Abstract Detail

The biology of rarity: Conservation of bryophytes and lichens

Bennett, James P. [2], Wetmore, Clifford M. [1].

Proposed list of extinct, rare and/or endangered marolichens in Wisconsin.

We propose that 41 species of macrolichens be listed for rare status in Wisconsin, along with 6 other species we think are now extinct in the state. Almost 60% of the species occur in the northern part of the state. Some of the extinct species occurred in the southern part. The rare and extinct species exist(ed) in 43% of the counties. None of the rare and extinct species are endemic to Wisconsin, and they represent 7% of the total lichen flora of the state. One species was last collected in 1884, but others were collected only recently. Forty-seven percent of the listed species are ranked critically imperiled (S1). Lichen species rarity appears correlated with road mileage and latitude.

1 - University of Minnesota, Plant Biological Sciences, 1445 Gortner Ave., St. Paul, Minnesota, 55108
2 - University of Wisconsin, Institute for Environmental Studies, 504 Walnut St, Madison, Wisconsin, 53726, USA

Keywords:
rare taxa
rare endemic
lichens.

Presentation Type: Symposium
Session: 7-7
Location: Ballroom 3 (Cliff Lodge)
Date: Monday, August 2nd, 2004
Time: 11:45 AM
Abstract ID:680