Articles tagged with Ecology
A new global atlas reveals that up to 1.9 million km2 of the world's coastal waters are affected by artificial light at night, with significant impacts on marine organisms. The study uses a novel metric to determine the depth of light penetration and highlights the need for further research into the effects of ALAN pollution.
A study published in eLife reveals that Ruby-throated hummingbirds employ an energy-conserving strategy called torpor to build fat stores for their 5,000-kilometre migrations. The birds adapt this strategy to conserve energy during different periods of the annual cycle.
A new study suggests that melting glaciers in the Pacific mountains could produce over 6,000 kilometers of new salmon habitat by 2100. Researchers modeled glacial retreat under different climate change scenarios and found that 315 glaciers could create habitats with conditions suitable for salmon.
Researchers found that indigenous people in Gabon possess an astonishing 732 plant and fruit-eating animal interactions, exceeding academic literature. Local knowledge is invaluable for understanding ecological processes, particularly in remote areas.
Researchers discovered that forest mammals eavesdrop on monkey meals to access fruit dropped by messy eaters. This eavesdropping strategy is crucial for these animals' survival, particularly during periods when almond trees produce abundant food.
Current climate models underestimate species extinction rates by neglecting the complexities of ecosystems. Researchers used piñon pine data to model how climate affects tree populations and distribution, finding indirect effects that cannot be captured by climate-only models.
Tropical forests worldwide have disappeared rapidly due to deforestation. However, they can recover quickly on abandoned lands, with key forest functions rebounding within a decade. The study found that tropical forests can regain 78% of their old-growth values in just 20 years and near-total recovery occurs in less than 10 years.
Scientists found that seven genes associated with bright-light vision are absent in burrowing snakes, demonstrating extensive vision gene loss over millions of years. This challenges the hypothesis that all modern snakes evolved from extreme burrowers, suggesting a different evolutionary path for these subterranean snakes.
The Natural History Museum's digital collection has been downloaded over 28 billion times, contributing to advancements in food security, biodiversity conservation and medicine discovery. The museum's digitisation efforts are expected to have a tenfold return on investment, with benefits exceeding £2 billion over 30 years.
A study by VUB researcher Ari Ximenes uncovered factors that prevent mangroves from spreading in South America. Longshore drift and chilling temperatures are major factors hindering the southward expansion of mangrove species.
Researchers employed radiocarbon analysis to determine springtail diet, finding they rely on living plants for food. The study sheds light on the soil food web and its dynamics, with implications for terrestrial carbon cycling.
The loss of large-bodied grazers worldwide drastically altered fire regimes, increasing grassy ecosystem fire activity. This finding highlights the need to incorporate herbivore controls into fire models to better understand and predict global fire activity.
A new genetic analysis reveals that freshwater mussel larvae's mimicry of fish attracts host fish, allowing the mussels to coexist and drive species diversity. The study found that specialized host-infection behaviors evolved over time, leading to adaptive radiation among the mussel species.
Climate change has already altered 20% of the Earth's landscapes, and this trend is set to triple under business-as-usual emissions growth. The research found fundamental shifts in life zones, with boundaries shifting poleward and towards higher elevations, affecting tropical and temperate climates.
Researchers at Ruhr-University Bochum study coral reefs' reaction to climate change, discovering polyp bailout as a potential survival mechanism. The study reveals different species react with varying intensity to environmental stressors, and that individual polyps can survive and grow in new locations.
A new study found that female bushbabies experience sharper increases in glucocorticoid hormones than males, indicating they may be under more stress and have less wiggle room to survive in a changing environment.
The fossil elephant cranium, dated to 4.5 million years ago, showcases unique adaptations that likely enabled Loxodonta adaurora to dominate the landscape. The cranium's raised and compressed structure suggests a novel alignment of chewing muscles suited for efficient grass shearing.
Researchers from Wellesley College discovered that honey bees (Apis cerana) produce unique sounds, including 'antipredator pipes', to warn fellow bees of giant hornet threats. These signals result in increased bee activity and defense actions against the attackers.
Researchers have developed a database of parasite-host interactions among ancient ocean animals, shedding light on the evolution of biodiversity and the impact of parasitism on ecosystems. The study suggests that parasites can positively stabilize coastal ecosystems, making them more stable despite individual harm to hosts.
A study found that female zebra finches are choosy but flexible in their mating preferences, allowing them to avoid fitness costs. The researchers discovered that these 'wallflowers' can still produce successful fledglings by sneaking eggs into other birds' nests.
