Getting quantitative about consequences of cross-ecosystem resource subsidies on recipient consumers

Canadian Journal of Fisheries and Aquatic Sciences
By:  and 

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Abstract

Most studies of cross-ecosystem resource subsidies have demonstrated positive effects on recipient consumer populations, often with very large effect sizes. However, it is important to move beyond these initial addition–exclusion experiments to consider the quantitative consequences for populations across gradients in the rates and quality of resource inputs. In our introduction to this special issue, we describe at least four potential models that describe functional relationships between subsidy input rates and consumer responses, most of them asymptotic. Here we aim to advance our quantitative understanding of how subsidy inputs influence recipient consumers and their communities. In the papers following, fish were either the recipient consumers or the subsidy as carcasses of anadromous species. Advancing general, predictive models will enable us to further consider what other factors are potentially co-limiting (e.g., nutrients, other population interactions, physical habitat, etc.) and better integrate resource subsidies into consumer–resource, biophysical dynamics models.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Getting quantitative about consequences of cross-ecosystem resource subsidies on recipient consumers
Series title Canadian Journal of Fisheries and Aquatic Sciences
DOI 10.1139/cjfas-2016-0242
Volume 73
Issue 11
Year Published 2016
Language English
Publisher NRC Research Press
Contributing office(s) Coop Res Unit Seattle
Description 7 p.
First page 1609
Last page 1615