Research Topics
| Craig E HebertSummaryAffiliation: Environment Canada Country: Canada Publications
| Collaborators
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Detail Information
Publications
Metals and polycyclic aromatic hydrocarbons in colonial waterbird eggs from Lake Athabasca and the Peace-Athabasca Delta, CanadaCraig E Hebert
Environment Canada, National Wildlife Research Centre, Ottawa, Ontario, Canada
Environ Toxicol Chem 30:1178-83. 2011..More research is required to evaluate temporal trends in levels of environmental contaminants and to identify sources...
Stable nitrogen isotopes in waterfowl feathers reflect agricultural land use in western CanadaC E Hebert
Environment Canada, Canadian Wildlife Service, National Wildlife Research Centre, Quebec
Environ Sci Technol 35:3482-7. 2001....- Assessing temporal trends in contaminants from long-term avian monitoring programs: the influence of sampling frequencyCraig E Hebert
Canadian Wildlife Service, National Wildlife Research Centre, 100 Gamelin Blvd, Hull QC, Canada K1A 0H3
Ecotoxicology 12:141-51. 2003..The design of monitoring programs must balance costs and data quality. Programs should ensure that the data collected are adequate to address critical questions... - Ecological tracers can quantify food web structure and changeCraig E Hebert
Environment Canada, Canadian Wildlife Service, National Wildlife Research Centre, 1125 Colonel By Drive, Ottawa, Ontario, K1A 0H3, Canada
Environ Sci Technol 40:5618-23. 2006..The use of these tracers in concert led to a better understanding of routes of energy flow and contaminant transfer in food webs and how these pathways may be affected by ecosystem change... - Adjusting for temporal change in trophic position results in reduced rates of contaminant declineCraig E Hebert
Environment Canada, Canadian Wildlife Service, National Wildlife Research Centre, 1125 Colonel By Drive, Ottawa, Ontario, K1A 0H3, Canada
Environ Sci Technol 40:5624-8. 2006..Here, we outline a method to adjust for temporal changes in indicator species trophic position and discuss how these adjustments affect the interpretation of contaminant temporal trend monitoring data... - Biochemical tracers reveal intra-specific differences in the food webs utilized by individual seabirdsCraig E Hebert
Environment Canada, Wildlife and Landscape Science Directorate, National Wildlife Research Centre, Ottawa, ON, Canada
Oecologia 160:15-23. 2009..g., herring gulls, are common in food webs. By characterizing ecological tracer profiles in such species we can better understand spatial, temporal, and individual differences in pathways of contaminant, energy, and nutrient flow... - Restoring piscivorous fish populations in the Laurentian Great Lakes causes seabird dietary changeCraig E Hebert
Environment Canada, National Wildlife Research Centre, Ottawa, Ontario K1A OH3, Canada
Ecology 89:891-7. 2008..In an environment characterized by increasingly limited pelagic fish resources, they are being offered a Hobsonian choice: switch to less nutritious terrestrial prey or go hungry... - Sulfur isotopes link overwinter habitat use and breeding condition in Double-crested CormorantsCraig E Hebert
Environment Canada, National Wildlife Research Centre, 1125 Colonel By Drive, Ottawa, Ontario K1A 0H3, Canada
Ecol Appl 18:561-7. 2008..These results underscore that factors throughout the Mississippi flyway are likely acting together to regulate cormorant populations... - Flame retardants in eggs of four gull species (Laridae) from breeding sites spanning Atlantic to Pacific CanadaDa Chen
Ecotoxicology and Wildlife Health Division, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON K1A 0H3, Canada
Environ Pollut 168:1-9. 2012..g., PBDE congener compositions) for individual gulls from the same colony. Eggs from gulls breeding near metropolitan regions of higher human densities showed greater PBDE burdens than from other ecosystems... - Trophic structure and mercury distribution in a Gulf of St. Lawrence (Canada) food web using stable isotope analysisRaphael A Lavoie
Biology Department, University of Ottawa, 30 Marie Curie, Ottawa, ON, Canada K1N 6N5
Sci Total Environ 408:5529-39. 2010..This suggests that Hg would be readily bioavailable to organisms at the base of the benthic food chain, but trophic transfer would be more efficient in each trophic level of pelagic and benthopelagic food chains... - Reconcilable differences: the use of reference material to reduce methodological artifacts in the reporting of organochlorine pesticides and polychlorinated biphenylsShane R de Solla
Canadian Wildlife Service, Environment Canada, 867 Lakeshore Road, Box 5050, Burlington, Ontario L7R4A6, Canada
Environ Toxicol Chem 29:19-26. 2010..Assessments of the compatibility of analytical methodologies should be made using an appropriate RM... - Perfluoroalkyl carboxylates and sulfonates and precursors in relation to dietary source tracers in the eggs of four species of gulls (Larids) from breeding sites spanning Atlantic to Pacific CanadaWouter A Gebbink
