Papers

Clerc, J., Weller, T.J., Schineller, J.B. and Szewczak, J.M. (2016) Minimally invasive collection of adipose tissue facilitates the study of eco-physiology in small-bodied mammals. Methods in Ecology and Evolution.

Rodhouse, T. J., Ormsbee, P. C., Irvine, K. M., Vierling, L. A., Szewczak, J. M., & Vierling, K. T. (2015) Establishing conservation baselines with dynamic distribution models for bat populations facing imminent decline. Diversity and Distributions. link

J. P. Kennedy, S. C. Sillett, & J. M. Szewczak (2014) Bat activity across the vertical gradient of an old-growth Sequoia sempervirens forest. Acta Chiropterologica, 16(1):53-63. link

Clement, M. J., T. J. Rodhouse, P. C. Ormsbee, J. M. Szewczak, and J. D. Nichols. (2014) Accounting for false-positive acoustic detections of bats using occupancy models." Journal of Applied Ecology. (online) link

Arnett, E. B., Hein, C. D., Schirmacher, M. R., Huso, M. M., & Szewczak, J. M. (2013) Evaluating the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at wind turbines. PLOS ONE, 8(6), e65794. link

Rognan, C. B., Szewczak, J. M., & Morrison, M. L. (2012). Autonomous Recording of Great Gray Owls in the Sierra Nevada. Northwestern Naturalist, 93(2): 138-144. link

Rodhouse, T. J., P. C. Ormsbee, K. M. Irvine, L. A., J. M. Szewczak, and K. T. Vierling (2012) Assessing the status and trend of bat populations across broad geographic regions with dynamic distribution models. Ecological Applications, 22(4): 1098–1113. link

Tegeler, A.K., M.L. Morrison, and J.M. Szewczak (2012) Using long-term audio recordings to survey avian species. Wildlife Society Bulletin, 36: 21–29. link

Szewczak, J.M. (2011) A call in the night. United States Fish and Wildlife Service Endangered Species Bulletin. 3: 42-43. link

Tegeler-Amones, A.K., M.L. Morrison, J.M. Szewczak, and C. Stermer (2010) Assessing point count sampling in montane Meadows. California Fish and Game 96(3): 201-212. link

Redgwell, R.D., J.M. Szewczak, G. Jones, and S. Parsons (2009) Classification of Echolocation Calls from 14 Species of Bat by Support Vector Machines and Ensembles of Neural Networks. Algorithms. 2:907-924. link

Rognan, C.B., J.M. Szewczak, and M.L. Morrison (2009) Vocal individuality of great gray owls in the Sierra Nevada. Journal of Wildlife Management. 73(5):755–760. link

Szewczak, J.M., and E.B. Arnett (2007) Acoustic Monitoring of Bats, in Methods and Metrics for Studying Impacts of Wind Energy Development on Nocturnal Species (Birds and Bats), T.H. Kunz, ed. National Wind Coordinating Committee (NWCC). Journal of Wildlife Management 71(8):2449–2486. link

Wood, W.F., and J.M. Szewczak (2007) Volatile compounds in the pelage of the Mexican free-tailed bat, Tadarida brasiliensis mexicana. Biochemical Systematics and Ecology,  35(9):566-568. link

Szewczak,  J.M. (2005) Review: The Indiana Bat, Biology and Management of an Endangered Species. Bat Conservation International, Austin, TX, 253 pp. Journal of Mammalogy. 86(1):212.

Huey, K.A., J.M. Szewczak, and F.L. Powell (2003) Dopaminergic mechanisms of neural plasticity in respiratory control: Transgenic approaches. Respiration Physiology and Neurobiology. 135:133-44.

Szewczak, J.M. and F.L. Powell (2003 ) Open-flow plethysmography with pressure-decay compensation. Respiration Physiology and Neurobiology. 134:57-67. link

Morrison, M. L. and J. M. Szewczak (2002) Focus on Field Stations, White Mountain Research Station, University of California. Bulletin of the Ecological Society of America, 83(1):63-68.

Hammond, K.A., J.M. Szewczak and E. Król (2001) Effects of altitude and temperature on organ phenotypic plasticity along an altitudinal gradient. Journal of Experimental Biology. 204(11):1991-2000.

Sullivan, S.G. and J.M. Szewczak (1998) Apneic oxygen uptake in the torpid pocket mouse, Perognathus parvus. Physiological Zoology. 71(6):624-632. link

Szewczak, J.M., S.M. Szewczak, M.L. Morrison, and L. Hall (1998) Bats of the White-Inyo Range. Great Basin Naturalist. 58(1):66-75. link

Hepple, R.T., P.J. Agey, L. Hazelwood, J.M. Szewczak, R.E. MacMillen and O. Mathieu-Costello (1998) Increased capillarity in hindlimb muscle of birds living at altitude. Journal of Applied Physiology. 85(5):1871-1876.