Reducing ammonia emissions is more cost-effective than focusing solely on nitrogen oxide reduction for mitigating PM2.5 air pollution. The abatement cost of ammonia emission is only 10% of that required to eliminate equivalent NOx emissions, making it a priority for global health and environmental concerns.
Researchers found that most coralline algae are negatively impacted by ocean acidification, with decreases in abundance and calcification rates. However, some species, like those in the family Mesophyllumaceae, appear to be more resilient to ocean acidification.
New research reveals that blue, fin and humpback whales consume an average of three times more food each year than scientists previously estimated. This increased consumption plays a crucial role in maintaining ocean health and productivity by recycling key nutrients.
A 26-year study on wild white-footed mice found that mice with physical impairments survived and thrived at a rate similar to their unimpaired counterparts. Mice with impairments had greater mass and larger home ranges, but no evidence of decreased fitness.
A new study reveals that consumption in G20 nations causes significant premature deaths worldwide, particularly among infants and elderly populations. The research estimates that the lifetime consumption of 28 people in G20 nations will result in one person's premature death.
A new analysis reveals that plankton-eating fish play a central role in driving local spikes of extreme biological productivity in tropical coral reefs. These 'sweet spots' concentrate abundant fish production, making them optimal for fishing. The study's findings hold significance for the future of tropical reef fisheries as coral ree...
Researchers led by NUS found that climate change is increasing fluvial sediment loads in the high mountains of Asia, with implications for hydropower, food, and environmental security. The study reveals that sediment fluxes could more than double by 2050 under an extreme climate change scenario.
Researchers found that Barbary ground squirrels in the Canary Islands rely on synchronized vigilance as their main defense mechanism against predators. They spend a significant amount of time watching each other and scanning their surroundings to detect threats.
Researchers found that in dry years, birds funnel into riparian environments due to increased greenness, leading to overcrowding and decreased bird populations. The study highlights the importance of understanding how birds respond to climate change for conservation purposes.
Researchers tracked black-tailed deer before, during, and after the Mendocino Complex Fire, finding that all 18 deer survived. Despite burned areas with no vegetation, most deer returned home within hours, potentially due to their loyalty to habitat. However, some deer's body condition declined as they expanded their range.
A new study suggests that human presence on the Falkland Islands dates back to around 3450 B.C.E., with evidence of fire activity and stone projectile points consistent with Indigenous South American technology. The research indicates that people likely visited the islands for short-term stays, leaving few cultural materials behind.
A new study shows toothed whales rapidly adjust their echolocation behaviour to track fast-moving prey, with response times comparable to visual predators. The findings provide insights into how these unique animals hunt and may aid conservation efforts.
Research reveals people's psychological strategies to cope with meat consumption and animal welfare, including triggers and restorative strategies. The study finds differences in meat consumption patterns across demographics and attitudes, with men more likely to disengage from animals.
Researchers found that warmer seawater temperatures decreased the nutritional content of giant kelp, a vital food source for many marine species. This decline could lead to population declines among consumers of kelp, including fish, invertebrates, and shorebirds, with far-reaching effects on entire ecosystems.
Researchers discovered that an insect digestive enzyme removes sugar from a plant defense compound, promoting larva growth on dandelion plants containing the compound. This process also leads to the larva avoiding plants with high concentrations of the compound.
Researchers at Duke University used mini ecosystems to test the effects of warming on bacteria-eating protists. They found that simple measurements of species traits could predict their response to temperature, shedding light on how climate change will alter microbial communities and influence the pace of global warming.
A new study reveals that early dinosaurs, such as Mussaurus patagonicus, likely formed complex herds with adults foraging and taking care of young. Fossils found in southern Patagonia indicate an age segregation, suggesting a larger community structure where adults shared in raising the whole community.
Researchers monitored the temporal niche partitioning of 73 cameras over six years in Malaysia's Sabah state. The study found that some species, like wild cats and civets, segregate their activities by time of day to avoid competition.
A new study reveals that a female elephant seal's age and experience are more important than ocean conditions in determining the condition of her pup at weaning. Higher population densities lead to smaller pups, but older females outperform younger ones.
A new study reveals that incorporating lateral groundwater processes into forest models can significantly impact predictions of tree survival in drought conditions. By accounting for the sideways flow of water through soil, scientists can better understand how riparian forests will respond to future climate change.
