Hotade hökfibblor i södra sverige - En preliminär rödlista

Abstract

All (micro-)species of Hieracium sectt. bifida, Hieracium and Vulgata confined to the southern half of Sweden have been assessed in accordance with the IUCN criteria. Of the 406 assessed species, 311 (77%) were found to meet the Red List criteria whereas the remaining 95 species were found to be Least Concern. An additional 172 species were referred to the category Not Applicable since they were either considered to be insufficiently known taxonomically (including all species known from a single site only) or have been introduced to Sweden after the year 1800. The most important habitats for the species concerned are fertile and herb-rich old-growth Picea abies forests, traditionally managed or moderately overgrown wooded meadows, and open secondary deciduous forests surrounding old settlements. The first habitat is very rapidly declining due to intense industrial forestry and the latter two gradually disappear due to overgrowth and forest plantation and the expansion of gardens and towns. Only few species have been able to exploit and establish stable populations in new habitats along roads and other ecotones. The distribution and status of all species proposed for the Red List is both tabulated and commented upon. In addition, the extent and shortcomings of the existing data and the rationale for red-listing apomictic taxa are discussed.

Published in

Svensk Botanisk Tidskrift
2010, volume: 104, number: 4, pages: 227-273

SLU Authors

• Aronsson, Mora

  • SLU Swedish Species Information Centre, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Ecology

Permanent link to this page (URI)

https://res.slu.se/id/publ/132467