Welsh Lichen Red List - Lichens of Wales
Welsh Lichen Red List - Lichens of Wales
Welsh Lichen Red List - Lichens of Wales
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A <strong>Lichen</strong> <strong>Red</strong> Data <strong>List</strong> for <strong>Wales</strong><br />
24<br />
7.5 Taxa reaching the edge <strong>of</strong> their range<br />
in <strong>Wales</strong><br />
Many taxa reach the northern or southern edges <strong>of</strong> their British ranges in <strong>Wales</strong> (Tables 6<br />
& 7). It is becoming increasingly important to identify such species in order to select<br />
priorities for conservation and for monitoring the impacts <strong>of</strong> climate change. Small,<br />
edge-<strong>of</strong>-range populations <strong>of</strong> species that might be vulnerable to change are particularly<br />
important, as they may be genetically distinct.<br />
Of species at the northernmost edge <strong>of</strong> their range in <strong>Wales</strong> listed in Table 6,<br />
Parmelinopsis minarum and Parmelina carporrhizans may both have shown a genuine<br />
northerly extension to their ranges in recent years. Perhaps <strong>of</strong> greater conservation<br />
concern are the larger numbers <strong>of</strong> montane and sub-montane species that occur in tiny<br />
populations at the southernmost edge <strong>of</strong> their range in <strong>Wales</strong> and comprise a large<br />
element <strong>of</strong> Table 7. They may be particularly vulnerable to a warming climate.<br />
Taxon <strong>Wales</strong> <strong>Red</strong><br />
<strong>List</strong><br />
Arthonia astroidestera NT<br />
Arthonia atlantica NT<br />
Blarneya hibernica CR<br />
Byssoloma subdiscordans EN<br />
Heterodermia leucomela VU<br />
Lecanora ochroidea LC<br />
Melaspilea amota [F] DD<br />
Opegrapha prosodea VU<br />
Parmelina carporrhizans VU<br />
Parmelinopsis horrescens NT<br />
Parmelinopsis minarum VU<br />
Parmotrema robustum CR<br />
Pertusaria velata VU<br />
Phaeographis inusta LC<br />
Porina curnowii VU<br />
Protoparmelia montagnei VU<br />
Rinodina biloculata VU<br />
Roccella fuciformis NT<br />
Roccella phycopsis NT<br />
Syncesia myrticola VU<br />
Teloschistes flavicans VU<br />
Table 6. Taxa that reach the northern edge <strong>of</strong> their British distribution in <strong>Wales</strong>.
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