Otto Hegg

Calcium Induces Long-Term Legacy Effects in a Subalpine Ecosystem

Urs Schaffner, Christine Alewell, René Eschen, Diethart Matthies et autres

Human activities have transformed a significant proportion of the world's land surface, with profound effects on ecosystem processes. Soil applications of macronutrients such as nitrate, phosphorus, potassium or calcium are routinely used in the management of croplands, grasslands and forests to improve …

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80 Jahre experimentelle Ökosystemforschung auf der Schynigen Platte im Berner Oberland

Otto Hegg, Urs Schaffner

This book provides the first comprehensive overview of the longest running experiments conducted on subalpine grasslands in Europe, and perhaps the world. In 1927, the ‘Alpengarten’ (alpine garden) was opened at the Schynige Platte, Bernese Oberland, 2000 m above sea level. One …

Effets à long-terme du chaulage sur le sol et la végétation des pâturages subalpines

Thomas Spiegelberger, Otto Hegg, Urs Schaffner

Theoretical advances and short-term experimental studies have furthered our\nunderstanding of how ecosystems respond to perturbation. However, there are few wellreplicated experimental studies that allow an assessment of long-term responses. Results from a controlled, large-scale field experiment in a subalpine grassland near Interlaken, …

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Flora indicativa: Okologische Zeigerwerte und biologische Kennzeichen zur Flora der Schweiz und der Alpen

Elias Landolt, Beat Bäumler, A Ehrhardt, Otto Hegg et autres

Die «Flora indicativa» umfasst die ökologischen und biologischen Eigenschaften von 5500 Pflanzenarten aus der Schweiz und den Alpen und charakterisiert in Tabellenform die einzelnen Arten. Als wertvolle Dokumentation zur Ökologie und Biologie der Pflanzenarten in Mitteleuropa ist die «Flora indicativa» ein wesentliches …

Flora indicativa = Ecological inicator values and biological attributes of the flora of Switzerland and the Alps : ökologische Zeigerwerte und biologische Kennzeichen zur Flora der Schweiz und der Alpen

Elias Landolt, Beat Bäumler, Andreas Erhardt, Otto Hegg et autres

Flora indicativa. Ökologische Zeigerwerte und biologische Kennzeichen zur Flora der Schweiz und der Alpen. Ecological indicators values and biological attributes of the flora of Switzerland and the Alps

Elias Landolt, Beat Bäumler, Andreas Erhardt, Otto Hegg et autres

The Flora indicativa comprises ecological and biological traits of 5500 plant species an nearly 1000 aggregates of closely related species of Switzerland and surroundings as well as of the whole Alps. The characters of each species are put together in tabular form. …

Low impact of climate change on subalpine grasslands in the Swiss Northern Alps

Pascal Vittoz, Christophe F. Randin, Annelise. Dutoit, François Bonnet et autres

Abstract While phenological shifts and migration of isolated species under climate change have already been observed on alpine summits, very few studies have focused on community composition changes in subalpine grasslands. Here we use permanent plots monitored since 1954 and precisely located …

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Does ecosystem size determine aquatic bacteria richness? Reply

Isabel Reche, J.C. Meyran, Antoine Lecerf, Graham E. Forrester et autres

With the advent of DNA-based molecular technologies, microbial ecologists now have the tools to test whether general ecological patterns apply to microorganisms. In this study, we selected 11 high-mountain lakes from Sierra Nevada (Spain) to test the predictions of island-biogeography theory in …

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LONG-TERM EFFECTS OF SHORT-TERM PERTURBATION IN A SUBALPINE GRASSLAND

Thomas Spiegelberger, Otto Hegg, Diethart Matthies, Katarina Hedlund et autres

Theoretical advances and short-term experimental studies have furthered our understanding of how ecosystems respond to perturbation. However, there are few well-replicated experimental studies that allow an assessment of long-term responses. Results from a controlled, large-scale field experiment in a subalpine grassland near …

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HOW MANY ASSOCIATIONS DOE S A PHYTOSOCIOLOGIST NEED?

Otto Hegg, J. Brun-Hool

The two concepts “continuum of the vegetation” and “plant communities” are not taken as opposite here, but as related together. Even by accepting the continuum concept, it is possible and useful to define plant communities and to give them names in order …

Geschichte des Botanischen Gartens Bern von 1789 bis 1996

Otto Hegg

Atlas schutzwürdiger Vegetationstypen der Schweiz

Otto Hegg, Claude Béguin, Heinrich Zoller