Interactions among size-structured populations in a whole-lake experiment: size- and scale-dependent processes
Persson, Lennart; Byström, Pär; Wahlström, Eva; Andersson, Jens; Hjelm, Joakim
Individual level parameters (diet, growth) had a higher statistical power than population level parameters (abundance, biomass, mortality), and small-scale experiments successfully predicted a higher proportion (81%) of the individual level parameters. However, the lower success in predicting population level responses (38%) was directly connected to a failure to predict individual level parameters (large perch diet and growth). Our results suggest that the small spatial scale was the major limitation on the predictive ability of the small-scale experiments.
1999, Volume: 87, number: 1, pages: 139-156
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