In a two-year study, UC Santa Barbara researchers found that herbivore activity around water sources in arid locations can either increase or decrease plant diversity, depending on environmental conditions. The findings suggest that plant communities exist along a spectrum based on environmental conditions.
Researchers found fish, reptiles, and mammals made up the jaguar's diet, with aquatic prey providing energy to burn or play. The high density of jaguars was attributed to abundant aquatic subsidies in the region.
A new study reveals that sea otter predation promotes eelgrass genetic diversity through physical disturbance. The longer otters are present in an area, the more genetically diverse the eelgrass communities become. This underappreciated process highlights the importance of considering indirect effects of predators on ecosystems.
After a mass extinction event 66 million years ago, early snakes evolved novel dietary adaptations and prey preferences, capitalizing on the ecological opportunity. This rapid diversification of snake diets was driven by the emergence of mammals and birds as prey species.
A study found that snakes rapidly diversified their diets following the K-Pg mass extinction event, incorporating birds, fish, and small mammals into their diet. This diversification was triggered by ecological opportunities presented by the extinction, with some lineages experiencing further bursts of adaptive evolution.
Wildlife trade is a pervasive issue affecting ecosystems, economies, and human well-being. IUWT can drive biodiversity loss, invasive species, and zoonotic diseases, highlighting the need for cooperation and sustainable management.
The article discusses community-based environmental monitoring, which allows local members to collect and analyze data independently. This approach has the potential to empower Indigenous rightsholders and stakeholders, and contribute to meeting contemporary sustainability challenges.
Researchers developed a quick test to identify beneficial bacteria species known to benefit coral, allowing for non-invasive assessment of coral health. The method enables rapid detection of specific bacterial species in seawater and coral samples, suggesting that the bacteria may be concentrated in coral.
A new study led by a University of Maine graduate student found that 50% fewer frogs died from vehicle collisions in spring 2020 compared to previous years. This decline was part of a broader reduction in animal road fatalities during the pandemic, similar to findings in other studies worldwide.
Research by Washington University in St. Louis explores the collision of island and mainland adaptive radiations in neotropical anoles, finding that island species can diversify greatly on the mainland. Contrary to traditional thinking, islands are not evolutionary dead ends but rather cauldrons of innovation and diversification.
Hülle cells in Aspergillus fungi produce chemicals that deter predators and aid fruiting structure development. These chemicals are crucial for the fungus' protection against hungry predators.
A new study has shown how climate change impacts the ecosystems of large lakes by varying their water layers' mixing through seasons. Mixing controls heat, oxygen, nutrients, and pollutants between layers, shaping ecosystems' adaptations.
A new study suggests that ground-dwelling and semi-arboreal mammals were better able to survive the mass extinction event, while tree-dwelling mammals were more likely to perish. Early primates may have maintained their arboreal habits through forested refugia or behavioral flexibility.
A recent study published in PLOS Biology found that science written in languages other than English may hold untapped information crucial to the conservation of global biodiversity. The research analyzed over 400,000 peer-reviewed papers and identified 1,234 studies providing scientific knowledge on saving species and ecosystems.
The COVID-19 pandemic has exacerbated plastic pollution, with global waste generation increasing by twice the amount in 2020 compared to 2019. To address this issue, researchers advocate for a transition to novel sustainable practices and technologies, including biodegradable plastics and efficient recycling processes.
A new study published in Coral Reefs confirms that soft corals Plexaura kükenthali and Plexaura homomalla are two separate species. The research found significant differences in morphology, genetics, reproduction, and symbiotic relationships between the two species.
Invasive fish and crustaceans significantly reduce lake organism abundance, degrading water quality. Researchers provide guidance on managing waterbodies to prevent ecosystem collapse.
Researchers found that stronger hurricanes trap and transport more birds due to their intense winds and thunderstorms. The study used radar data from 33 Atlantic hurricanes between 2011 and 2020, revealing a correlation between hurricane intensity and the presence of birds within the eye.
Research in Borneo suggests that forest patches adjacent to palm oil plantations provide critical habitats for generalist species, including the Asian water monitor lizard. These refuges help maintain biodiversity in oil palm-dominated landscapes.
A European map has been created to show the insulating effect of forests, which cool the air by 2.1°C in summer and keep temperatures 2°C higher than ambient air in winter. This finding highlights the crucial role of forests in regulating temperature and provides shelter for wildlife.