COSEWIC assessment and status report on the nine-spotted lady beetle, Coccinella novemnotata, in Canada . : CW69-14/731-2016E-PDF
"This species was once common and broadly distributed through southern Canada, from Vancouver Island through the prairies to southern Québec. It has since declined significantly and is now rarely seen. Despite targeted search efforts over the last decade, the species has decreased in abundance relative to other lady beetle species. Specific causes of the decline are unknown. Possible threats include introduction of non-native lady beetles, which could affect this native species through competition, intraguild predation, or introduction of pathogens. Other possible threats include decline inhabitat quality through indirect effects of pesticide/chemical use associated with agriculture to control their prey species, urban expansion, and, abandonment and subsequent natural succession of farmland"--Reason for designation, p. iii.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.818558&sl=1
| 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 nine-spotted lady beetle, Coccinella novemnotata, in Canada . |
| Variante du titre | Nine-spotted lady beetle, Coccinella novemnotata, in Canada COSEWIC status report on the nine-spotted lady beetle, Coccinella novemnotata, 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 coccinelle à neuf points, Coccinella novemnotata, au Canada. Cover title. "Endangered, 2016." "COSEWIC would like to acknowledge Paul Grant for writing the status report [...]. This status report and was overseen and edited by Jennifer Heron, Co-chair of the COSEWIC Arthropods Specialist Subcommittee"--Cf. (p. ii). Includes bibliographical references (p. 42-52). |
| Information sur la publication | Ottawa : Environment Canada, c2016. |
| Auteur / Contributeur | Grant, Paul. Heron, Jennifer. |
| Description | ix, 57 p. : ill. (some in col.), maps (some in col.) |
| ISBN | 978-0-660-05550-3 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Insects Nature conservation |
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