Resultados de investigación

Fig4+5_Datasets.zip and Fig4+5_Timecourses.zip folders contain the datasets and the individual timecourses, respectively, for the conditions addressed in Main Figures 4 and 5: - Bare DNA - DNA + wild-type CtIP - DNA + lambda CtIP - DNA + R100W CtIP - DNA + deltaC608 CtIP - DNA + deltaC782 CtIP - DNA + deltaN500 CtIP - DNA + deltaN790 CtIP Fig6.zip and Fig7.zip folders contain confocal data corresponding to Main Figures 6 and 7, respectively: - Main Figure 6 – diffusion traces of AF-CtIP and confocal scans - Main Figure 7 – confocal scans with looped-DNA and confocal kymographs of co-diffusion experiments Supp_FigS3_Datasets.zip folder contains the datasets for the conditions addressed in Supplementary Figure S3: - DNA + 0 nM WT-CtIP - DNA + 0.4 nM WT-CtIP - DNA + 4 nM WT-CtIP - DNA + 10 nM WT-CtIP - DNA + 40 nM WT-CtIP Supp_FigS6_Datasets.zip and Supp_FigS6_Timecourses.zip folders contain the datasets and the individual timecourses, respectively, for the conditions addressed in Supplementary Figure S6: - fork-end branched DNA (forked) + wild-type CtIP - fork-end branched DNA (forked) + lambda CtIP Supp_FigS7.zip and Supp_FigS8.zip folders contain the photon counts for confocal data addressed in Supplementary Figure S7 and Supplementary Figure S8: - Supplementary Figure S7 – diffusion traces of AF-CtIP - Supplementary Figure S8 – co-diffusion experiments with labeled forked DNA fragments and CtIP, El dataset se puede consultar y descargar en https://doi.org/10.5281/zenodo.11371887, Peer reviewed

Images from OBSEA underwater cameras labeled with marine species to train AI-based Object Detection algorithms, European Commission: AI-based image data analysis tools for aquatic research, 101058625, This work contributes to the Institut de Ciències del Mar "Severo Ochoa Centre of Excellence" accreditation CEX2024-001494-S funded by AEI 10.13039/501100011033 of the Spanish Ministry of Science and Innovation, Peer reviewed

Rarely do we observe competitive exclusion within plant communities, even though plants compete for a limited pool of resources. Thus, our understanding of the mechanisms sustaining plant biodiversity might be limited. In this study, we explore two common ecological strategies, species sorting and character displacement, that promote coexistence by reducing competition. We assess the degree to which woody plants may implement these two strategies to lower belowground competition for nutrients which occurs via nutritional (mostly mycorrhizal) mutualisms. First, we compile data on plant traits and the mycorrhizal association state of woody angiosperms using a global inventory of indigenous flora. Our analysis reveals that species in locations with high mycorrhizal diversity exhibit distinct mean values in leaf area and wood density based on their mycorrhizal type, indicating species sorting. Second, we reanalyze a large dataset on leaf area to demonstrate that in areas with high mycorrhizal diversity, trees maintain divergent leaf area values, showcasing character displacement. Character displacement among plants is considered rare, making our observation significant. In summary, our study uncovers a rare occurrence of character displacement and identifies a common mechanism employed by plants to alleviate competition, shedding light on the complexities of plant coexistence in diverse ecosystems., National Natural Science Foundation of China: C0311 - 32371721, Peer reviewed

[Aim] Warm deserts are characterized by water shortages and high-temperature extremes. A common adaptive strategy in such environments is the maximization of photosynthetic capacity, which allows plants to achieve positive carbon budgets by taking advantage of short periods of water availability and non-inhibitory temperatures. Assuming that photosynthetic capacity is approximated by leaf N concentration, we tested the hypothesis that environmental aridity is related to an elevated leaf nitrogen content., [Location] 53 locations in the transitional zone spanning the Mediterranean and the Sahara Desert in Morocco. The mean maximal temperature (Tmax) within the area varied between 35.7 and 43.5 °C, and the mean annual precipitation (MAP) was between 12 and 246 mm., [Taxon] 225 vascular species representative of local vegetation, [Methods] Leaf samples were collected along a regional aridity gradient and preserved in herbarium presses. The leaf mass per area (LMA) and N concentrations expressed on leaf mass (Nmass) and area (Narea) basis were determined. We also obtained LMA and Nmass values for 6711 species from a worldwide database for comparative analysis., [Results] Significant increases in mean LMA, Nmass, and Narea accompanied the increase in Tmax and the decrease in MAP in woody species and in non-graminoid herbs, but not in graminoids. Considering that the climate in our sampling area as a whole was arid, we compared the Nmass values of Moroccan plants with those from a worldwide database and found that at a common LMA, the Moroccan plants showed on average elevated Nmass relative to the global values., [Main conclusions] These two lines of evidence: regional gradient and global comparison confirm that hot deserts select for high leaf N content. This result predicts the direction of natural selection that will accompany future climate warming., Ministry of Science and Higher Education: NN 304 066537, Peer reviewed

