Dr. Jean Krejca specializes in                                            
                                              karst biology and is a partner in Zara  
                                              Environmental, LLC. She holds USFWS                          
                                              endangered species permit (TE028652-0).










RESEARCH INTERESTS:
Cave biology, cave photography, and field guide
Sequoia and King's Canyon National Parks cave biology inventory
Aerial surveys using a powered paraglider
Using aquifer organism genes as a dye tracer in karst
Cave exploration and cartography projects
Cave diving

HONORS AND AWARDS:
Mitchell Award (National Speleological Society) - August 1993, awarded for best
scientific paper.
Rope climbing awards (National Speleological Society) - August 1993, first place   
     120 and 30m 3 knot system.
Cartography award (National Speleological Society) - August 1993, honorable
mention for map of Clay Cave, Arkansas.
Top 5 Graduating Seniors in College of Science, SIUC, spring 1995.
Phi Kappa Phi national and regional fellowship, spring 1997.
Karst Research Grant, Cave Research Foundation, 1999.
UT Zoology Departmental and Continuing Fellowship, summer/fall 1998, spring
1999, fall/spring 2001-02.
Tinker Fellowship, UT Institute for Latin American Studies, summer 1999.
National Speleological Society Fellow Award, summer 2001, for dedication to the
goals of the Society.
UT Environmental Studies Institute, spring 2001, for interdisciplinary research.

Ralph Stone Award (National Speleological Society) spring 2001, for cave biology
research.

SELECTED PROFESSIONAL EXPERIENCE:
United States Fish and Wildlife Service: Ecologist/Cave Invertebrate Specialist.
Provide technical expertise for maintenance of endangered cave species in
Texas. Includes work with landowners and developers regarding compliance with
the Endangered Species Act. 11/00-present.

George Veni and Associates: Biologist. Performed faunal inventories of caves for
endangered species monitoring in Texas. September 1998.

Texas Memorial Museum: Ropework specialist and biologist. Assisted geologists,
cave divers, and other biologists at remote in-cave sites in study of troglobitic
fauna. Funded by a grant from the U.S. Mexico Foundation for Science. March
1997.

North Carolina State Museum: Biologist. Performed an inventory of bats, using
mistnetting and telemetry. August 1996.

3D/Environmental: Biologist, field team leader. Performed an inventory of bats,
May 1996 - August 1996.

Illinois Natural History Survey: Technical Assistant. Surveyed the status of an
Illinois endemic cave adapted amphipod, Gammarus acherondytes, for the U.S.
Fish and Wildlife Service. May 1995.

Parsons Engineering Science, Inc.: Scientist. Cave bat inventory in Nashville,
Tennessee. April 1994 - May 1994.

Illinois Natural History Survey: Field Assistant. Performing a status survey of the
endemic Illinois Cave Amphipod, Gammarus acherondytes. May 1993 -
September 1993.

Illinois Natural History Survey: Mammalogist. Conducted a comprehensive faunal
inventory of Illinois caves in relation to groundwater quality. Organized and
designed the inventory, and sampled 98 sites for vertebrates and
invertebarates, obtained data on a variety of water quality parameters. Assisted in
production of final publication (see below). February 1992 - October 1993.

SELECTED PUBLICATIONS:
Krejca, J.K. 2003. The Mexican Blindcat (Prietella phreatophila): Research and
Exploration in the Groundwater. American Currents Vol. 29 No. 3, pp
5-11.(available as pdf file [1.1 mb])

Czaplewski, N. J., J. Krejca, and T. E. Miller. 2003. Late quaternary bats
(Mammalia: Chiroptera) from Cebada Cave, Chiquibul Cave system, Belize. In
Press. Caribbean Journal of Science, vol 39(1)

Trajano, E., N. Mugue, J. K. Krejca, C. Vidthayanon, D. Smart and R. Borowsky.
2002. Habitat, distribution, ecology and behavior of cave balitorids from Thailand
(Teleostei: Cypriniformes). Ichthyological Exploration of Freshwaters
13(2):169-184. (available as pdf file [3.5 mb])

Hendrickson, D.A., J.K. Krejca and J.M.R. Martinez. 2001. Mexican Blindcats,
genus Prietella (Siluriformes: Ictaluridae): an overview of recent explorations.
Environmental Biology of Fishes 62: 315-337. (available as pdf file [840 kb])

Burr, B.M., G.L. Adams, J. Krejca, R.J. Paul and M.L. Warren, Jr. 2001.
Cavernicolous sculpins of the Cottus carolinae Species Group in Perry County,
Missouri: Distriburion, External Morphology, and Conservation Status Review.
Environmental Biology of Fishes 62: 279-296.

Hendrickson, D.A. and J. K. Krejca. 2000. Cavefish and subterranean freshwater
biodiversity in northeastern Mexico and Texas. In: Freshwater Ecoregions of North
America: A Conservation Assessment, edited by R. A. Abell, D. M. Olson, E.
Dinerstein, P. T. Hurley, J. T Diggs, W. Eichbaum, S. Walters, W. Wetengel, T.
Allnutt, C. J. Loucks, and P. Hedao, Washington, D.C.: Island Press, p. 41-43.

