Study

Botanical development of restored species rich field margins

  • Published source details Jacot K., Eggenschwiler L. & Bosshard A. (2005) Botanical development of restored species rich field margins. Agrarforschung, 12, 10-15.

Actions

This study is summarised as evidence for the following.

Action Category

Plant nectar flower mixture/wildflower strips

Action Link
Farmland Conservation
  1. Plant nectar flower mixture/wildflower strips

    A replicated study from 2001 to 2004 in Switzerland (Jacot et al. 2005) showed that both seed composition of wildflower mixtures and micro-climatic conditions influenced the emerging plant community in sown wildflower strips. The number of plant species established from sown mixtures was relatively high (around 25 species/25 m2) in dry to moist sites, whereas fewer species (around 15 species/25 m2) established on wet or shady sites. Seed mixtures containing high proportions (>75%) of grasses often resulted in grass-dominated margins. Problematic weed species established but did not dominate any strip community. No clear effects of cutting could be shown during the four study years. Eighty wildflower strips on 35 farms were studied. The strips were hand-sown in April and May 2001 with four types of seed mixture, each mixture adapted to the micro-climatic conditions at the site: mixture with legumes, mixture without legumes, grass component of 75%, grass component of 90%. Additional strips were established in 2003 using seed mixtures with 20% or 40% grasses. Strips were cut once, twice or not at all in their first year, and annually in August from their second year onwards. Cuttings were removed. Half the strip was left uncut. Vegetation was surveyed annually in June from the second year after establishment.

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust