Bioenergetic food webs as a means of linking toxicological effects across scales of ecological organization
- Cite this article as:
- Carlisle, D.M. Journal of Aquatic Ecosystem Stress and Recovery (2000) 7: 155. doi:10.1023/A:1009975531047
- 89 Downloads
Although significant progress has been made in ourability to predict population-level consequences oftoxic effects on individuals, extending thispredictive ability to communities, functional guilds,and ecosystems will require more integration ofecological theory into environmental science. Bioenergetics and food webs have long been centralthemes in ecology and greatly expanded ourunderstanding of nature. Although numerousenergetic-based toxicological endpoints have beendeveloped, few have extended this framework beyond theindividual level. Most energetic endpoints includeindividual growth, and only occasionally is thisintegrated with population dynamics. However,population-level energetic analyses (e.g., secondaryproduction) integrate individual and populationprocesses, and provide two key parameters: consumptionand energy flow. Within a food web framework,estimates of consumption and energy flow throughpopulations facilitate linking population-levelcontaminant effects to ecosystem-level effects. Several examples are given to illustrate the utilityof this approach.