What does bat activity inside the forest tell us about the activity above the canopy? A method for censuring bat activity at proposed wind farms in forests

Presentation

Title: What does bat activity inside the forest tell us about the activity above the canopy? A method for censuring bat activity at proposed wind farms in forests
Publication Date:
May 02, 2011
Conference Name: Conference on Wind energy and Wildlife Impacts
Conference Location: Trondheim, Norway
Receptor:

Document Access

Website: External Link
Attachment: Access File
(680 KB)

Citation

Bach, L.; Bach, P.; Tillmann, M. (2011). What does bat activity inside the forest tell us about the activity above the canopy? A method for censuring bat activity at proposed wind farms in forests [Presentation]. Presented at the Conference on Wind energy and Wildlife Impacts, Trondheim, Norway.
Abstract: 

In Germany in recent years, an increasing number of wind turbines are being planned in forests. The bat surveys for impact assessments are carried out on the forest floor using line transects. This method does not take into consideration that bat activity above and below the canopy might differ. So far, few studies have investigated bat activity above the forest canopy in Germany (Aschoff et al. 2006, Fichtner 2004), or elsewhere (Grindal & Brigham 1999, Hayes & Gruver 2000, Kalcounis et al. 1999). The aim of our study was to test the following hypotheses: bat activity and species composition above and below the canopy differs wind strongly influences bat activity above the canopy, but less so below the canopy assessing bat activity and species composition above the canopy from surveys at ground level is difficult or even impossible.

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