Articles tagged with Ecology
In Chinese penduline tits, egg burial is primarily done to prevent eggs from rolling out of the nest in strong winds, a function that may have evolved in ancient species of the genus. This study found that 45% of eggs in experimental nests showed signs of being blown out, highlighting the importance of egg burial in these birds.
A new study found that current forest carbon sequestration models may be overestimating the ability of forests to store atmospheric carbon. The findings highlight the importance of considering processes other than photosynthesis for estimating carbon sequestration, such as temperature, water, and nutrient availability.
Hannah Williams, a movement ecologist, will conduct her research at the University of Konstanz's CASCB with a 1.6 million Euro grant. Her project aims to decipher animal movement patterns and develop an Optimal Movement Theory.
Researchers study the sea-surface microlayer, a biogeochemical reactor where organisms adapt to harsh conditions like UV radiation and fluctuating temperatures. The team aims to understand biological, chemical, and physical interactions in this thin layer, influencing global climate.
Researchers monitored mercury levels in artificial lakes to identify sources and factors affecting concentration. Most mercury originated from soil in catchment areas, with surface runoff contributing in shorter-residence time reservoirs.
A study led by Washington University in St. Louis found that nonlethal parasitic infections reduce herbivory rates and trigger trophic cascades impacting plant communities. The research used a mathematical model and global meta-analysis to highlight the ecological consequences of common parasitic infections in wild animals.
A new study analyzing 174 peer-reviewed studies on the effects of nature on human well-being found that participants were overwhelmingly white and from high-income countries. The research highlights a diversity problem in the field, which threatens its ability to make universal scientific claims.
A recent study found that tropical vegetation benefits less from elevated CO2 levels due to its surprising small effect on woody cover. Moisture availability and wildfire frequency were identified as the most important factors influencing woody cover change in tropical forest-savanna transitions.
Researchers propose an integrated conceptual framework for examining cold-survival strategies in animals, recognizing that species often combine multiple strategies to cope with freezing temperatures. This framework can help resolve discrepancies in Bergmann's rule and provide insights into animal responses to climate change.
A new study reveals that urban residents have a simplistic understanding of coastal ecosystems and are less likely to take pro-environmental actions. The research highlights an issue known as urbanized knowledge syndrome, which can harm natural ecosystems and undermine community resilience.
Researchers found that adopting another metabolism can have major competitive consequences, impacting a species' ability to compete in different environments. The study demonstrates the importance of considering acquired metabolisms in understanding community dynamics and ecosystem interactions.
The EU's CLAIM project successfully contributed to reducing plastic litter and microplastics in European seas through innovative technologies and methodological approaches. The project's findings have paved the way for policy change and increased awareness of the importance of plastic-free seas.
The Ecological Society of America will hold its 107th Annual Meeting in Montreal from August 14-19, 2022. This year's meeting combines resources and interests of the ESA and Canadian Society for Ecology and Evolution, focusing on theme "A Change Is Gonna Come" exploring global environmental and evolutionary change.
A new study finds that individual rabid dog behavior plays a key role in maintaining the persistence of canine rabies at low levels. Infected dogs act as super-spreaders, traveling long distances to introduce new lineages into neighboring communities and sparking local outbreaks.
A remote Irish community endured a millennium of climate change and ecological shifts without significant disruption, thanks to its adaptable social practices. The study, published in PLOS ONE, analyzed peat core data to infer environmental and human occupation changes over 1,000 years.
Research finds that bat box design and landscape placement significantly impact the energetic balance of endangered Indiana bats. A study by University of Illinois researchers tested five bat box designs and four landscape placements to determine their effects on bat metabolism, development, and survival.
A study has discovered that humans are disrupting a fundamental pattern in ecosystems, which dates back at least 66 million years. The U-shaped relationship between diet and size in modern land mammals has been found to span across multiple vertebrate groups, including birds, reptiles, and fish.
A recent study by Japanese researchers found that Staphylococcus argenteus, a bacterial organism causing food poisoning, was present in 13.9% of tested chicken samples. The study also revealed cross-contamination among retail foods and slaughterhouses, suggesting a potential link between the two.
A new study published in Animal Behaviour found that newborn African savannah elephants can keep up with their mothers' daily movements, contrary to previous assumptions. This remarkable ability allows the calves to benefit from protection against predators and integration into the herd's social structure.
A new UC Riverside study finds that the timing of rainfall is crucial for drought-stricken plants, with summer rains resulting in higher plant biomass. In contrast, winter rains have less impact on plant growth and may lead to negative effects.
A global decline in nitrogen availability poses long-term challenges for ecosystems, impacting plant growth, herbivore survival, and food webs. Research highlights monitoring and mitigation strategies to address this issue.
Researchers found varied diversity of gut microbiomes among brown bears at three national parks in Alaska, with Katmai showing the most diversity due to its diverse food sources. The study advances understanding of wildlife habitat, diet, and gut microbiome diversity.
A new study forecasts 1.4 million US street tree deaths from invasive insects by 2050, with the emerald ash borer responsible for most fatalities. Urban diversity can help mitigate this impact, and prioritizing management efforts like quarantining wood products may be necessary.
A new study has shown that increased levels of turbulence and mixing occurred every night in a coastal bay, similar to those caused by storms. The researchers attribute the signal to shoals of fish spawning anchovies, which mix water layers and impact temperature distribution, nutrients, and oxygen.
