Publications by authors named "Philippe Jeanneret"

Article Synopsis
  • The intensification of agricultural practices in Europe has transformed agroecosystems, leading to biodiversity decline and concerns over the loss of crucial ecosystem services like pollination.
  • Different indicator species groups (ISGs) are used to assess biodiversity changes in agricultural landscapes, but the variety of metrics complicates interpretation and practical application of the results.
  • A systematic review was conducted, analyzing literature on how major agricultural management practices impact ISGs in lowland farming areas in Europe, resulting in 20,162 references collected and 1,208 remaining for further analysis.
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Life cycle assessment (LCA) aims at providing standardized evaluations of processes involving resource use, human health, and environmental consequences. Currently, spatial dependencies are most often neglected, though they are essential for impact categories like biodiversity. The "Swiss Agricultural Life Cycle Assessment for Biodiversity (SALCA-BD)" evaluates the impact of agricultural field management on 11 indicator species groups.

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Background: The intensification of the agricultural practices in Europe over the last decades has drastically transformed the agroecosystems. The simplification of the landscape, the loss of semi-natural habitats and the application of chemicals on crops are known to have led to biodiversity decline in agricultural landscapes, raising substantial concerns about the loss of essential ecosystem services, such as pollination or pest control. Depending on the location, the scale and the regional context, different indicator species groups (ISGs) are often surveyed to assess the state and trend of biodiversity changes in agroecosystems.

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Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we are limited in our capacity to understand the variation in pollination benefits to crop yield, as well as to anticipate changes in this service, develop predictions, and inform management actions.

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Article Synopsis
  • Floral plantings, like flower strips and hedgerows, are important for improving agricultural ecosystems by providing services such as pest control and pollination, but research on their effectiveness is limited.
  • In a study, flower strips were found to improve pest control services by 16% on average, while the impact on crop pollination and yield varied.
  • Key factors influencing effectiveness included the distance from plantings (pollination services decreased as distance increased) and the presence of older, more diverse flower strips, which enhanced pollination outcomes.
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Article Synopsis
  • * Conservation biological control (CBC) is essential for integrated pest management but has not been widely adopted; approaches have often been inconsistent and lacking in strategy.
  • * The QuESSA project developed a predictive scoring system for five habitat types to assess their potential for biological control, revealing context-specific results and suggesting tailored habitat designs to enhance natural enemy support for specific agricultural needs.
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Grasslands provide multiple Ecosystem Services (ES) such as forage provision, carbon sequestration or habitat provision. Knowledge about the trade-offs between these ES is of great importance for grassland management. Yet, the outcome of different management strategies on ES provision is highly uncertain due to spatial variability.

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Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields.

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Life Cycle Assessment (LCA) is a widely used tool to assess environmental sustainability of products. The LCA should optimally cover the most important environmental impact categories such as climate change, eutrophication and biodiversity. However, impacts on biodiversity are seldom included in LCAs due to methodological limitations and lack of appropriate characterization factors.

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Farmland is a major land cover type in Europe and Africa and provides habitat for numerous species. The severe decline in farmland biodiversity of the last decades has been attributed to changes in farming practices, and organic and low-input farming are assumed to mitigate detrimental effects of agricultural intensification on biodiversity. Since the farm enterprise is the primary unit of agricultural decision making, management-related effects at the field scale need to be assessed at the farm level.

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Article Synopsis
  • Different semi-natural habitats on farmland play a crucial role in supporting natural enemies, which help in managing pest populations and enhancing conservation biocontrol efforts.
  • Agri-environment schemes can fund the creation and improvement of these habitats across EU member states, contributing to more effective pest control strategies.
  • There are significant knowledge gaps regarding how different habitat types support natural enemies and their effectiveness in reducing pest densities, suggesting a need for further research and better habitat management practices.
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Organic farming is promoted to reduce environmental impacts of agriculture, but surprisingly little is known about its effects at the farm level, the primary unit of decision making. Here we report the effects of organic farming on species diversity at the field, farm and regional levels by sampling plants, earthworms, spiders and bees in 1470 fields of 205 randomly selected organic and nonorganic farms in twelve European and African regions. Species richness is, on average, 10.

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