NAME: Jack Russell Holt, II
Biology Department
Susquehanna University
Selinsgrove, PA 17870
phone: 570-372-4205
fax: 570-372-2751
email: holt@susqu.edu
EDUCATION:
Harding College, B.S., magna cum laude, June 1973 (Biology).
University of Oklahoma, Department of Zoology, M.S., May 1978 (Limnology) Dr. H.P. Brown, major advisor.
University of Oklahoma, Department of Botany and Microbiology, Ph.D., May 1981 (Phycology), Dr. Lois Pfiester, major advisor.
PROFESSIONAL EXPERIENCE:
| 1981-Present: | Professor of Biology, Susquehanna University, Biology Department. Granted tenure in 1987. Promoted to current rank in 2001. Ecology Program Director (2003-Present). Duties include teaching: Biogeodiversity, Science and Technology; Thought and Natural Science, Systematic Biology; Evolution; Phycology, and Limnology. |
| 1995 and 1997 (Summer): | Associate Professor of Biology, Eagle Hill Biological Station. Duties included teaching Freshwater Algae. |
| 1994-2001: | Biology Department Head at Susquehanna University. |
| 1981 and 1991 (Summer): | Assistant Professor of Botany, University of Oklahoma Biological Station. Duties included teaching Phycology. |
| 1979-1980: | Research Assistant, University of Oklahoma, Department of Botany and Microbiology. Duties included assisting for the Systematic Revision of the Dinophyceae, L.A. Pfiester and J.J. Skvarla, co-principal investigators. |
| 1978-1979: | Instructor, University of Oklahoma, Department of Botany and Microbiology. Duties included teaching sections of Biology for Teachers and General Botany. |
| 1977: | Research Assistant for zooplankton section of Environmental Impact Statement for the Grand River Dam Authority, Oklahoma. |
| 1973: | Research Assistant for Environmental Impact Statement for U.S. Army Corps of Engineers Red River Desalination Project. |
| 1973-1977: | Teaching Assistant, University of Oklahoma, Department of Zoology. Duties included assisting in General Zoology, Limnology and Parasitology. |
OTHER PROFESSIONAL ACTIVITIES:
| 2007-Present | Co-Director of Summer Science Institute with CSIU |
| 2002-Present | Active participant in Susquehanna River Heartland Coalition for Environmental Studies |
| 1999-2002 | Executive Committee, Northeast Algal Society |
| 1997 | School to Work Program |
| 1997 to 2002 | NOVA workshops, Cleveland, Ohio; University of Maryland, Cape Canaveral, Arlington, and Johnson Space Center. sponsored by NASA |
| 1991-1993 | Strong Foundations Project; A project sponsored by the AAC&U. |
| 1987-1988 | Participant and author of a review paper for TIME Project. Funded by the US EPA. |
| 1987 (Summer) | Recombinant DNA Technology Course, Indiana University. |
| 1985-1995 | Member of the Pennsylvania State Rare Plants Committee. |
| 1984-1990 | Faculty advisor for the Campus Arboretum Project. |
| 1984 (Spring) | Chautauqua Short Course on the Endosymbiotic Origin of Eukaryotic Cells. |
| 1982-Present | Service on numerous university committees including: Faculty Development and Research, Honors Program, Sub-committee of Curriculum Committee to design and implement the New Core, Curriculum Committee, Faculty Salary Committee, and Faculty Affairs Committee, Freshman Year Task Force, Diversity Task Force, Education Committee, Ad Hoc Committee to Review the Core Curriculum. |
| 1982 (Spring) | Co-teacher in workshop for science teachers in Pennsylvania public schools to explore ways to increase the research experience in the public schools. Sponsored by the Pennsylvania Academy of Sciences. |
