Environmental Contaminants in Bald Eagles in the Columbia River Estuary

Anthony, Robert G.; Garrett, Monte G.; Schuler, Carol A.

doi:10.2307/3808994

Cited by 71 publications

(83 citation statements)

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“…Ambrose et al (2000) reported that mercury concentrations in peregrine falcon (Falco peregrinus anatum) breeding in the Yukon River Basin were associated with lower nest success. Conversely, mercury concentrations in bald eagle eggs from the lower Columbia River Basin were not associated with lower productivity (Anthony et al 1993;Buck et al 2005).…”

Section: Dieldrin -Mink Dieldrin -Bald Eaglementioning

confidence: 98%

Environmental contaminants in freshwater fish and their risk to piscivorous wildlife based on a national monitoring program

Hinck

Schmitt

Chojnacki

et al. 2008

Environ Monit Assess

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Organochlorine chemical residues and elemental concentrations were measured in piscivorous and benthivorous fish at 111 sites from large U.S. river basins. Potential contaminant sources such as urban and agricultural runoff, industrial discharges, mine drainage, and irrigation varied among the sampling sites. Our objectives were to provide summary statistics for chemical contaminants and to determine if contaminant concentrations in the fish were a risk to wildlife that forage at these sites. Concentrations of dieldrin, total DDT, total PCBs, toxaphene, TCDD-EQ, cadmium, chromium, mercury, lead, selenium, and zinc exceeded toxicity thresholds to protect fish and piscivorous wildlife in samples from at least one site; most exceedences were for total PCBs, mercury, and zinc. Chemical concentrations in fish from the Mississippi River Basin exceeded the greatest number of toxicity thresholds. Screening level wildlife risk analysis models were developed for bald eagle and mink using no adverse effect levels (NOAELs), which were derived from adult dietary exposure or tissue concentration studies and based primarily on reproductive endpoints. No effect hazard concentrations (NEHC) were calculated by comparing the NOAEL to the food ingestion rate (dietary-based NOAEL) or biomagnification factor (tissue-based NOAEL) of each receptor. Piscivorous wildlife may be at risk from a contaminant if the measured concentration in fish exceeds the NEHC. Concentrations of most organochlorine residues and elemental contaminants represented no to low risk to bald eagle and mink at most sites. The risk associated with pentachloroanisole, aldrin, Dacthal, methoxychlor, mirex, and toxaphene was unknown because NOAELs for these contaminants were not available for bald eagle or mink. Risk differed among modeled species and sites. Our screening level analysis indicates that the greatest risk to piscivorous wildlife was from total DDT, total PCBs, TCDD-EQ, mercury, and selenium. Bald eagles were at greater risk to total DDT and total PCBs than mink, whereas risks of TCDD-EQ, mercury, and selenium were greater to mink than bald eagle.

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Section: Dieldrin -Mink Dieldrin -Bald Eaglementioning

confidence: 98%

Environmental contaminants in freshwater fish and their risk to piscivorous wildlife based on a national monitoring program

Hinck

Schmitt

Chojnacki

et al. 2008

Environ Monit Assess

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show abstract

“…Effects of human activity Anthony and Isaacs 1989 McGarigal et al 1991 Energetics and communal roosting Keister et al 1985 Environmental contaminants Frenzel and Anthony 1989Anthony et al 1993Buck et al 2005 Frenzel 1985 Food habits Isaacs and Anthony 1987Frenzel and Anthony 1989DellaSala et al 1989Watson et al 1991 Isaacs et al1993 Isaacs et al1996Marr et al 1995McShane et al 1998 Frenzel 1985 Habitat management Anderson 1971Anderson 1985Arnett et al 2001Isaacs et al 2005 Home range and habitat use Garrett et al 1993Frenzel 1988 Frenzel 1985 Midwinter population [1979][1980][1981][1982][1983] Opp 1979 Keister et al1987Frenzel and Anthony 1989DellaSala et al 1989Isaacs and Anthony 1987 Isaacs et al1993 Isaacs et al1996Tressler et al 1999 Fleischer 2005 1 The private category (n = 637) consisted of many different owners including individuals, local businesses, and multinational corporations (96%); and a Native American tribe, power companies, an irrigation district, and a conservation organization (4%).…”

Section: Acknowledgementsmentioning

confidence: 99%

Coming to Terms About Describing Golden Eagle Reproduction

Steenhof¹,

Kochert

McIntyre

et al. 2017

Journal of Raptor Research

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“…In light of the new evidence about the endocrinological effects of PCBs, dioxins, furans, DDT and its analogs, and a growing list of pesticides and other chemicals used in commerce, it is prudent that society make a concerted effort to reexamine the endocrinological effects of a) all pesticides in use, b) any new pesticides that come on the market, and c) those that have been banned and restricted but still persist in the environment. Many of the latter chemicals have proved to be very persistent and are still present in the U.S. environment at dangerous levels (34,35). In addition, their use has not been discontinued overseas, and in some instances they are being used in greater intensities overseas than ever used in the United States.…”

Section: Discussionmentioning

confidence: 99%

Pesticides: How Research Has Succeeded and Failed to Translate Science into Policy: Endocrinological Effects on Wildlife

Colborn¹

1995

Environmental Health Perspectives

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World Wildlife Fund, Washington, DC Toxicological research became institutionalized in the United States in response to society's concern about cancer and acute mortality. Driven by risk assessment, research focused on the need for data development and the standardization of testing for regulatory and management purposes in a reactive mode. Although the research community has provided evidence for over 40 years that a number of pesticides and industrial chemicals have disruptive effects on the endocrine system, little attention was given to the evidence when determining the health hazards of synthetic chemicals because of the fixation on cancer. However, recent findings concerning the effects of a number of widespread chemicals on the reproductive success and fertility of wildlife and humans has led to the call for a proactive approach using investigative research (forensic science). Suggestions are presented to modernize the research agenda of public health institutions to meet society's needs to address the problems of exposure to endocrine, nervous, and immune system disrupters. Environ Health Perspect 103(Suppl 6): 81-86 (1995)

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Environmental Contaminants in Bald Eagles in the Columbia River Estuary

Cited by 71 publications

References 0 publications

Environmental contaminants in freshwater fish and their risk to piscivorous wildlife based on a national monitoring program

Environmental contaminants in freshwater fish and their risk to piscivorous wildlife based on a national monitoring program

Coming to Terms About Describing Golden Eagle Reproduction

Pesticides: How Research Has Succeeded and Failed to Translate Science into Policy: Endocrinological Effects on Wildlife

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