Study

Landscape context affects trap-nesting bees, wasps, and their natural enemies

  • Published source details Steffan-Dewenter I. (2002) Landscape context affects trap-nesting bees, wasps, and their natural enemies. Ecological Entomology, 27, 631-637.

Actions

This study is summarised as evidence for the following.

Action Category

Provide nest boxes for bees (solitary bees or bumblebees)

Action Link
Farmland Conservation

Provide artificial nest sites for solitary bees

Action Link
Bee Conservation

Provide artificial nest sites for solitary bees

Action Link
Bee Conservation
  1. Provide nest boxes for bees (solitary bees or bumblebees)

    A replicated trial in 1997 of 120 reed Phragmites australis stem nest boxes at 15 different agricultural sites near Göttingen in Lower Saxony, Germany (Steffan-Dewenter 2002) (same study as (Gathmann & Tscharntke 2002)) found the boxes were occupied by 11 species of bee (Apidae). The red mason bee Osmia rufa and the common yellow face bee Hylaeus communis were the most widespread and common nest box occupants in this study. Fourteen percent of bee brood cells were attacked by natural enemies (brood parasites, parasitoids or predators). Nest boxes consisted of 150-180 stem sections of common reed, with diameters of 2-10 mm, cut 20 cm-long and put in 10.5 cm diameter plastic tubes. Reed-filled tubes were attached to wooden posts 1-1.2 m above the ground, with four nest boxes to a post. Two posts (eight nest boxes) were placed at 15 different sites from April to October. In October, occupied reeds were cut open and the number of brood cells in each stem counted. Occupants were reared in the laboratory and identified to species where possible.

     

  2. Provide artificial nest sites for solitary bees

    A trial of 120 reed stem nest boxes at 15 different agricultural sites near Göttingen in Lower Saxony, Germany in 1997 found the boxes occupied by 11 species of bee (Steffan-Dewenter 2002). The red mason bee Osmia rufa and the common yellow face bee Hylaeus communis were the most widespread and common nest box occupants in this study.

  3. Provide artificial nest sites for solitary bees

    In a trial of 120 reed stem next boxes in lower Saxony, Germany in 1997 (Steffan-Dewenter 2002), 14% of bee brood cells were attacked by natural enemies (brood parasites, parasitoids or predators).

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