Distribution and relative abundance of bat species in Crater Lake National Park, Redwood National and State Parks, and Oregon Caves National Monument (2004 end of season report for bat inventories)
Duff AA. 2004. Distribution and relative abundance of bat species in Crater Lake National Park, Redwood National and State Parks, and Oregon Caves National Monument (2004 end of season report for bat inventories). Klamath Network Inventory and Monitoring Program. Ashland, OR
The Klamath Network Inventory and Monitoring Program 2004 end of season report for bat inventories. "During the summer of 2004, between 8 August and 13 October, I conducted bat inventories in three of the Klamath Network (KLMN) parks: Crater Lake National Park (CRLA), Oregon Caves National Monument (ORCA), and Redwood National and State Parks (RNSP). This inventory was designed to provide KLMN with a baseline dataset for bats fundamental in developing future monitoring efforts. Bats were documented using three methods, mist nets, harp traps, and Anabat II acoustical detectors. Using live capture techniques, 5 species were documented in CRLA, 4 species in ORCA, and 8 species in RNSP, resulting in grand total of 90 captures representing 11 species. In addition to the live captures, I recorded 6,152 Anabat II sequence files during echolocation surveys. At ORCA, I examined the effects of obstruction on several cave openings, and determined that gate installation would not significantly affect bat activity at these cave openings. During the course of this survey, no new species were documented that were not already listed on uncertified park species lists, but I did confirm the presence of 11 species in KLMN for these lists. Survey effort (5,231 m2 net hours) during this field season is only about 10% of that conducted for Lassen Volcanic National Park and Whiskeytown National Recreation Area during equivalent surveys 2001-2003. These results should be interpreted carefully until additional data for CRLA and RNSP is available from subsequent field seasons, at which point sample sizes may be adequate to draw management implications."
- Type
- Unpublished Report
- Authors
- Duff, Andrew
- Date of Issue
- 2004
- Publisher
- Klamath Network Inventory and Monitoring Program
- Units
- CRLA , KLMN , ORCA , REDW
- Keywords
- Abundance, Abundance (Biodiversity), Anabat, Animal Studies, Bats, Distribution, Distribution (Biodiversity), harp traps, Inventory & Monitoring, Mammal Inventory, Mammals, mist nets, Observations, Presence (Biodiversity), Wildlife