Pinus arizonica var. stormiae Martínez

Pinaceae

Endemic to northern Mexico where many years of logging has caused a decline of mature individuals

Associated Names:

Distribution

Mexico: mainly in southern Nuevo León, a few localities in southern Coahuila, Zacatecas and possibly San Luís Potosí.

Populations are likely to be undergoing some decline due to logging.

Habitat and Ecology

Similar as for the species, but generally in drier forests.

Human Uses

Used for timber for light construction

Conservation Status

Global status

Vulnerable B1ab(ii,iii,v)+2ab(ii,iii,v)

Global rationale

The extent of occurrence is estimated to be 6,685 km² and there are 3–4 locations. The area of occupancy of 768km² was calculated on the basis of comprehensive locality data based on herbarium collections. A grid width of 8 km was chosen as this is a forest forming taxon, it may be on the optimistic side given the decline of large trees reported in the 1980s (Perry, 1991). Its EOO and AOO fall within the threshold for Vulnerable and there is continuing decline due to logging.

Global threats

Logging over many years has caused a decline of mature trees in many of the more accessible stands, reducing these to a few individuals in small, scattered groups (Perry, 1991).

Conservation Actions

Forests with this taxon should be managed more sustainably, allowing plenty of time for regeneration to take effect