Ecotoxicology and Wildlife Health Division, Wildlife and Landscape Science Directorate, Science and Technology Branch, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada
Environ Int 37:1175-82. 2011..Both aquatic (marine and freshwater) and terrestrial prey are likely sources of PFC exposure to gulls but exposure scenarios are colony-specific... - Current concentrations and spatial and temporal trends in mercury in Great Lakes Herring Gull eggs, 1974-2009D V Chip Weseloh
Canadian Wildlife Service, Environment Canada, Toronto, ON, Canada
Ecotoxicology 20:1644-58. 2011..Examination of contaminant temporal trends in multiple indicator species will ensure accurate inferences regarding contaminant availability in the environment... - Impact of changes in analytical techniques for the measurement of polychlorinated biphenyls and organochlorine pesticides on temporal trends in herring gull eggsShane R de Solla
Wildlife and Landscape Science Directorate, Environment Canada, Burlington, Ontario L7R 4A6, Canada
Environ Toxicol Chem 29:1476-83. 2010..The regression models did not change for 83.3% of the cases. The effects on the interpretation of long-term temporal trends in herring gull eggs, although not negligible, were minor relative to the magnitude of the temporal changes... - Twenty years of temporal change in perfluoroalkyl sulfonate and carboxylate contaminants in herring gull eggs from the Laurentian Great LakesWouter A Gebbink
National Wildlife Research Centre, Science and Technology Branch, Environment Canada, Carleton University, Ottawa, ON K1A 0H3, Canada
J Environ Monit 13:3365-72. 2011..Dietary changes as measured by carbon and nitrogen stable isotopes, showed minimal relationships to PFC levels in gull eggs, which indicates the complexity of aquatic and terrestrial food of gulls and sources of PFCs... - Current-use flame retardants in the eggs of herring gulls (Larus argentatus) from the Laurentian Great LakesLewis T Gauthier
Science and Technology Branch, National Wildlife Research Centre, Environment Canada, Carleton University, Ottawa, ON K1A 0H3, Canada
Environ Sci Technol 41:4561-7. 2007..Given the aquatic diet of herring gull, this suggests that there are non-PBDE BFRs present in the gull-associated aquatic food web of the Great Lakes... - Inter- and intraclutch variation in egg mercury levels in marine bird species from the Canadian ArcticJason A Akearok
Canadian Wildlife Service, Environment Canada, Iqaluit, NU, Canada X0A 0H0
Sci Total Environ 408:836-40. 2010.... - Dramatic changes in the temporal trends of polybrominated diphenyl ethers (PBDEs) in herring gull eggs from the Laurentian Great Lakes: 1982-2006Lewis T Gauthier
National Wildlife Research Centre, Science and Technology Branch, Environment Canada, Carleton University, Ottawa, ON K1S 5B6, Canada
Environ Sci Technol 42:1524-30. 2008.... - Temporal trends and spatial distribution of non-polybrominated diphenyl ether flame retardants in the eggs of colonial populations of Great Lakes herring gullsLewis T Gauthier
Wildlife and Landscape Science Directorate, Science and Technology Branch, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada
Environ Sci Technol 43:312-7. 2009.... - Mercury in parasitic nematodes and trematodes and their double-crested cormorant hosts: bioaccumulation in the face of sequestration by nematodesStacey A Robinson
Department of Biology, Carleton University, 209 Nesbitt Bldg, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
Sci Total Environ 408:5439-44. 2010..Nematodes were accumulating and thus sequestering some of their cormorant hosts' body burden of methyl mercury; however, they were not dramatically reducing their hosts' accumulation of methyl mercury... - Perfluorinated carboxylates and sulfonates and precursor compounds in herring gull eggs from colonies spanning the Laurentian Great Lakes of North AmericaWouter A Gebbink
National Wildlife Research Centre, Science and Technology Branch, Environment Canada, Carleton University, Ottawa, ON K1A 0H3, Canada
Environ Sci Technol 43:7443-9. 2009.... - Comprehensive re-analysis of archived herring gull eggs reconstructs historical temporal trends in chlorinated hydrocarbon contamination in Lake Ontario and Green Bay, Lake Michigan, 1971-1982Ross J Norstrom
National Wildlife Research Centre, Canadian Wildlife Service, Environment Canada, Carleton University (Raven Road, Ottawa, CanadaON K1A 0H3
J Environ Monit 8:835-47. 2006.... - Seabirds as indicators of aquatic ecosystem conditions: a case for gathering multiple proxies of seabird healthMark L Mallory
Canadian Wildlife Service, Box 1714, Iqaluit, NU, Canada X0A 0H0
Mar Pollut Bull 60:7-12. 2010..Collectively, such efforts will greatly improve our ability to establish baseline physiological and chemical levels for seabirds, against which we can detect future changes in aquatic ecosystems...