Fire

The Mexican and southwest USA Threatened Conifer Region stretches from central southern California south to the Guatemalan border. In the north a broadly Mediterranean climate prevails with summer droughts a major limiting factor. In Mexico, conifers occur in a range of climates that include cold subalpine areas of the highest volcanoes and the lush, lowland tropical forests. Most species are found in the pine-oak woodlands that once covered extensive areas of the many mountain ranges in Mexico.  This region is important for conifer diversity and is the main centre for the genus Pinus with over 50 species which represents 50% of all known species. Unfortunately this region has the highest number of threatened taxa with more than 60  mostly being threatened mainly by widespread over-exploitation, fire and the conversion of forests for agriculture. Many species are narrow endemics of relictual origin with small populations close to the tops of mountains. These taxa are particularly vulnerable to the impacts of changes to precipitation associated with climate change. 

Taxa in the category - Fire:

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Abies delavayi subsp. fansipanensis (Q.P.Xiang) Rushforth

This subspecies, described in 1997, is restricted to a single mountain in Northern Việt Nam. The main threats are its small population size and restricted distribution which make it potentially susceptible to stochastic events.  Read full species entry >

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Abies fabri (Mast.) W. G. Craib

Endemic to south-central China where acid rain is the most serious threat and is causing decline or death to many of the trees Read full species entry >

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Abies fraseri (Pursh) Poir.

Distributed in three States of eastern USA but as a result of severe infestation from the Balsam woolly adelgid, only one population remains unaffected Read full species entry >

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Abies hidalgensis Debreczy, Rácz & Guizar

Endemic to the State of Hidalgo in eastern Mexico where fire is a potential threat to the small population Read full species entry >

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Abies kawakamii (Hayata) T.Itô

A subtropical alpine fir restricted to a few areas in Taiwan. Climate change is likely to have a significant impact on this species. Currently it is assessed as Near Threatened Read full species entry >

Mature cones
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Abies nebrodensis (Lojac.) Mattei

A narrow endemic native to the Madonie Mountains of Sicily where the entire population consists of only 30 individuals. Read full species entry >

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Abies pinsapo Boiss.

The Spanish fir has two subspecies distributed in southern Spain and northern Morocco where threats include fire, grazing and climate change. Read full species entry >

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Abies pinsapo var. marocana (Trabut) Ceballos & Bolanos

The Moroccan fir is restricted to two small forests in the Rif Mountains of northern Morocco where over a period of 60 years it has suffered a 70% decline. Read full species entry >

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