Vulnerable

Conifers which become stressed following habitat disturbance are often out-competed by better adapted native plant species.  For example, in Bosnia and Herzegovina regeneration in some populations of Picea omorika is being supressed by native Fagus sylvatica because of being better adapted to colonising disturbed forest areas. In Western USA fire-supression has reduced the ability of Cupressus bakeri (which is fire-dependent) to regenerate, hence it is gradually being replaced by Abies magnifica and A. concolor.  Native mistletoes species of the genera Arceuthobium, Phoradendron and Psittacanthus can have a deterimental affect on conifers in North America and Mexico. These shrubby, aerial parasites, which are bird dispersed or have explosive fruits, cause deformation of the infected stems, growth loss, increased susceptibility to other disease agents or insects, and reduced longevity. Species of Abies, Cupressus and Juniperus are particularly susceptable to infestation especially if stressed by habitat disturbance.

Taxa in the category - Vulnerable:

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Abies cilicica subsp. isaurica Coode & Cullen

One of five species of firs native to Turkey where it has a restricted distribution in the Taurus Mountains. It is threatened by habitat degradation due to the effects of climate change, pathogen attack and fire. 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 fabri subsp. fabri

Endemic to western Sichuan province in China where acid rain is the most serious threat and is causing a decline in the population Read full species entry >

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Abies fabri subsp. minensis (Bordères & Gaussen) Rushforth

Endemic to western Sichuan in China where acid rain is the main present-day threat Read full species entry >

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Abies fargesii var. faxoniana Rehder & E.H. Wilson

Distributed in China where in the past logging has reduced the population considerably but acid rain is a present day threat 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 recurvata Mast.

A timber tree in western China, which has been heavily exploited until recently when it was decided to preserve the remaining old growth forests Read full species entry >

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Abies recurvata var. ernestii (Rehder) C.T.Kuan

Distributed in several province in China where it has suffered a decline due to logging Read full species entry >

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