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The use of antibiotics is not permitted in Switzerland; moreover, no other medication exists to combat European foul brood. Hives with symptoms must therefore be destroyed in order to limit the outbreak, and the contaminated material must be sanitised. Since prevention is the best cure, early detection is desirable. Numerous studies have been undertaken and documents have been created at the Swiss Bee Research Centre and elsewhere to draw the attention of beekeepers to these problems and inform them about the causes and the control measures to be implemented.

Merkblatt zur erkennung von Bienenbrutkrankheiten (German (PDF, 357 kB, 18.10.2017) and French (PDF, 226 kB, 02.02.2017))
M. Tschumi (2011)

Wolves' contribution to structural change in grazing systems among swiss alpine summer farms: The evidence from causal random forest.

Institutional Repository Agroscope

Mink S., Loginova D., Mann S.

Wolves' contribution to structural change in grazing systems among swiss alpine summer farms: The evidence from causal random forest.

Journal of Agricultural Economics, 75, (1), 2024, 201-217.

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Résumé:

The return of wolves to Swiss mountains and the damage they cause to sheep and goat herds in the region have raised concerns about a consequent wave of farm closures. In this paper, we examine the relationship between wolf attacks and the decline of Alpine summer farms, a specific high-altitude farm type. We collected farm structure data and monitoring data on wolf attacks between 2004 and 2021 and analysed them using a causal random forest method, enabling a detailed analysis of the relation between wolf attacks and the number of different types of Alpine summer farms at a regional level. The results show that the farming systems are unaffected by incidental and infrequent wolf attacks, but that a high number of wolf attacks in a region is related to faster decrease in number of grazing systems where sheep are most vulnerable to such attacks. In contrast, systems that allow for better herd protection tend to show an increase in areas with frequent wolf attacks.

ISSN Print 0021-857X
ISSN en ligne: 1477-9552
Digital Object Identifier (DOI): https://doi.org/10.1111/1477-9552.12540
ID publication (Code web): 53839 Envoyer par e-mail

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Wolves' contribution to structural change in grazing systems among swiss alpine summer farms: The evidence from causal random forest.