Great horned owl (Bubo virginianus) dietary exposure to PCDD/DF in the Tittabawassee River floodplain in Midland, Michigan, USA.

@article{Coefield2010GreatHO,
  title={Great horned owl (Bubo virginianus) dietary exposure to PCDD/DF in the Tittabawassee River floodplain in Midland, Michigan, USA.},
  author={Sarah Jean Coefield and Matthew J. Zwiernik and Timothy Brian Fredricks and Rita Marie Seston and Michael W Nadeau and Dustin L. Tazelaar and Jeremy N. Moore and Denise P. Kay and Shaun A. Roark and John P. Giesy},
  journal={Environmental toxicology and chemistry},
  year={2010},
  volume={29 10},
  pages={
          2350-62
        }
}
Soils and sediments in the floodplain of the Tittabawassee River downstream of Midland, Michigan, USA contain elevated concentrations of polychlorinated dibenzofurans (PCDF) and polychlorinated dibenzo-p-dioxins (PCDD). As a long-lived, resident top predator, the great horned owl (Bubo virginianus; GHO) has the potential to be exposed to bioaccumulative compounds such as PCDD/DF. Site-specific components of the GHO diet were collected along 115 km of the Tittabawassee, Pine, Chippewa, and… 
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Ecological risk assessment of great horned owls (Bubo virginianus) exposed to PCDD/DF in the Tittabawassee River floodplain in Midland, Michigan, USA.
TLDR
TheGHO population condition and productivity were both greater in the study area than in the reference area and were similar to other GHO populations, suggesting the GHO population in the Tittabawassee River floodplain is consistent with what would be expected for this area.
Dietary exposure of great blue heron (Ardea herodias) to PCDD/DFs in the Tittabawassee River floodplain, MI, USA.
Tissue-based risk assessment of great blue heron (Ardea herodias) exposed to PCDD/DF in the Tittabawassee River floodplain, Michigan, USA.
TLDR
Minimal risk of adverse population-level effects were predicted when exposures measured in tissues of GBH collected from rookeries within the TR were compared with appropriate TRVs.
AN ECOLOGICAL RISK ASSESSMENT OF FISH-EATING BIRDS EXPOSED TO POLYCHLORINATED DIBENZOFURANS AND DIBENZO-P-DIOXINS WITHIN THE TITTABAWASSEE RIVER FLOODPLAIN, MI, USA
AN ECOLOGICAL RISK ASSESSMENT OF FISH-EATING BIRDS EXPOSED TO POLYCHLORINATED DIBENZOFURANS AND DIBENZO-P-DIOXINS WITHIN THE TITTABAWASSEE RIVER FLOODPLAIN, MI, USA by Rita Marie Seston…
Multiple lines of evidence risk assessment of American robins exposed to polychlorinated dibenzofurans (PCDFS) and polychlorinated dibenzo-P-dioxins (PCDDS) in the Tittabawassee River floodplain, Midland, Michigan, USA.
TLDR
Exposure to PCDD/DFs in the Tittabawassee River floodplain would not likely result in adverse population-level effects to American robins, and the tissue-based assessment indicates minimal to no potential for adverse effects.
How do muskrats Ondatra zibethicus affect ecosystems? A review of evidence

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Ecological risk assessment of great horned owls (Bubo virginianus) exposed to PCDD/DF in the Tittabawassee River floodplain in Midland, Michigan, USA.
TLDR
TheGHO population condition and productivity were both greater in the study area than in the reference area and were similar to other GHO populations, suggesting the GHO population in the Tittabawassee River floodplain is consistent with what would be expected for this area.
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TLDR
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TLDR
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TLDR
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ABSTRACT Selection of receptors is a key element of ecological risk and natural resource damage assessments. The great horned owl (Bubo virginianus; GHO) has advantages as a tertiary terrestrial…
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Prey use by Great Horned Owls (Bubo virginianus) is documented widely in North America, but not in the vast northern Great Plains. During spring through early summer 1986-1987, I recorded 2,900 prey…
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TLDR
Three bioindicators, half-peak coefficient of geometric variation, ethoxyresorufin-O-dealkylase activity, and brain asymmetry were assessed relative to TCDD contamination, and hatching success was negatively associated with concentration of T CDD in eggs.
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