This page has only limited features, please log in for full access.

Unclaimed
Sibylle Stöckli
Research Institute of Organic Agriculture (FiBL), CH-5070 Frick, Switzerland

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 18 May 2021 in Sustainability
Reads 0
Downloads 0

An ongoing decrease in habitat and species diversity is occurring in many areas across Europe, including in grasslands in mountain areas, calling for adapted biodiversity management and measures. In this context, we carried out 79 interviews with grassland farmers in five alpine mountain regions in Germany, France, Austria, Italy, and Switzerland. We analyzed farmers’ perceptions about the functions and services of their grasslands, how they qualify “good” grasslands, which grassland management practices have changed over the last 10 years, and proposals to increase species diversity on the farm. They related them primarily to cultural ecosystem services, secondly to provisioning services, and thirdly to regulating and supporting services. Good pastures or meadows were mostly related to composition, quality of forage and productivity, structural criteria, and certain characteristics of soils and topography. The measures for increasing biodiversity that were most frequently proposed were upgrading of forest edges, planting hedges or fruit trees, less or late grassland cutting, reduction or omission of fertilization, and more general extensification of farm productions. Factors hindering the implementation of these measures were mainly increased workload, insufficient time, and a lack of financial means or support to cover additional costs for biodiversity management. These factors have to be taken specifically into account for future policies for enhanced biodiversity management of grasslands, also beyond mountainous areas. Overall, we found that farmers have good but varying knowledge about biodiversity management of their grasslands, but also different perspectives on how to improve it. Here, local initiatives that bring together farmers and flora or fauna specialists to exchange knowledge could be designed and used in participatory pilot schemes to enhance the implementation of improved biodiversity management.

ACS Style

Alexander Wezel; Sibylle Stöckli; Erich Tasser; Heike Nitsch; Audrey Vincent. Good Pastures, Good Meadows: Mountain Farmers’ Assessment, Perceptions on Ecosystem Services, and Proposals for Biodiversity Management. Sustainability 2021, 13, 5609 .

AMA Style

Alexander Wezel, Sibylle Stöckli, Erich Tasser, Heike Nitsch, Audrey Vincent. Good Pastures, Good Meadows: Mountain Farmers’ Assessment, Perceptions on Ecosystem Services, and Proposals for Biodiversity Management. Sustainability. 2021; 13 (10):5609.

Chicago/Turabian Style

Alexander Wezel; Sibylle Stöckli; Erich Tasser; Heike Nitsch; Audrey Vincent. 2021. "Good Pastures, Good Meadows: Mountain Farmers’ Assessment, Perceptions on Ecosystem Services, and Proposals for Biodiversity Management." Sustainability 13, no. 10: 5609.

Original paper
Published: 28 August 2020 in International Journal of Biometeorology
Reads 0
Downloads 0

Climate change can alter the habitat suitability of invasive species and promote their establishment. The highly polyphagous brown marmorated stinkbug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), is native to East Asia and invasive in Europe and North America, damaging a wide variety of fruit and vegetable crops. In Switzerland, crop damage and increasing populations have been observed since 2017 and related to increasing temperatures. We studied the climatic suitability, population growth, and the number of generations under present and future climate conditions for H. halys in Switzerland, using a modified version of the bioclimatic model package CLIMEX. To address the high topographic variability in Switzerland, model simulations were based on climate data of high spatial resolution (approx. 2 km), which significantly increased their explanatory power, and identified many more climatically suitable areas in comparison to previous models. The validation of the CLIMEX model using observational records collected in a citizen science initiative between 2004 and 2019 revealed that more than 15 years after its accidental introduction, H. halys has colonised nearly all bioclimatic suitable areas in Switzerland and there is limited potential for range expansion into new areas under present climate conditions. Simulations with climate change scenarios suggest an extensive range expansion into higher altitudes, an increase in generations per year, an earlier start of H. halys activity in spring and a prolonged period for nymphs to complete development in autumn. A permanent shift from one to two generations per year and the associated population growth of H. halys may result in increasing crop damages in Switzerland. These results highlight the need for monitoring the spread and population development in the north-western part of Switzerland and higher altitudes of the valleys of the south.

