Study

Influence of urban mowing concepts on the diversity of butterflies: Investigations on public green space in the city of Tübingen

  • Published source details Kricke C., Bamann T. & Betz O. (2012) Einfluss städtischer Mahdkonzepte auf die Artenvielfalt der Tagfalter: Untersuchungen auf Grünflächen der Start Tübingen. Naturschutz und Landschaftsplanung, 45, 052-058.

Actions

This study is summarised as evidence for the following.

Action Category

Alter mowing regimes on greenspaces and road verges

Action Link
Butterfly and Moth Conservation
  1. Alter mowing regimes on greenspaces and road verges

    A replicated, paired, controlled study in 2011 in 10 urban greenspaces in Baden-Württemberg, Germany (Kricke et al. 2014) found that less frequently mown areas had a greater diversity of butterflies and burnet moths than regularly mown areas. The species richness and diversity of butterflies and burnet moths in areas mown once in the summer (9 species/site) was higher than in areas mown every 3–4 weeks throughout the summer (4 species/site, diversity data presented as model results). In addition, four species only occurred on grasslands which had been mown once/year for >4 years, which had an average of 11 species/site (statistical significance not assessed). See paper for individual species results. One half of each of 10 public greenspaces (>200 m2) was mown or mulched once in July or August 2011, while the other half was mown or mulched once every 3–4 weeks from April–August 2011. Five additional sites had only been mown once/year for >4 years. From April–early August 2011, butterflies were surveyed five times in each site, by walking with nets in large loops until no new species was found for 20 minutes.

    (Summarised by: Andrew Bladon)

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 19

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