Articles tagged with Ecological Dynamics
A new biodiversity study shows that even seemingly healthy ecosystems with increasing species numbers may already be on the path to decline and loss of species. The study's findings suggest that species richness is not a reliable metric for monitoring ecosystems, as it can mask negative trends in species extinction.
A new study reveals faster growth rates of SAR11 bacteria than previously believed, with some groups dividing up to ten times faster. The research also shows that the timing of bacterial proliferation can influence their abundance and survival, challenging previous assumptions about marine microbial life.
Current measures to protect grasslands in the Qinghai-Tibetan Plateau are damaging the ecosystem and should be stopped. Small burrowing mammals, like the plateau pika and zokor, play crucial ecological roles in maintaining ecosystem health and biodiversity.
Coral cells use a molecule called LePin to mark friendly algae for ingestion, a mutually beneficial relationship that helps corals survive. This discovery could inform strategies to prevent coral bleaching and promote coral resilience.
A study in Washington state found that when wolves and cougars moved into an area, coyotes and bobcats shifted their movements into regions with higher levels of human activity. However, it was humans who finished off the smaller predators, with over half of the coyotes killed by people during the study period.
Researchers found that wolf spider species in Nebraska exhibited similar diets, with many eating the same types of prey. This suggests a complex food web where predators are not just competing for resources, but also engaging in cannibalism to regulate their populations and stabilize the ecosystem.
A study examines how viral infections may alter microbial processes and ecosystem functioning in response to climate change. The research reveals potential gaps in understanding the connections between viruses, warming, and ecosystem functioning.
Researchers found that participants with lower written health literacy experienced longer delays in initiating postoperative radiation therapy. The study controlled for demographic and clinical factors, highlighting the importance of health literacy in cancer care.
A study at Kyoto University has demonstrated the computational power of ecological networks, providing a new direction for rapidly developing AI technologies. The researchers developed two types of ecological reservoir computing that efficiently process information and can be utilized as a computational resource.
A study found that savanna species in Cerrado biome produce significantly more bark than forest species to protect against frequent fires. This adaptation enables them to survive and regenerate after burning, highlighting the importance of controlled fire management in these ecosystems.
A UH-led research team has developed a cost-effective method for removing harmful chemicals and heavy metals from coastal waters by utilizing native aquatic plants. The system, which includes floating aquatic plants and synthetic mats, can help restore ecological balance and keep communities healthy.
A recent study found that ocean warming triggers dinoRNAV infections in coral colonies, intensified in unhealthy colonies. This is the first empirical evidence of reef-wide dynamics of viruses infecting coral symbionts during heat waves.
A recent VIMS study uses a new computer model to simulate the impact of sea-level rise on coastal carbon storage. The research found that moderate rates of sea-level rise enhance plant productivity and carbon preservation, while rapid rise rates can lead to marsh collapse and decreased carbon storage.
The REST-COAST Summer Workshop brought together experts from around the world to discuss innovative research and management strategies for coastal restoration. Key findings included the financing of restoration projects, nature-based solutions, and coupled modelling systems for risk reduction.
The Cinereous Vulture has been reintroduced to Bulgaria after being extinct for 36 years. The successful re-introduction campaign, led by Green Balkans and other organizations, involved importing 72 birds from Spain and European zoos. The team recommends the aviary method and delayed release for establishing a new core population, and ...
Researchers discovered a new species of bacteria, Sulfurimonas pluma, living in cold, oxygen-saturated hydrothermal plumes globally. The microorganism uses hydrogen as an energy source, contrary to previous assumptions and expanding our understanding of its ecological role.
A new study reveals that moose can reduce carbon storage in clearcut sites equivalent to 60% of annual fossil fuel carbon emissions from a region. Moose consumption of biomass daily during summer represents 10% of what the Norwegian forest industry itself harvests, leading to increased carbon emissions.
A global comparison of soil transplantation projects reveals significant improvements in restoring vegetations with high conservation value. The treatment increased species count and diversity by an average of 40% compared to hay addition, particularly on loamy soils over larger areas.
A study by Oregon State University researchers found that synchronized fishing with dolphins in Brazil increases the number of fish caught and supports both species' survival. The cooperative relationship is specific to this population of dolphins and has been passed down through generations of fishermen.