| 1979-Present | Reviewer for the Transactions of the American Microscopical Society, Journal of Phycology, American Journal of Botany, Journal of the Pennsylvania Academy of Sciences, Journal of Evolutionary Protistology, Journal of Freshwater Ecology, and the Northeastern Naturalist. |
AWARDS AND HONORS:
| 2000 | Joel Cunningham Service Learning Award |
| 1986 | Lindback Foundation Award for Distinguished Teaching |
| 1985 | Silver Cup Award for Arboretum Project |
| 1977 | Ortenberger Award for outstanding graduate student in the biological sciences at the University of Oklahoma |
| 1970 | Alpha Chi Omega Scholastic Honor Society |
PROFESSIONAL SOCIETIES:
AMERICAN BOTANICAL SOCIETY
AMERICAN INSTITUTE OF BOLOGICAL SCIENCES
AMERICAN SOCIETY OF LIMINOLOGY AND OCEANOGRAPHY
INTERNATIONAL ASSOCIATION FOR GREAT LAKES RESARCH
NORTHEAST ALGAL SOCIETY
PENNSYLVANIA ACADEMY OF SCIENCES
PHYCOLOGICAL SOCIETY OF AMERICA
SUSQUEHANNA RIVER HEARTLAND COALITION FOR ENVIRONMENTAL STUDIES
THESIS AND DISSERTATION TITLES:
| 1977 | Evidence for vertical migration of motile phytoplankters in an Oklahoma Reservoir. University of Oklahoma M.S. Thesis. |
| 1981 | Studies on freshwater species of the dinoflagellate genera, Peridinium and Peridiniopsis. University of Oklahoma Ph.D. Dissertation. |
GRANTS:
| 1982 | An examination of Peridinium willei populations to check culture-induced aneuploidy. $1,000.00 from Faculty Research Committee. |
| 1983 | A comparison of two ground-water fed ponds. $1,000.00 from Faculty Research Committee. |
| 1984 | An examination of phosphate-induced aneuploidy in Peridinium willei. $1,200.00 from Faculty Research Committee. |
| 1986 | A test of methods to be used in vegetation sampling and mapping in Union and Snyder counties. $1,500.00 from Faculty Research Committee. |
| 1986-87 | Plant survey proposal to survey sites in Snyder and Union counties for Pennsylvania rare, threatened and tentatively undetermined plants in Snyder and Union counties. $1,500.00 from WILD Resource Conservation Fund. Bureau of Forestry. |
| 1987 | Supplement to the plant survey proposal for Snyder and Union counties. $1,000.00 from the WILD Plant Mini-Grant Fund, Bureau of Forestry. |
| 1987 | Literature review to explore the value of freshwater dinoflagellates as indicators of acidification. $1,000.00 form U.S. Environmental Protection Agency, TIME Project. |
| 1990 | A search for dinocysts in Pleistocene pingo deposits of Central Pennsylvania. $1,000.00 from AMOCO. |
| 1994 | The Susquehanna River and Cheasapeake Bay Watershed Action Study: submitted by William Bechtel, Selinsgrove Area School District to Pennsylvania Department of Environmental Resources. |
| 1993-2008 | Saturday Science Project with Patricia Nelson (1993-2002), (with Ben Hayes 2001-2002; with Jennifer Elick 2003-2006; with Brenda Bartlett 2005-2006); with Jennifer Elick, Brenda Bartlett, and Anne Reeves (2007-2008). $150,000.00 from the Pennsylvania Space Grant Consortium. |
| 1997 | Project NOVA with Patricia Nelson. $24,000.00 from NASA NOVA. |
| 1998 | Project NOVA Phase II with Patricia Nelson. $24,000 from NASA NOVA. |
| 2001 | Project NOVA Phase III. $3,000.00 from NASA NOVA |
| 2006 | Saturday Science as an Externship Experience for Pre-Service Secondary Education Students in the Sciences. $5,000.00 from The Pennsylvania Space Grant Consortium |
| 2006 | Shamokin Creek Baseline Study with Tammy Tobin-Janzen and Christopher Janzen. $10,000.00 Degenstein Foundation |
| 2007 | Shamokin Creek Baseline Study with Tammy Tobin-Janzen and Christopher Janzen. $10,000.00 Degenstein Foundation |
