1,618 results match your criteria: "∇Centre for Ecology and Hydrology[Affiliation]"

Modelling pollutants transport scenarios based on the X-Press Pearl disaster.

Mar Pollut Bull

December 2024

Plymouth Marine Laboratory, Prospect Place, Plymouth PL1 3DH, United Kingdom.

The MV X-Press Pearl accident near Sri Lanka in May 2021 released several pollutants into the ocean, including 1843.3 t of urea, raising concerns about the impact on the region. This study uses a coupled ocean (NEMO)-biogeochemistry (ERSEM) model to simulate urea dispersion under various scenarios.

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Contact with nature can contribute to health and wellbeing, but knowledge gaps persist regarding the environmental characteristics that promote these benefits. Understanding and maximising these benefits is particularly important in urban areas, where opportunities for such contact is limited. At the same time, we are facing climate and ecological crises which require policy and practice to support ecosystem functioning.

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Leaf respiratory carbon loss decreases independent of temperature as the night progresses. Detailed nighttime measurements needed to quantify cumulative respiratory carbon loss at night are challenging under both lab and field conditions. We provide a simple yet accurate approach to represent variation in nighttime temperature-independent leaf respiratory CO efflux in environments with both stable and fluctuating temperatures, which requires no detailed measurements throughout the night.

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Article Synopsis
  • Climate change often leads to habitat shifts for species towards the poles, but other factors also play a significant role in determining species distribution.
  • A study on European forest plants shows that they are more likely to shift westward rather than northward, with westward movements being 2.6 times more common.
  • These shifts are primarily driven by nitrogen deposition and recovery from past pollution, indicating that biodiversity changes are influenced by multiple environmental factors, not just climate change alone.
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Article Synopsis
  • Anthropogenic activities release around 2,000 metric tons of mercury annually, affecting remote ecosystems and leading to inconsistencies in reported emissions and atmospheric concentrations in the Northern Hemisphere.
  • Despite reported increases in mercury emissions over the past 30 years, data analysis shows a declining trend in atmospheric mercury levels, indicating that actual emissions must have decreased significantly, contradicting existing inventories.
  • By using statistical modeling of data from 51 monitoring stations, the study highlights a decline in mercury concentrations from 2005 to 2020, suggesting that reductions in local emissions, rather than reemissions of legacy mercury, are primarily responsible for these trends and raising questions about the reliability of current emission inventories.
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Bridging the Gap: Advancing Ecological Risk Assessment from Laboratory Predictions to Ecosystem Reality.

Environ Sci Technol

October 2024

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.

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Interpretation of river water quality data is strongly controlled by measurement time and frequency.

Sci Total Environ

December 2024

School of Humanities, Social Sciences and Law, University of Dundee, Nethergate, Dundee DD1 4HN, UK; UNESCO Centre for Water Law, Policy and Science, University of Dundee, Perth Road, Dundee DD1 4HN, UK.

Water quality monitoring at high temporal frequency provides a detailed picture of environmental stressors and ecosystem response, which is essential to protect and restore lake and river health. An effective monitoring network requires knowledge on optimal monitoring frequency and data variability. Here, high-frequency hydrochemical datasets (dissolved oxygen, pH, electrical conductivity, turbidity, water temperature, total reactive phosphorus, total phosphorus and nitrate) from six UK catchments were analysed to 1) understand the lowest measurement frequency needed to fully capture the variation in the datasets; and 2) investigate bias caused by sampling at different times of the day.

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We present a genome assembly from an individual female (6-spot burnet; Arthropoda; Insecta; Lepidoptera; Zygaenidae). The genome sequence is 365.9 megabases in span.

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The carbon sequestration potential of open-ocean pelagic ecosystems is vastly under-reported compared to coastal vegetation 'blue carbon' systems. Here we show that just a single pelagic harvested species, Antarctic krill, sequesters a similar amount of carbon through its sinking faecal pellets as marshes, mangroves and seagrass. Due to their massive population biomass, fast-sinking faecal pellets and the modest depths that pellets need to reach to achieve sequestration (mean is 381 m), Antarctic krill faecal pellets sequester 20 MtC per productive season (spring to early Autumn).

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A critical meta-analysis of predicted no effect concentrations for antimicrobial resistance selection in the environment.

Water Res

November 2024

European Centre for Environment and Human Health, University of Exeter Medical School, Faculty of Health and Life Sciences, Environment & Sustainability Institute, Penryn Campus, Cornwall TR10 9FE, United Kingdom.

Antimicrobial resistance (AMR) is one of the greatest threats to human health with a growing body of evidence demonstrating that selection for AMR can occur at environmental antimicrobial concentrations. Understanding the concentrations at which selection for resistance may occur is critical to help inform environmental risk assessments and highlight where mitigation strategies are required. A variety of experimental and data approaches have been used to determine these concentrations.

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Article Synopsis
  • Anthrax, caused by the bacterium Bacillus anthracis, is a significant zoonotic disease in livestock and humans, especially in Karnataka, India, necessitating a better understanding of its outbreaks.
  • The study aims to analyze the relationship between anthrax outbreaks from 1987-2016 and climatic factors, using advanced statistical methods to develop predictive models for public health and vaccination strategies.
  • Findings indicate that anthrax outbreaks are positively influenced by rainfall and wet days, with a long-term cycle of 6-8 years linked to Sea Surface Temperature anomalies, highlighting the importance of climate in prevention efforts.
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Increasing soil organic carbon (SOC) confers benefits to soil health, biodiversity, underpins carbon sequestration and ameliorates land degradation. One recommendation is to increase SOC such that the SOC to clay ratio (SOC/clay) exceeds 1/13, yet normalising SOC levels based on clay alone gives misleading indications of soil structure and the potential to store additional carbon. Building on work by Poeplau & Don (2023) to benchmark observed against predicted SOC, we advance an alternative indicator: the ratio between observed and "typical" SOC (O/T SOC) for pan-European application.

