998 results match your criteria: "Institute of Natural Resources.[Affiliation]"

, , and : An Emerging Triad of Vector-Borne Co-Infections?

Pathogens

January 2025

ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France.

Canine leishmaniosis (CanL), caused by the protozoan and transmitted primarily by phlebotomine sand flies, poses significant challenges for zoonotic disease management [...

View Article and Find Full Text PDF

Increasing nitrogen (N) addition induces soil nutrient imbalances and is recognized as a major regulator of soil microbial communities. However, how soil bacterial abundance, diversity, and community composition respond to exogenous N addition in nutrient-poor and generally N-limited regions remains understudied. In this study, we investigated the effects of short-term exogenous N additions on soil bacterial communities using quantitative polymerase chain reaction (PCR) and Illumina Miseq sequencing in an in situ N addition field experiment.

View Article and Find Full Text PDF

Plasmin, the final product of fibrinolysis, is a broad-spectrum serine protease that degrades extracellular matrix (ECM) components, a function exploited by multiple pathogens for dissemination purposes. The trematode Fasciola hepatica is the leading cause of fasciolosis, a major disease of livestock and an emerging zoonosis in humans. Infection success depends on the ability of F.

View Article and Find Full Text PDF

Ibuprofen (IBP) is one of the most consumed drugs in the world. It is only partially removed in wastewater treatment plants (WWTPs), being present in effluent wastewater and sewage sludge, causing the widespread introduction of IBP as an emergent xenobiotic in different environmental compartments. This study describes the use of CSW11, recently described as an IBP degrader, through bioaugmentation processes for the removal of IBP from water under different conditions (additional carbon sources, various concentrations of glucose and IBP).

View Article and Find Full Text PDF

Kinship clustering within an ecologically diverse killer whale metapopulation.

Heredity (Edinb)

January 2025

Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo, Norway.

Metapopulation dynamics can be shaped by foraging ecology, and thus be sensitive to shifts in prey availability. Genotyping 204 North Atlantic killer whales at 1346 loci, we investigated whether spatio-temporal population structuring is linked to prey type and distribution. Using population-based methods (reflecting evolutionary means), we report a widespread metapopulation connected across ecological groups based upon nuclear genome SNPs, yet spatial structuring based upon mitogenome haplotypes.

View Article and Find Full Text PDF

Fatty acid carbon isotopes as tracers of trophic structure and contaminant biomagnification in Arctic marine food webs.

Sci Total Environ

January 2025

Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada. Electronic address:

Mercury (Hg) and persistent organic pollutant (POP) accumulation among species and biomagnification through food webs is typically assessed using stable isotopes of nitrogen (δN) and carbon (δC) in bulk (whole) tissues. Yet, bulk isotopic approaches have limitations, notably from the potential overlap of isotope values from different dietary sources and from spatial variation in source (baseline) signals. Here, we explore the potential of fatty acid carbon isotopes (FA δC) to (1) evaluate the trophic structure of a marine food web, (2) distinguish feeding patterns among four marine mammal consumers, (3) trace contaminant biomagnification through a food web, and (4) explain interspecific variation in contaminants among high-trophic position predators.

View Article and Find Full Text PDF

Livestock grazing and trampling have been shown to reduce arthropod populations. Among arthropods, defoliating lepidopterans are particularly important for their impact on trees, the keystone structures of agroforestry systems. This study investigates the impact of livestock on the community of defoliating lepidopterans in agroforestry systems.

View Article and Find Full Text PDF

The genus in the North Atlantic comprises of long lived deep-waters species that have been extensively fished upon, and many stocks are severely depleted across the Atlantic. This is particularly evident for the species . In recent papers, cryptic species have been indicated within this genus and molecular markers are therefore needed to provide identification for the species, including the cryptic species as a basis for advice regarding management and rebuilding of the stocks.

View Article and Find Full Text PDF

Lonicera caerulea genome reveals molecular mechanisms of freezing tolerance and anthocyanin biosynthesis.

