Conservation genetics of a mirrored population of the european tree frog (Hyla arborea)

Oswald P, Taddey K, Auffarth J, Brandt T, Pröhl H (2017)
Salamandra 53(3): 368-378.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Oswald, PiaUniBi ; Taddey, Konstantin; Auffarth, Jana; Brandt, Thomas; Pröhl, Heike
Abstract / Bemerkung
Population decline and local extinction of amphibian populations have increased in the last decades. The European tree frog (Hyla arborea) is particularly endangered in its northern distribution range. One of the suggested conservation strategies for threatened amphibians is resettlement. The Ökologische Schutzstation Steinhuder Meer e.V. (ÖSSM) started a resettlement project in 2008 for the European tree frog in Lower Saxony and North Rhine-Westphalia, Germany. Hereby, individuals were translocated from a donor population to a location approximately 40 km distant, establishing a mirrored population. The objective of this study was to monitor genetic diversity of these two populations and genetic exchange with a nearby located population at Lake Steinhuder Meer. Therefore, a total of 91 individuals were analysed at 12 species-specific nuclear markers (microsatellite loci). The genetic diversities of the three populations were almost similar but the mirrored population (He = 0.66) exhibited a small reduction compared to its donor population (He = 0.72). Significant indications for a recent bottleneck were detected for the donor and mirrored population. However, the mirrored population seems to have recovered from founder effects, since the actual number of calling males surveyed at this site since establishment reveals a stable and steadily growing population. FST values and Dest values showed significant differentiation between all sites with a global FST of 0.08. Likewise, results of a Bayesian clustering analysis indicated the existence of three genetic clusters. The software Geneclass2 assigned nearly half of the individuals of the mirrored population to its source population. Furthermore, the analysis suggested recent migration between the mirrored population and Lake Steinhuder Meer. Compared to other Hyla populations the genetic diversity was high at all localities and population sizes seem to have increased. We conclude from our study that resettlement projects can be efficient measures to counteract amphibian population decline when supported by population genetic analyses. © 2017 Deutsche Gesellschaft für Herpetologie und Terrarienkunde e.V. (DGHT), Mannheim, Germany.
Erscheinungsjahr
2017
Zeitschriftentitel
Salamandra
Band
53
Ausgabe
3
Seite(n)
368-378
ISSN
0036-3375
Page URI
https://pub.uni-bielefeld.de/record/2960904

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Oswald P, Taddey K, Auffarth J, Brandt T, Pröhl H. Conservation genetics of a mirrored population of the european tree frog (Hyla arborea). Salamandra. 2017;53(3):368-378.
Oswald, P., Taddey, K., Auffarth, J., Brandt, T., & Pröhl, H. (2017). Conservation genetics of a mirrored population of the european tree frog (Hyla arborea). Salamandra, 53(3), 368-378.
Oswald, P., Taddey, K., Auffarth, J., Brandt, T., and Pröhl, H. (2017). Conservation genetics of a mirrored population of the european tree frog (Hyla arborea). Salamandra 53, 368-378.
Oswald, P., et al., 2017. Conservation genetics of a mirrored population of the european tree frog (Hyla arborea). Salamandra, 53(3), p 368-378.
P. Oswald, et al., “Conservation genetics of a mirrored population of the european tree frog (Hyla arborea)”, Salamandra, vol. 53, 2017, pp. 368-378.
Oswald, P., Taddey, K., Auffarth, J., Brandt, T., Pröhl, H.: Conservation genetics of a mirrored population of the european tree frog (Hyla arborea). Salamandra. 53, 368-378 (2017).
Oswald, Pia, Taddey, Konstantin, Auffarth, Jana, Brandt, Thomas, and Pröhl, Heike. “Conservation genetics of a mirrored population of the european tree frog (Hyla arborea)”. Salamandra 53.3 (2017): 368-378.
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