00000nam 2200000zi 4500 9.891301 CaOODSP 20221107172838 m o d f cr ||||||||||| 200909t20202020quc ob f000 0 eng d 9780660359847 CaOODSP eng rda CaOODSP eng fre n-cn-bc CW66-618/2020E-PDF Rodway, Michael S., author. Age and sex-ratios of sea ducks wintering in the Strait of Georgia, British Columbia, Canada (2003, 2004, 2008, 2014, 2015) : implications for monitoring / M.S. Rodway, H.M. Regehr, and W.S. Boyd. [Gatineau, QC] : Environment and Climate Change Canada = Environnement et Changement climatique Canada, 2020. ©2020 1 online resource (viii, 87 pages) text txt rdacontent computer c rdamedia online resource cr rdacarrier Issued also in French under title: Rapports entre les classes d'âge et rapports des sexes chez les canards de mer hivernant dans le détroit de Georgia, en Colombie Britannique, au Canada (2003, 2004, 2008, 2014, 2015) : incidences sur les activités de suivi. Cover title. "Technical Report Series Number 537." Includes bibliographical references (pages 33-37). "Winter age and sex ratios provide valuable demographic data for sea ducks that are difficult to obtain by other means. Our objectives were to determine spatial, temporal, and density-related variability in age and sex ratios for five, and in proportions of adult males for 11, sea duck species that winter in the Strait of Georgia, British Columbia"--Abstract. Includes abstract in French. Sea ducks Monitoring Georgia, Strait of (B.C. and Wash.) Canada. Environment and Climate Change Canada, issuing body. Rapports entre les classes d’âge et rapports des sexes chez les canards de mer hivernant dans le détroit de Georgia, en Colombie Britannique, au Canada (2003, 2004, 2008, 2014, 2015) : (CaOODSP)9.891300 PDF 2.26 MB https://publications.gc.ca/collections/collection_2021/eccc/cw66/CW66-618-2020-eng.pdf