Conservation of the Rare Florida Henry's Spider Lily (Hymenocallis henryae) Using Genomic Analysis
2022
Online
Hochschulschrift
Conservation biologists recognize that maintaining genetic diversity, which facilitates adaptive responses, is key to the persistence of populations. Hymenocallis henryae is a rare, charismatic perennial endemic to the Florida panhandle that is currently under petition for listing under the Endangered Species Act and has undescribed genetic diversity. An understanding of the genetic structure of H. henryae populations is crucial to informing listing decisions. Therefore, we conducted field observations and genomic analyses of 279 individuals from 19 populations within the species range of the Florida panhandle. We found high amounts of genetic similarity and lack of population structure across the species range which is characteristic of a panmictic species. Through clonal analysis we found clonal reproduction was limited to small clumps of individuals fused at basal bulbs. These results suggest a uniform population structure, population persistence, high representation across its range, and evidence of resilience to most changes and threats ensuring its long-term persistence. Nonetheless, transplanting and seed banking is recommended for ex and in situ conservation to preserve genetic signature of the coastal individuals and populations most at risk of sea level rise which, from a conservation perspective, are at most risk to extirpation because of habitat loss.
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Conservation of the Rare Florida Henry's Spider Lily (Hymenocallis henryae) Using Genomic Analysis
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Autor/in / Beteiligte Person: | Vogel, Maria Therese |
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Veröffentlichung: | 2022 |
Medientyp: | Hochschulschrift |
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