103 ecotox - OUTLINE ECOTOXICOLOGY 1 WHAT IS THE PROBLEM 2...

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OUTLINE: ECOTOXICOLOGY 1. WHAT IS THE PROBLEM? 2. HEAVY METALS. 3. BIOACCUMULATION. 4. MEASURES OF TOXICITY. 5. NEWEST CONTROVERSIES. Suggested Reading: Lanoo, M. 2005. Amphibian declines: conservation status of US species. Univ. California Press.
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STUDENTS IN MIDWEST STARTED FINDING FROGS WITH GENETIC & DEVELOPMENTAL PROBLEMS IN 1990s.
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DEFINITION 1. TOXIN = _________________ 2. TOXICOLOGY = _______________ ________________________________. (TRADITIONALLY FOCUSED ON EFFECTS ON HUMANS) 3. ECOTOXICOLOGY = _____________ ________________________________ ________________________________.
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EXAMPLE: HEAVY METALS ONE CLASS OF TOXIC SUBSTANCES – __________________________________________, ETC. ALL ARE TOXINS THAT ARE OF PARTICULAR CONCERN IN ECOTOX STUDIES. OTHER EXAMPLES: ______________________, ETC. RADIOACTIVE SUBSTANCES USUALLY CONSIDERED SEPARATELY.
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BIOACCUMULATION DEFINITION: ______ _________________ _________________. FIRST EVIDENCE OF PROBLEM MAY APPEAR WITH ____ ____________, e.g., BALD EAGLES, OSPREYS
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BIOACCUMULATION EXAMPLE I STUDY IN ENGLAND MONITORED PRESENCE OF HEAVY METALS, ETC. USING ROAD KILLS, 1965-1990. FOREST HAWKS THAT MOSTLY EAT BIRDS (ACCIPITERS) SIMILAR STUDY WITH HERONS SHOWED
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