4 documents found, page 1 of 1
Consistent predator-prey biomass scaling in complex food webs
Perkins, Daniel M.; Hatton, Ian A.; Gauzens, Benoit; Barnes, Andrew D.; Ott, David; Rosenbaum, Benjamin; Vinagre, Catarina; Brose, UlrichThe ratio of predator-to-prey biomass is a key element in food webs. Here, the authors report a unified analysis of predator-prey biomass scaling in complex food webs, finding general patterns of sub-linear scaling across ecosystems and levels of organization. The ratio of predator-to-prey biomass is a key element of trophic structure that is typically investigated from a food chain perspective, ignoring channe...
Global data on earthworm abundance, biomass, diversity and corresponding enviro...
Phillips, Helen R. P.; Bach, Elizabeth M; Bartz, M. L. C.; Bennett, Joanne M.; Beugnon, Rémy; Briones, Maria J. I.; Brown, George G.; Ferlian, OlgaEarthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provided directly by authors, were collated with information on site l...
Effects of nonnative species on the stability of riverine fish communities
Eros, Tibor; Filipe, Ana Filipa; Ruhi, Albert; Pablo, A.; Tedesco, P.A.; Brose, Ulrich; Fortin, Marie-JoséeDespite the increasing ubiquity of biological invasions worldwide, little is known about the scale-dependent effects of nonnative species on real-world ecological dynamics. Here, using an extensive time series dataset of riverine fish communities across different biogeographic regions of the world, we assessed the effects of nonnative species on the temporal variability and synchrony in abundance at different o...
Biodiversity of intertidal food webs in response to warming across latitudes
Gauzens, Benoit; Rall, Bjoern C.; Mendonca, Vanessa; Vinagre, Catarina; Brose, UlrichGlobal warming will affect food-web structure and species persistence, and real world data is needed for better prediction. Combining species counts and temperature data from rock pools with dynamic modelling predicts biodiversity increases in arctic to temperate regions and declines in the tropics. Global warming threatens community stability and biodiversity around the globe. Knowledge of the mechanisms under...