Hotwater physa (Physella wrighti) COSEWIC assessment and upate status report
Official title: COSEWIC Assessment and Update Status Report on the Hotwater Physa (Physella Wrighti) in Canada COSEWIC Assessment and Update Status Report on the Hotwater Physa Physella Wrighti in Canada
Table of contents
- Assessment Summary
- Executive Summary
- Species Information
- Distribution
- Habitat
- Biology
- Population Sizes and Trends
- Limiting Factors and Threats
- Special Significance of the Species
- Existing Protection or Other Status Designations
- Technical Summary
- Authorities Consulted
- Information Sources
- Biographical Summary of Report Writer
- Appendix A: Calculation of Extent of Occurrence and Area of Occupancy for Physella wrighti – August 2006
- Appendix B: Survey Data for Physella wrighti: 1997 and 2006.
Endangered 2008
COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows:
COSEWIC. 2008. COSEWIC assessment and update status report on the Hotwater Physa Physella wrighti in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 35 pp.
Previous report
COSEWIC. 2000. COSEWIC assessment and status report on the Hotwater Physa Physella wrighti in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 25 pp.
Lee, Jacqueline S. and Ackerman, Josef, D. 1998. COSEWIC (Draft) status report on the Hotwater Physa Physella wrighti in Canada. Committee on the Status of Endangered Wildlife in Canada. iii + 25 pp.
Production note
COSEWIC would like to acknowledge Jacqueline S. Lee for writing the update status report on the Hotwater Physa Physella wrightiprepared under contract with Environment Canada. This report was overseen and edited by Robert Forsyth, Co-chair of the COSEWIC Molluscs Specialist Subcommittee.
For additional copies contact:
COSEWIC Secretariat
c/o Canadian Wildlife Service
Environment Canada
Ottawa, ON
K1A 0H3
Tel.: 819-953-3215
Fax: 819-994-3684
COSEWIC E-mail
COSEWIC Website
Également disponible en français sous le titre Rapport du COSEPAC sur la situation de la physa d’eau chaude (Physella wrighti) au Canada – Mise à jour.
Cover illustration
Hotwater Physa – Illustration by Trent Hoover.
©Her Majesty the Queen in Right of Canada, 2008.
Catalogue No. CW69-14/179-2008E-PDF
ISBN 978-0-662-48914-6
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