Date of Award
Fall 12-16-2017
Semester of Degree
December
Document Type
Open Access Thesis
Degree Name
M.S. in Environmental and Forest Biology
Department
Environmental and Forest Biology
Major Professor
Danilo Fernando
Steering Committee Member
Thomas Hughes
Steering Committee Member
Donald Leopold
Steering Committee Member
Robin Kimmerer
Abstract
This study analyzed biological and microclimatic factors affecting the post-reintroduction survival and growth of laboratory-propagated American hart’s-tongue ferns (Asplenium scolopendrium var. americanum, AHTF), a rare and threatened fern species with a fragmented distribution across the eastern United States and Canada. In total, 1,925 AHTF transplants, representing four life history stages (protonemata, gametophytes, sporelings, and immature sporophytes) were reintroduced into three sites determined to be ideal habitats within Onondaga County, New York. Factors that resulted in higher rates of survival included more rigorous acclimatization of transplants, better transplant vigor at the time of transplanting, and higher humidity at reintroduction sites. Analysis of wind speed and direction provided implications of low spore dispersal, and therefore low gene flow, between extant AHTF populations. Insights from this research contribute to a growing, yet still understudied, body of knowledge regarding fern species reintroductions and inform best practices for future AHTF reintroductions.
Recommended Citation
Serviss, Michael, "Experimental Reintroduction of American Hart’s-Tongue Fern (Asplenium scolopendrium var. americanum): Factors Affecting Successful Establishment of Transplants" (2017). Dissertations and Theses. 9.
https://digitalcommons.esf.edu/etds/9