1. NATIONAL MILITARY FISH AND WILDLIFE ASSOCIATION: 2015 BAT WORKING GROUP MEETING Trish Cutler and Eric Britzke Co-chairs

2. Outline Listing updates Acoustic monitoring basics Election Other business

3. Northern long-eared bat Listing as endangered was deemed warranted in October 2013 Final decision to be made by 2 April 2015 Proposed 4d rule and re- opening of comment period on listing decision are open for comment until 17 March

4. Other bats being assessed for potential listing Tri-colored bat –FWS is conducting status review Little brown bat –An official status review is being conducted –Date to be completed - ??????

5. Echolocation

6. Call Types Constant Frequency (CF) Frequency Modulated (FM)

7. Types of echolocation calls Search phase Approach phase Feeding buzzes

8. Picture of Analook file

10. Call Variation

11. Call Variation in Habitats OpenClutter

12. Factors affecting species ID Recording environment Acoustic ID Analysis

13. Impacts from the recording environment Habitat clutter Site selection Orientation Efficiency of the program will vary with these factors. To maximize accuracy and utility of the results, detectors should be placed in appropriate spots (a limitation of all sampling methods)

14. Acoustic identifications are not perfect (and will never be)

15. Classification rates (%) of mixture DFA MYAUMYGRMYLEMYLUMYSEMYSO MYAU 803 MYGR 941 MYLE 9343 MYLU 203896 MYSE 293 MYSO 56291 Other 31