Temporal trends of arthropod diversity in conventional and low-input meadows
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Published source details
Jeanneret P., Aviron S. & Herzog F. (2005) Temporal trends of arthropod diversity in conventional and low-input meadows. Pages 344 in: Grassland Science in Europe. 10, Estonian Grassland Society, Tartu.
Published source details Jeanneret P., Aviron S. & Herzog F. (2005) Temporal trends of arthropod diversity in conventional and low-input meadows. Pages 344 in: Grassland Science in Europe. 10, Estonian Grassland Society, Tartu.
Actions
This study is summarised as evidence for the following.
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Reduce management intensity on permanent grasslands (several interventions at once) Action Link |
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Reduce management intensity on permanent grasslands (several interventions at once) Action Link |
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Reduce management intensity on permanent grasslands (several interventions at once)
A replicated, site comparison study in 2000–2004 in two agricultural regions in the Swiss Plateau, Switzerland (Jeanneret et al. 2005, same experimental set-up as 1 and 2) found that butterfly communities on low-input grasslands were distinct and different from those on intensively managed grasslands. Butterfly communities in low-input grasslands were different from those in intensively managed grasslands (data presented as model results). Thirty-three low-input grasslands were managed as Ecological Compensation Areas, comprising 23 extensively used meadows (late mowing and no fertilizer application) and 10 low-input meadows (late mowing and restricted fertilizer application (up to 60 kg N/ha/year)). Twenty-four intensively managed grasslands, where fertilizer application and mowing were unrestricted, comprised eight permanent intensively managed meadows, 14 meadows in traditional orchards, and two seeded meadows. Butterflies were monitored in three years between 2000 and 2004.
(Summarised by: Andrew Bladon, edited from Farmland Synopsis)
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Reduce management intensity on permanent grasslands (several interventions at once)
A site comparison study in the regions of Nuvilly and Ruswil, Switzerland (Jeanneret et al. 2005) found that spider (Araneae), ground beetle (Carabidae) and butterfly (Lepidoptera) communities on low input grasslands were distinct and different from those on intensively managed grasslands. The study used some of the same sites as (Jeanneret et al. 2003b). The difference was strongest for spider communities. The study was carried out on 33 low input grasslands managed as Ecological Compensation Areas - 23 ‘extensively used meadows’ with late mowing and no fertilizer and 10 ‘low-input meadows’, with late mowing and restricted fertilization (up to 60 kg N/ha/year). For comparison, there were 24 intensive meadows: eight permanent intensively managed meadows, 14 Ecological Compensation Area meadows in traditional orchards and two seeded Ecological Compensation Areas. These latter Ecological Compensation Area grassland types were considered intensively managed because they had no restrictions on cutting or fertilizer use. Spiders and ground beetles were monitored for three or four years between 1997 and 2003. Butterflies were monitored in three years between 2000 and 2004.
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