ACS Style

Sibylle Stoeckli; Raphael Felber; Tim Haye. Current distribution and voltinism of the brown marmorated stink bug, Halyomorpha halys, in Switzerland and its response to climate change using a high-resolution CLIMEX model. International Journal of Biometeorology 2020, 64, 2019 -2032.

AMA Style

Sibylle Stoeckli, Raphael Felber, Tim Haye. Current distribution and voltinism of the brown marmorated stink bug, Halyomorpha halys, in Switzerland and its response to climate change using a high-resolution CLIMEX model. International Journal of Biometeorology. 2020; 64 (12):2019-2032.

Chicago/Turabian Style

Sibylle Stoeckli; Raphael Felber; Tim Haye. 2020. "Current distribution and voltinism of the brown marmorated stink bug, Halyomorpha halys, in Switzerland and its response to climate change using a high-resolution CLIMEX model." International Journal of Biometeorology 64, no. 12: 2019-2032.

Journal article
Published: 27 February 2020 in BMC Ecology
Reads 0
Downloads 0

Background A long-term experiment at two trial sites in Kenya has been on-going since 2007 to assess the effect of organic and conventional farming systems on productivity, profitability and sustainability. During these trials the presence of significant numbers of termites (Isoptera) was observed. Termites are major soil macrofauna and within literature they are either depict as ‘pests’ or as important indicator for environmental sustainability. The extent by which termites may be managed to avoid crop damage, but improve sustainability of farming systems is worthwhile to understand. Therefore, a study on termites was added to the long-term experiments in Kenya. The objectives of the study were to quantify the effect of organic (Org) and conventional (Conv) farming systems at two input levels (low and high) on the abundance, incidence, diversity and foraging activities of termites. Results The results showed higher termite abundance, incidence, activity and diversity in Org-High compared to Conv-High, Conv-Low and Org-Low. However, the termite presence in each system was also dependent on soil depth, trial site and cropping season. During the experiment, nine different termite genera were identified, that belong to three subfamilies: (i) Macrotermitinae (genera: Allodontotermes, Ancistrotermes, Macrotermes, Microtermes, Odontotermes and Pseudocanthotermes), (ii) Termitinae (Amitermes and Cubitermes) and (iii) Nasutitiermitinae (Trinervitermes). Conclusions We hypothesize that the presence of termites within the different farming systems might be influenced by the types of input applied, the soil moisture content and the occurrence of natural enemies. Our findings further demonstrate that the organic high input system attracts termites, which are an important, and often beneficial, component of soil fauna. This further increases the potential of such systems in enhancing sustainable agricultural production in Kenya.

ACS Style

John J. Anyango; David Bautze; Komi K. M. Fiaboe; Zipporah O. Lagat; Anne W. Muriuki; Sibylle Stöckli; Judith Riedel; Gladys K. Onyambu; Martha W. Musyoka; Edward N. Karanja; Noah Adamtey. The impact of conventional and organic farming on soil biodiversity conservation: a case study on termites in the long-term farming systems comparison trials in Kenya. BMC Ecology 2020, 20, 1 -14.

AMA Style

John J. Anyango, David Bautze, Komi K. M. Fiaboe, Zipporah O. Lagat, Anne W. Muriuki, Sibylle Stöckli, Judith Riedel, Gladys K. Onyambu, Martha W. Musyoka, Edward N. Karanja, Noah Adamtey. The impact of conventional and organic farming on soil biodiversity conservation: a case study on termites in the long-term farming systems comparison trials in Kenya. BMC Ecology. 2020; 20 (1):1-14.

Chicago/Turabian Style

John J. Anyango; David Bautze; Komi K. M. Fiaboe; Zipporah O. Lagat; Anne W. Muriuki; Sibylle Stöckli; Judith Riedel; Gladys K. Onyambu; Martha W. Musyoka; Edward N. Karanja; Noah Adamtey. 2020. "The impact of conventional and organic farming on soil biodiversity conservation: a case study on termites in the long-term farming systems comparison trials in Kenya." BMC Ecology 20, no. 1: 1-14.

