Interactions among size-structured populations in a whole-lake experiment: size- and scale-dependent processes

Abstract

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.

Published in

Oikos
1999, volume: 87, number: 1, pages: 139-156
Publisher: WILEY-BLACKWELL

SLU Authors

• Byström, Pär

  • Umeå University

• Hjelm, Joakim

  • Umeå University

UKÄ Subject classification

Ecology
Zoology

Publication identifier

• DOI: https://doi.org/10.2307/3547005

Permanent link to this page (URI)

https://res.slu.se/id/publ/52316