Szewczak, J. M. (1997) Matching gas exchange in the bat from flight to torpor. in: Comparative Aspects of the Control of Arterial Blood Gases: Ventilatory and Cardiovascular Perspectives. American Zoologist. 37:92-100. link

Manning, S.J., Cashore, B.L. & Szewczak, J.M. (1996) Pocket gophers damage saltcedar (Tamarix ramosissima) roots. Great Basin Nat. 56: 183-185.

Mathieu-Costello, O., P.J. Agey and J.M. Szewczak (1994) Capillary-fiber geometry in one of the smallest bats, Pipistrellus hesperus. Respiration Physiology. 95:155-169.

Szewczak, J.M. and D.C. Jackson (1992) Apneic Oxygen uptake in the torpid bat, Eptesicus fuscus . Journal of Experimental Biology. 173:217-229. link

Szewczak, J.M. and D.C. Jackson (1992) Acid-base state and intermittent breathing in the torpid bat, Eptesicus fuscus . Respiration Physiology. 88:205-215. link

Szewczak, J.M. and D.C. Jackson (1992) Ventilatory response to hypoxia and hypercapnia in the torpid bat, Eptesicus fuscus . Respiration Physiology 88:217-232.

Mathieu-Costello, O., J.M. Szewczak, R.B. Logemann and P.J. Agey (1991) Geometry of blood-tissue exchange in bat flight muscle compared with bat hindlimb and rat soleus muscle. American Journal of Physiology. 262: R955-R965.

Maginniss, L.A., J.M. Szewczak, C.M. Troup  (1987)  Effects of methyl isocyanate inhalation on the oxygen binding properties of guinea pig blood.  Environ. Health Perspectives. 72:35-38. link

Books

Parsons, S., and J.M. Szewczak (2009) Detecting, Recording, and Analyzing the Vocalizations of Bats, in Ecological and Behavioral Methods for the Study of Bats, 2nd Edition, T.H. Kunz, ed. Johns Hopkins University Press (920 pp).

Szewczak, J.M. (2004) Advanced analysis techniques for identifying bat species. Brigham, R. Mark; Kalko, Elisabeth K.V.; Jones, Gareth; Parsons, Stuart; Limpens, Herman J.G.A. [Eds]. Bat echolocation research: tools, techniques and analysis. Bat Conservation International, Austin. 121-22.

Szewczak, J.M. (1994) Bats of the White Mountain Region. in: The Crooked Creek Guidebook. C. H. Hall, Jr. and B. Widawski, editors. University of California.

R.W. Hansen, K.H. Switak and J.M. Szewczak (1994) The black toad, Bufo exsul. in: Life on the Edge: a Guide to California's Endangered Natural Resources. C. G. Thelander, editor in chief. BioSystems Books.

Reports

J.M. Szewczak (2011) Acoustic Deterrence of Bats: A Guidance Document. Caltrans Agreement Number A3A0219. link

Arnett, E. B., C. D. Hein, M. R. Schirmacher, M. Baker, M. M. P. Huso, and J. M. Szewczak. 2011. Evaluating the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at wind turbines. A final report submitted to the Bats and Wind Energy Cooperative. Bat Conservation International. Austin, Texas, USA. link

J.M. Szewczak, Parsons, S., and M.L. Morrison (2011) Automated acoustic identification of bats. SERDP Project RC-1394. link

J.M. Szewczak, and M.L. Morrison (2010) Bird Species Identification and Population Estimation by Computerized Sound Analysis. Caltrans CFS Number 2045DRI, XB05. link

Arnett, E.B., M. Baker, M.M.P. Huso, and J.M. Szewczak (2010) Evaluating the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at wind facilities. An investigative report submitted to the Bats and Wind Energy Cooperative. Bat Conservation International. Austin, Texas, USA.

Szewczak, J. M., and E.B. Arnett (2008) Field test results of a potential acoustic deterrent to reduce bat mortality from wind turbines. An investigative report submitted to the Bats and Wind Energy Cooperative. Bat Conservation International. Austin, Texas, USA. link

Szewczak, J. M., and E.B. Arnett (2006) Ultrasound emissions from wind turbines as a potential attractant to bats: a preliminary investigation. An investigative report submitted to the Bats and Wind Energy Cooperative. Bat Conservation International. Austin, Texas, USA. link

Szewczak, J.M., and E.B. Arnett (2006) Preliminary Field Test Results of an Acoustic Deterrent with the Potential to Reduce Bat Mortality from Wind Turbines. An investigative report submitted to the Bats and Wind Energy Cooperative. Bat Conservation International. Austin, Texas, USA. link

Abstracts

Szewczak, J.M., J.D. Chenger, and J.D. Tyburec (2016) More Reference Recordings Decreases, Rather than Increases, Acoustic Classification Performance of Myotis sodalis and M. lucifugus. North American Symposium for Bat Research, San Antonio, TX, October 12–15, 2016.

