COSEWIC assessment and status report on the red crossbill percna subspecies, Loxia curvirostra percna, in Canada . : CW69-14/394-2016E-PDF
"This subspecies is a distinctive taxonomic group endemic to Canada. Previously known to breed only on the island of Newfoundland, it has within the past five years also been documented nesting on Anticosti Island. While the Canadian population is thought to be greater than was understood previously due to the recent discovery of a breeding population component on Anticosti Island, there is no evidence of an increasing trend. On the contrary, this taxon has experienced a substantial long-term decline. Further population decrease is expected based on identified threats, most notably competition and predation from introduced squirrels in Newfoundland, habitat loss due to logging, and a fungal disease affecting Red Pine"--Reason for designation, p. iii.
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| Ministère/Organisme | Canada. Environment Canada. Committee on the Status of Endangered Wildlife in Canada. Canadian Wildlife Service. |
|---|---|
| Titre | COSEWIC assessment and status report on the red crossbill percna subspecies, Loxia curvirostra percna, in Canada . |
| Variante du titre | Red crossbill percna subspecies, Loxia curvirostra percna, in Canada COSEWIC status report on the red crossbill percna subspecies, Loxia curvirostra percna, in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Édition précédente | COSEWIC assessment and status report on the red crossbill, percna subspecies, Loxia curvirostra percna, in Canada |
| Format | Électronique |
| Document électronique | |
| Note(s) | Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur le bec-croisé des sapins de la sous-espèce percna, Loxia curvirostra percna, au Canada. Cover title. "Threatened, 2016." "COSEWIC would like to acknowledge Tina D. Leonard for writing the status report [...]. This report was overseen and edited by Marcel Gahbauer, Co-chair of the COSEWIC Birds Specialist Subcommittee"--Cf. (p. ii). Includes bibliographical references (p. 43-54). |
| Information sur la publication | Ottawa : Environment Canada, c2016. |
| Auteur / Contributeur | Leonard, Tina Deanne,1981- Gahbauer, Marcel A. |
| Description | xiii, 62 p. : col. ill., maps (some in col.) |
| ISBN | 978-0-660-05554-1 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Birds Nature conservation |