Long-Term Dynamics in Swiss Forest Reserves

Abstract

Students are analyzing case studies of long-term forest dynamics based on inventory datasets and their own experience in these forests. This week-long excursion illustrates concepts from classroom courses in the BSc (e.g., Waldökologie, Landschaftsökologie), deepens the knowledge of students, and sheds light on the potentials and limitations of long-term monitoring efforts.

Objective

Based on this course, students will… … develop a deep understanding of forest dynamics across a wide range of ecological conditions (lowland to high-elevation, wet to dry); … integrate, apply and deepen classroom knowledge on the natural processes that are shaping forest and landscape dynamics based on hands-on exercises; … learn how to connect detailed forest inventory data with their own experience of the respective forests.

Content

Switzerland harbors a unique network of reserves where forest development in the absence of management interventions is monitored scientifically since 30+ and up to 60+ years. This effort was begun in 1948 by ETH Professor Leibundgut and continues to date. We will take students to selected reserves of this network to evaluate and discuss the processes shaping long-term forest dynamics. The course takes place during a full week in early September, i.e. after the exam session and prior to the beginning of the fall semester. Program: 1st day: Tariche Bois Banal (JU): The subtle balance between beech and fir - who is winning? 2nd day: Follatères (VS): Living on the edge – how slow can forest dynamics be when moisture is the key limiting factor? Biodiversity implications 3rd day: Derborence (VS): A primeval fir-spruce forest due to two 18th century landslides? The role of wind disturbance in natural forest dynamics 4th day: Aletschwald (VS): Reforestation after the Little Ice Age or deterioration due to overabundance of deer? 5th day: Bödmerenwald (SZ): The largest primeval spruce forest of Europe?

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