Invasive species

The Japan, Korea and Far Eastern Asia Threatened Conifer Region includes Japan, the Korean peninsular, some of northeastern China  and parts of the Russian Far East. The climate is predominantly warm or cool temperate with temperate rainforests forming in wetter areas. In a few areas such as Yakushima off the southern coast of Japan, climates are more humid and subtropical.  Typhoons, earthquakes and volcanic activity have a significant influence. In this region Japan has the greatest diversity of conifers, with several endemic species and one endemic genus. This may be due to the existence of several refugial areas where conifers survived the Pleistocene glaciations. While diversity may be lower on the mainland, forests tend to be more extensive. Although only eight taxa have been assessed as threatened, eleven others are regarded as being Near Threatened. Principal threats include past and ongoing logging, especially on the mainland, exotic insect pests and air pollution.

Taxa in the category - Invasive species:

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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 koreana E.H.Wilson

Endemic to four mountains in South Korea, the population suffers a range of threats including climate change, introduced pathogens and invasive native and non-native plants 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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Agathis montana de laub.

Endemic to the Mt. Panié range in northern New Caledonia where recent research has found that the decline and loss of old-growth trees is probably due to a combination of factors including root damage by feral pigs, pathogen attack and climate change. 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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Araucaria heterophylla (Salisb.) Franco

Endemic to Australia (Norfolk Island Group) where historical logging and forest clearance significantly reduced the population. Today the main threats relate to the impacts of invasive non-native species. Read full species entry >

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Araucaria humboldtensis J. Buchholz

One of 13 species of Araucaria endemic to New Caledonia where it is restricted to less than five locations. There has been a recent decline in the health of some high altitude stands. Read full species entry >

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