Scale-dependent effects of biodiversity and stability on ecosystem dynamics (Louise Flensborg, DTU) скачать в хорошем качестве

Scale-dependent effects of biodiversity and stability on ecosystem dynamics (Louise Flensborg, DTU)

Louise C. Flensborg, Marcel Montanyès, Antoni Vivó Pons, Fernanda Carolina Da Silva, Martin Lindegren Contact: [email protected] DTU Aqua, Henrik Dams Allé, Bygning 202, 2800 Kongens Lyngby, Denmark Global biodiversity loss is driving rapid shifts in ecosystem structure and function, posing major challenges for integrated ecosystem assessments (IEAs) and their ability to inform sustainable management. Anticipating these shifts requires a better understanding of ecosystem dynamics, the conditions that promote stability, and the mechanisms through which biodiversity confers resilience. Here, we investigate the temporal dynamics of marine ecosystems using high-resolution monitoring data on fish species composition, abundance, and traits across European Seas. By quantifying and comparing the direction and magnitude of community change at multiple spatial scales and levels of biological organization, we identify how stability emerges through different mechanisms. At larger spatial scales and higher organizational levels, stability primarily arises from statistical averaging across species pools, while at smaller spatial scales it also depends on functional complementarity mediated by species traits within groups. These findings demonstrate how biodiversity supports ecosystem stability through scale-dependent processes, highlighting both opportunities and challenges for IEAs in capturing and integrating such dynamics. By linking biodiversity mechanisms to ecosystem resilience, our work points to future directions for IEAs in advancing their capacity to anticipate and manage change in marine ecosystems. Key words: functional diversity, resilience, stability, scale, community ecology