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Bibliothèque cantonale jurassienne

Stratigraphie du Jurassique supérieur : coupes et analyses

Lefort, Apolline

Porrentruy : Office de la culture, Paléontologie A16, 2018

(Catalogues du patrimoine paléontologique jurassien - A16)

ISBN: 9782884360517

Université de Fribourg

Decadal evolution of a very small heavily debris-covered glacier in an Alpine permafrost environment

Capt, M. ; Bosson, Jean-Baptiste ; Fischer, M. ; Micheletti, N. ; Lambiel, Christophe

In: Journal of Glaciology, 2016, vol. 62, no. 233, p. 535–551

Glacier response to climate forcing can be heterogeneous and complex, depending on glacier system characteristics. This article presents the decadal evolution of the Tsarmine Glacier (Swiss Alps), a very small and heavily debris-covered cirque glacier located in the Alpine periglacial belt. Archival aerial photogrammetry and autocorrelation of orthophotos were used to compute surface...

Université de Fribourg

Geomorphology of the Hérens valley (Swiss Alps)

Lambiel, Christophe ; Maillard, Benoît ; Kummert, Mario ; Reynard, Emmanuel

In: Journal of Maps, 2016, vol. 12, no. 1, p. 160–172

This paper presents a geomorphological map of the Hérens valley in the Western Swiss Alps. With an area of 270 km2 and altitudes ranging from 470 to 4357 m a.s.l., this valley is one of the main secondary catchments of the Upper Rhône valley. The high differences in altitudes, combined with a varied geology, create an important geomorphic diversity. The main processes active in mountain...

Université de Fribourg

The response of the alpine dwarf shrub Salix herbacea to altered snowmelt timing: lessons from a multi-site transplant experiment

Sedlacek, Janosch ; Wheeler, Julia A. ; Cortés, Andrés J. ; Bossdorf, Oliver ; Hoch, Guenter ; Lexer, Christian ; Wipf, Sonja ; Karrenberg, Sophie ; Kleunen, Mark van ; Rixen, Christian

In: PLoS ONE, 2015, vol. 10, no. 4, p. e0122395

Climate change is altering spring snowmelt patterns in alpine and arctic ecosystems, and these changes may alter plant phenology, growth and reproduction. To predict how alpine plants respond to shifts in snowmelt timing, we need to understand trait plasticity, its effects on growth and reproduction, and the degree to which plants experience a home-site advantage. We tested how the common,...

Université de Fribourg

Small-scale patterns in snowmelt timing affect gene flow and the distribution of genetic diversity in the alpine dwarf shrub Salix herbacea

Cortés, Andres J. ; Waeber, Stephan ; Lexer, Christian ; Sedlacek, J. ; Wheeler, J. A. ; Kleunen, Mark van ; Bossdorf, O. ; Hoch, G. ; Rixen, C. ; Wipf, S . ; Karrenberg, S.

In: Heredity, 2014, p. -

Current threats to biodiversity, such as climate change, are thought to alter the within-species genetic diversity among microhabitats in highly heterogeneous alpine environments. Assessing the spatial organization and dynamics of genetic diversity within species can help to predict the responses of organisms to environmental change. In this study, we evaluated whether small-scale heterogeneity...