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Université de Fribourg

Analysis of nuclear microsatellites reveals limited differentiation between Colchic and Hyrcanian populations of the wind-pollinated relict tree Zelkova carpinifolia (Ulmaceae)

Maharramova, Elmira H. ; Safarov, Hajiaga M. ; Kozlowski, Gregor ; Borsch, Thomas ; Muller, Ludo A.

In: American Journal of Botany, 2015, vol. 102, no. 1, p. 119–128

Premise of the study: The Caucasus represents one of the world’s biodiversity hotspots and includes the climatic refugia Hyrcan on the southern coast of the Caspian Sea and Colchis on the eastern coast of the Black Sea, where different species survived during the Quaternary climatic oscillations. We evaluated the genetic diversity of the relict tree Zelkova carpinifolia shared between the two...

Université de Fribourg

Integrating the ‘genomic mosaic’ view of species into studies of biotic interactions: a comment on Bernhardsson et al. (2013)

Lexer, Christian ; Caseys, Celine ; Stritt, Christoph ; Whitham, Thomas G.

In: Ecology Letters, 2013, vol. 16, no. 12, p. 1515–e7

The co-occurrence of geographical structure in herbivore communities, metabolomes and defence genes in forest trees has been analysed in the context of ‘geographical mosaics’ of coevolution. A deeper understanding of these important issues will require full integration of a ‘genomic mosaic’ view of species into community ecology.

Université de Fribourg

‘Next generation’ biogeography: towards understanding the drivers of species diversification and persistence

Lexer, Christian ; Mangili, Sofia ; Bossolini, Eligio ; Forest, Felix ; Stölting, Kai N. ; Pearman, Peter B. ; Zimmermann, Niklaus E. ; Salamin, Nicolas

In: Journal of Biogeography, 2013, p. -

The drivers of species diversification and persistence are of great interest to current biogeography, especially in those global biodiversity ‘hotspots’ harbouring most of Earth's animal and plant life. Classical multispecies biogeographical work has yielded fascinating insights into broad-scale patterns of diversification, and DNA-based intraspecific phylogeographical studies have started to...

Université de Fribourg

Phylogeography and genetic differentiation along the distributional range of the orchid Epidendrum fulgens: a Neotropical coastal species not restricted to glacial refugia

Pinheiro, Fábio ; Barros, Fábio De ; Palma-Silva, Clarisse ; Fay, Michael F. ; Lexer, Christian ; Cozzolino, Salvatore

In: Journal of Biogeography, 2011, vol. 38, no. 10, p. 1923–1935

Aim Phylogeographical studies in the Brazilian Atlantic Forest (BAF) have mostly included species associated with forest habitats, whereas taxa associated with grassland and sand-dune plant communities have so far been largely overlooked. This study examines the phylogeography of the orchid Epidendrum fulgens, which occurs on coastal sand dunes and granitic outcrops, in order to identify major...