Distributions for Key Exposure Factors Controlling the Uptake of Xenobiotic Chemicals by Great Blue Herons (Ardea herodius) through Ingestion of Fish

Autor:	N. D. Wilson, Miranda Hope Henning, Timothy J. Iannuzzi, N. M. Shear Weinberg
Rok vydání:	1999
Předmět:	biology Range (biology) Ecology Health Toxicology and Mutagenesis Ecological Modeling Foraging biology.organism_classification Body weight Pollution Predation chemistry.chemical_compound chemistry Fish Ingestion Ardea Xenobiotic
Zdroj:	Human and Ecological Risk Assessment: An International Journal. 5:125-144
ISSN:	1549-7860 1080-7039
DOI:	10.1080/10807039991289653
Popis:	A variety of exposure factors ultimately control the uptake of xenobiotic chemicals by colonial piscivorous birds, such as herons and egrets. These factors, which include feeding rate for various food sources, feeding territory size, and body weight, are critical to the implementation of models commonly used to predict ecological risks. A critical evaluation of literature on avian behavior, physiology, and ecology was conducted in order to identify those variables that most strongly influence uptake of chemicals by herons and egrets. After developing a database of such exposure factors, we identified each factor's range, central tendency, and distribution. Sufficient information was available to allow the development of statistical distributions for body weight, fraction of diet from fish, prey length, distance to foraging site, and feeding territory size for great blue herons. The five distributions presented in this paper are intended to support probabilistic assessments of potential risks to great blue...
Databáze:	OpenAIRE
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