Researchers found that earthworms prefer soils with bioplastic particles and digest them differently than petroleum-derived plastics. The worms can break down bioplastics like polylactic acid into smaller fragments, which are then excreted slowly.
A recent study in Peru's tropical rainforests investigated cacao flower visitation, finding a wide variety of insects attracted to the small flowers. However, pollen transfer and fruit set remain poor, with only two percent of pollinated flowers setting fruit.
A global study found that certain microbial groups, including nitrifying archaea and bacteria, denitrifiers, and ammonifiers, are responsible for nitrous oxide emissions in peatlands. These microbes thrive in both dry and wet environments, suggesting a link to climate change.
A global team of scientists has identified a consistent pattern of hotter-drought conditions leading to forest mortality events. The study reveals that limiting Earth's warming will determine the survivability of many forests, with higher temperatures projected to double tree-killing droughts.
Researchers found that warmer and longer autumn conditions made it less likely for green-veined white butterflies to survive winter. The butterflies used more energy under these conditions, which can lead to lasting negative consequences, including reduced fitness.
A new study reveals that leafcutter ants employ complex strategies to maximize the growth of their fungal
A team of researchers discovered that a single gene, AOP2, plays a critical role in maintaining species diversity in an ecosystem. The study found that mutations at this gene can dramatically alter the structure and function of an ecosystem.
A single 'keystone' gene in Arabidopsis affects the extinction risk and community collapse of an experimental food web. The finding has significant implications for conserving genetic and species diversity.
Researchers found that livestock grazing had no negative impact on snow leopard distribution or density, and the species can coexist due to their separate ecological niches. The study suggests a more nuanced approach to conservation and land use, prioritizing the preservation of rocky mosaics.
A new study measures the happiness benefits of US city parks in the 25 largest cities, finding a powerful effect from urban nature on users. Park size and accessibility emerged as key predictors of happiness.
Researchers at the University of Texas at Austin have found a natural fungus that can kill off local populations of tawny crazy ants, with 62% of infected populations disappearing entirely. The fungus is specific to crazy ants and has no effect on native species, making it a promising biocontrol agent for protecting sensitive habitats.
A study analyzing 10 years of citizen science data on wildlife roadkill in Flanders found that some species are more prone to being killed by vehicles. The research used data from online platforms like Waarnemingen.be, which has collected over 90,000 roadkill records since 2008.
Researchers used camera traps to monitor interactions between Panama's epiphytic Zamia pseudoparasitica and animals, revealing that a nocturnal tree-dwelling mammal called northern olingos may be responsible for seed dispersal. The study sheds light on the plant's persistence in the forest canopy.
A study by researchers at the University of Plymouth reveals that energy-efficient broad spectrum lighting is reducing the efficacy of coastal species' camouflage. This can have significant impacts on visually guided ecological processes, with certain color variations being more vulnerable to detection.
Researchers found that urbanization increases hydrogen cyanide production in white clover as a defense mechanism against herbivores. The study, published in Science, reveals adaptive evolution due to urbanization is driving global-scale changes in plant species.
A massive volcanic eruption at the end of the Triassic period caused a global cooling effect, leading to the mass extinction. The event paved the way for the rise of dinosaurs as their natural predators went extinct.
Researchers found that Chagas trypanosomes change the bacterial community in predatory bugs' intestines, leading to a decrease in diversity and an increase in certain pathogenic bacteria. The study also identified four bacteria species crucial for bug survival, which could be used to develop defensive substances against the parasite.
A researcher has won an ERC grant to study the effect of land-use change on the interactions between plants and soil organisms. This project aims to improve habitat restoration by understanding how evolutionary changes in plant populations affect soil processes and their resilience to drought.
Researchers sampled 110,019 white clover plants from 160 cities to find that urban environments drive adaptation at a global scale. Urban clovers produce less of the antiherbivore defense molecule hydrogen cyanide compared to rural clovers.
Research from the University of Michigan predicts that pollen emissions could increase by up to 200% and allergy seasons could last 19 days longer by the end of this century. Climate change is expected to drive trees, grasses, and weeds to produce more pollen, leading to worse respiratory allergies.
A study published in eLife reveals that trade-offs between growth and survival enable marine microbes with different dispersal strategies to coexist on small particles in the ocean. The findings help explain the diversity of bacteria and microbes in oceans, shedding light on the factors supporting their existence.
A study has found that lead poisoning from gun ammunition has suppressed the populations of birds of prey across Europe, resulting in a loss of around 55,000 adult birds. The impact is particularly significant for species like eagles and Red Kites, which are long-lived and breed later in life.
An international research team analyzed the microbial community living on the carapaces of deep-sea squat lobsters, finding a diverse microbiome that likely provides benefits to both organisms. The microbes utilize energy-rich chemical compounds, while the squat lobsters may use them as a source of nutrients or have them remove toxic s...
A study reveals that new bird species arise in lowland habitats before moving higher into mountainous areas, where genetic differences accumulate. The research suggests that climate fluctuations, particularly during the Pleistocene era, contributed to the evolution of these high-altitude populations.
A team of researchers has found that plastic waste-derived porous materials can adsorb CO2 from flue gas, reducing plastic pollution and emissions. The study suggests that these materials could be used in industrial-scale applications, making them a promising alternative to conventional CO2 capture technologies.
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.