Re-analysis of acoustic bat data: new relative abundance and temporal activity estimates at three national parks in the Great Lakes region
Miller BW and Jug G. 2009. Re-analysis of acoustic bat data: new relative abundance and temporal activity estimates at three national parks in the Great Lakes region
This study re-analyzed acoustic bat data collected from June-August 2003 that was part of a baseline inventory of bat species in three national parks in the Lake Superior region. While the original study presented base-line data on the presence/absence of bat species in these parks the authors assumed it was not possible to provide relative abundance or temporal activity of species. In the process of reanalyzing the acoustic data species identifications and spatially explicit links were added thereby creating a more robust archive of the data. Using the Acoustic Activity Index (AI) it was possible to derive relative abundance for each species and park. Temporal activity patterns are also presented as summaries for each species and park. An example of how spatially linking acoustic data is useful for park management is also presented for one species.
- Type
- Unpublished Report
- Authors
- Miller, Bruce; Jug, Gallon
- Date of Issue
- 2009-01
- Units
- APIS
- Keywords
- acoustic monitoring, activity, bats, Lake Superior, relative abundance