endemic to a single state or province
Regularity: Regularly occurring
Type of Residency: Year-round
Global Range: Hoffmann and Smith (in Wilson and Reeder 2005) stated that the range is restricted to the Manzano Mountains, New Mexico. However, according to Frey (2004), the range includes a larger extent of montane habitat in central New Mexico, encompassing Mount Taylor, Datil, Magdalena, San Mateo, Manzano, Captian, and Sacramento mountains), as well as some nonmontane areas at the northeastern edge of the range (Conchas River and Mesa de la Yegua in central San Miguel County) (e.g., Bailey 1931, Hall 1981). Cottontails on the Mogollon Plateau in southern Catron County, assigned to S. floridanus by Findley et al. (1975), may be S. cognatus or S. nuttallii (Frey 2004).
Catalog Number: USNM 136569
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Mammals
Sex/Stage: Unknown; Adult
Preparation: Skin; Skull
Collector(s): A. Rea
Year Collected: 1905
Locality: Tajique, near summit of Manzano Mountains [= vicinity of Rea Ranch, 1.9 km N and 13.4 km W of Tajique, T6N, R5E, NE 1/4 of NW 1/4 Sec. 9, NE side of Bosque Peak (see Frey et al 1997:331)], Torrance County, New Mexico, United States, North America
Elevation (m): 2880
- Type: Nelson, E. W. 1907 Jul 22. Proceedings of the Biological Society of Washington. 20: 82.
Habitat and Ecology
Habitat Type: Terrestrial
Comments: Habitats include primarily montane areas but may include some lowland habitats as well (Frey 2004).
Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 6 - 20
Comments: Based on information in Frey (2004), this cottontail occurs in several distinct mountain ranges, each of which may encompass multiple occurrences (subpopulations).
IUCN Red List Assessment
Red List Category
Red List Criteria
- 1996Not Evaluated (NE)
National NatureServe Conservation Status
Rounded National Status Rank: N2 - Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G2 - Imperiled
Reasons: The range encompasses central New Mexico; status is uncertain due to inconsistencies in range descriptions (one mountain range versus several).
Global Short Term Trend: Unknown
Comments: Current trend is unknown.
Global Long Term Trend: Increase of 10-25% to decline of 30%
Comments: Extent of occurrence, area of occupancy, or number of subpopulations apparently have not changed compared to the historical situation.
Comments: According to Hoffman and Smith (in Wilson and Reeder 2005), this species is "likely endangered." However, this is based on the belief that the range is confined to the Manzano Mountains (compare Frey 2004).
Manzano mountain cottontail
The Manzano mountain cottontail (Sylvilagus cognatus) is a species of cottontail rabbit endemic to the Manzano Mountains in New Mexico, USA. It occurs in coniferous forests in high elevation. It was previously thought to be a subspecies of the Eastern cottontail.
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Names and Taxonomy
Comments: Sylvilagus cognatus formerly was included in S. floridanus. Based on information presented by Ruedas (1998), Frey (2004) and Hoffman and Smith (in Wilson and Reeder 2005) recognized S. cognatus as a distinct species.