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Agrochemical inputs to managed oil palm plantations are a probable risk to ecosystems: Results from a screening level risk assessment.

Environ Pollut

November 2024

UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxon, OX10 8BB, United Kingdom. Electronic address:

Palm oil is a high value crop widely grown in the tropics. The management of palm oil is characterised by widespread agrochemical use. Here we report the results of a screening level risk assessment conducted from the available literature on the environmental concentration of agrochemicals in surface waters and soils in palm oil growing areas.

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Stem respiration constitutes a substantial proportion of autotrophic respiration in forested ecosystems, but its drivers across different spatial scales and land-use gradients remain poorly understood. This study quantifies and examines the impact of logging disturbance on stem CO efflux (EA) in Malaysian Borneo. EA was quantified at tree- and stand-level in nine 1-ha plots over a logging gradient from heavily logged to old-growth using the static chamber method.

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Marine and freshwater mammalian predators and fish samples, retrieved from environmental specimen banks (ESBs), natural history museum (NHMs) and other scientific collections, were analysed by LIFE APEX partners for a wide range of legacy and emerging contaminants (2545 in total). Network analysis was used to visualize the chemical occurrence data and reveal the predominant chemical mixtures for the freshwater and marine environments. For this purpose, a web tool was created to explore these chemical mixtures in predator-prey pairs.

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Fecal IgE Analyses Reveal a Role for Stratifying Peanut-Allergic Patients.

J Investig Allergol Clin Immunol

July 2024

Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.

Background And Objective: Peanut allergy (PA) is an IgE-mediated food allergy with variable clinical outcomes. Mild-to-severe symptoms affect various organs and, often, the gastrointestinal tract. The role of intestine-derived IgE antibodies in astrointestinal PA symptoms is poorly understood.

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The ecological impact of non-native species arises from their establishment in local assemblages. However, the rates of non-native spread in new regions and their determinants have not been comprehensively studied. Here, we combined global databases documenting the occurrence of non-native species and residence of non-native birds, mammals, and vascular plants at regional and local scales to describe how the likelihood of non-native occurrence and their proportion in local assemblages relate with their residence time and levels of human usage in different ecosystems.

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Optimal approaches for COVID-19 control: the use of vaccines and lockdowns across societal groups.

Front Epidemiol

July 2024

Mathematical Ecology Research Group, Department of Biology, University of Oxford, Oxford, United Kingdom.

Background: By March 2023, the COVID-19 illness had caused over 6.8 million deaths globally. Countries restricted disease spread through non-pharmaceutical interventions (NPIs; e.

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We describe the development, testing and specificity of a modified oligonucleotide probe for the specific detection of Mycobacterium avium subsp. paratuberculosis (MAP) in culture and in infected tissue using fluorescent in situ hybridisation and confocal microscopy. The detection of MAP in both animal and human tissue using our modified probe allows for a more rapid diagnosis of MAP infection compared to the more often applied detection methods of culture and PCR and has the potential for quantification of cellular abundance.

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Increased crossing of thermal stress thresholds of vegetation under global warming.

Glob Chang Biol

July 2024

Institute of Carbon Neutrality, Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China.

Temperature extremes exert a significant influence on terrestrial ecosystems, but the precise levels at which these extremes trigger adverse shifts in vegetation productivity have remained elusive. In this study, we have derived two critical thresholds, using standard deviations (SDs) of growing-season temperature and satellite-based vegetation productivity as key indicators. Our findings reveal that, on average, vegetation productivity experiences rapid suppression when confronted with temperature anomalies exceeding 1.

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Greenhouse whitefly (Trialeurodes vaporariorum) is a major global pest, causing direct damage to plants and transmitting viral plant diseases. Management of T. vaporariorum is problematic because of widespread pesticide resistance, and many greenhouse growers rely on biological control agents to regulate T.

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Potential drivers of changing ecological conditions in English and Welsh rivers since 1990.

Sci Total Environ

October 2024

Water Research Institute and School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK. Electronic address:

River invertebrate communities across Europe have been changing in response to variations in water quality over recent decades, but the underlying drivers are difficult to identify because of the complex stressors and environmental heterogeneity involved. Here, using data from ∼4000 locations across England and Wales, collected over 29 years, we use three approaches to help resolve the drivers of spatiotemporal variation in the face of this complexity: i) mapping changes in invertebrate richness and community composition; ii) structural equation modelling (SEM) to distinguish land cover, water quality and climatic influences; and iii) geographically weighted regression (GWR) to identify how the apparent relationships between invertebrate communities and abiotic variables change across the area. Mapping confirmed widespread increases in richness and the proportion of pollution-sensitive taxa across much of England and Wales.

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A comparison of the MPN and pour plate methods for estimating shellfish contamination by Escherichia coli.

J Appl Microbiol

July 2024

Centre for Applied Marine Sciences, School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom.

Aims: Shellfish production areas are classified for suitability for human consumption using counts of Escherichia coli in shellfish samples. Two alternative laboratory methods are approved in the European Union and UK for measuring E. coli in shellfish samples; the most probable number (MPN) and pour plate methods.

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