Recovery strategy for the loggerhead shrike prairie subspecies (Lanius ludovicianusexcubitorides) in Canada . : En3-4/198-2015E-PDF
Threats to Prairie Loggerhead Shrike populations on the breeding and wintering grounds include land use changes on wintering grounds and cultivation of natural grasslands on the breeding grounds, as well as predation, severe weather, disease and parasitic infections. Other possible threats include pesticides and environmental contaminants and collisions with vehicles. Recovery is deemed to be feasible although there are some unknowns. In keeping with the precautionary principle, this recovery strategy has been prepared as per section 41(1) of SARA as would be done when recovery is determined to be feasible. The population and distribution objectives for the Prairie Loggerhead Shrikes are to 1) maintain the area of occupancy of the species across its distribution in Manitoba, Saskatchewan and Alberta, and 2) maintain population levels within this area of occupancy, based on information from regional surveys conducted during various times in the period 1993-2010. Broad strategies to address the threats to the survival and recovery of the species are presented in the section on Strategic Direction for Recovery.
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| Ministère/Organisme | Canada. Environment Canada. |
|---|---|
| Titre | Recovery strategy for the loggerhead shrike prairie subspecies (Lanius ludovicianusexcubitorides) in Canada . |
| Variante du titre | Recovery strategy for the loggerhead shrike prairie subspecies |
| Titre de la série | Species at Risk Act recovery strategy series |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Issued also in French under title: Programme de rétablissement de la pie-grièche migratrice de la sous-espèce des prairies (Lanius ludovicianus excubitorides) au Canada. Includes bibliographical references (p. 17-19). |
| Information sur la publication | [Ottawa] : Environment Canada, 2015. |
| Description | iv, 23 p. : fig., ill, maps, tables. |
| ISBN | 978-0-660-02745-6 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Birds Nature conservation |
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