Harris, L.S., M.L. Morrison, J.M. Szewczak, A. Long, and S. Osborn. (2016) Townsend's Big-eared Bat in California: A Snapshot of Statewide Distribution. North American Symposium for Bat Research, San Antonio, TX, October 12–15, 2016.

Meierhofer, M.B., J. Evans, B.L. Pierce, J.M. Szewczak, and M.L. Morrison (2016) Gathering Baseline Data on Wintering Bats and Roosts in Texas. North American Symposium for Bat Research, San Antonio, TX, October 12–15, 2016.

Tyburec, J.D., J.D. Chenger, and J.M. Szewczak (2016) Improving Bat Survey Efficiency and Occupancy Results by Using Simultaneous Capture and Acoustic Methods. North American Symposium for Bat Research, San Antonio, TX, October 12–15, 2016.

Harris, L.S., M.L. Morrison, J.M. Szewczak, A. Long, and S. Osborn. (2016) Statewide Assessment of Townsend's Big-eared Bat in California: a Collaborative Effort for a Candidate Species. The Wildlife Society Western Section, Pomona, CA, February 23-26, 2016.

Harris, L.S., M.L. Morrison, J.M. Szewczak, A. Long, and S. Osborn. (2015) Statewide Assessment of Townsend's Big-eared Bat in California: a Collaborative Effort for a Candidate Species. North American Symposium for Bat Research, Monterey, CA, October 28–31, 2015.

Brokaw, A., and J.M. Szewczak (2015) Yuma Myotis Social Calls Attract Bats to Artificial Roost. North American Symposium for Bat Research, Monterey, CA, October 28–31, 2015.

Morrison, M.L., J.M. Szewczak, L.S. Harris, J. Light, and O. Takano. (2015) Roost-Site Selection and Movements of the Townsend's Big-Eared Bat. North American Symposium for Bat Research, Monterey, CA, October 28–31, 2015.

Brokaw, A., and J.M. Szewczak (2014) Assessing the Use of Social Calls to Attracts Bats to Artificial Roost Sites. Raptors of the Northwest Symposium. Pasco, WA, February 5-7, 2014.

Byrnes, R., J.M. Szewczak, and J.J. Keane (2014) Assessing Bioacoustic Techniques for Inventory and Monitoring of Forest Owls in the central Sierra Nevada, California. The Western Section of The Wildlife Society Annual Conference, Reno, NV, January 28–31, 2014.

Szewczak, J.M. (2013) SonoBat expert system for bat echolocation call analysis and species identification. Southeastern Bat Diversity Network Meeting and Colloquium. Pikeville, TN, February 14–15, 2013.

Szewczak, J.M., and L.S. Harris (2013) A Field Test of Two Acoustic Classification Systems to Discriminate Indiana Bats. Northeast Bat Working Group, Albany, NY, January 9–11, 2013.

Rodhouse, T. J., P. C. Ormsbee, K. M. Irvine, L. A. Vierling, J. M. Szewczak, and K. T. Vierling (2012) Annual turnover in bat occupancy patterns: predictions from life history theory and implications for conservation and monitoring. Ecological Society of America, Portland, OR, August 5–12, 2012.

Szewczak, J.M. (2012) Overlapping call characteristics of Myotis. Northeast Bat Working Group, Carlisle, PA, January 11–13, 2012.

Szewczak, J.M. (2011) SonoBat automated bat classification. North American Symposium for Bat Research, Toronto, Ontario, October 25-29, 2011.

Arnett, E. B., M. R. Schirmacher, C. D. Hein, M. M. P. Huso, and J. M. Szewczak (2011) Evaluating the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at wind turbines. North American Symposium for Bat Research, Toronto, Ontario, October 25-29, 2011.

Szewczak, J.M. (2011) Using acoustic broadcasts to deter bats from wind turbines and exclude them from bridges and other structures. Bats and Wind Energy Cooperative. Las Vegas, NV. April 6–8, 2011.

Szewczak, J.M.. and E. B. Arnett (2011) Using acoustic broadcasts to deter bats from wind turbines and exclude them from bridges and other structures. The Western Section of The Wildlife Society Annual Conference, Riverside, CA, February 8–11, 2011.

Kennedy, J.P., and J.M. Szewczak (2010) Bat activity across the vertical gradient of an old-growth redwood forest. North American Symposium for Bat Research, Denver, CO,  October 27-30, 2010.

G. Reyes, and J.M. Szewczak (2010) The behavioral function of social calls in the migratory hoary bat Lasiurus cinereus. North American Symposium for Bat Research, Denver, CO,  October 27-30, 2010.

