Natural / geological events

Most of the world’s volcanic eruptions occur around the Pacific rim -  a horseshoe shape of nearly continuous series of volcanic arcs. Here over 75% of the world’s volcanoes occur hence the name ‘The Ring of Fire’ or as it is technically referred to the circum-Pacific seismic belt.  It is around the Pacific Rim, often on the slopes of volcanoes where important conifer habitats occur.  Frequently these contain small populations of narrow endemics. Although active volcanoes contribute to a very small percentage of the total forest habitat loss, it can be significant if the volcano is in a protected area (as is often the case) and this sanctuary represents a significant part of the distribution of a conifer species. When humans put pressure on species and ecosystems, the effects of natural events such as volcanoes can be more detrimental than they would otherwise be and should be considered real threats in some situations.

Taxa in the category - Natural / geological events:

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Abies beshanzuensis M.H.Wu

Endemic to eastern China in Zhejiang Province where only a handful of mature individuals survive Read full species entry >

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Abies yuanbaoshanensis Y.J.Lu & L.K.Fu

Endemic to south-east China where the population is only about 600 individuals Read full species entry >

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Amentotaxus formosana H.L.Li

Restricted to four locations in southern Taiwan where historically the conversion of native forest to conifer plantations has been the main threat Read full species entry >

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Araucaria araucana (Molina) K. Koch

Endemic to southern Argentina and Chile where it mainly occurs in the Andes. Threats include fire, grazing and encroachment from commercial plantations of exotic species. Read full species entry >

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Athrotaxis cupressoides D.Don

Endemic to Tasmania where the main threats are fire, grazing of regeneration and dieback caused by Phytophthora Read full species entry >

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Athrotaxis selaginoides D.Don

One of two Athrotaxis species endemic to Tasmania where historically it has suffered from fire and logging. Today, even with protection, there is a continuing decline due to fire. Read full species entry >

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Cupressus macrocarpa Hartw. ex Gordon

Endemic to a small coastal area of California, USA where there is a potential threat of fire which could increase due to climate change Read full species entry >

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Juniperus barbadensis var. barbadensis

Endemic to one mountain in St Lucia where only about 50 mature individuals survive and are threatened by wild-fires Read full species entry >

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