Publications
Conservation of World Heritage glacial landscapes in a changing climate: The Swiss Alps Jungfrau-Aletsch case
Glacial landscapes, many of which are UNESCO World Heritage Sites, face significant threats from rapid glacier retreat due to climate change, potentially undermining their Outstanding Universal Value. A study focusing on the Swiss Alps Jungfrau-Aletsch property reveals that as glaciers shrink, the geoscientific value of these sites will increasingly depend on preserved glacial landforms like moraine ridges, rather than the glaciers themselves. This shift necessitates enhanced protection for these inherited features to maintain their historical and scientific significance. Additionally, the aesthetic appeal of such landscapes may diminish without glaciers, suggesting a transition from traditional glacier tourism to geotourism could help sustain both conservation efforts and public engagement with these evolving landscapes.
Glacier Movement Prediction through Computer Vision and Satellite Imagery
A novel approach using computer vision and high-resolution satellite imagery demonstrates high accuracy in predicting glacier movement, offering valuable insights into the evolution of ice coverage. Researchers applied a dense optical flow algorithm to time-series images of the Jungfrau-Aletsch-Bietschhorn (JAB) glacier in the Swiss Alps, successfully extracting motion vectors that closely matched observed values. This method, utilizing Normalized Difference Snow Index (NDSI), proves efficient for monitoring glacial changes, particularly under the increasing pressures of climate change. The study highlights the potential of satellite-based techniques to provide precise and timely data on glacier dynamics, aiding in broader environmental assessments.
The UNESCO World Heritage Swiss Alps Jungfrau-Aletsch – protecting the cultural landscape by preserving the traditional irrigation system in the Upper Valais
Traditional irrigation systems within the UNESCO World Heritage Swiss Alps Jungfrau-Aletsch (SAJA) are critical to maintaining biodiversity and cultural landscapes, yet they face decline due to agricultural changes. The Great Aletsch Glacier and iconic peaks of Eiger, Mönch, and Jungfrau form a unique natural and cultural landscape, but traditional irrigation techniques—essential for meadows and vineyards—are being replaced by modern sprinkler systems or abandoned. To address this, the project 'Preservation of Traditional Irrigation in the Upper Valais' identified at-risk areas and engaged local stakeholders to develop solutions. Proposed strategies include financial compensation, volunteer platforms, institutionalization, education, awareness campaigns, and the establishment of an Expert Commission for irrigation landscapes. These measures aim to safeguard both ecological diversity and cultural heritage in this high-altitude region.
Traditionelle Bewässerung – ein Kulturerbe mit Zukunft?
Traditional irrigation systems in the Swiss Alps Jungfrau-Aletsch have sustained water supply in arid valleys for centuries while shaping a culturally and ecologically rich landscape. These systems, characterized by communal management models, continue to serve as a blueprint for sustainable water use today. However, they face significant challenges that threaten their long-term viability. The study highlights the dual role of these irrigation practices—preserving biodiversity and historical architecture while adapting to modern demands. It underscores the need for innovative strategies to ensure the survival of this cultural heritage in the face of environmental pressures.
Hidden diversity in European bees: Andrena amieti sp. n., a new Alpine bee species related to Andrena bicolor (Fabricius, 1775) (Hymenoptera, Apoidea, Andrenidae)
A new Alpine bee species, Andrena amieti, has been identified within the UNESCO World Heritage Site 'Swiss Alps Jungfrau-Aletsch', revealing hidden diversity among European bees. Phylogenetic analysis of genetic and morphological data confirmed its distinct status alongside three other closely related species: A.montana and A.allosa. The study found that A.amieti is bivoltine, with spring and summer generations exhibiting different pollen host preferences—spring being polylectic while the summer generation favors Campanulaceae. Additionally, two divergent mitochondrial lineages coexist in sympatry within this species, suggesting potential cryptic diversity. The research also resurrected A.croatica as a valid species and elevated A.pileata to species rank, proposing that such hidden diversity may be widespread in southern European Andrena (Euandrena). An identification key for central European members of the subgenus Euandrena was provided.
First measurement of ice‐bedrock interface of alpine glaciers by cosmic muon radiography
Scientists have successfully applied cosmic muon radiography to map the bedrock topography beneath alpine glaciers for the first time, revealing critical insights into glacial erosion mechanisms. Using emulsion film detectors installed along the Jungfrau railway tunnel in the Swiss Alps, researchers measured the ice-bedrock interface under Aletsch Glacier, uncovering a NE-SW striking bedrock that dips at 45° ± 5°, extending up to 50 meters below the surface. This innovative approach, leveraging cosmic ray muons, offers unprecedented precision in studying glacial geology and promises to advance our understanding of how glaciers shape underlying landscapes.
Managing a World Heritage Site – Potentials and Limitations of Transdisciplinary Approaches
Transdisciplinary approaches offer significant potential for balancing conservation and economic development in UNESCO World Heritage Sites, but their effectiveness is threatened by inherent power dynamics. A study on the Swiss Alps Jungfrau-Aletsch World Heritage Site highlights that while such collaborative frameworks foster mutual learning among diverse stakeholders, the benefits are often undermined by power struggles within participatory processes. The research re-examines three key challenges in transdisciplinary settings: stakeholder integration, perceptions and positions, and negotiability and implementation, demonstrating both the promise and limitations of this method for sustainable management.
Sustainable regional development: Reconciling global and local dynamics and stakes in the Swiss Alps
Sustainable development in the Swiss Alps Jungfrau-Aletsch World Heritage Site (WHS) hinges on local and regional dynamics, not global or national frameworks. Research reveals that while tourism drives economic growth, achieving sustainability requires balancing diverse interests through quality dialogue. Unlike traditional political or administrative units, this WHS crosses boundaries, complicating governance. Studies using population data, employment indicators, and stakeholder interviews found that local solutions are essential, as broader policies often lack specificity. The global WHS label alone does not guarantee sustainability; success depends on tailored regional strategies.
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