Szewczak, J.M. (2009) Descending a trophic level- an account of vampire bat feeding.. North American Symposium for Bat Research, Portland, OR,  November 4-7, 2009.

J.M. Szewczak (2009) The potential for acoustic broadcasts to exclude bats from bridges and other structures. Statewide Tri-Agency Biologist Training and Workshop and Road Ecology Meeting. Walnut Creek, CA, February 24-26, 2009

J.M. Szewczak (2009) Automated survey and monitoring of bird and bat populations. Statewide Tri-Agency Biologist Training and Workshop and Road Ecology Meeting. Walnut Creek, CA, February 24-26, 2009

Szewczak, J.M.(2008) Automated Acoustic Monitoring of Bat and Bird Populations. Partners in Environmental Technology Symposium, Washington, D.C., December 2-4, 2008.

Szewczak, J.M.. and E. B. Arnett (2008) The Potential for Acoustic Broadcasts to Deter Bats from Approaching Wind Turbines. North American Symposium for Bat Research, Scranton, PA,  October 22-25, 2008.

J.M. Szewczak (2008) Automated monitoring and assessment of bat and bird populations on military lands. The Western Section of The Wildlife Society Annual Conference, Redding, CA, February 6-8, 2008.

J.M. Szewczak (2008) Further testing of an acoustic deterrent to reduce bat mortality from wind turbines. The Western Section of The Wildlife Society Annual Conference, Redding, CA, February 6-8, 2008.

Tegeler-Amones, A.,  J.M. Szewczak, H. Mathewson, M.L. Morrison, and C. Stermer (2008) Assessing Monitoring Techniques for Bird Populations in Sierra Nevada Montane Meadows. The Western Section of The Wildlife Society Annual Conference, Redding, CA, February 6-8, 2008.

Szewczak, J.M. (2008) Lab and field tests of acoustic deterrents. Bats and Wind Energy Cooperative Workshop, Austin, TX, January 8–10, 2008.

Szewczak, J.M. (2008) Further testing of an acoustic deterrent to reduce bat mortality from wind turbines. Western Section of The Wildlife Society, Redding, CA, February 6–8, 2008.

Szewczak, J.M. (2008) Automated monitoring and assessment of bat and bird populations on military Lands. Western Section of The Wildlife Society, Redding, CA, February 6–8, 2008.

Tegeler-Amones, A., and J.M. Szewczak (2008) Assessing Monitoring Techniques for  Bird Populations in Sierra Nevada  Montane Meadows. Western Section of The Wildlife Society, Redding, CA, February 6–8, 2008.

Szewczak, J.M. (2007) Progress toward an automated system for monitoring and assessing bat populations. Patners in Environmental Technology Technical Symposium and Workshop, Washington, DC, December 4–6, 2007.

Szewczak, J.M. (2007) Training bats to avoid wind turbines using an acoustic deterrent. International Bat Research Conference and North American Symposium on Bat Research, Mérida, Mexico, August 19–23, 2007.

Corcoran, A.J., and Szewczak, J.M. (2007) Automated Acoustic Identification of Nine Bat Species of the Eastern United States. International Bat Research Conference and North American Symposium on Bat Research, Mérida, Mexico, August 19–23, 2007.

Szewczak, J.M. (2007) Flying turtles and diving bats. Symposium Honoring Professor Jackson.Brown University, Providence, RI, June 23, 2007.

Szewczak, J.M., and E.B. Arnett (2007) An acoustic deterrent with the potential to reduce bat mortality from wind turbines. The Western Section of  The Wildlife Society, 2007 Annual Conference, Monterey, CA, January 30 – February 2, 2007.

Szewczak, J.M., and E.B. Arnett (2006)  An acoustic deterrent with the potential to reduce bat mortality from wind turbines.The National Wind Coordinating Committee, San Antonio, TX, November 14-15, 2006.

Szewczak, J.M. (2006) Developing an automated system for monitoring and assessing bat populations, Partners in Environmental Technology Technical Symposium and Workshop, Washington, DC, November 28-30, 2006.

Corcoran, A.J., and J.M. Szewczak (2006) Fully Automated Identification of Three Bat Species: Lasiurus borealis, Nycticeius humeralis, and Pipistrellus subflavus Using Full-Spectrum Acoustic Data. North American Symposium for Bat Research, Wilmington, NC, October 18-21, 2006.

Freeman, K.A., and J.M. Szewczak (2006) Opportunistic Videography of Maternity Roosting Behaviors of a Colony of Townsend’s Big-Eared Bat (Corynorhinus townsendii). North American Symposium for Bat Research, Wilmington, NC, October 18-21, 2006.

Szewczak, J.M., and E.B. Arnett (2006) Testing An Acoustic Deterrent with the Potential to Reduce Bat Mortality from Wind Turbines. North American Symposium for Bat Research, Wilmington, NC, October 18-21, 2006.

