Fire

Fires may be the result of natural phenomena such as lightning or they may be man-induced. Usually natural fires are an integral part of plant community development and influence such things as soil nutrient availability and biological diversity. In contrast, uncontrolled or wildfires disrupt such processes and can have a catastrophic impacts. The vast majority of wildfires are intentionally set and often occur in conifer forests. In recent years extended droughts, together with the rapidly expanding exploitation of tropical forests and the demand for the conversion of forests to other land uses, have resulted in a dramatic increase in wildfires. While some conifers have evolved to be fire dependent by having serotinous cones that open and release their seed in response to fire, their populations are so small or fragmented that even natural fires may be catastrophic. This is particularly evident in areas with a Mediterranean climate. It is the introduction of inappropriate fire regimes (frequency, severity, or seasonal timing) that can have the most severe impact.

Taxa in the category - Fire:

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Cupressus guadalupensis var. guadalupensis

Endemic to Mexico where it only occurs on Guadalupe Island and is seriously threatened by grazing goats and 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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Cupressus sargentii Jepson

Endemic to the coastal mountain ranges in California, USA. Even though it has a relatively large range, it is threatened by fire Read full species entry >

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Cupressus tonkinensis Silba

A critically endangered species restricted to a small area of northern Việt Nam. It is not included on the IUCN Redlist as it is treated as a synonym of Cupresus torulosa on the World Checklist, the IUCN's primary reference source for conifer taxonomy. Research since 2005 indicates that it is a distinct taxon. Read full species entry >

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Dacrydium guillauminii J.Buchholz

One of four species of Dacrydium endemic to New Caledonia where it has an extremely restricted distribution and is Critically Endangered due to fire, tourism and flooding. Read full species entry >

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Dacrydium medium de Laub.

Native to Peninsular Malaysia and north Sumatera and threatened by fire and tourism. Read full species entry >

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Fitzroya cupressoides (Molina) I.M.Johnst.

A genus with a single species endemic to Argentina and Chile where it is globally threatened by selective logging, grazing and fire Read full species entry >

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Juniperus barbadensis L.

Endemic to the Caribbean in the Bahamas, Cuba, Jamaica and St Lucia where threats include logging, fire and urbanisation Read full species entry >

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