The development of new bat boxes made from Styrofoam for use in winter roosts

  • Published source details Horn J. (2006) Die Entwicklung neuer Kästen aus Styropor für den Einsatz in Fledermaus-Winterquartieren. Nyctalus: Internationale Fledermaus-Fachzeitschrift, 11, 11-18.


This study is summarised as evidence for the following.

Action Category

Provide bat boxes for roosting bats

Action Link
Bat Conservation
  1. Provide bat boxes for roosting bats

    A replicated, before-and-after study in 2002–2005 in a railway underpass and two barn cellars in Brandenburg, Germany (Horn 2006) found that styrofoam bat boxes and strips were used by at least one bat species after being installed. A styrofoam bat box installed in a railway underpass was used by five brown long-eared bats Plecotus auritus within two weeks of installation. A week after the box was removed, the author reports that no bats were observed in the underpass. A second styrofoam bat box and strip installed in a cellar previously uninhabited by bats was used by two brown long-eared bats the following winter. Styrofoam strips and two hollow concrete blocks installed in a second cellar already inhabited by bats were used by brown long-eared, Daubenton’s Myotis daubentonii and Natterer’s Myotis nattereri bats (see original paper for details). In October 2002, a styrofoam bat box (40 x 40 cm with 2–5 cm wide interior columns) was installed in a railway drainage underpass (23 m long, 1.9 m wide and 1.8 m high). In autumn/winter 2003–2004, a styrofoam bat box and strip (1 m long, with gaps and cavities cut into it) were attached to the ceiling of a barn cellar. In September 2003, styrofoam strips (0.2 x 1 m) and two hollow concrete blocks were added to the walls of a second barn cellar. Bats were monitored after bat boxes and strips were installed (details were not provided).

    (Summarised by: Katie Sainsbury)

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