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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.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.814007&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Environment Canada.
  • Committee on the Status of Endangered Wildlife in Canada.
  • Canadian Wildlife Service.
TitreCOSEWIC 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 publicationMonographie
Langue[Anglais]
Autres langues publiées[Français]
FormatTexte numérique
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-
Descriptionxviii, 64 p. : col. ill., maps (some in col.)
ISBN978-0-660-05007-2
Numéro de catalogue
  • CW69-14/413-2016E-PDF
Descripteurs
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