Book Chapter
- T. H. Kunz, M. Betke, N. I. Hristov, and M. Vonhof. Methods for assessing colony size, population size, and relative abundance of bats. In T. H. Kunz and S. Parsons, editors, Ecological and Behavioral Methods for the Study of Bats. 2nd Edition. Johns Hopkins University Press, Baltimore, Maryland, 2009. pdf.
Abstracts:
- N. Hristov, M. Betke, and T. H. Kunz. "Conservation and management of the Brazilian free-tailed bat: colony size and activity patterns using thermal imaging." Symposium on the "Protection and Management of Rare and Endangered Subterranean Fauna," co-located with the 15th International Congress of Speleology, Kerrville, Texas USA, July 2009.
- T. H. Kunz, J. C. Chau, Z. Wu, L. Hong, J. D. Reichard, M. Betke, and T. D. C. Little. "A Novel, Remote-Controlled BatCam for Censusing Small Colonies of Bats." 38th Annual North American Symposium on Bat Research (NASBR 2008), Scranton, PA, October 2008. Abstract. Poster.
- N. I. Hristov, L. C. Allen, E. Gillam, M. Betke, Z. Wu, and T. H. Kunz. "Mechanisms of self-organization in flying Brazilian free-tailed bats" (Tadarida brasiliensis). In the Proceedings of the 38th Annual North American Symposium on Bat Research (NASBR), Scranton, PA, October 2008.
- N. I. Hristov, L. C. Allen, E. Gillam, M. Betke, Z. Wu, and T. H. Kunz. "Mechanisms of self-organization in flying Brazilian free-tailed bats" (Tadarida brasiliensis). The 45th Annual Meeting of the Animal Behavior Society (ABS), Snowbird, UT, August 2008.
- N. I. Hristov, M. Betke, and T. H. Kunz. "Applications of Thermal Infrared Imaging in Field Biology." Symposia and Oral Abstracts. Integrative and Comparative Biology, 47(Supplement 1):e1--e152, December 2007. Oral presentation at The Society for Integrative and Comparative Biology Annual Meeting, SICB 2008, San Antonio, TX, January 2-6, 2008. Abstract.
- L. Premerlani, M. Betke, S. Sclaroff, and T. H. Kunz. "Stereoscopic Reconstruction and Analysis of Infrared Videos of Bats." International Conference on Complex Systems ICCS 2007, October 28 - November 2, Boston, MA. Abstract.
- T. H. Kunz, N. I. Hristov, and M. Betke. "Seasonal Emergence Behavior of Brazilian Free-tailed Bats at Carlsbad Caverns." International Conference on Complex Systems ICCS 2007, October 28 - November 2, Boston, MA. Abstract.
- N. I. Hristov, M. Betke, L. Premerlani, M. Procopio, and T. H. Kunz. "Thermal Imaging Reveals Highly Variable Nightly and Seasonal Activity Patterns of Brazilian Free-tailed Bats at Carlsbad Caverns." XIV International Bat Research Conference (IBRC) and the 37th Annual North American Symposium on Bat Research (NASBR), Mérida, 19-23 August 2007.
- N. I. Hristov, M. Betke, and T. H. Kunz. "Lessons in History: Colony Size and Population Decline of Brazilian Free-Tailed Bats at Carlsbad Caverns," Society for Integrative and Comparative Biology (SICB), 2007 Annual Meeting, Phoenix, AZ, January 2007, Abstract.
- N. I. Hristov, M. Betke, and T. H. Kunz. "Lessons in History: Colony Size and Population Decline of Brazilian Free-Tailed Bats at Carlsbad Caverns," 36th Annual North American Symposium on Bat Research (NASBR), Wilmington, NC, October, 2006. pdf.
- L. B. Premerlani, M. Betke, N. Hristov, J. J. Magee, J. Reichard, S. Sclaroff, T. H. Kunz. "Stereoscopic Reconstruction of Flight Paths of Foraging Bats Using Multiple Thermal Infrared Cameras," 36th Annual North American Symposium on Bat Research (NASBR), Wilmington, NC, October, 2006. pdf.