1 1 INTRODUCTION This paper has been prepared to support a ...

Berücksichtigung von Fledermäusen bei der Straßenplanung
Fachgespräch am 24. Juni 2010 in Köln
Erfahrungen mit dem Fledermausschutz im Zuge von
Straßenbaumaßnahmen im Vereinigten Königreich
Experiences of Dealing with Lesser Horseshoe Bats (Rhinolophus hipposideros / Kleine Hufeisennase)
in Wales, United Kingdom, Len Wyatt, Welsh Assembly Government
Description of
measure undertaken
Why undertaken
Results of monitoring
Photograph:
Existing culvert.
Hyder.
lar” around town using woods, hedgerows and large trees; and
a river. New road crosses flight path where 10 to 17 bat movements
using a flight path either along stream through existing
culvert or across crowns of mature trees.
Provision of new culvert (dimensions 2.5m) 15m from existing
culvert (dimensions 0.9m). New culvert built outside of
bat flight period winter 2006/7 and kept open during bats
flight periods 2007.
Need to maintain flight path after removal of hedgerow with mature
trees. (See also Case study 6). Existing underpass also
used by otters (Lutra lutra), badgers (Meles meles).
Monitoring ongoing since 2006. At first bats split between flying
through culverts and also through trees. Removal of branch
from tree nearest road in winter 2007/8 moved all bats to use
culverts. Results during and post construction (so far) suggest
pathway remained in use in similar frequency and numbers as
before.
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