| 2008 | Shamokin Creek and Middlecreek Baseline Studies with Michael Bilger, Tammy Tobin-Janzen and Christopher Janzen. $22,000.00 Degenstein Foundation |
| 2006-2008 | Growing Greener II Grant with Michael Bilger in partnership with the DEP, Snyder County Conservation District, the Union County Conservation District, and the Lower Penns Creek Watershed Association. $20,000.00 |
SCIENTIFIC TALKS AND PRESENTATIONS:
| 1977 | A “red tide” in Texas. Oklahoma Academy of Sciences. |
| 1978 | Evidence for vertical migration of motile phytoplankters in an Oklahoma reservoir. Oklahoma Academy of Sciences. |
| 1980 | Dinoflagellate Ecology. University of Oklahoma Biological Station Seminar. |
| 1980 | Subtle cyclomorphic changes in Ceratium hirundinella (O.F.M.) Dujardin: A response to temperature? Great Plains Limnological Society. |
| 1980 | A technique for counting the chromosomes of thecate dinoflagellates. Oklahoma Academy of Sciences. |
| 1981 | Cyclomorphosis in the freshwater dinoflagellate, Ceratium hirundinella. University of Oklahoma Biological Station. |
| 1981 | Studies on the freshwater species of the dinoflagellate genera: Peridinium and Peridiniopsis. Austin College. |
| 1982 | Evidence for aneuploidy in the freshwater dinoflagellate, Peridinium willei. Pennsylvania Academy of Sciences. |
| 1983 | Meiosis, mitosis and the origin of sex. Susquehanna University Faculty Colloquium. |
| 1983 | Evidence for aneuploidy in the freshwater dinoflagellate species, Peridinium willei. American Phycological Society with AIBS. |
| 1983 | Dinoflagellate ecology and systematics. Northeast Algal Society. |
| 1983 | A review of evolutionary mechanisms. Thiel College. |
| 1983 | The movement and storage of lead in oat plants grown in lead-rich soils. Pennsylvania Academy of Sciences (with Kurt Schagen). |
| 1984 | Dinoflagellate ecology. Bucknell University. |
| 1985 | Evidence for “extra” chromosomes which serve as phosphate storage bodies in Peridinium willei. Pennsylvania Academy of Sciences (with Stephen Anderson). |
| 1986 | Evidence for “extra” chromosomes which serve as phosphate storage bodies in Peridinium willei. Bucknell University. |
| 1986 | The dinoflagellate nucleus. Dickinson College. |
| 1988 | A search for rare plants in Pennsylvania’s Union and Snyder counties. Pennsylvania Academy of Sciences (with John Clark). |
| 1988 | Comparisons between the fall phytoplankton communities in a hard water and a soft water lake in Union County Pennsylvania. Pennsylvania Academy of Sciences (with Fred Lubnow). |
| 1990 | Dinoflagellate ecology. AMOCO Research division seminar. |
| 1991 | The effects of experimental liming and acidification on the phytoplankton communities of an acid-sensitive lake in Union County Pennsylvania (with Carolyn Fuss). |
| 1991 | A recommendation for the use of dinoflagellates in sedimentation studies of acid-sensitive lakes (with Jeffrey Hartranft). |
| 1991 | The use of aquatic vascular plants as indicators of acid sensitivity. Pennsylvania Academy of Sciences (with Jerrell Boyer and Don Padgett). |
| 1991 | Community relationships between members of the duckweed family (Lemnaceae) in Pardee Lake, Union County, Pennsylvania. Pennsylvania Academy of Sciences (with Don Padgett). |
| 1992 | Evidence for phagotrophy in the armored dinoflagellate, Peridinium inconspicuum. Pennsylvania Academy of Sciences. |
| 1992 | Substrate preferences by the zygotes of three Peridinium species. Pennsylvania Academy of Sciences. (with Jeff Merrell). |