Szewczak, J.M. (2006) Do wind turbines generate ultrasound that may attract bats? The Wildlife Society Western Section Annual Conference, Sacramento, CA, February 8-10, 2006.

Szewczak, J.M. (2005) Progress in Bat Monitoring and Assessments. SERDP symposium, "Preserving our Critical Natural Resources,” Washington, D.C., October 25, 2005.

Szewczak, J.M. (2005) Do wind turbines generate ultrasound that may attract bats? North American Symposium for Bat Research, Sacramento, CA. October 19-23, 2005.

Berry, R.D. and J.M. Szewczak (2005) A field recording technique to passively collect and time tag echolocation calls from free flying bats Western Bat Working Group Biennial Meeting, Portland, OR. March 30 – April 2, 2005.

Szewczak, J.M. (2004) Advances in the acoustic monitoring of bats. American Society of Mammalogists. Arcata, CA. June 16, 2004.

Szewczak, J.M. (2004) Bat Monitoring and Assessments. Partners in Environmental Technology Symposium, "Preserving our Critical Natural Resources.” Washington, D.C., December 2, 2004.

Weller, T.J., J.M. Szewczak, and M.M. McKenzie (2004) Acquiring representative reference calls: a comparison calls recorded on zip-line and hand release. Bat Research News 45(4):272.

Szewczak, J.M. (2003) Variability of pH regulation among mammals. FASEB Experimental Biology Meeting, April 11-15, 2003, San Diego, CA.

Szewczak, J.M. (2002) Multivariate acoustic transforms for identifying bat species. North American Symposium for Bat Research, Burlington, VT. November 6–9, 2002.

Szewczak, J.M. (2002) Phenostasis and patterns of growth: a framework from which to interpret adaptive capacity. American Physiological Society special Comparative Physiology Meeting.

Hill, E. M., S.J. Wickler, J.M. Szewczak, H.M. Greene, and E.A. Cogger (2001) 2,3-Diphosphoglycerate in burros (Equus asinus) after six weeks at altitude. American Zoologist, 41 (6): 1471-1472.

Szewczak, J.M. (2001) Bat torpor, hibernaculum environment, and survival. Bat Research News. 42(3).

Berry, R.D. and J.M. Szewczak (2001) A Field Recording Technique to Passively Collect and Time Tag Echolocation Calls from Free Flying Bats Using a Time Expansion Bat Detector and a Digital 8 Video Camcorder. Bat Research News, (in press).

Szewczak, J.M. (2000) A tethered zip-line arrangement for reliably collecting bat echolocation reference calls. Bat Research News, 41:142.

Szewczak, J.M. (2000) A consistent acoustic feature to discriminate Myotis species. Bat Research News, 41:141.

Szewczak, J.M. (2000) Periodic breathing, acid-base state, and apneic oxygen uptake in the torpid mammal. (Annual Symposium and Joint International Meeting of the Society for Experimental Biology on Milestones and Goals Cambridge, England, UK July 30-August 03, 2000). Comparative Biochemistry and Physiology Part B Biochemistry & Molecular Biology July, 2000. 126B:S92.

Szewczak, J.M. and Powell, F.L. (2000) Open flow plethysmography with pressure-decay compensation. FASEB Journal, v.14, n.4, March 15, 2000:A610.

Szewczak, J.M. and F.L. Powell. (1999) Arterial Blood gas and acid-base state in C57 mice during normoxia and hypoxia. American Journal of Critical Care and Respiratory Medicine, 159:A842.

Szewczak, J.M. (1999) Hypoxic hypometabolism and thermal conductance. FASEB Journal, v.13, n.4 PART 1, March 12, 1999.:A495.

Szewczak, J.M. (1999) Hypoxic hypometabolism in heterothermic mammals. American Zoologist, v.38, n.5, 1998.:9A.

Hepple, R.T., P.J. Agey, L. Hazelwood, J.M. Szewczak, R.E. MacMillen and O. Mathieu-Costello (1998) Increased capillarity in hindlimb muscle of birds living at altitude. FASEB Journal, v.12, n.5: A723.

Szewczak, J. M. (1996) A test of plasticity in ventilatory motor control. FASEB Journal. 10(3): 3707-3708.

Kwatinetz, M. H., J. C. Dewis and J.M. Szewczak (1996) Interactions of hypoxic and hypercapnic stimuli on ventilatory motor output. FASEB Journal. 10(3): 3707.

Szewczak, J. M. (1994) Fractal analysis of ventilatory control in heterothermic mammals. The Physiologist, 37(5): A-64.

Millman, J. and J. M. Szewczak (1994) Nonlinear methods for the analysis of ventilatory control. The Physiologist, 37(5): A-64.

