3 Works

Disentangling temporal food web dynamics facilitates understanding of ecosystem functioning

Susanne Kortsch, Romain Frelat, Laurene Pecuchet, Pierre Olivier, Ivars Putnis, Erik Bonsdorff, Henn Ojaveer, Iveta Jurgensone, Solvita Strāķe, Gunta Rubene, Ēriks Krūze & Marie C. Nordström
Studying how food web structure and function varies through time represents an opportunity to better comprehend and anticipate ecosystem changes. Yet, temporal studies of highly resolved food web structure are scarce. With few exceptions, most temporal food web studies are either too simplified, preventing a detailed assessment of structural properties, or binary, missing the temporal dynamics of energy fluxes among species. Using long-term, multi-trophic biomass data coupled with highly resolved information on species feeding relationships,...

Identifying biotic drivers of population dynamics in a benthic–pelagic community

Louise Forsblom, Andreas Lindén, Jonna Engström-Öst, Maiju Lehtiniemi & Erik Bonsdorff
Benthic species and communities are linked to pelagic zooplankton through life-stages encompassing both benthic and pelagic habitats and through a mutual dependency on primary producers as a food source. Many zooplankton taxa contribute to the sedimentary system as benthic eggs. Our main aim was to investigate the nature of the population level biotic interactions between and within these two seemingly independent communities, both dependent on the pelagic primary production, while simultaneously accounting for environmental drivers...

Top-down effects override climate forcing on reproductive success in a declining sea duck

Markus Öst, Markus Öst, Aleksi Lehikoinen & Kim Jaatinen
Population performance is predicted to be more strongly influenced by detrimental species interactions such as predation under benign climatic conditions, and by climate forcing under harsh conditions, reflected in geographical gradients in biotic interaction strength. Less appreciated is the potential for site-specific changes in drivers with the advent of anthropogenic alteration of predator-prey relationships, including apex predator restoration and spread of invasive predators. Particularly interesting is the relative impact of climate and biotic interactions on...

Registration Year

  • 2021
    3

Resource Types

  • Dataset
    3

Affiliations

  • Åbo Akademi University
    3
  • Institute of Food Safety, Animal Health and Environment “BIOR”
    1
  • The Arctic University of Norway
    1
  • Finnish Environment Institute
    1
  • Natural Resources Institute Finland
    1
  • Latvian Institute of Aquatic Ecology
    1
  • Finnish Museum of Natural History
    1
  • University of Tartu
    1
  • Wageningen University & Research
    1
  • Novia University of Applied Sciences
    1