Hofmann, J.E., J.E. Gardner, J.K. Krejca, and J.D. Garner. 1999. Summer records
and a Maternity Roost of the Southeastern Myotis (Myotis austroriparius) in Illinois.
Transactions of the Illinois State Academy of Science, Volume 92, 1 and 2, pp.
95-107.

Webb, D. W., L. M. Page, S. J. Taylor, and J. K. Krejca. 1998. The current status
and habitats of the Illinois Cave Amphipod, Gammarus archerondytes Hubricht
and Makin (Crustacea: Amphipoda). Journal of Cave and Karst Studies
60(3):172-178.

Feldhamer, G.A., J.O. Whittaker, J.K. Krejca and S.J. Taylor. 1995. Food of the
Evening Bat (Nycticeius humeralis) and Red Bat (Lasiurus borealis) from Southern
Illinois. Transactions of the Illinois State Academy of Science. Vol. 88:3 and 4, pp.
139-143.

Webb, D.W., S.J. Taylor, and J.K. Krejca. 1994. The Biological Resources of
Illinois Caves and Other Subterranean Environments. Technical Report
ILENR/RE-EH-94/06, Illinois Natural History Survey, Center for Biodiversity. ix +
157 pages.

SELECTED PRESENTATIONS:
Krejca, J. K. (presentor), D. A. Hendrickson, and S. J. Taylor. 1999. Using Prietella
phreatophila (Ictaluridae)
and other cave organisms to follow groundwater in Texas and Mexico. 31st Annual
Meeting of the Desert Fishes Council (18 to 21 November, Ciudad Victoria,
Tamaulipas, Mexico).

Hendrickson D.A., Krejca J.K. Notes on biogeography, ecology and behavior of
Mexican blind catfish, genus Prietella (Ictaluridae). Journal of Caves & Karst
Studies 59:166. National Speleological Society annual meeting, Sullivan,
Missouri, August 1997.

Bats: dispelling myths. Herrin City Library, Herrin, Illinois, June 1995.

Taylor, S. J., J. K. Krejca, D. W. Webb, and J. E. Gardner. 1994. A biological
inventory and water quality analysis of Illinois caves and other subterranean
environments. Presented at the Missouri Academy of Science
annual meeting cosponsered by the Missouri Speleological Survey. Cape
Girardeau, MO. April 29-30, 1994.

Cavernicolous sculpins of the Cottus carolinae species group (Pisces: Cottidae)
from Perry County, MO. Presented at the Missouri Academy of Science annual
meeting cosponsered by the Missouri Speleological
Survey. Cape Girardeau, MO. April 29-30, 1994.

Cavernicolous sculpins of the Cottus carolinae species group (Pisces: Cottidae)
from Perry County, MO. National Speleological Society annual meeting,
Pendleton, Oregon, August 1993.

Caves and Bats: fragile resources of the Cache River basin. Cache River
Workshop, Carbondale, Illinois 1993.

The fauna of Illinois caves Mississippi Karst Tour, Waterloo, Illinois, April 1993.
Mistnetting and bat handling. University of Illinois, October 1992

Illinois caves and cave life. World of Science Lecture Series, Staerkel
Planetarium, Champaign, Illinois, April 1992.

EXPEDITION CAVING:
União Paulista de Espeleologia. Summer 1995. Cave mapping in central Brazil
karst.

Proyecto Espeleológico Purificación. Winter 1995-present. Mapping and
performing biological inventories in the area of Mexico's longest cave system.

Coahuila, Nuevo Leon, & Tamaulipas, Mexico. March, August 1997; March, June,
November 1998; March, July 1999 Biological studies of troglobitic Mexican blind
cave catfish.

Chiquibul, Belize. May 1998, May 1999. Cave mapping, cave passage dating
(paleomagnetic clay, Uranium/Thorium speleothem), and biological collections in a
large, remote cave system on the Belize/Guatamala border.

See: Miller, T. April 2000. Chiquibul Cave. National Geographic Magazine.
197(4)54-71.

Also see: National Geographic images on the web.
Lechugilla Cave, New Mexico. September 1998 and October 1999. One week
(each visit) doing restoration and survey work.

Gunung Buda Project, Malaysia. January through March 2000. Assisted with a
volunteer resource inventory for the Sarawak Forest Department in order to help
them create a new national park. Cave surveys and biological inventories were
performed.

OTHER RELEVANT QUALIFICATIONS:
Vertical caving: Proficent at vertical techniques and rigging ropes, both European
and American styles
Cave diving: Fully cave certified by NSS-CDS (cave diving section)
Cave survey: Proficient in any role on a survey team (tape, instruments, sketch)
Cartography: Experienced cartographer, with many published cave maps
CPR/First Aid certification: Current
National Cave Rescue Commission: Participated in training seminars in Monroe
County, Illinois (1993) and
Perry County, Missouri (1994).
Our Employees
EDUCATION:
PhD. University of Texas, Austin, doctoral research
focused on troglobites of Texas and Mexico.
B.S. in Zoology. Southern Illinois University with
departmental honors for cave sculpin research, May
1995.