Sex and age - specific distributions of sea ducks wintering in the Strait of Georgia, British Columbia : implications for the use of age ratios as an index of recruitment / S.A. Iverson ... [et al.]. : CW69-5/459E-PDF
"Management of sea duck populations in North America has been hampered by a lack of effective population monitoring tools. In this study, we used sex and age ratios calculated from direct visual counts to assess the demographic structure of the nine most common sea duck species wintering in the Strait of Georgia, British Columbia: Black Scoters (Melanitta nigra), Surf Scoters (M. perspicillata), White-winged Scoters (M. fusca), Harlequin Ducks (Histrionicus histrionicus), Barrow’s Goldeneye (Bucephala islandica), Common Goldeneye (B. clangula), Bufflehead (B. albeola), Common Mergansers (Mergus merganser), and Red-breasted Mergansers (M. serrator)"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.858708&sl=1
| Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. Pacific and Yukon Region. |
|---|---|
| Titre | Sex and age - specific distributions of sea ducks wintering in the Strait of Georgia, British Columbia : implications for the use of age ratios as an index of recruitment / S.A. Iverson ... [et al.]. |
| Titre de la série | Technical report series ; no. 459 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Autres formats offerts | Papier-[Anglais] |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Issued also in print format. Includes abstract in French. |
| Information sur la publication | Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region, 2006. |
| Auteur / Contributeur | Iverson, S. A. (Samuel A.), 1973- |
| Description | vii, 56 p. : charts. |
| Numéro de catalogue |
|
| Descripteurs | Aquatic birds Population distribution Sea ducks |
Demander des formats alternatifs
Pour demander une publication dans un format alternatif, remplissez le formulaire électronique des publications du gouvernement du Canada. Utilisez le champ du formulaire «question ou commentaire» pour spécifier la publication demandée.- Date de modification :