000 02600nam  2200385za 4500
0019.814095
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008161031s2015    oncbo   ob   f000 0 eng d
020 |a978-0-660-05025-6
040 |aCaOODSP|beng
043 |an-cn---
0861 |aCW69-14/316-2016E-PDF
24500|aCOSEWIC assessment and status report on the common hoptree, Ptelea trifoliata, in Canada |h[electronic resource].
24630|aCommon hoptree, Ptelea trifoliata, in Canada
24615|aCOSEWIC status report on the common hoptree, Ptelea trifoliata, in Canada
260 |aOttawa : |bEnvironment Canada, Canadian Wildlife Service, COSEWIC Secretariat, |cc2015.
300 |axi, 33 p. : |bcol. ill., col. maps
500 |aIssued also in French under title: Évaluation et rapport de situation du COSEPAC sur la ptéléa trifolié, Ptelea trifoliata, au Canada.
500 |aCover title.
500 |a"Special concern, 2015."
500 |a"COSEWIC would like to acknowledge Victoria Nowell, Tyler Smith, Nadia Cavallin, and Jennifer McPhee for writing the status report [...]. This report was overseen and edited by Bruce Bennett, Co-chair of the COSEWIC Vascular Plant Specialist Subcommittee."--Cf. (p. ii).
504 |aIncludes bibliographical references (p. 24-28).
520 |a"Since the last status report in 2002, the number of mature Common Hoptrees in Canada appears to have increased. Subpopulation size at nine sites is increasing, three small sites were extirpated due to development and 11 previously undocumented sites were recorded. Several large occurrences of Common Hoptree have been thoroughly surveyed, leading to a substantial increase in the number of documented Common Hoptrees in Canada. More than 12,000 mature individuals are known to occur in Canada, which is an increase from the estimate of 920 to 1025 given in the 2002 report. Over 90% of the mature individuals occur at Point Pelee National Park”--Preface, p. x.
69207|2gccst|aEndangered species
69207|2gccst|aTrees
69207|2gccst|aNature conservation
7001 |aNowell, Victoria.
7001 |aBennett, Bruce A., |d1964-
7101 |aCanada. |bEnvironment Canada.
7102 |aCommittee on the Status of Endangered Wildlife in Canada.
7102 |aCanadian Wildlife Service.
77508|tÉvaluation et rapport de situation du COSEPAC sur le ptéléa trifolié, Ptelea trifoliata, au Canada |w(CaOODSP)9.814096
85640|qPDF|s1.61 MB|uhttps://publications.gc.ca/collections/collection_2016/eccc/CW69-14-316-2016-eng.pdf