A new study reveals that the genes present in a microbial community can predict its dynamic metabolic activity, with implications for the nitrogen cycle and other biogeochemical processes. The research provides insights into how scientists can infer metabolite dynamics from aggregate gene content, design microbial communities for speci...
Researchers detected 43 trillion miniature plastic particles in Switzerland every year, with estimates suggesting up to 3,000 tonnes of nanoplastics covering the country annually. The study reveals that nanoplastics originate primarily from urban areas and global emissions, posing potential health risks when inhaled.
A 2°C warming would lengthen summer by 20 to 21 days in mid-latitude regions like East Asia, the Mediterranean, and USA, resulting in 111 to 112 days of summer. Limiting warming to 1.5°C reduces summer season lengthening by 12 to 13 days.
Researchers found that the oral plug, a structure in fin whales, blocks the pharynx and prevents water from entering during lunge feeding. This allows the whale to swallow prey while keeping the respiratory tract protected.
Researchers from National Institute for Environmental Studies identified that radiocesium accumulates primarily in organic soil layers and stagnant water, contaminating organisms. Fertilizing contaminated areas with potassium can suppress biological absorption of radiocesium.
Researchers confirm contagious blood cancer can jump between marine clam species, with evidence suggesting human activities may contribute to the spread. The discovery highlights the potential ecological threat posed by these diseases and emphasizes the need for further studies to monitor pathogens.
Researchers identified key mechanisms in Pseudomonas bacteria that protect potato crops from disease-causing bacteria. The study proposes a method for screening soil microbiome for therapeutic bacteria and boosting treatment.
A team of scientists found that a specific species of jumping spider lacks the ability to see red colors, despite having vibrant red and black coloration. The study suggests that these colors may be used for defensive camouflage rather than mate attraction.
A new review synthesizes past, present, and future uses of plant specimens as functional trait data sources. Herbarias are identified as a significant source of botanical diversity and have diversified scientific applications beyond taxonomy.
Current declines in mammal and bird species have reduced plants' ability to track climate change by 60% globally. Habitat connectivity and large-bodied animal recovery are crucial for supporting seed dispersal and plant resilience under climate change.
Researchers have discovered a new genus of tarantulas that live exclusively in bamboo stalks, found exclusively in high hill forests in northern Thailand. The new genus, Taksinus bambus, is unique due to its association with bamboo and can only be found at an elevation of about 1,000 m.
A new study found that Tasmanian devils have picky diets and only consume their favorite foods, unlike most other scavengers. The researchers tracked the eating habits of 71 devils using whisker samples and found that most devils choose to dine on specific foods.
A warmer Earth will see smaller fish species dominate ecosystems, mainly due to increased temperatures and decreased oxygen levels. This shift could have significant impacts on marine biodiversity and fisheries worldwide.
A recent study found that large wildfires and severe heat events worsen air pollution across the western United States, affecting 68% of the region's population in one day. The study revealed an increasing trend in days with high levels of both particulate matter and ozone, tied to rising temperatures and wildfires.
Researchers have discovered that certain microorganisms, such as Nitrosopumilus maritimus, can produce oxygen in the absence of sunlight, possibly deep below the ocean surface. These microbes play a crucial role in the nitrogen cycle and remove bioavailable nitrogen from the environment.
A recent study by North Carolina State University and Northern Michigan University found that eating human food reduces microbial diversity in black bears' guts. The researchers analyzed gut samples from 35 bears and found lower biodiversity in those with a diet rich in processed foods.
Researchers have discovered a natural nanostructure in birds that produces iridescent shimmer, finding an evolutionary tweak in feather nanostructure that has more than doubled the range of iridescent colors. This insight could inspire new materials that capture or manipulate light.
A study reveals that some butterfly and moth species have evolved transparent wing patches as a dual defence system to warn predators and hide from sight. The patches' unique structures enhance transparency, controlling how light passes through the wing.
Researchers have discovered a novel mechanism of viral transport by bacterial shuttles traveling along fungal hyphae. This process allows bacteria to benefit from taking viruses on their conquest of new habitats. The study also highlights the potential influence of viruses on nutrient and carbon cycles in soil ecosystems.
Despite over 200 restored wetlands in Denmark, botanical diversity remains low, with only 9.5 species per four square meters found in the studied areas. High nutrient input from agriculture continues to affect plant species dispersal and immigration, making it a significant barrier to increased biodiversity.
A recent study reveals that narwhals are highly affected by noise pollution from ships and seismic airgun pulses, triggering stress and altering their behavior. Researchers hope that better management of noise pollution will protect these unique Arctic animals.