| 1992 | Phytoplankton responses to changes in ANC (acid neutralizing capacity) and artificially increased diversity in an acid-sensitive lake in Union County, Pennsylvania. Pennsylvania Academy of Sciences (with David Seaborn and Jeff Merrell). |
| 1992 | Effects of increased diversity and change in acid neutralizing capacity (ANC) on three Peridinium species. Pensylvania Academy of Sciences. (with David Seaborn and Jeff Merrell). |
| 1992 | Playing science. National Collegiate Honors Conference. Los Angeles. |
| 1993 | Characterization of substrate selection in three Peridinium species. Pennsylvania Academy of Sciences (with Russ Fincher). |
| 1993 | Observations of phagotrophy by a freshwater dinoflagellate, Peridinium inconspicuum. Pennsylvania Academy of Sciences. (with Shannon McGinnis and David Vaders). |
| 1993 | Observations of phagotrophy by a freshwater dinoflagellate, Peridinium inconspicuum. Pennsylvania Academy of Sciences. (with David Vaders and Shannon McGinnis). |
| 1993 | Observations of phagotrophy by a freshwater dinoflagellate, Peridinium inconspicuum. Northeast Algal Society. (with David Vaders and Shannon McGinnis). |
| 1994 | The effects of nitrogen enrichment on the phytoplankton community composition of an acid sensitive lake. Pennsylvania Academy of Sciences. (Rick Fanella, et al). |
| 1994 | Biotic and physical comparisons between two small lakes on sandstone and limestone substrates. Pennsylvania Academy of Sciences. (Jeff King, et al). |
| 1994 | Attachment of freshwater dinoflagellates relative to substrate orientation. Pennsylvania Academy of Sciences. (with Thomas Murphy, et al). |
| 1995 | Hydrological and agricultural impacts on nutrient concentrations in a high-order stream in central Pennsylvania. Pennsylvania Academy of Sciences (with Heather Stull, Christopher Cirmo, Jennifer Wolny). |
| 1995 | Observations of phagotrophy by a freshwater dinoflagellate, Peridinium inconspicuum. American Zoological Society. (with and Shannon McGinnis). |
| 1996 | Comparisons of biotic, physical, and chemical changes in an oligotrophic lake and a eutrophic lake during the fall season. Pennsylvania Academy of Sciences (with Jennifer Wolny, et al.). |
| 1996 | Comparisons of biotic, physical, and chemical changes in an oligotrophic lake and a eutrophic lake during the fall season. Northeast Algal Symposium, Woods Hole (with Kevin Gawblick, et al.). |
| 1996 | Diurnal patterns of vertical migration, attachment and mitosis of three freshwater Peridinium species. Pennsylvania Academy of Sciences (with Tara Martz, et al.). |
| 1996 | Diurnal patterns of vertical migration, attachment and mitosis of three freshwater Peridinium species. Northeast Algal Symposium (with Maryann Perles, et al.). |
| 1997 | The characterization of a constructed wetland as a hybrid of a creek and pond system. Pennsylvania Academy of Sciences (Muscio, Cara; Kokolis; Neal; Vorhauer). |
| 1997 | A baseline analysis of Penns Creek focusing on attached algae. Pennsylvania Academy of Sciences. (Matthew Wargo; Cirmo). |
| 1997 | Comparisons between biological, chemical, and physical characteristics of a lake and a constructed wetland. Pennsylvania Academy of Sciences. (Kokolis, Michelle; Muscio; Neal; Vorhauer; Cirmo). |
| 1998 | Saturday Science. National Science Teachers Association. (with Patricia Nelson and Heather Vorhauer). |
| 1998 | Determination of a stream reach in a ridge and valley creek using diatom periphyton communities. Pennsylvania Academy of Sciences. (Matthew Wargo; Eggler, Anderson, Buda). |
