Abstract
A preliminary red list of threatened lichens of Lower Silesia (SW Poland) is presented. Species have been valuated according to the Red Data Book Categories (IUCN). The list comprises 602 taxa (ca. 60% of the whole lichen flora of Lower Silesia). 52 species are considered as rare (category R), 84 - as vulnerable (V), and 63 species - as endangered (E). The Silesian lichen flora is characterized by great numbers of taxa with extinct (Ex -140 taxa), and indeterminate (I - 263 taxa) categories.
Highlights
Two subsequent editions of Polish red list of threatened lichens published recently (Cieliñski et al 1986, 1992) drew lichenologists attention of to a process of the extinction of lichen species and inspired them to prepare similar lists for micro- and macroregions, mountain ranges etc. (e.g., Leniañski 1998; liwa 1998; Kiszka and Leniañski 1999)
In 1997, at the annual meeting, Polish lichenologists passed a resolution to make red lists for all regions of Poland distinguished as physical-geographic subprovinces according to Kondracki (1988, 1998)
In the second edition of our red list, we will be able to valuate lichen taxa according to the Red List Categories
Summary
Two subsequent editions of Polish red list of threatened lichens published recently (Cieliñski et al 1986, 1992) drew lichenologists attention of to a process of the extinction of lichen species and inspired them to prepare similar lists for micro- and macroregions, mountain ranges etc. (e.g., Leniañski 1998; liwa 1998; Kiszka and Leniañski 1999). In 1997, at the annual meeting, Polish lichenologists passed a resolution to make red lists for all regions of Poland distinguished as physical-geographic subprovinces according to Kondracki (1988, 1998). All these lists should have been published together in a one book edition. This plan has not been executed so far, but some results have been already achieved, among others presented regional red list of threatened lichens of Lower Silesia. Names of lichen species are quoted according to Santesson (1993) and Fa3tynowicz (1993)
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