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1 December 2009 Habitat associations of macrolichens on a boreal island in the Bay of Fundy, New Brunswick, Canada
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Abstract
Compared to the mainland, boreal oceanic islands would be expected to have a depauperate lichen biota because of their isolation, small area, exposure to salt spray and structurally simple habitats. We surveyed the macrolichens (non-crustose lichens) and quantified habitat associations on Kent Island, an 80-hectare island that lies at the mouth of the Bay of Fundy, New Brunswick, Canada. A total of 43 species in 13 genera were identified, which represents 19% of the macrolichen species richness of Fundy National Park on the mainland coast of New Brunswick. Cyanolichens were not found on Kent Island. Nearly 75% of Kent Island's macrolichen species had boreal biogeographical affinities, despite the island's temperate latitude (44°35′N) and low elevation, due to the chilling influence of the locally upwelling Labrador Current. Multi-response Permutation Procedures and Indicator Species Analysis demonstrated non-random habitat associations among Kent Island's macrolichen species and moderate but significant differences in lichen communities among five forest types on the island.
Ekaphan Kraichak, Ralph Pope and Nathaniel T. Wheelwright "Habitat associations of macrolichens on a boreal island in the Bay of Fundy, New Brunswick, Canada," The Bryologist 112(4), (1 December 2009). https://doi.org/10.1639/0007-2745-112.4.762
Received: 4 December 2008; Accepted: 1 April 2009; Published: 1 December 2009
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