William Dvorak

Nilsson, O., Hodge, G. R., Frampton, L. J., Dvorak, W. S., & Bergh, J. (2020). Growth and modulus of elasticity of pine species and hybrids three years after planting in South Africa. SOUTHERN FORESTS, 82(4), 367–376. https://doi.org/10.2989/20702620.2020.1733769

Lopez, J. L., Abt, R. C., Dvorak, W. S., Hodge, G. R., & Phillips, R. (2018). Tree breeding model to assess financial performance of pine hybrids and pure species: deterministic and stochastic approaches for South Africa. NEW FORESTS, 49(1), 123–142. https://doi.org/10.1007/s11056-017-9609-1

Hodge, G. R., & Dvorak, W. S. (2015). Provenance variation and within-provenance genetic parameters in Eucalyptus urophylla across 125 test sites in Brazil, Colombia, Mexico, South Africa and Venezuela. TREE GENETICS & GENOMES, 11(3). https://doi.org/10.1007/s11295-015-0889-3

Koskela, J., Vinceti, B., Dvorak, W., Bush, D., Dawson, I. K., Loo, J., … Ramamonjisoa, L. (2014). [Review of Utilization and transfer of forest genetic resources: A global review]. FOREST ECOLOGY AND MANAGEMENT, 333, 22–34. https://doi.org/10.1016/j.foreco.2014.07.017

Brawner, J. T., Hodge, G. R., Meder, R., & Dvorak, W. S. (2014). Visualising the environmental preferences of Pinus tecunumanii populations. TREE GENETICS & GENOMES, 10(5), 1123–1133. https://doi.org/10.1007/s11295-014-0747-8

Leibing, C., Signer, J., Zonneveld, M., Jarvis, A., & Dvorak, W. (2013). Selection of Provenances to Adapt Tropical Pine Forestry to Climate Change on the Basis of Climate Analogs. FORESTS, 4(1), 155–178. https://doi.org/10.3390/f4010155

Mitchell, R. G., Wingfield, M. J., Hodge, G. R., Dvorak, W. S., & Coutinho, T. A. (2013). Susceptibility of provenances and families of Pinus maximinoi and Pinus tecunumanii to frost in South Africa. NEW FORESTS, 44(1), 135–146. https://doi.org/10.1007/s11056-012-9306-z

Hodge, G. R., Dvorak, W. S., & Tighe, M. E. (2012). Comparisons between laboratory and field results of frost tolerance of pines from the southern USA and Mesoamerica planted as exotics. SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, 74(1), 7–17. https://doi.org/10.2989/20702620.2012.683637

Wee, A. K. S., Li, C. H., Dvorak, W. S., & Hong, Y. (2012). Genetic diversity in natural populations of Gmelina arborea: implications for breeding and conservation. NEW FORESTS, 43(4), 411–428. https://doi.org/10.1007/s11056-011-9288-2

Hodge, G. R., & Dvorak, W. S. (2012). Growth potential and genetic parameters of four Mesoamerican pines planted in the Southern Hemisphere. SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, 74(1), 27–49. https://doi.org/10.2989/20702620.2012.686192

Espinoza, J. A., Hodge, G. R., & Dvorak, W. S. (2012). The potential use of near infrared spectroscopy to discriminate between different pine species and their hybrids. JOURNAL OF NEAR INFRARED SPECTROSCOPY, 20(4), 437–447. https://doi.org/10.1255/jnirs.1006

Dvorak, W. (2012). The strategic importance of applied tree conservation programs to the forest industry in South Africa. SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, 74(1), 1–6. https://doi.org/10.2989/20702620.2012.683635

Dvorak, W. S. (2012). Water use in plantations of eucalypts and pines: a discussion paper from a tree breeding perspective. INTERNATIONAL FORESTRY REVIEW, 14(1), 110–119. https://doi.org/10.1505/146554812799973118

Jetton, R. M., Dvorak, W. S., Potter, K. M., Whittier, W. A., & Rhea, J. (2011). Genetics and conservation of hemlock species threatened by the hemlock woolly adelgid. Proceedings of the 30th Southern Tree Improvement Conference, 81–87.

Potter, K. M., Jetton, R. M., Dvorak, W. S., Hipkins, V. D., Rhea, R., & Whittier, W. A. (2011). Widespread inbreeding and unexpected geographic patterns of genetic variation in eastern hemlock (Tsuga canadensis), an imperiled North American conifer. Conservation Genetics, 13(2), 475–498. https://doi.org/10.1007/s10592-011-0301-2

Potter, K. M., Jetton, R. M., Dvorak, W. S., Frampton, J., & Rhea, J. (2010). Ex situ seed collection represents genetic variation present in natural stands of Carolina hemlock. Proceedings of the Fifth Symposium on Hemlock Woolly Adelgid in the Eastern United States, 181–190.