Szewczak, J. M. (1994) The scaling of apneic oxygen uptake in small heterothermic mammals. FASEB Journal. 8(4): A1-A1.

Szewczak, J. M. and F. L. Powell (1992) High altitude acclimatization in the bat, Eptesicus fuscus . FASEB Journal. 6(5): A1774.

Szewczak,  J.M. , and D.C. Jackson (1990) Acid-base state and control of ventilation in the torpid bat, Eptesicus fuscus. Abstract for fall, 1990 American Physiological Society meeting.

Szewczak, J.M., Jackson, D.C. (1989) Acid-base fluctuations due to intermittent breathing in the torpid big brown bat, Eptesicus fuscus. Am. Zool. 29(4): 138A.

Maginniss, L.A., D.L. Kilgore, J.M. Szewczak (1986) Blood oxygen transport in the burrowing owl Athene cunicularia. (abstract) Proc. Int. Union Physiol. Sci.

Talks, symposia, and field workshops

Bat acoustic monitoring training workshop. Mojave National Preserve, CSU Desert Studies Center, Zzyzyx, CA. October 2–4, 2016.

Eastern bats survey techniques workshop. Mammoth Cave National Park, KY. August 28–September 4, 2016.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Southwestern Research Station, Portal, AZ. May 22–29, 2016.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. August 1–5, 2016.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Southwestern Research Station, Portal, AZ. May 21–28, 2015.

Batpouri: Bat biology, conservation, and management, and why you should care about it. Whiskeytown National Recreation Area BioBlitz, Whiskeytown, CA. May 13, 2016.

Bat acoustic data management, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Wells, ME. April 7 –9, 2016.

Bat acoustic data management, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Duluth, MN. March 7–9, 2016.

Surveying Redwood Basal Hollows for Townsend’s Big-Eared Bats. California Department of Forestry, Big Basin Redwoods State Park, CA. February 10, 2016.

Bat acoustic data management, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Punta Gorda, FL. February 3–5, 2016.

Surveying Redwood Basal Hollows for Townsend’s Big-Eared Bats. California Department of Forestry, Mendocino, CA. December 8, 2016.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Mammoth Cave National Park, KY. September 1–17, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. California Department of Transportation, Sacramento, CA. September 8-10, 2015.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 14–17, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Montana Natural Heritage Program, Beartooth Wildlife Management Area, MT. June 15-17, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Black Hills National Forest, Rapid City, SD. June 8-10, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Southwestern Research Station, Portal, AZ. May 21–28, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Alton, IL. March 7–9, 2015.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Mammoth Cave National Park, KY. September 10–16, 2014.

Batpourri: an update on current issues in bat biology and conservation. Humboldt State University Wildlife Department Ecology Series. September 18, 2014.

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Southwestern Research Station, Portal, AZ. May 15–22, 2014.

Noninvasive acoustic monitoring of bats. The Wildlife Society Field Techniques Workshop. Yosemite National Park, CA. May 2–5, 2014.

Bat Ecology and Field Techniques Workshop. The Wildlife Society Bat Ecology and Field Techniques Workshop. California Department of Fish and Game Chimineas Ranch. May 29–June 1, 2014.

Acoustic identification of bats. Caveats and successes. Kentucky Bat Working Group Metting. November, 13, 2013.

Noninvasive acoustic monitoring of bats using SonoBat software. Terre Haute, IN. March 31–April 2, 2014.

Bats in peril: Why it matters and what we can do. Humboldt State University Biodiversity Conference. Arcata, CA. October 5, 2013. link link

Bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation and Management Workshop, Mammoth Cave National Park, KY. September 6–9, 2012.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. August 5–9 2013.

Noninvasive acoustic monitoring of bats using SonoBat software. Tirimbina Biological Reserve, Heredia, Costa Rica. September June 22–23, 2013.

Noninvasive acoustic monitoring of bats. The Wildlife Society Field Techniques Workshop. The Nature Conservancy Dye Creek Preserve, Los Molinos, CA. May 2–5, 2013.

Bat Ecology and Field Techniques Workshop. The Nature Conservancy Dye Creek Preserve, Los Molinos, CA. April 5–8, 2013.

Noninvasive acoustic monitoring of bats using SonoBat software. Pikeville, TN. February 11–13, 2013.

Noninvasive acoustic monitoring of bats using SonoBat software. Albany, NY. January 11–12, 2013.

Acoustic monitoring. Bat white-nose syndrome: Pathology, Epidemiology, Diagnostics, and Management. The Wildlife Society 19th Annual Conference, Portland Oregon, October 13, 2012.

Bats and transportation- assessment methods. Training workshop for Caltrans biologists. Sacramento, CA. September 10-12, 2012.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. August 13–17 2012.

Bat Ecology and Field Techniques Workshop. The Nature Conservancy Dye Creek Preserve, Los Molinos, CA. April 19–22, 2012.

