We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Exploring the effects of consumer-resource dynamics on contaminant bioaccumulation by aquatic herbivores
- Authors
Spencer, M.; Wang, W.-X.; Fisher, N. S.
- Abstract
We explore the consequences of consumer-resource interactions for bioaccumulation in two aquatic systems (cadmium accumulation in Dreissena polymorpha and polychlorinated biphenyl accumulation in calanoid copepods). We explicitly link the feeding and growth rates of consumers to the abundance of resources under a variety of assumptions about the nature of the interactions between them. The models are parameterized using field and laboratory data, and predictions are quantitatively compared with field-measured distributions of tissue concentrations. Different assumptions about consumer-resource interactions resultin different predicted distributions of tissue concentrations and illustrate the way these interactions constrain the bioaccumulation of contaminants. Linking feeding and growth rates to resource abundanceswill be important whenever these abundances change over time. User-friendly software will make these ideas accessible to nontheoreticians.
- Subjects
BIOTIC communities; POPULATION dynamics; ECOLOGICAL risk assessment; BIOACCUMULATION; SIMULATION methods &; models
- Publication
Environmental Toxicology & Chemistry, 1999, Vol 18, Issue 7, p1582
- ISSN
0730-7268
- Publication type
Article
- DOI
10.1897/1551-5028(1999)018<1582:ETEOCR>2.3.CO;2