Communication
Published: 22 October 2019 in Insects
Reads 0
Downloads 0

Termite-induced injuries to maize and baby corn were evaluated in on-going comparison experiments on organic and conventional farming systems at two trial sites in the Central Highlands of Kenya (Chuka and Thika). The farming systems were established in 2007 at two input levels: Low input level, representing subsistence farming (Conv-Low, Org-Low) and high input level, representing commercial farming (Conv-High, Org-High). Termite-induced injuries to maize and baby corn, such as tunneling the stem or lodging the whole plant were assessed over two cropping seasons. The lodging occurred exclusively at Thika. It first became apparent in the Org-Low system, with most of lodging occurring during the vegetative stage. Baby corn grown under high input systems showed increasing lodging from the late vegetative crop stage and peaked before the final harvest. Tunneling was recorded at both sites, but was generally below 5%, with no significant differences between the farming systems. Overall, the injury patterns caused by termites appear to be a function of the plant growth stage, termite colony activities, trial site, and the types and levels of fertilizer input. Thus, the management practice used in each farming system (organic or conventional) might have greater influence on crop injuries than the type of farming system itself or the termite abundance within each system.

ACS Style

John J. Anyango; David Bautze; Komi K. M. Fiaboe; Zipporah O. Lagat; Anne W. Muriuki; Sibylle Stöckli; Gladys K. Onyambu; Martha W. Musyoka; Edward N. Karanja; Noah Adamtey. Termite-Induced Injuries to Maize and Baby Corn under Organic and Conventional Farming Systems in the Central Highlands of Kenya. Insects 2019, 10, 367 .

AMA Style

John J. Anyango, David Bautze, Komi K. M. Fiaboe, Zipporah O. Lagat, Anne W. Muriuki, Sibylle Stöckli, Gladys K. Onyambu, Martha W. Musyoka, Edward N. Karanja, Noah Adamtey. Termite-Induced Injuries to Maize and Baby Corn under Organic and Conventional Farming Systems in the Central Highlands of Kenya. Insects. 2019; 10 (10):367.

Chicago/Turabian Style

John J. Anyango; David Bautze; Komi K. M. Fiaboe; Zipporah O. Lagat; Anne W. Muriuki; Sibylle Stöckli; Gladys K. Onyambu; Martha W. Musyoka; Edward N. Karanja; Noah Adamtey. 2019. "Termite-Induced Injuries to Maize and Baby Corn under Organic and Conventional Farming Systems in the Central Highlands of Kenya." Insects 10, no. 10: 367.

Journal article
Published: 17 December 2018 in Sustainability
Reads 0
Downloads 0

Strategies to stop the loss of biodiversity in agriculture areas will be more successful if farmers have the means to understand changes in biodiversity on their farms and to assess the effectiveness of biodiversity promoting measures. There are several methods to assess on-farm biodiversity but it may be difficult to select the most appropriate method for a farmer’s individual circumstances. This study aims to evaluate the usability and usefulness of four biodiversity assessment methods that are available to farmers in Switzerland. All four methods were applied to five case study farms, which were ranked according to the results. None of the methods were able to provide an exact statement on the current biodiversity status of the farms, but each method could provide an indication, or approximation, of one or more aspects of biodiversity. However, the results also showed that it is possible to generate different statements on the state of biodiversity on the same farms by using different biodiversity assessment methods. All methods showed strengths and weaknesses so, when choosing a method, the purpose of the biodiversity assessment should be kept in the foreground and the limitations of the chosen methods should be considered when interpreting the outcomes.

ACS Style

Vanessa Gabel; Robert Home; Sibylle Stöckli; Matthias Meier; Matthias Stolze; Ulrich Köpke. Evaluating On-Farm Biodiversity: A Comparison of Assessment Methods. Sustainability 2018, 10, 4812 .

AMA Style

Vanessa Gabel, Robert Home, Sibylle Stöckli, Matthias Meier, Matthias Stolze, Ulrich Köpke. Evaluating On-Farm Biodiversity: A Comparison of Assessment Methods. Sustainability. 2018; 10 (12):4812.

Chicago/Turabian Style

Vanessa Gabel; Robert Home; Sibylle Stöckli; Matthias Meier; Matthias Stolze; Ulrich Köpke. 2018. "Evaluating On-Farm Biodiversity: A Comparison of Assessment Methods." Sustainability 10, no. 12: 4812.