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Abstract Detail

Bryology and Lichenology

Allen, Jessica [1].

Testing lichen transplant methods for conservation applications in the southern Appalachian Mountains, North Carolina.

Three experiments were conducted to test new and established methods for lichen transplantation. First, small fragments of Graphis sterlingiana, Hypotrachyna virginica, and Lepraria lanata were placed on medical gauze attached to each of the species most common substrate to test the feasibility of transplanting narrowly endemic species. Second, burlap, cheesecloth, medical gauze, and a plastic air filter were directly compared for their use as artificial transplant substrates with Lepraria finkii as the test lichen. Third, transplants of Usnea angulata were established to test its amenability to transplantation via hanging fragments on monofilament. The first two experiments were established on Roan Mountain, North Carolina and the third experiment at Highlands Biological Station, North Carolina. In the first two experiments medical gauze did not withstand local weather conditions and nearly all gauze fell from the trees within 6 months. The plastic air filter and burlap performed best as artificial substrates for transplants, with a 100% and 80% success rate, respectively. Cheesecloth remained attached to the trees, but only 20% of lichen fragments remained attached to the substrate after one year. In the third experiment U. angulata grew 3.5±1.4 cm in 5 months, exceeding previously reported growth rates for this species. These results advance methods for conservation-focused lichen transplants, and expand established methods to a new region and new species.

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1 - The New York Botanical Garden, 2900 Southern Boulevard, Bronx, NY, 10458, USA

Assisted Migration.

Presentation Type: Oral Paper
Session: 5, Bryology and Lichenology (ABLS) I
Location: Sundance 2/Omni Hotel
Date: Monday, June 26th, 2017
Time: 10:15 AM
Number: 5005
Abstract ID:146
Candidate for Awards:None

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