Overview

Distribution

Range Description

This species occurs in Baja California, Mexico (Alvarez-Castaeda et al. 1996).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is poorly known. It is found in desert shrubland and open mountain forests in areas of volcanic origin. Vegetation is dominated by Pachycereus pringlei (cardon), Machaerocereus gummosus (pitaya agria), Lemairocereus thurberi (pitaya dulce), Opuntia cholla (choya), Prosopis juliflora (mesquite), Lysiloma candida (palo blanco), Burcera ceraciflora (torote) and Jatropha cinerea (lomboy) (Alvarez-Castaeda et al. 1996).

This species is primarily found near water holes in the Gigantas Sierra and Sierra de San Francisco. It feeds on Datil plants. Because of this specific habitat preference, populations are very isolated and fragmented.

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Spermophilus atricapillus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(v)

Version
3.1

Year Assessed
2008

Assessor/s
lvarez-Castaeda, S.T., Castro-Arellano, I. & Lacher, T.

Reviewer/s
McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)

Contributor/s

Justification
Listed as Endangered because its extent of occurrence is less than 5,000 km2, its habitat is severely fragmented, and is experiencing population decline due to hunting.

History
  • 1996
    Lower Risk/least concern (LR/lc)
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Population

Population
No population information could be found. This species has a restricted and fragmented range with low population density. It occurs in isolated and fragmented populations.

Population Trend
Decreasing
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Threats

Major Threats
This species is hunted. It is sometimes considered a pest to crops (squash, Datil).
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Management

Conservation Actions

Conservation Actions
Part of this species range lies within a protected area.
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Wikipedia

Baja California rock squirrel

The Baja California rock squirrel (Otospermophilus atricapillus) is a species of rodent in the Sciuridae family. It is endemic to Mexico.[2]

References[edit]

  1. ^ Álvarez-Castañeda, S. T., Castro-Arellano, I. & Lacher, T. (2008). Spermophilus atricapillus. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 8 January 2009.
  2. ^ Helgen, Kristofer M.; Cole, F. Russel; Helgen, Lauren E.; and Wilson, Don E (2009). "Generic Revision in the Holarctic Ground Squirrel Genus Spermophilus". Journal of Mammalogy 90 (2): 270–305. doi:10.1644/07-MAMM-A-309.1. Archived from the original on 22 October 2011. 
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