| 1998 | Evidence for selective attachment by epiphyton species on aquatic vascular plants. Pennsylvania Academy of Sciences. (Emily Eggler; Wargo, Anderson). |
| 1998 | Longitudinal and temporal characterization of Penns Creek from Coburn to Weikert, PA: Physical and chemical parameters. Pennsylvania Academy of Sciences. (Anthony Buda; Cirmo). |
| 1998 | Learning to read nature, field identification of common algae as indicators for pond management. Pennsylvania Department of Parks and Recreation. |
| 1998 | Learning to read nature, field identification of common algae as indicators for pond management. Workshop for PA County Extension Agents. |
| 1998 | Using algae as indicators of long-term ecological conditions in lakes and streams. Presented to the Faculty of Biology at Yaroslavl State University, Russia. |
| 1999 | Examination of founder effect in segregated groundwater seeps in a constructed wetland. Pennsylvania Academy of Sciences. (Joshua Affrime). |
| 1999 | Definition of stream reach in Middle Creek based on diatom periphyton communities. Pennsylvania Academy of Sciences. (Todd Stem). |
| 2001 | Definition of stream reach in Middle Creek based on diatom periphyton communities. North East Algal Symposium. (Andrew Hardick). |
| 2001 | Downstream effects of two reservoirs in a central Pennsylvania stream. Pennsylvania Academy of Sciences and North East Algal Symposium. (Charlotte Murray). |
| 2002 | The usefulness of alfalfa hay in controlling phosphate and algal blooms. Pennsylvania Academy of Sciences and North East Algal Symposium. (Megan Ferguson) |
| 2003 | Islands in the stream: diatoms and island biogeography. North East Algal Symposium and the Pennsylvania Academy of Sciences. (Sarah Kiemle). |
| 2004 | Island biogeography at a microscale: species-area relationships between diatom taxa in Penns Creek, Pennsylvania. Regional Ecological Society of America Meeting and North East Algal Symposium. (Sidra Blake & Tom Leonard). |
| 2004 | Acid mine and sewage effluent: the effects of Shamokin Creek on the Susquehanna River. Regional Ecological Society of America Meeting and North East Algal Symposium. (Meagan Brennan). |
| 2005 | Island Biogeography at a Microscale: Species-Area Relationships of Diatom Communities in Penns Creek, Snyder Co, PA. North East Algal Symposium and the Pennsylvania Academy of Sciences (Jill Sands and Chris Resch) |
| 2005 | Some Biological and Chemical Consequences of AMD, Sewage Treatment, and Thermal Pollution below the confluence of the West and North Branches of the Susquehanna River at Byers Island, Northumberland Co, PA. North East Algal Symposium and the Pennsylvania Academy of Sciences (Chia Pai) |
| 2006 | A Baseline Study of Shamokin Creek, An Acid Mine Impacted Stream in Central PA. North East Algal Symposium and NCUR (Laura Wirpza and Nicole Sweeney) |
| 2007 | A Baseline Study Using Biofilm Communities in Shamokin Creek, An Acid Mine Impacted Stream in Central PA. North East Algal Symposium and NCUR (Christopher Gehman) |
| 2007 | A Baseline Study of Lower Penns Creek Using Habitat Assessment and Benthic Macroinvertebrate Assemblages (Jacob Tomlinson) |
| 2008 | A Baseline Study Using Biofilm Communities in Shamokin Creek, An Acid Mine Impacted Stream in Central PA. North East Algal Symposium and Pennsylvania Academy of Sciences (Sarah Heath) |
| 2008 | A Second Year Study of Lower Penns Creek Using Habitat Assessment, Benthic Macroinvertebrate, and Periphyton Assemblages. Pennsylvania Academy of Sciences (Nathan Moore) |
