1. Thoughts on the bat research and monitoring program at Fort Drum, NY
Chris Dobony, Fort Drum Military Installation, Fort Drum, NY
David Jachowski, Clemson University, Clemson SC
Eric Britzke, U.S. Army Engineer Research Development Center, Vicksburg, MS
John Edwards, West Virginia University, Morgantown, WV
Joshua Johnson, Pennsylvania Game Commission, Phillipsburg, PA
Laci Coleman, Ecotech Inc., Marietta, GA
W. Mark Ford, U.S. Geological Survey, Blacksburg, VA
Jane Rodrigue, U.S. Forest Service, Northern Research Station, Princeton, WV

2. MIST NET SAMPLING MISTNET SURVEY LOCATIONS 2007 - 2011
JUN – AUG 2007
= 41 SURVEY LOCATIONS
JUL – AUG 2008
= 85 SURVEY LOCATIONS
JUN – AUG 2009
= 86 SURVEY LOCATIONS
JUN – AUG 2010

3. MIST NET RESULTS MYOTIS 2007 (n = 81) 2008 (n = 41) 2009 (n = 85) 2010
2011
(n = 60)*
Little Brown Myotis
440 (5.43)
104 (2.54)
35 (0.41)
51 (0.6)
15 (0.25)
Northern Myotis
260 (3.21)
37 (0.90)
5 (0.06)
1 (0.02)
Indiana Myotis 18 2 1
Small-footed Myotis
* 30 Sites Repeated Twice

4. Indiana bat foraging ecology
Introduction
1. Monitoring
2. Indiana bat
3. White-nose
Jachowski, D.S., J.B. Johnson, C.A. Dobony, J.W. Edwards and W.M. Ford Space Use and Resource Selection by Foraging Indiana Bats at Their Northern Distribution. Endangered Species Management 24: 149–157.
Future research

5. ANABAT SAMPLING
IN 2003, FORT DRUM BEGAN USING ACCOUSTICAL MONITORING EQUIPMENT (ANABAT) TO DOCUMENT BAT ACTIVITY

6. ANABAT RESULTS SPECIES YEAR EPFU LABO LACI LANO MYLE MYLU MYSE MYSO
PEMY
NOID ∑ X
2004
n= 229
1138
4.97
945
4.13
640
2.79 90
0.39 1
0.004
2910
12.71
178
0.78
365
1.59 84
0.37
1158
5.06
7509
32.79
2009
n= 259
652
2.52
383
1.48
402
1.55
384 15
0.06
501
1.93 13
0.05 60
0.23
192
0.74
1461
5.64
4063
15.69
2005
n= 297
318
1.07
717
2.41
545
1.84 24
0.08 3
0.01
3561
11.99
200
0.67
947
3.19 9
0.03
726
2.44
7050
23.74
2010
n= 574
600
1.05
183
0.32
176
0.31
262
0.46 32
144
0.25 7 40
0.07 18
2238
3.90
3700
6.45
YEAR
CALLS/HR

7. Introduction
1. Monitoring
2. Indiana bat
Next was determination of ideal passive arrays to capture Indiana bat and Little brown bat, i.e., transects, double-sites, grids – all to relate to using occupancy analyses to examine trends.
3. White-nose
Future research

8. Introduction
1. Monitoring
2. Indiana bat
Two points here. Note the absolute drop in activity pre- vs post- and note the direction of the line. Bat #’s should increase from May-June to July-Aug when new bats are volant. They did pre-WNS, but do not post-WNS, indicating that while there is survival, recruitment is not occuring
3. White-nose
Future research

9. Introduction
1. Monitoring
2. Indiana bat
For example, here with the little brown bat, Myotis lucifugus, we see a dramatic decline in activity in the years of monitoring post-WNS. Particularly notice this distinct peak in activity by MYLU in the early morning hours. Rather than just a decline in activity post-WNS and similar trend in temporal behavior, that peak is completely absent post-WNS.
3. White-nose
Future research

10. Introduction
1. Monitoring
2. Indiana bat
For some species like the rare Indiana bat that were historically active throughout the night, the few remaining bats post-WNS may be switching to being early evening specialists. This suggests that niche partitioning may be relaxed temporally - potentially due to a lack of competition with MYLU that formerly dominated that time period in the evening.
3. White-nose
Jachowski, D.S., C.A. Dobony, L.S. Coleman, W.M. Ford, E.R. Britzke, and J.L. Rodrigue Disease and community structure: white-nose syndrome alters spatial and temporal niche partitioning in sympatric bat species. Diversity and Distributions 20:
29.
Future research

11. BAT SAMPLING, GUANO SAMPLING, BAT HOUSE SAMPLING

12. Introduction
1. Monitoring
2. Indiana bat
Large little brown bat colony in artificial structure became a primary focus. Pre-WNS, colony of > 1000 bats. Now probably 100, but still largest remaining for most of NY and New England.
3. White-nose
Future research

13. FORT DRUM LITTLE BROWN BAT MATERNITY COLONY
Introduction
YEAR
# BATS
REPRO RATE
Pre-volant
Post-volant
2006 --
1,144
2007
2008
1,200
2009
243
345
42%
2010
104
155
49%
2011 99
158
60%
2012
101
169
67%
2013 96
2014 95
185
95%
1. Monitoring
2. Indiana bat
3. White-nose
Future research

14. JUVENILE SURVIVAL 2009 - 2013: 1 Recapture 2009 - 2014: 1 Recapture
: 3 Recaptures
: 1 Recaptures
: 4 Recaptures
: 3 Recaptures
: 6 Recaptures
: 9 Recaptures
13 juveniles survived multiple years

15. Pd detected from swabs, culture, and/ or guano from bats in the bat house in April, May, June, July, and August of 2009 and/ or 2010.
Pd detected from swabs taken from bat house in March and September of 2011.
Pd detected from swabs taken from bat house in March, April, May, June, July, August, September, October, November of 2013

16. Introduction
1. Monitoring
2. Indiana bat
Immediately used to look at rate bats at this northern latitude go into torpor in the summer which might contribute to
3. White-nose
Future research
Britzke, E.R and C.A. Dobony (in prep). Could summer torpor be a factor in White-nose Syndrome? U.S. Army Engineer Research and Development Center Tech Note. Vicksburg, MS.