Researchers from Chinese Academy of Sciences provide panoramic view of global forest patterns, highlighting pervasive effect of human impacts on protected areas and intact forest landscapes.
Establishing ecological corridors among western US national parks can enlarge mammal populations and allow species to shift geographic ranges in response to climate change. This could increase the long-term persistence time of mammal species by a factor of 4.3, compared to fragmented individual parks.
A team of researchers at the University of Nebraska-Lincoln has discovered that certain microorganisms, such as Halteria, can eat high numbers of chloroviruses, which are known to infect green algae. This finding suggests that virovory, a virus-only diet, can support physiological growth and even population growth in an organism.
An international team is creating an 'atlas of human impact' to understand how human occupation and land use have affected the Brazilian Atlantic Forest over hundreds of years. The research will inform future conservation efforts for this critically threatened tropical forest.
A study by McGill University researchers found that Northern Tree Shrews' body size increased with warmer climates, contradicting Bergmann's rule. The team analyzed museum specimens and historical climate data, revealing a reversal of the Island rule as well, highlighting the complex interaction between ecological factors.
Researchers used weather radar to track bird movements and found peak roosting stages shifting earlier due to warmer temperatures. This shift may lead to a shortened pre-migratory season, impacting birds' survival during migration.
A large-scale study found that high plant diversity in meadows and pastures supports numerous ecosystem services, including pollination, soil quality and cultural experiences. Various stakeholder groups, from local residents to the tourism industry, can benefit from increased biodiversity.
Eastern red bats, now the most commonly detected bat in Midwestern forests, have a significant impact on tree regeneration due to their appetite for insect-damaging bugs. Forest managers can benefit from considering these bats' landscape preferences, particularly ponds and smaller forest openings.
A new study reveals that global warming can lead to an exponential increase in heat injury accumulation for ectothermic organisms, with temperatures exceeding their tolerance level resulting in severe injuries. The rate of heat injury doubles for each degree the temperature rises.
A new study found that bats play a crucial role in protecting young tree seedlings from insect damage, with three times fewer bugs and five times more defoliation when bats are absent. The research reveals a mutually beneficial relationship between bats and oak trees, with bats serving as a key predator for insects that harm the trees.
A study led by the University of Zurich found that diverse Arctic vegetation affects the land surface energy budget. The researchers linked vegetation types to energy exchange data from 64 measuring stations, revealing a significant difference in heat flux between various vegetation types and glaciers/grasslands.
Researchers from University of Göttingen found that plant water stress, not termites, causes Namibia's fairy circles. The grasses within the circles died immediately after rainfall due to strong depletion of water, while surrounding grasses thrived.
Researchers at NTNU studied zebrafish brain activity while increasing temperature, finding that brains completely stopped responding to stimuli but then 'lit up' when temperatures reached extreme levels. Adding oxygen improved thermal tolerance and recovery rate in fish, suggesting a key role for glial cells in regulating oxygen supply.
Scientists have discovered several rare microorganisms, including Legendrea loyezae and Lacerus, which were previously unknown to science. The discovery expands our understanding of the tree of life and highlights the importance of microscopic life.
A Japanese research group discovered that the leaf area index of mixed-forests influences seasonal changes in the formation of a nocturnal cold-air pool at a small mountain basin. The study found that weakening of the nighttime temperature inversion occurred during leaf expansion, while strengthening occurred after leaf fall.
A study has found that pheasant meat can contain small fragments of toxic lead, which can be absorbed by the body and cause long-term harm. Researchers detected up to 10mg of tiny lead shards per pheasant, widely distributed within the bird's tissues.
A research team used game theory to analyze cooperation in networks and found that networks with a high level of cooperation can emerge if individuals take a clear-cut position against free riders. The study also showed that if contributors leave an environment too quickly, it leads to a lower level of cooperation.
A new study analyzing 72 lakes in four large Neotropical wetlands of Brazil reveals that human impacts on biodiversity compromise wetland multifunctionality. Strong associations between aquatic organism diversity and wetland functioning were found, highlighting the crucial role of species richness in driving ecosystem health.
