COSEWIC assessment and status report on the eastern hog-nosed snake Heterodon platirhinos in Canada. : CW69-14/537-2021E-PDF
"This large, mobile snake has a patchy distribution in southern and south-central Ontario, where it relies on habitats with sandy soils for oviposition and hibernation, and feeds mainly on toads. The population faces a suspected continuing decline in abundance, based on ongoing threats. These include road traffic mortality, road construction and expansion, urban expansion, agricultural intensification, introduced and abnormally abundant predators, and persecution. Based on recent extirpation of five subpopulations, there appear to be significant range contractions in landscapes highly modified by agriculture and urbanization in the south, as well as in more intact landscapes in the northeast, including protected areas. The magnitude of decline is uncertain because this species is more challenging to monitor than other, similarly sized snakes. However, declines are suspected to exceed 30% over the next 20 years"--Reason for designation, page iii.
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| Ministère/Organisme | Committee on the Status of Endangered Wildlife in Canada, issuing body. Canada. Environment and Climate Change Canada, issuing body. |
|---|---|
| Titre | COSEWIC assessment and status report on the eastern hog-nosed snake Heterodon platirhinos in Canada. |
| Variante du titre | COSEWIC status report on the eastern hog-nosed snake Heterodon platirhinos in Canada Eastern hog-nosed snake Heterodon platirhinos in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Édition précédente | COSEWIC assessment and update status report on the Eastern Hog-nosed Snake, Heterodon platirhinos, in Canada 2008 |
| Format | Électronique |
| Document électronique | |
| Note(s) | Cover title. "Threatened 2021"--Cover. Issued also in HTML format. Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur la couleuvre à groin de l'Est Heterodon platirhinos au Canada. Includes bibliographical references (pages 32-39). |
| Information sur la publication | Ottawa, ON : COSEWIC Secretariat, Canadian Wildlife Service, Environment and Climate Change Canada, 2021. ©2021 |
| Description | 1 online resource (xi, 45 pages) : maps |
| ISBN | 9780660396866 |
| Numéro de catalogue |
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| Descripteurs | Eastern hognose snake -- Ontario. Rare reptiles -- Ontario. |
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