SCIENTIFIC PUBLICATIONS:
| 1978 | Holt, J. R., D.S. White, and A.P. Covich. Discovery of Leptodora kindtii (Focke) (Crustacea: Cladocera) in Oklahoma and Texas. Southwestern Naturalist 23 (4): 686-688. |
| 1978 | Pfiester, L.A. and J.R. Holt. A freshwater “red tide” in Oklahoma and Texas. Southwestern Naturalist 23 (1): 103-110. |
| 1981 | Holt, J.R. and L.A. Pfiester. A survey of auxotrophy in five freshwater dinoflagellates (Pyrrhophyta). Journal of Phycology 17: 415-416. |
| 1982 | Holt, J.R. and L.A. Pfiester. A technique for counting chromosomes of armored dinoflagellates, and chromosome numbers of six freshwater dinoflagellate species. American Journal of Botany 69 (7): 1165-1168. |
| 1984 | Pfiester, L.A., P. Timpano, J.J. Skvarla, and J.R. Holt. Sexual reproduction and meiosis in Peridinium inconspicuum Lemmermann (Dinophyceae). American Journal of Botany 71 (8): 1121-1127. |
| 1987 | Holt, J.R. The use of four common armored dinoflagellates as indicators of the early stages of acidification. Report prepared for the U.S. Environmental Protection Agency, Corvallis Environmental Research Laboratory, Corvallis, OR. 35 pp. |
| 1988 | Kimmel, B.L. and J.R. Holt, Nutrient availability and patterns of polymorphism in the freshwater dinoflagellate, Ceratium hirundinella. Archiv fur Hydrobiologie. |
| 1990 | Holt, J. R., J. Boyer, H. Cooley, K. Engel, C. Fuss, J. Grove, J. Hartranft, D. Padgett, D. Rosick and P. Weidman. 1990. The effects of Selenium enrichment on the phytoplankton assemblage of Faylor Lake, an acid sensitive lake in central Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 63: 214. |
| 1991 | Padgett, D. J. and J. R. Holt. Community relationships between members of the Duckweed family (Lemnaceae) in Pardee Lake, Union Co., Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 64: 202. |
| 1991 | Boyer, J., D. J. Padgett and J. R. Holt. The use of aquatic vascular plants as indicators of acid sensitivity. Journal of the Pennsylvania Academy of Sciences. 64: 183. |
| 1991 | Fuss, C.L. and J.R. Holt. 1991. The effects of experimental liming and acidification on the phytoplankton communities of an acid sensitive lake in Union County, Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 64: 190. |
| 1991 | Hartranft, J. and J.R. Holt. 1991. A recommendation for the use of Dinoflagellates in sedimentation studies of acid sensitive lakes. Journal of the Pennsylvania Academy of Sciences. 64: 191. |
| 1992 | Holt, Jack R., Jeffrey R. Merrell, and David W. Seaborn. Evidence for Phagotrophy in the Armored Dinoflagellate, Peridinium inconspicuum. Journal of the Pennsylvania Academy of Sciences. 65(supplement): 183. |
| 1992 | Merrell, Jeffrey R., David W. Seaborn, and Jack R. Holt. Substrate Preference by three Zygotes of Three Peridinium Species. Journal of the Pennsylvania Academy of Sciences. 65(supplement): 192. |
| 1992 | Hans, Holly, Janine Claycomb, Jeff Merrell, Shannon McGinnis, Dave Seaborn, Dave Vaders, Barbara Vonderhey, and Jack R. Holt. Phytoplankton Responses to Changes in ANC and Artificially Increased Diversity in an Acid Sensitive Lake in Union County, Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 65(supplement): 181. |
| 1992 | Seaborn, David W., Jeffrey R. Merrell, and Jack R. Holt. Effects of Increased Diversity and Change in Acid Neutralizing Capacity (ANC) on Three Peridinium Species of an Acid Sensitive Lake in Union County, Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 65(supplement): 199. |
