Individual study: Communities of butterflies, ground beetles and spiders differ between low input and intensively managed grasslands, in two regions of Switzerland
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.
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
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.