[Aim] This study uses a novel modeling approach to understand global trophic structure transformations under 21st-century climate changes. The goal is to project and understand the impacts of climate change on trophic dynamics, guiding future research and conservation efforts., [Location] 14,520 terrestrial grid cells of 1° x 1° globally., [Taxon] Trophic structures were assessed for 15,265 species, including 9,993 non-marine birds and 5,272 terrestrial mammals, across 9 predefined trophic guilds., [Methods] A spatially explicit community trophic structure model, based on an extreme gradient boosting algorithm (Xgboost), was used. The model was trained with 1961-1990 climatic data and projected changes according to three Shared Socioeconomic Pathways: SSP2-45, SSP3-70, and SSP5-85., [Results] The Xgboost model showed high predictive accuracy (86%, kappa=0.91). Projections indicated many global regions are transitioning in their trophic structures due to climate changes from 1990 to 2018, with decreases in species carrying capacity in 5.5% of cells and increases in 9.8%. Predictions for mid- and late-21st century under climate scenarios suggest significant reorganization, with notable impacts in regions such as the Amazon Basin, Central Africa, and Southeast Asia. Under SSP5-85, 17.1% of cells may face reductions in carrying capacity, while 41.1% could see increases, affecting thousands of species., [Main conclusions] Climate change is profoundly reorganizing global trophic communities, with significant shifts in species carrying capacity across different guilds. Tropical regions and high northern latitudes are most affected, with some species facing collapses and others finding new opportunities. These changes highlight the need to integrate community trophic structure models into biodiversity conservation strategies, offering a comprehensive view of climate change impacts on trophic networks., Ministerio de Ciencia, Innovación y Universidades de España: PGC2018-099363-B-I00, Proyectos de I+D de GENERACIÓN DE CONOCIMIENTO, Peer reviewed

Geographical coverage: Mediterranean Sea Grid and horizontal spatial resolution: Evenly spaced 1/24º grid Vertical levels: Only surface level Temporal resolution: Daily (April 2016 - July 2022) Variables: lon (1D); lat (1D); time (1D); ftlv (2D), This product provides the Finite-Time Lagrangian Vorticity derived from surface geostrophic velocities result from the application of the 4DVARNET algorithm (Fablet et al., 2021; resolution of the dynamical model used for the learning/training (eNATL60-BLB02) downgraded to 1/20°) to altimetry L3-data (https://doi.org/10.5281/zenodo.10912777) at a resolution of 1/24° over the Mediterranean Sea and for the period from April 2016 to July 2022. Algorithm used to compute Finite-Time Lagrangian Vorticity was developed by I. Hernandez-Carrasco (Hernandez-Carrasco et al, 2011, Ocean modelling. https://doi.org/10.1016/j.ocemod.2010.12.006)., European Space Agency: 4DMED-SEA” Project ESA Contract No. 4000141547/23/I-DT, Peer reviewed

El dataset se puede consultar y descargar en https://doi.org/10.5281/zenodo.13752897, Geographical coverage: Mediterranean Sea Grid and horizontal spatial resolution: Evenly spaced 1/72º grid Vertical levels: Only surface level Temporal resolution: Daily (April 2016 - July 2022) Variables: lon (1D); lat (1D); time (1D); ftlv (2D), This product provides the Finite-Time Lagrangian Vorticity derived from surface geostrophic velocities result from the application of the 4DVARNET algorithm (Fablet et al., 2021; resolution of the dynamical model used for the learning/training (eNATL60-BLB02) downgraded to 1/8°) to altimetry L3-data (https://doi.org/10.5281/zenodo.10908416) at a resolution of 1/72° over the Mediterranean Sea and for the period from April 2016 to July 2022. Algorithm used to compute Finite-Time Lagrangian Vorticity was developed by I. Hernandez-Carrasco (Hernandez-Carrasco et al, 2011, Ocean modelling. https://doi.org/10.1016/j.ocemod.2010.12.006)., European Space Agency: 4DMED-SEA” Project ESA Contract No. 4000141547/23/I-DT, Peer reviewed

It includes: - Raw values from the stable isotopes analysis performed in swordfish white muscle (file: Fernandez-Corredor et al 2025 JAE_Stable Isotopes Data.xlsx) - Outputs from the mixing models (file: Fernandez-Corredor et al 2025 JAE_MixSIAR results.xlsx) - Environmental layers from BioOracle v3 (Assis et al. 2024) (fFernandez-Corredor et al 2025 JAE_spatial.zip) - Cummulative fishing effort raster calculated from Global Fishing Watch data (Kroodsma et al. 2018) (Fernandez-Corredor et al 2025 JAE_spatial.zip) - A shapefile with the grid used for predictions and projections (Fernandez-Corredor et al 2025 JAE_spatial.zip) - Rmarkdowns with the code used in the analysis (Fernandez-Corredor et al 2025 JAE_code.zip), This dataset contains the data and code used in Fernández-Corredor et al. 2025. Environmental and human factors shape the trophic ecology of a widespread marine predator. Journal of Animal Ecology, This work also acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2024-001494-S) to the Institute of Marine Science (ICM-CSIC), Peer reviewed

This repository provides the raw data necessary to reproduce the analyses presented in the paper "Shining Light on Dark Matter: Advancing Functional Analysis of Obsidian Tools with Confocal Scanning Microscopy" by Pichon et al., Peer reviewed

Tree diversity can promote both predator abundance and diversity. However, whether this translates into increased predation and top-down control of herbivores across predator taxonomic groups and contrasting environmental conditions remains unresolved. We used a global network of tree diversity experiments (www.treedivnet.ugent.be; TreeDivNet) spread across three continents and three biomes to test the effects of tree species richness on predation across varying climatic conditions of temperature and precipitation. We recorded bird and arthropod predation attempts on plasticine caterpillars in monocultures and tree species mixtures. Both tree species richness and temperature increased predation by birds, but not by arthropods. Furthermore, the effects of tree species richness on predation were consistent across the studied climatic gradient. Our findings provide evidence that tree diversity strengthens top-down control of insect herbivores by birds, underscoring the need of implementing conservation strategies that safeguard tree diversity to sustain ecosystem services provided by natural enemies in forests., Peer reviewed