| 1994 | Fanella, Rick, Jeffrey B. King, Seth Baublitz, Carla Helfrich, Tara Bulvin, and Jack R. Holt. Effects of Nitrogen Enrichment on the Phytoplankton Community Composition of an Acid-Sensitive Lake. Journal of the Pennsylvania Academy of Sciences. 67(supplement): 177. |
| 1994 | Holt, Jack R., Jeffrey R. Merrell, David Seaborn, and Jeffrey Hartranft. Population dynamics and substrate selection by three Peridinium species. Journal of Freshwater Ecology 9(2):117-128. |
| 1994 | King, Jeffrey B., Seth Baublitz, Rick Fanella, Thomas Murphy, Chris Dietz, Brandon Naples, Carla Helfrich, Daniel Morgan, Tara Bulvin, Aaron Shurtleff, and Jack R. Holt. Biotic and Physical Comparisons Between Two Small Lakes on Sandstone and Limestone Substrates. Journal of the Pennsylvania Academy of Sciences. 67(supplement): 182. |
| 1994 | Murphy, Thomas, Brandon Naples, Dan Morgan, Chris Dietz, Aaron Shurtleff, and Jack R. Holt. Attachment of Freshwater Dinoflagellates Relative to Substrate Orientation. Journal of the Pennsylvania Academy of Science. 67(supplement): 189. |
| 1995 | Stull, Heather, Christopher P. Cirmo, Jennifer Wolny, and Jack R. Holt. Hydrological and Agricultural Impacts on Nutrient Concentrations in a High-Order Stream in Central Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 68(supplement): 195. |
| 1996 | Harris, Jennifer, Christopher P. Cirmo, Jack R. Holt, and Jennifer Wolny. Characterization of phytoplankton communities in relation to physical and chemical changes through the seasons in ponded and flowing waters. Journal of the Pennsylvania Academy of Sciences. 69(supplement): 149. |
| 1996 | Wolny, Jennifer, Kevin Gawblick, Tara Martz, Jennifer Harris, Michelle Kokolis, Cara Muscio, Maryann Perles, Jack R. Holt, and Christopher P. Cirmo. Comparison of biotic, physical, and chemical changes in an oligotrophic lake and a eutrophic lake during the fall season. Journal of the Pennsylvania Academy of Sciences. 69(supplement):171. |
| 1996 | Martz, Tara, Kevin Gawblick, Maryann Perles, Jennifer Wolny, and Jack R. Holt. Diurnal patterns of vertical migration, attachment and mitosis of three freshwater Peridinium species. Journal of the Pennsylvania Academy of Sciences. 69(supplement): 155-156. |
| 1997 | Muscio, Cara, Michelle R. Kokolis, Krista V. Neal, Heather A. Vorhauer, Keenan L. Hall, and Jack R. Holt. The Characterization of a Constructed Wetland as a Hybrid of a Creek and Pond System. Journal of the Pennsylvania Academy of Sciences. 70(supplement): 184. |
| 1997 | Wargo, Matthew J., Jack R. Holt, and Christopher P. Cirmo. A baseline analysis of Penns Creek focusing on attached algae. Journal of the Pennsylvania Academy of Sciences. 70(supplement): 198. |
| 1997 | Kokolis, Michelle, Cara Muscio, Krista V. Neal, Heather A. Vorhauer, Keenan L. Hall, Jack R. Holt, and Christopher P. Cirmo. Comparisons between biological, chemical, and hysical characteristics of a lake and a constructed wetland. Journal of the Pennsylvania Academy of Sciences. 70(supplement): 179. |
| 1998 | Wargo, Matthew J., Emily R. Eggler, Brian M. Anderson, and Jack R. Holt. Determination of stream reach in a ridge and valley creek using diatom periphyton communities. Journal of the Pennsylvania Academy of Sciences. 71(supplement): 197-198. |
| 1998 | Eggler, Emily R., Matthew J. Wargo, Brian M. Anderson, and Jack R. Holt. Evidence for selective attachment by epiphyton species on aquatic vascular plants. Journal of the Pennsylvania Academy of Sciences. 71(supplement): 171. |