Researchers investigate how foraging adaptations affect Arctic charr resilience to climate change. The team aims to develop a framework linking genetic and malleable components of feeding trait diversity to population demography, habitat, and eco-evolutionary potential.
A new study found that North American mammal communities have become more than twice as homogenous as they were 10,000 years ago, primarily due to early human hunting and farming activities. The accelerated homogenization is likely linked to the spate of large-mammal extinctions, which increased similarity among remaining species.
A FAU Harbor Branch study demonstrates hydrology impacts through high-resolution simulation model. Increased freshwater discharge contributes to intensified shelf water mixing that favors surface intrusion of Loop Current waters.
A global survey of biodiversity experts finds that more species are threatened with extinction than previously thought, with estimates suggesting 30% of species have been lost since 1500. The study identifies climate change, pollution, and land-use changes as key drivers of biodiversity loss.
A recent study by Xi'an Jiaotong-Liverpool University provides a method to help farmers and policymakers decide whether organic farming is beneficial for the environment. The researchers analyzed international studies to find a threshold where organic farming's biodiversity gain outweighs its land requirements.
Scientists analyzed nearly two decades of underwater recordings to find that the distinctive songs of Chagos pygmy blue whales have increased in frequency over time. This suggests that stocks of the sub-species may be on the rebound after being hunted to near-extinction in the 20th century.
Scientists analyzed over 30% of populations in an ecological database and found evidence of chaotic dynamics, contradicting previous findings. The research suggests that intrinsic limits exist to ecological forecasting and caution against equilibrium-based approaches for conservation and management, particularly for short-lived species.
Researchers observe fruit bat migration patterns mirroring seasonal landscapes in sub-Saharan Africa, suggesting a unique role in plant pollination. The study reveals the ecologically underestimated fruit bats transport plant seeds along the 'green wave', potentially affecting local ecosystems.
A new method called sensPIV has been developed to measure both flow and oxygen concentrations simultaneously at the smallest scales. This breakthrough allows researchers to study how corals generate flows, increasing oxygen transport, and has potential applications in life sciences, microfluidics, and medicine.
Researchers propose an ecological model to understand how individual responses to dietary fiber vary across gut microbiomes. The study found that specific bacteria grow in response to inulin and drive changes in gut health.
A new paper proposes unifying chemosensory modalities into a single sense, moving beyond the traditional differentiation between gustation and olfaction. The authors argue that this distinction is based on anthropomorphic biases and has hindered research efforts in understanding the evolution of chemosensation.
A 10-year study reveals that mechanical thinning reduces fire behavior metrics without increasing invasive grasses, while prescribed fire leads to more invasive grasses. Researchers hope their findings can inform fuel break construction efforts in the sagebrush steppe ecosystem.
The study found that freshwater pearl mussels significantly affected biofilm bacterial dynamics, particularly with increased Bacteroidales and Clostridiales abundance. The presence of mussels also alleviated nitrogen deficiencies by recycling nutrients.
Human activity on Hainan Island is causing changes in the body shapes and diets of tropical birds, resulting in biotic homogenisation. Despite efforts to protect biodiversity, the island's unique ecosystem is being affected by large-scale economic and land-use changes.
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.
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 study found that beetles in German forests shifted their diversity to Red-Ash trees when European Ash trees died due to drought stress. This suggests that non-native trees can provide opportunities for insects during times of climate change.
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.
A new Stanford University study reveals that communities near the West's wildland-urban interface are vulnerable to wildfires due to drought-sensitive ecosystems. The research identifies 18 'double-hazard' zones where plant-water sensitivity and atmospheric dryness create high wildfire risks.
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 studied Paradise, California's response to the 2018 Camp Fire. They found that community responses vary greatly due to distinct fire and demographic characteristics.
A new framework, iDIRECT, can effectively infer direct relationships in association networks, improving our understanding of complex systems. This approach has been successfully applied to gene regulatory networks in E. coli and microbial communities in response to climate warming.
Researchers at University of Washington documented a mass mortality event among Magellanic penguins in Punta Tombo, Argentina, due to extreme heat. The January 2019 heat wave killed at least 354 adult penguins and 90 chicks, with nearly three-quarters of the deceased being adults primarily due to dehydration.