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Technical Thematic Report No. 8. - Trends in breeding waterfowl in Canada

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Trends in breeding waterfowl in Canada

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M. Fast, B. Collins and M. GendronFootnote[1]

Canadian Biodiversity: Ecosystem Status and Trends 2010
Technical Thematic Report No. 8
Published by the Canadian Councils of Resource Ministers

Library and Archives Canada Cataloguing in Publication

Trends in breeding waterfowl in Canada.

Issued also in French under title:
Tendances des populations reproductrices de sauvagine au Canada.
Electronic monograph in PDF format.
ISBN 978-1-100-20820-6
Cat. no.: CW66-315/2012E-PDF

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This report should be cited as:
Fast, M., Collins, B. and Gendron, M. 2011. Trends in breeding waterfowl in Canada. Canadian Biodiversity: Ecosystem Status and Trends 2010, Technical Thematic Report No. 8. Canadian Councils of Resource Ministers. Ottawa, ON. v + 37 p.

© Her Majesty the Queen in Right of Canada, 2012
Aussi disponible en français

Footnotes

Footnote 1

All authors are with the Canadian Wildlife Service, Environment Canada

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Preface

The Canadian Councils of Resource Ministers developed a Biodiversity Outcomes FrameworkFootnote1 in 2006 to focus conservation and restoration actions under the Canadian Biodiversity Strategy.Footnote2 Canadian Biodiversity: Ecosystem Status and Trends 2010Footnote3 was a first report under this framework. It assesses progress towards the framework's goal of "Healthy and Diverse Ecosystems" and the two desired conservation outcomes: i) productive, resilient, diverse ecosystems with the capacity to recover and adapt; and ii) damaged ecosystems restored.

The 22 recurring key findings that are presented in Canadian Biodiversity: Ecosystem Status and Trends 2010 emerged from synthesis and analysis of technical reports prepared as part of this project. Over 500 experts participated in the writing and review of these foundation documents. This report, Trends in breeding waterfowl in Canada, is one of several reports prepared on the status and trends of national cross-cutting themes. It has been prepared by experts in the field of study and reflects the views of its authors.

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Ecological Classification System – Ecozones+

A slightly modified version of the Terrestrial Ecozones of Canada, described in the National Ecological Framework for CanadaFootnote4, provided the ecosystem-based units for all reports related to this project. Modifications from the original framework include: adjustments to terrestrial boundaries to reflect improvements from ground-truthing exercises; the combination of three Arctic ecozones into one; the use of two ecoprovinces – Western Interior Basin and Newfoundland Boreal; the addition of nine marine ecosystem-based units; and, the addition of the Great Lakes as a unit. This modified classification system is referred to as "ecozones+" throughout these reports to avoid confusion with the more familiar "ecozones" of the original framework.Footnote5

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Ecological classification framework for the Ecosystem Status and Trends Report for Canada.

Map

Long Description for Ecosystem Status and Trends Report for Canada

This map of Canada shows the ecological classification framework for the Ecosystem Status and Trends Report, named “ecozones+”. This map shows the distribution of 15 terrestrial ecozones+ (Atlantic Maritime; Newfoundland Boreal; Taiga Shield; Mixedwood Plains; Boreal Shield; Hudson Plains; Prairies; Boreal Plains; Montane Cordillera; Western Interior Basin; Pacific Maritime; Boreal Cordillera; Taiga Cordillera; Taiga Plains; Arctic), two large lake ecozones+ (Great Lakes; Lake Winnipeg), and nine marine ecozones+ (North Coast and Hecate Strait; West Coast Vancouver Island; Strait of Georgia; Gulf of Maine and Scotian Shelf; Estuary and Gulf of St. Lawrence; Newfoundland and Labrador Shelves; Hudson Bay, James Bay and Fox Basin; Canadian Arctic Archipelago; Beaufort Sea).

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Introduction

This report summarizes the results of an integrated analysis of trends of some breeding waterfowl populations in Canada. Although it would be ideal to document population estimates over a long period, such as the 1970s to present, most waterfowl data sets do not cover this full time period. In addition, not all ecozones+ are sufficiently captured by existing waterfowl monitoring programs. As such, only ecozones+ with adequate data coverage are included in this report. It is also important to note that not all breeding waterfowl species are captured by the existing monitoring surveys. For example, population trajectories of species occurring in low densities are often difficult to detect. This is an unfortunate reality because it is often these species (for example, seaducks) that are of greatest concern in terms of conservation. Finally, although Canada has several important waterfowl wintering and staging areas, data sets that could adequately capture long-term trends either do not exist or the analysis of these trends were not available at the time of writing. Below is a description of the methodologies used for the integrated analysis, followed by a description of trends of breeding waterfowl by ecozone+.

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Footnotes

Footnote 1

Environment Canada. 2006. Biodiversity outcomes framework for Canada. Canadian Councils of Resource Ministers. Ottawa, ON. 8 p.

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Footnote 2

Federal-Provincial-Territorial Biodiversity Working Group. 1995. Canadian biodiversity strategy: Canada's response to the Convention on Biological Diversity. Environment Canada, Biodiversity Convention Office. Ottawa, ON. 77 p.

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Footnote 3

Federal-Provincial-Territorial Biodiversity Working Group. 1995. Canadian biodiversity strategy: Canada's response to the Convention on Biological Diversity. Environment Canada, Biodiversity Convention Office. Ottawa, ON. 77 p.

Return to footnote 3 referrer

Footnote 4

Ecological Stratification Working Group. 1995. A national ecological framework for Canada. Agriculture and Agri-Food Canada, Research Branch, Centre for Land and Biological Resources Research and Environment Canada, State of the Environment Directorate, Ecozone Analysis Branch. Ottawa/Hull, ON. 117 p. Report and national map at 1:7 500 000 scale.

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Footnote 5

Rankin, R., Austin, M. and Rice, J. 2011. Ecological classification system for the ecosystem status and trends report. Canadian Biodiversity: Ecosystem Status and Trends 2010, Technical Thematic Report No. 1. Canadian Councils of Resource Ministers. Ottawa, ON.

Return to footnote 5 referrer

Introduction