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.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.925685&sl=1
| Ministère/Organisme | Committee on the Status of Endangered Wildlife in Canada, issuing body. Canada. Environment and Climate Change Canada, issuing body. |
|---|---|
| Titre | COSEWIC rapid review of classification on the roseate tern, Sterna dougallii in Canada. |
| Variante du titre | Roseate tern, Sterna dougallii in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| 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). |
| Information sur la publication | Ottawa, ON : Committee on the Status of Endangered Wildlife in Canada = Comité sur la situation des espèces en péril au Canada, 2023. ©2023 |
| Description | 1 online resource (xvi pages) : maps |
| ISBN | 9780660497211 |
| Numéro de catalogue |
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| Descripteurs | Roseate tern -- Nova Scotia. Rare birds -- Nova Scotia. Sea birds -- Nova Scotia. |