The service also analyzed a small number of east coast birds for cadmium and lead. This report summarizes the results of this testing and its effects on the seabird populations.
When the persistent organochlorine & heavy metal contaminants (CO) accumulate to high enough levels in biological organisms, they cause reproductive failure, congenital abnormalities, & adverse physiological changes.
A dramatic decline in the gannet population on Bonaventure Island in the Gulf of St. Lawrence led scientists to investigate the levels of toxic compounds in the birds' environment.
"This review was carried out to: assess the current levels of pollutants in Canadian marine birds; determine whether pollutants had affected or are continuing to affect seabird health; and evaluate the reliability of seabirds as indicators ...
An example from this series was I.M. Cowan's study entitled Birds of Jasper National Park , Alberta , Canada ( Ottawa : Canadian Wildlife Service , 1955 . 66 p . Canadian Wildlife Service Wildlife Management Bulletin . Series 2 , No.
CHAPTER 8 Patterns and Trends of Organic Contaminants in Canadian Seabird Eggs, 1968–90 J. E. ELLIOTT*, D. G. NOBLEt, R. J. NORSTROMt, P. E. WHITEHEAD*, M. SIMONt, P. A. PEARCE+ and D. B. PEAKALLt * Canadian Wildlife Service, ...
This report focuses on those chemicals that persist in the Canadian environment and that are accumulated by aquatic organisms. It summarizes scientific information collected previously, with emphasis on Canadian research...
Chlorinated hydrocarbon contaminants in grebes and seaducks wintering on the coast of British Columbia, Canada: 1988–1993. Environ. Mon. Assess. ... Patterns and trends of organic contaminants in Canadian seabirds, 1968–1990.
Bertram , Douglas F. 1988. The provisioning of nestlings by parent Rhinoceros Auklets ( Cerorhinca monocerata ) . Burnaby , BC : Simon Fraser University ; 100 p . M.Sc. Thesis . Bertram , Douglas F .; Kaiser , Gary W. 1988.
Environmental contaminants in Canadian seabirds 1968–1985 : Trends and effects . Techn . Rep . Ser . No. 13. Can . Wildl . Serv . , Ottawa , CanaReferences Airey , D. 1983. Total mercury concentrations in human hair from 13 countries in ...
P. A. Pearce, J. E. Elliott, D. B. Peakall and R. J. Norstrom, "Organochlorine contaminants in eggs of seabirds in the northwest Atlantic, 1968-1984, " Canadian Wildlife Service manuscript (in prep . ). J. E. Elliott, R. J. Norstrom and ...