Ecologie de la mue et de la migration automnale chez l'Arlequin plongeur (Histrionicus histrionicus) /

By:

Langlois, Annie

Material type: Text

TextSeries: Thesis. (M.Sc.)Publication details: QC : Universite Laval, 2006.ISBN:

9780494178133

Dissertation note: Thèse (M.Sc.)--Universite Laval, 2006. Abstract: The eastern North-American population of Harlequin Ducks is classified as of "special concern" by COSEWIC (2006). Because of the importance of staging areas and, especially, the moulting period in the species'life cycle, a better understanding of its ecology and needs in terms of habitat is essential. I examined temporal patterns of abundance, the distribution of individuals within this area and habitat features that influenced distribution during moult and fall migration in the Gasp ̌Peninsula. The number of individuals occupying the study area was higher during fall migration than during moult and was mainly composed of females. The population demonstrated a higher selectiveness during moult, when more factors impacted on the presence and number of individuals. The moulting period started at the end of June, to end in early November, and had a significant impact on the individuals'behaviour.

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Item type	Current library	Collection	Call number	Status	Date due	Barcode
Book	Boreal Office Stacks	Non-fiction	Dissertations (Browse shelf(Opens below))	Available		10193

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Previous	Dissertations Use of beaver-influenced wetlands by waterfowl on the Kanuti National Wildlife Refuge /	Dissertations Responses of bird communities inhabiting boreal plain riparian habitats to forestry and fire /	Dissertations Utilization of beaver flowages by waterfowl on the Chippewa National Forest, Minnesota /	Dissertations Ecologie de la mue et de la migration automnale chez l'Arlequin plongeur (Histrionicus histrionicus) /	Dissertations Boreal plains peatlands : characterization, plant diversity, biogeography, and impacts from logging /	Dissertations Waterbird habitat use of wetland pools in the western boreal forest of Alberta, Canada /	Dissertations Waterfowl herbivory on submerged macrophytes in eutrophic lakes /	Next

Thèse (M.Sc.)--Universite Laval, 2006.

Comprend des réf. bibliogr.

The eastern North-American population of Harlequin Ducks is classified as of "special concern" by COSEWIC (2006). Because of the importance of staging areas and, especially, the moulting period in the species'life cycle, a better understanding of its ecology and needs in terms of habitat is essential. I examined temporal patterns of abundance, the distribution of individuals within this area and habitat features that influenced distribution during moult and fall migration in the Gasp ̌Peninsula. The number of individuals occupying the study area was higher during fall migration than during moult and was mainly composed of females. The population demonstrated a higher selectiveness during moult, when more factors impacted on the presence and number of individuals. The moulting period started at the end of June, to end in early November, and had a significant impact on the individuals'behaviour.

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