Kaulfuss, Franziska and Reisch, Christoph (2017) Reintroduction of the endangered and endemic plant species Cochlearia bavaricaImplications from conservation genetics. ECOLOGY AND EVOLUTION, 7 (24). pp. 11100-11112. ISSN 2045-7758,
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Population reintroduction is a common practice in conservation, but often fails, also due to the effects of inbreeding or outbreeding depression. Cochlearia bavarica is a strongly endangered plant species endemic to Bavaria in Germany, constantly declining since the late 1980s. Therefore, population reintroduction is intended. In this study, we analyzed genetic diversity within and genetic differentiation between all 32 remnant populations of the species in Swabia and Upper Bavaria using amplified fragment length polymorphisms. Our aim was to increase reintroduction success by providing data to avoid negative effects of inbreeding and outbreeding and to preserve the natural genetic pattern of the species. Genetic diversity within populations was low but similar to other rare and endemic species and varied strongly between populations but did not depend on population size. Our analysis revealed a strong geographic pattern of genetic variation. Genetic differentiation was strongest between Swabia and Upper Bavaria and at the population level, whereas differentiation between subpopulations was comparatively low. Isolation by distance and genetic differentiation was stronger among populations from Upper Bavaria than from Swabia. From the results of our study, we derived recommendations for a successful reintroduction of the species. We suggest using rather genetically variable than large populations as reintroduction sources. Moreover, the exchange of plant material between Swabia and Upper Bavaria should be completely avoided. Within these regions, plant material from genetically similar populations should preferably be used for reintroduction, whereas the exchange among subpopulations seems to be possible without a negative impact on genetic variation due to natural gene flow.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MULTILOCUS GENOTYPE DATA; SUBSHRUB LOTUS-SCOPARIUS; MAUNA-KEA SILVERSWORD; LIFE-HISTORY TRAITS; POPULATION-SIZE; LOCAL ADAPTATION; LAND-USE; HABITAT FRAGMENTATION; REPRODUCTIVE SUCCESS; SANDWICENSE ASTERACEAE; conservation; genetic variation; inbreeding; outbreeding; reinforcement; reintroduction |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:18 |
| Last Modified: | 13 Feb 2019 12:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1728 |
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