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COSEWIC rapid review of classification on the roseate tern, Sterna dougallii in Canada.: CW69-18/24-2023E-PDF

"This globally-distributed colonial seabird breeds on small coastal islands from eastern Nova Scotia to Long Island, New York, and winters from Colombia to eastern Brazil. Regular breeding in Canada is now confined to 2-8 colonies in Nova Scotia, although individuals of this species, and its hybrids with other tern species, are occasionally present in other tern colonies. The Canadian breeding population is about 106-146 mature individuals. Both the number of adult birds breeding in Canada and the range in Canada have declined by about 64% over the past 3 generations (1995-2019). The main factors limiting population recovery are predation, low post-fledging survival rates, habitat degradation, and impacts of stochastic weather events such as hurricanes"--Reason for designation, page iii.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.925685&sl=0

Publication information
Department/Agency
  • Committee on the Status of Endangered Wildlife in Canada, issuing body.
  • Canada. Environment and Climate Change Canada, issuing body.
TitleCOSEWIC rapid review of classification on the roseate tern, Sterna dougallii in Canada.
Variant title
  • Roseate tern, Sterna dougallii in Canada
Publication typeMonograph
Language[English]
Other language editions[French]
FormatDigital text
Electronic document
Note(s)
  • Cover title.
  • Issued also in French under title: Examen rapide de la classification du COSEPAC pour le Sterne de Dougall, Sterna dougallii au Canada.
  • "Endangered 2023."
  • Includes bibliographical references (pages xiv-xv).
Publishing information
  • Ottawa, ON : Committee on the Status of Endangered Wildlife in Canada = Comité sur la situation des espèces en péril au Canada, 2023.
  • ©2023
Description1 online resource (xvi pages) : maps
ISBN9780660497211
Catalogue number
  • CW69-18/24-2023E-PDF
Subject terms
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