| 1998 | Buda, Anthony R., Christopher P. Cirmo, and Jack R. Holt. A longitudinal and temporal characterization of Penns Creek from Coburn to Weikert, PA: physical and chemical parameters. Journal of the Pennsylvania Academy of Sciences. 71(supplement): 167-168. |
| 1998 | Wargo, Matthew J. and Jack R. Holt. Determination of stream reaches in a ridge and valley creek using diatom periphyton communities. Journal of Freshwater Ecology 13(4): 447-456. |
| 1999 | Affrime, Joshua N. and Jack R. Holt. Examination of the founder effect in segregated groundwater seeps in a constructed wetland. Journal of the Pennsylvania Academy of Sciences. 72(supplement): 148. |
| 1999 | Stem, Todd W. and Jack R. Holt. Definition of stream reach in Middle Creek based on diatom periphyton community composition. Journal of the Pennsylvania Academy of Sciences. 72(supplement): 181-182. |
| 2001 | Hardick, Drew and Jack R. Holt. 2000. Determination of stream reach in Middle Creek based on diatom periphyton community composition. Journal of the Pennsylvania Academy of Sciences. 74(supplement). |
| 2001 | Murray, Charlotte and Jack R. Holt. 2000. Downstream Effects of Two Small Hypolimnetic-Release Dams on the Algal Community in Middle Creek, a Third Order Stream in Central Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 74(supplement). |
| 2002 | Megan Ferguson and Jack R. Holt. 2002. The usefulness of alfalfa hay in controlling phosphate and algal blooms. Journal of the Pennsylvania Academy of Sciences. 75(supplement). |
| 2003 | Kiemle, Sarah, Jack R. Holt, and Jeffrey Graham. Islands in the stream: diatoms and island biogeography. Journal of the Pennsylvania Academy of Sciences. 76(supplement). |
| 2004 | Бабаназарова О.В., Ляшенко О.А., Лазарева В.И., Сигарева В.И., Зубишина А.А., Холт Д., Смирнова С.М., Сиделев С.И., Калинина О.Е. Результаты мониторинга планктонного сообщества оз. Неро. |
| 2005 | Sands, Jill, Chris Resch, Sarah Kiemle, Jack R. Holt, and Jeffrey Graham. Island Biogeography at a Microscale: Species-Area Relationships of Diatom Communities in Penns Creek, Snyder Co, PA. Journal of the Pennsylvania Academy of Sciences. 78(supplement). |
| 2005 | Pai, Chia and Jack R. Holt. Some Biological and Chemical Consequences of AMD, Sewage Treatment, and Thermal Pollution below the confluence of the West and North Branches of the Susquehanna River at Byers Island, Northumberland Co, PA. Journal of the Pennsylvania Academy of Sciences. 78(supplement). |
| 2006 | Tomlinson, Jacob R., Michael D. Bilger, and Jack R. Holt. A Baseline Study of Lower Penns Creek Using Habitat Assessment and Benthic Macroinvertebrate Assemblages. Journal of the Pennsylvania Academy of Sciences. 79(supplement). |
| 2007 | Moore, Nathan, Michael D. Bilger, Jacob R. Tomlinson, and Jack R. Holt. A Second Year Study of Lower Penns Creek Using Habitat Assessment and Benthic Macroinvertebrate Assemblages. Journal of the Pennsylvania Academy of Sciences. 80(supplement). |
| 2007 | Heath, Sarah, and Jack R. Holt. A Baseline Study Using Biofilm Communities in Shamokin Creek, an AMD Impacted Stream in Northumberland County, Pennsylvania. Journal of the Pennsylvania Academy of Sciences. 80(supplement). |
OTHER PUBLICATIONS:
| 2001 | Holt, Jack R. and Patricia A. Nelson. Paths of Science, Explorations for Science Students and Educators. KendallHunt Publishing Company. Dubuque, Iowa (ISBN: 0-7872-7726-5). |
| 2006 | Holt, Jack R. Paths of Science, Explorations for Science Students and Educators. 2nd edition. Whittier Publications, Inc. Island Park, NY (ISBN: 1-57604-251-0). |
last revised: 12/17/08