Mammalian Biology

, Volume 78, Issue 4, pp 283–289 | Cite as

Impact of landscape fragmentation on a specialised woodland bat, Rhinolophus hipposideros

  • Guido ReiterEmail author
  • Elisabeth Pölzer
  • Harald Mixanig
  • Fabio Bontadina
  • Ulrich Hüttmeir
Original Investigation


For habitat specialists, fragmentation has major consequences as it means less suitable habitat for the species to live in. In a fragmented landscape, we would expect larger, but spatially more clustered, foraging ranges. We studied the impact of landscape fragmentation on the foraging range and habitat exploitation of a specialised forest bat by radiotracking 16 female lesser horseshoe bats Rhinolophus hipposideros in a landscape with connected woodland structures and in a highly fragmented landscape in Carinthia, Austria.

Contrary to our expectations, spatial foraging behaviour was not influenced by fragmentation. No differences in the behaviour of the bats between the sites were evident for the foraging ranges (minimum convex polygon, MCP), the core foraging areas (50% kernel), nor the mean or the maximum distances from the roost. However, in the highly fragmented landscape, the foraging activity of individuals was spatially more clustered and the overall MCP of all bats of a colony was greater compared to the less fragmented landscape.

Woodland was the most important foraging habitat for the lesser horseshoe bats at both study sites. Habitat selection at the individual MCPs was evident only at the site with low fragmentation. However, in the core foraging areas, woodland was significantly selected over all other habitat types at both study sites.

We conclude that (1) conservation measures for colonies of lesser horseshoe bats should be undertaken within 2.5 km of the nursery roost, (2) woodland is the key foraging habitat particularly in the vicinity of the roost, and (3) any loss of woodland near the colonial roosts are likely to negatively influence the colony, since these bats do not seem to be able to adapt their spatial foraging behaviour in a degraded landscape. The inflexible spatial behaviour of this specialised bat highlights the need to compensate for any habitat loss within the foraging range of a bat colony.


Landscape fragmentation Habitat management Conservation Austria 


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Copyright information

© Deutsche Gesellschaft für Säugetierkunde 2013

Authors and Affiliations

  • Guido Reiter
    • 1
    Email author
  • Elisabeth Pölzer
    • 1
    • 2
  • Harald Mixanig
    • 1
  • Fabio Bontadina
    • 3
    • 4
  • Ulrich Hüttmeir
    • 1
  1. 1.Austrian Coordination Centre for Bat Conservation and Research (KFFOE)LeondingAustria
  2. 2.University of Graz, Institute of ZoologyGrazAustria
  3. 3.SWILD, Urban Ecology & Wildlife ResearchZürichSwitzerland
  4. 4.Swiss Federal Research Institute WSLBiodiversity and Conservation BiologyBirmensdorfSwitzerland

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