Czerwona lista porostów zagrożonych w Gorcach [Red List of threatened lichens in Gorce Mts.]

Abstract

The first regional list of threatened lichens and allied fungi is presented. The list is a result of investigation studies in the Gorce Mts. (Beskidy Zachodnie range in Karpaty Zachodnie range). The status of threat to the lichen and allied fungi species used has been determined according to the IUCN Red List Categories in version 3.1 (2001). The data obtained were compared with historical ones. Changes of the species main frequency were used as an additional indicator of their threat status. The Red List includes 367 taxa of lichens, lichenicolous and saprobic fungi, which constitute ca 67% of the Gorce Mts. total lichen biota and 22.9% of Polish biota. The status of threatened biota has the following categories: Regionally Extinct (RE) - 83 taxa, Critically Endangered (CR) - 61, En-dangered (EN) - 49, Vulnerable (VU) - 50, Near Threatened (NT) - 23, Least Concern (LC) -11 and Data Deficient (DD) - 90. The most threatened are obligatory forest epiphytes growing almost exclusively on old spruce Picea abies and beech Fagus sylvatica trees.