J Adv Res

December 2024

Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China; College of Life Science, Northeast Forestry University, Harbin 150040, China. Electronic address:

Introduction: Lonicera caerulea L. (blue honeysuckle) is a noteworthy fleshy-fruited tree and a prominent medicinal plant, which possesses notable characteristics such as exceptional resilience to winter conditions and early maturation, and the richest source of functional anthocyanins, particularly cyanidin-3-glucoside. The molecular mechanisms responsible for its freezing tolerance and anthocyanin biosynthesis remain largely unknown.

View Article and Find Full Text PDF

Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, safety of navigation, and ocean exploration. Mapping the central Arctic Ocean is challenging due to the presence of perennial sea ice, which limits data collection to icebreakers, submarines, and drifting ice stations. The International Bathymetric Chart of the Arctic Ocean (IBCAO) was initiated in 1997 with the goal of updating the Arctic Ocean bathymetric portrayal.

View Article and Find Full Text PDF

Individual identity of alarm calls in wild-living Brandt's voles (Lasiopodomys brandtii).

Naturwissenschaften

December 2024

Department of Behaviour and Behavioural Ecology of Mammals, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia.

We investigated acoustic variation responsible for the individuality of alarm calls produced by 50 Brandt's voles Lasiopodomys brandtii derived from 50 different wild-living colonies. For the first time, we described the calling pattern of Brandt's voles, producing a long series of short alarm calls with short inter-call intervals. The alarm calls displayed four different contours of fundamental frequency but were nevertheless strongly individually distinct within a series of 50 successive alarm calls per caller (2500 analyzed alarm calls).

View Article and Find Full Text PDF

Influence of agarose in semi-IPN hydrogels for sustained Polymyxin B release.

Colloids Surf B Biointerfaces

March 2025

Laboratory of Bio & Nano Materials, Drug Delivery and Controlled Release, Department of Microbiology, Faculty of Health Sciences, University of Talca, Talca, Chile. Electronic address:

Hydrogels (HGs) are 3-D polymeric networks with high water content, making them appropriate for biomedical applications such as drug delivery systems. This study examines the impact of agarose in semi-interpenetrating polymer networks (Semi-IPNs) based on poly(acrylic acid) (p(AA)), N, N' Methylenebis(acrylamide) (MBA) and agarose (AGA) on the sustained release of Polymyxin B (PolB). Agarose incorporation improved the mechanical strength, swelling behavior and drug retention capacity of the HG.

View Article and Find Full Text PDF

The striped snakehead, Channa striata, is commercially and nutritionally important due to its medicinal properties, such as wound healing and antimicrobial abilities. This study investigated the reproductive biology of C. striata in relation to hydro-climatic changes using a fuzzy logic approach for long-term management in the wetland ecosystem (Gajner beel), Bangladesh.

View Article and Find Full Text PDF

Phyllospheric fungal diversity in decomposing larch leaf litter: a comparative study of epiphytic and endophytic fungi.

Front Microbiol

November 2024

Heilongjiang Huzhong National Nature Reserve, Huzhong, Greater Khingan Mountains Region, China.

Introduction: Epiphytic and endophytic fungi are primary decomposers of forest litter due to their complex species composition and metabolic functions. To clarify the community diversity of phyllospheric fungi and to explore nutrient loss and the role of fungal decomposition, we conducted a study on the decomposition of leaf litter during the 1-year decomposition of in the cold temperate zone.

Methods: Fungal diversity data were characterized via Single Molecule Sequencing (based on the Sequel II Sequencing System) and statistical analyses in R.

View Article and Find Full Text PDF

The ghost of selective inference in spatiotemporal trend analysis.

Sci Total Environ

January 2025

Institute of Natural Resources and Agrobiology of Seville (IRNAS), Spanish National Research Council (CSIC), Av. Reina Mercedes 10, 41012 Seville, Spain. Electronic address:

In spatiotemporal trend analysis, selective inference occurs when researchers are only interested in significant trends based on a fixed threshold (α, often 0.05), without considering the total number of statistical tests performed. Using simultaneous inference in gridded data involves thousands of trend tests, one for each pixel, leading to multiple testing or multiplicity problems.

View Article and Find Full Text PDF

The oceans play a pivotal role in mitigating climate change by sequestering approximately 25% of annually emitted carbon dioxide (CO). High-latitude oceans, especially the Arctic continental shelves, emerge as crucial CO sinks due to their cold, low saline, and highly productive ecosystems. However, these heterogeneous regions remain inadequately understood, hindering accurate assessments of their carbon dynamics.

