COSEWIC assessment and status report on the eastern yellow-bellied racer, Coluber constrictor flaviventris, and the western yellow-bellied racer, Coluber constrictor mormon, in Canada . : CW69-14/413-2016E-PDF
"Since the previous status report (COSEWIC 2004), new survey information has helped refine distributions of both the Eastern and Western Yellow-bellied Racers, and several previously unknown den sites have been documented. New molecular work completed on 150 Eastern Yellow-bellied Racers from two river valleys (Frenchman and the Big Muddy river valleys) indicates that there may be several genetically distinct subpopulations in Canada. A major terrain slump event occurred in the spring of 2011 at the largest known den site of the Eastern Yellow-bellied Racer and displaced or killed a potentially significant but unknown proportion of racers at the den. No new information exists on population size and trends of Western Yellow-bellied Racers, but threats have been assessed and remain substantial”--Preface, p. xvi.
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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 eastern yellow-bellied racer, Coluber constrictor flaviventris, and the western yellow-bellied racer, Coluber constrictor mormon, in Canada . |
| Variante du titre | Eastern yellow-bellied racer, Coluber constrictor flaviventris, and the western yellow-bellied racer, Coluber constrictor mormon, in Canada COSEWIC status report on the eastern yellow-bellied racer, Coluber constrictor flaviventris, and the western yellow-bellied racer, Coluber constrictor mormon, in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur la couleuvre agile à ventre jaune de l'Est, Coluber constrictor flaviventris, et la couleuvre agile à ventre jaune de l'Ouest, Coluber constrictor mormon, au Canada. Cover title. "Threatened, 2015." "COSEWIC would like to acknowledge Ray Poulin ... [et al.] for writing the draft of the status reportwould like to acknowledge Ray Poulin, Chris Somers, Laura Gardiner, and Jessica Martino for writing the draft of the status report [...]. This report was overseen, edited, revised, and updated by Jim Bogart and Kristiina Ovaska, Co-chairs of the COSEWIC Amphibians and Reptiles Specialist Subcommittee"--Cf. (p. ii). Includes bibliographical references (p. 43-52). |
| Information sur la publication | Ottawa : Environment Canada, Canadian Wildlife Service, COSEWIC Secretariat, c2015. |
| Auteur / Contributeur | Poulin, Ray G.,1970- Bogart, James P.,1940- Ovaska, Kristiina Elisabeth,1952- |
| Description | xviii, 64 p. : col. ill., maps (some in col.) |
| ISBN | 978-0-660-05007-2 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Reptiles Nature conservation |
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