Canadian Forest Service Publications
Lichens and Allied Fungi of Hall's Gullies: A Hotspot for Rare and Endangered Species in Newfoundland, Canada. 2019. McMullin, Richard Troy and Arsenault, André. Northeastern Naturalist, 26(4):729-748
Issued by: Atlantic Forestry Centre
Catalog ID: 40027
Available from the Journal's Web site. †
† This site may require a fee
Biodiversity hotspots are regions with high numbers of rare species that are conservation priorities. Hall's Gullies is a region on the Avalon Peninsula in Newfoundland, Canada, that is well known for a large population of Erioderma pedicellatum, a lichen that is listed globally as critically endangered by the International Union for Conservation of Nature. To determine if there are other species of conservation interest in this region, we completed a detailed survey of the lichens and allied fungi. We combined our results with historical collections and report 179 species in 86 genera, which include 18 cyanolichens and 20 calicioids. Three species are listed on the federal Species at Risk Act: Degelia plumbea, Erioderma mollissimum, and E. pedicellatum. Fifteen species discovered during our study were new to Newfoundland and Labrador. Eleven of those species (the calicioids) we reported in a previous publication, but 4 are reported here for the first time from the province: Abrothallus santessonii, Biatora chrysantha, Heterodermia neglecta, and Plectocarpon scrobiculatae. Hall's Gullies is a hotspot for rare lichen species, but it is not legally protected and, as a result, should be a conservation priority.