Bats. Sleight of wing, magic in the dark. King Range National Conservation Area & Lost Coast Interpretive Association Winter Lecture Series, March 6, 2012.

Noninvasive acoustic monitoring of bats using SonoBat software. The Wildlife Society, Colorado Chapter. Grand Junction, CO. February 15, 2012.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. August 1–15 2011.

Noninvasive acoustic monitoring of bats. The Wildlife Society Field Techniques Workshop. Swanton Pacific Ranch, Davenport, CA. June 2–5, 2011.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, Tucson, AZ. May 19–24, 2011.

Noninvasive acoustic monitoring of bats using SonoBat software. Tucson, AZ. April 15–18, 2011.

Noninvasive acoustic monitoring of bats using SonoBat software. Gettysburg, PA. March 19–20, 2011.

Noninvasive acoustic monitoring of bats using SonoBat software. Laurel Caverns, PA. October 4-7, 2010.

Bats and transportation- assessment methods. Training workshop for Caltrans biologists. Sacramento, CA. September 14-16, 2010.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, Lava Beds National Monument, Tulelake, CA. August 5-10, 2010.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 14-18, 2010. Hines, OR.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 7-11, 2010. Ephrata, WA.

A determined determination of determinate growth in mice. UC White Mountain Research Station Physiological Ecology Symposium, Bishop, CA. June 4-6, 2010.

Physiological ecology and acoustic monitoring of bats. The Wildlife Society Field Techniques Workshop. Wildlands Conservancy Wind Wolves Preserve, Maricopa, CA. June 2-3, 2010.

Noninvasive acoustic monitoring of bats. The Wildlife Society Field Techniques Workshop. Wildlands Conservancy Wind Wolves Preserve, Maricopa, CA. May 20-23, 2010.

Bats and transportation- assessment methods. Training workshop for Caltrans biologists. San Bernardino, CA. August 11-13, 2009.

Physiological ecology and acoustic monitoring of bats. The Wildlife Society Bat Ecology and Field Techniques Workshop. California Department of Fish and Game Chimineas Ranch. July 29-August 1, 2009.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 22-26, 2010. Hines, OR.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 15-19, 2010. Ephrata, WA.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 20–24 2009.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, American Museum of Natural History Southwest Research Station, Portal, AZ. May 11-16, 2009.

An overview of tools for assessing preconstruction bat activity at proposed wind facilities. Western Bat Working Group Bats and Wind Energy Workshop, Austin, TX. April 15, 2009.

Bats 101. Western Bat Working Group Bats and Wind Energy Workshop, Austin, TX. April 14, 2009.

The red side of green power: wind turbines, bird, and bat mortality. Redwood Region Audubon Society, Eureka, CA. November 14, 2008.

Chiropterophily: bats pollinate and disperse seeds. Humboldt Botanical Gardens Foundation Pollinators Symposium. November 8, 2008.

Bats, sleight of wing magic in the dark. Miracles and concerns. CA Department of Fish and Game, Eureka, CA. September 9, 2008.

Bat ecology and field techniques. The Wildlife Society, UC Sagehen field station, Truckee, CA. September 4-7, 2008.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, Lava Beds National Monument, Tulelake, CA. July 24-29, 2008.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 14–18 2008.

Bat physiological ecology and conservation. Cal Poly, San Luis Obispo, CA. April 25, 2008.

The biology of bats. Cal Poly, San Luis Obispo, CA. April 25, 2008.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, Mammoth Cave National Park, KY. September 11-16, 2007.

Bat ecology and field techniques. The Wildlife Society, UC Sagehen field station, Truckee, CA. September 6-9, 2007.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 16–20 2007.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 25-29, 2007. White Salmon, WA.

Flying turtles and diving bats. Donald C. Jackson Symposium, Brown University, Providence, RI. June 23, 2007.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 18-22, 2007. Prineville, OR.

The red side of green power: wind turbines, bird, and bat mortality. UC White Mountain Research Station Physiological Ecology Symposium, Bishop, CA. June 3, 2007.

Unseen and unheard: Finding bats in the night sky. East Bay Science Café, Berkeley Natural History Museums, Berkeley, CA. March, 8, 2007.

Impacts of wind energy development on nocturnal species (birds and bats). Humboldt State University Department of Wildlife, February 5, 2007.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 24–30 2006.

US Forest Service Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. Beartooth Wildlife Management Area, MT. July 10-14, 2006. 

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, American Museum of Natural History Southwest Research Station, Portal, AZ. June 22-27, 2006.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. White Salmon, WA, June 12-16, 2006.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. Redmond, OR, June 5-9, 2006..

Acoustic monitoring of bats and acoustic species discrimination. Great Swamp National Wildlife Refuge, Morristown, NJ. June, 2, 2006.

