Macrolichens in Tasmanian Rainforests
| Autor: | P. W. James, G. Kantvilas, S. J. Jarman |
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| Rok vydání: | 1985 |
| Předmět: | |
| Zdroj: | The Lichenologist. 17:67-83 |
| ISSN: | 1096-1135 0024-2829 |
| DOI: | 10.1017/s0024282985000081 |
| Popis: | macrolichens, including 12 new records, are reported for cool temperate rainforests in Tasmania. These species belong mainly to the austral cool temperate element. A descriptive account of the lichen floras from five major rainforest communi- ties is given. Field observations suggest that substrate and light are the most important ecological factors affecting the distribution of lichens in rainforest. Although most species are widespread in Tasmania, large-scale disturbance and the fragmentation of rainforest stands is seen as a threat to their survival. Abundance 'subjectively assessed) and presence-absence data for macrolichens were obtained from over 300, 20 x 20 m quadrats examined during a survey of higher plant communities in cool temperate rain- forest in Tasmania. The quadrats were located subjectively to include a broad range of geographical, altitudinal and topographical situations within rainforest vegetation. Lichen data were recorded from the lower levels of the forest (to 3—4 m above the ground surface) and included epiphytic, saxicolous and terricolous species. Due to their inaccessibility, canopy lichens were incompletely surveyed but limited information was derived from litter, fallen branches and, more rarely, from fallen trees. Supplementary data from previous work (Kantvilas & James, unpublished) and from numerous spot- checks in a range of vegetation types provided a general overview for the lichen survey. |
| Databáze: | OpenAIRE |
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