View Article and Find Full Text PDF

The tusk of the male narwhal is a prolonged canine tooth, reaching a size of up to 3 m in length. The tusk erupts through the young narwhal's upper left lip and, over time, develops into an elongated structure composed of dentine growth layers with an outer coating of cementum. In this study, we utilized bomb radiocarbon (C) to estimate the ages of three narwhal tusks, which allowed us to validate the assumption that one growth layer is deposited annually in narwhal tusks.

View Article and Find Full Text PDF

Social and economic position and power shape everyone, including scientists and researchers. The way researchers do conservation science and the voices centered in the process are a result of researcher upbringing, experiences, access to resources, and values and are a manifestation of positionality. Positionality is a concept that can help one think about one's position and power in one's work.

View Article and Find Full Text PDF

One current challenge in sustainable agriculture is to redesign cropping systems to reduce the use and impacts of pesticides, and by doing so protect the environment, in particular groundwater, and human health. As a large range of systems could be explored and a wide number of pesticides used, field experiments cannot be carried out to study the sustainability of each of them. Thus, the objectives of this work were (1) to measure water flows and pesticide leaching in six contrasted low input cropping systems based on sunflower-wheat rotation, oilseed rape-wheat-barley rotation, and maize monoculture, experimented for three years in three different soil and climatic conditions, and (2) to assess and to compare the ability of three pesticide fate models (MACRO, PEARL, PRZM) to simulate the observed water flows and pesticide concentrations.

View Article and Find Full Text PDF

Atlantic mackerel population structure does not support genetically distinct spawning components.

Open Res Eur

January 2025

AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain.

Background: The Atlantic mackerel, (Linnaeus, 1758) is a commercially valuable migratory pelagic fish inhabiting the northern Atlantic Ocean and the Mediterranean Sea. Given its highly migratory behaviour for feeding and spawning, several studies have been conducted to assess differentiation among spawning components to better define management units, as well as to investigate possible adaptations to comprehend and predict recent range expansion northwards.

Methods: Here, the genome of was sequenced and annotated, as an increasing number of population genetic studies have proven the relevance of reference genomes to investigate genomic markers/regions potentially linked to differences at finer scale.

View Article and Find Full Text PDF

We reveal that lumpfish (Cyclopterus lumpus) frequently migrate over long distances between their summer feeding area in the open ocean and their spring spawning sites in coastal areas, through applying tag-recapture methodology. A total of 2750 C. lumpus were tagged in the Irminger Sea around Iceland and in the Norwegian Sea over 6 years, of which 17 C.

View Article and Find Full Text PDF
Article Synopsis
  • Microplastics and oil are growing contaminants in the Arctic, yet their combined effects on marine life, specifically copepods, remain under-researched.
  • A study focused on three copepod species revealed that exposure to oil alone significantly reduced fecal pellet production by 34-58%, while microplastics and dispersant did not enhance this negative effect.
  • Additionally, oil exposure led to delayed hatching and lower success rates in copepod eggs, particularly with C. glacialis experiencing a 50% decrease in hatching success when exposed to both oil and microplastics.
View Article and Find Full Text PDF
Article Synopsis
  • Research found significant differences in persistent organic pollutants (POPs) between polar bears and toothed whales in the Arctic, potentially linked to biological susceptibility and feeding patterns.
  • Analyzed samples from 2012 to 2021, killer whales had the highest concentrations of several POPs, while polar bears had lower amounts, especially of organochlorine pesticides.
  • The study highlighted that dietary habits largely influenced PCB concentrations, while biological factors played a larger role in explaining variations in organochlorine levels, indicating complex interactions affecting pollutant accumulation in these species.
View Article and Find Full Text PDF

Background: The natural polyphenolic compound known as Rosmarinic acid (RosA) can be found in various plants. Although its potential health benefits have been extensively studied, its effect on osteoarthritis (OA) progression and cartilage regeneration function still needs to be fully elucidated in OA animal models. This study elucidated the effect of RosA on OA progression and cartilage regeneration.

View Article and Find Full Text PDF