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NRLD - 95960 | Reithrodontomys megalotis dychei

Assessment ID
95960
Taxon name
Reithrodontomys megalotis dychei
Infrarank
Reithrodontomys megalotis dychei
Infratype
Subspecies (animalia)
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Reithrodontomys megalotis dychei
Common name(s)
Western Harvest Mouse dychei subspecies (English), Souris des moissons de la sous-espèce dychei (Français)
Assessed taxon level
Subspecies
Infrarank
Reithrodontomys megalotis dychei
Infratype
Subspecies (animalia)
Higher level taxonomic groupings
Vertebrates
Mammals
Kingdom
Animalia
Phylum
chordata
Class
mammalia
Order
rodentia
Family
muridae
Genus
Reithrodontomys
Species
megalotis dychei
Species authority
Location and scope
Specific locality or subnational name or regional name
Canada
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Canada
Country ISO code(s)
CAN
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Endangered; En voie de disparition
Abbreviated status
EN
Criteria system used
Modified IUCN

(see Assessment details)

Assessment rationale/justification
This subspecies has a limited range and has been found at only one location in the past 40 years; this location is isolated from others. Dispersal distance is limited and the population fluctuates. This species is commonly found in owl pellets in the USA, but none have been reported in owl pellets (including burrowing owls) in Suffield or other areas in southeast Alberta, despite substantial sampling. Owl pellet analysis is an excellent means of sampling for these mice.; Cette sous-espèce a une aire de répartition limitée et a été observée à un seul emplacement dans les 40 dernières années; cet emplacement est isolé des autres emplacements. La distance de dispersion est limitée et la taille de la population fluctue. Cette sous-espèce est fréquemment trouvée dans les boulettes de régurgitation des strigidés aux États-Unis, mais n'a pas été rapportée dans celles des strigidés (y compris les Chevêches des terriers) à Suffield, ou à d'autres endroits dans le sud-est de l'Alberta, malgré le nombre important d'échantillons. L'analyse des boulettes de régurgitation des strigidés est un excellent moyen d'échantillonnage de cette souris.
Assessment details
Year assessed
2007
Assessors/contributors/reviewers listed
Committee on the Status of Endangered Wildlife in Canada. Environment Canada.
Criteria system used
Modified IUCN
Reference for methods given
COSEWIC- Committee on the Status of Endangered Wildlife in Canada (2007)
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
Taxon distribution as listed in assessment
Alberta
Is there a map available in assessment?
Not_assigned
Habitat and systems
Ecological system type
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Threats and conservation measures listed
Threats listed in assessment
No information available
History
Species considered in April 1994 and placed in the Data Deficient category. Re-examined in April 2007 and designated Endangered.; Espèce étudiée en avril 1994 et classée dans la catégorie ' données insuffisantes '. Réexamen en avril 2007 et désignée ' en voie de disparition '.
Publication
COSEWIC. 2007. Canadian Wildlife Species at Risk. Committee on the Status of Endangered Wildlife in Canada. Web site: https://www.canada.ca/en/services/environment/wildlife-plants-species/species-risk.html