Progress in Bat Monitoring and Assessments. SERDP symposium, "Preserving our Critical Natural Resources.” Washington, D.C., October 25, 2005,

Session Chair. North American Symposium for Bat Research, Sacramento, CA. 19-23 October, 2005.

Do wind turbines generate ultrasound that may attract bats? North American Symposium for Bat Research, Sacramento, CA. October 19-23, 2005.

Full-spectrum acoustic recognition of bats. The Wildlife Society Natural History and Management of Bats Symposium, Sacramento, CA. October 17-19, 2005.

The biology of bat echolocation. The Wildlife Society Natural History and Management of Bats Symposium, Sacramento, CA. October 17-19, 2005.

Physiological ecology and acoustic Monitoring of Bats. The Wildlife Society Bat Ecology and Field Techniques Workshop. University of California Hastings Natural Reserve, Carmel, CA. September 8-11, 2005.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, Barree, PA. August 8-1, 2005.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 11–16 2005.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 27- July 1, 2005, LaGrande, OR.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 20-24, 2005, Missoula, MT.

The physiological ecology of bats; acoustic monitoring of bats. May 21-23, 2005, Rapid City, SD.

Mines from a bat perspective: the physiological ecology of roosting. Bat Conservation International Bats and Mines Symposium, Reno, NV. May 3, 2005.

Ultrasonic communication in mammals. UC, Davis Road Ecology Seminar Series. February 28, 2005.

Advancing acoustic monitoring of bats. SERDP symposium, "Preserving our Critical Natural Resources.” Washington, D.C., December 2, 2004,

Assessing bat populations: Challenges and progress. HSU Wildlife Department Seminar series. October 21, 2004.

Physiological ecology and acoustic monitoring of bats. The Wildlife Society Bat Ecology and Field Techniques Workshop. University of California Hastings Natural Reserve. September 17-19, 2004. Carmel, CA.

The physiological ecology of bats; acoustic monitoring of bats. Bat Conservation and Forest Management Symposium, August 26-27, 2004, Spokane, WA.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 19–24 2004.

Pacific Northwest Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 17-20, 2004. La Grande, OR.

Advances in the acoustic monitoring of bats. American Society of Mammalogists. Arcata, CA. June 16, 2004.

The biology of bat echolocation, acoustic monitoring of bats, and acoustic species discrimination. Bat Conservation International Acoustic Monitoring Workshop, American Museum of Natural History Southwest Research Station, Portal, AZ. June 2-8, 2004.

Noninvasive bat monitoring. Tahoe National Forest, South Lake Tahoe, CA. May 15-16, 2004.

The physiological ecology of bats; Bat Conservation International Acoustic monitoring of bats. Bat Conservation and Forest Management Symposium, Eugene, OR, August 26-27, 2003.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 28–August 1 2003.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 14–20 2003.

Oregon Bat Grid training workshop, Physiological ecology, echolocation and acoustic monitoring of bats. June 17-20, 2003. La Pine, OR.

Causes and Consequences of pH Variability in Vertebrates, Experimental Biology 2003, April 11-15, San Diego, California.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. August 12–16 2002.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 22–26 2002.

Mono Basin Bird Chautauqua, June 21-23, 2002, http://www.birdchautauqua.org/ chautauquadetails.htm

Advanced analysis techniques for identifying bat species. International Bat Echolocation Symposium and Tutorial sponsored by Bat Conservation International. April 15-17, 2002 in Austin, Texas.

Bats of Eastern California. Mono Basin Bird Chautauqua, June 21-23, 2002, http://www.monolake.org/events/chautauqua/main.htm

Physiological ecology of bats. UC, Davis Ecology Department. September, 2001, 2002.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 16–20 2001.

Ecology and Conservation of California bats. UC WMRS Conservation Biology Symposium, 2001.

Control and Coordination of Breathing Rhythms and Mechanics Society for Experimental Biology: August, 2000, Cambridge, UK.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 24–28 2000.

What about Bats? Sierra Nevada Aquatic Research Laboratory, May, 2000.

Acid Base State in Small Mammals. Loma Linda University, December, 1999.

Acid Base State in Small Mammals. UC, Riverside, November, 1999.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 26–30 1999.

Chaos, fractals, and you. WMRS Lecture series. April, 1999.

Phenotypic and Genotypic Strategies to Chronic Hypoxia. Society for Integrative and Comparative Biologists, Denver, CO. January, 1999.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 27–31 1998.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 14–18 1997.

The Ecology and Conservation of California Bats. San Francisco State University. SFSU Field Campus. July 15–19 1996.

Professional recognition

2010 Certificate of Appreciation from the United States Forest Service Wings across the Americas program.

2009 recipient of the United States Forest Service Wings across the Americas award for outstanding achievement in bat conservation.