Leibing, C., Zonneveld, M., Jarvis, A., & Dvorak, W. (2009). Adaptation of tropical and subtropical pine plantation forestry to climate change: Realignment of Pinus patula and Pinus tecunumanii genotypes to 2020 planting site climates. SCANDINAVIAN JOURNAL OF FOREST RESEARCH, Vol. 24, pp. 483–493. https://doi.org/10.1080/02827580903378642

Zonneveld, M., Jarvis, A., Dvorak, W., Lema, G., & Leibing, C. (2009). Climate change impact predictions on Pinus patula and Pinus tecunumanii populations in Mexico and Central America. FOREST ECOLOGY AND MANAGEMENT, 257(7), 1566–1576. https://doi.org/10.1016/j.foreco.2008.12.027

Mullin, T. J., Andersson, B., Bastien, J.-C., Beaulieu, J., Burdon, R. D., Dvorak, W. S., … Yanchuk, A. D. (2009). Economic importance, breeding objectives and achievements. In C. Plomion & J. Bousquet (Eds.), Genomics of industrial crops. New Hampshire, UK: Science Publishers.

Dvorak, W. S., Potter, K. M., Hipkins, V. D., & Hodge, G. R. (2009). Genetic Diversity and Gene Exchange in Pinus oocarpa, a Mesoamerican Pine with Resistance to the Pitch Canker Fungus (Fusarium circinatum). International Journal of Plant Sciences, 170(5), 609–626. https://doi.org/10.1086/597780

Jetton, R. M., Dvorak, W. S., Whittier, W. A., & Potter, K. M. (2009). Genetics and conservation of hemlock species threatened by the hemlock woolly adelgid. Proceedings of the 20th U.S. Department of Agriculture Interagency Research Forum on Invasive Species, 39–40.

Jetton, R. M., Dvorak, W. S., & Whittier, W. A. (2008). [Review of Ecological and genetic factors that define the natural distribution of Carolina hemlock in the southeastern United States and their role in ex situ conservation]. FOREST ECOLOGY AND MANAGEMENT, 255(8-9), 3212–3221. https://doi.org/10.1016/j.foreco.2008.01.032

Dvorak, W. S. (2008). Estamos mas cerca de entender la ascendencia de las poblaciones de la ?variante patula? en la Sierra Madre del sur, Mexico? Foresta Veracruzana, 10(1), 59–66.

Jetton, R. M., Hain, F. P., Dvorak, W. S., & Frampton, J. (2008). Infestation Rate of Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Among Three North American Hemlock (Tsuga) Species Following Artificial Inoculation. JOURNAL OF ENTOMOLOGICAL SCIENCE, 43(4), 438–442. https://doi.org/10.18474/0749-8004-43.4.438

Payn, K. G., Dvorak, W. S., Janse, B. J. H., & Myburg, A. A. (2008). Microsatellite diversity and genetic structure of the commercially important tropical tree species Eucalyptus urophylla, endemic to seven islands in eastern Indonesia. TREE GENETICS & GENOMES, 4(3), 519–530. https://doi.org/10.1007/s11295-007-0128-7

Jetton, R. M., Whittier, W. A., Dvorak, W. S., & Potter, K. M. (2008). Status of ex situ conservation efforts for eastern and Carolina hemlock in the southeastern United States. Proceedings of the 4th Symposium on Hemlock Woolly Adelgid, 81–89.

Dvorak, W. S., Hodge, G. R., & Payn, K. G. (2008, August). The conservation and breeding of Eucalyptus urophylla: a case study to better protect important populations and improve productivity. SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, Vol. 70, pp. 77–85. https://doi.org/10.2989/south.for.2008.70.2.3.531

Potter, K. M., Dvorak, W. S., Crane, B. S., Hipkins, V. D., Jetton, R. M., Whittier, W. A., & Rhea, R. (2007). Allozyme variation and recent evolutionary history of eastern hemlock (Tsuga canadensis) in the southeastern United States. New Forests, 35(2), 131–145. https://doi.org/10.1007/s11056-007-9067-2

Dvorak, W. S., Kietzka, E., Hodge, G. R., Nel, A., Santos, G. A., & Gantz, C. (2007). Assessing the potential of Pinus herrerae as a plantation species for the subtropics. FOREST ECOLOGY AND MANAGEMENT, 242(2-3), 598–605. https://doi.org/10.1016/j.foreco.2007.01.076

Payn, K. G., Dvorak, W. S., & Myburg, A. A. (2007). Chloroplast DNA phylogeography reveals the island colonisation route of Eucalyptus urophylla (Myrtaceae). Australian Journal of Botany, 55(7), 673. https://doi.org/10.1071/BT07056

Dvorak, W. S., Hodge, G. R., & Kietzka, J. E. (2007). Genetic variation in survival, growth, and stem form of Pinus leiophylla in Brazil and South Africa and provenance resistance to pitch canker. SOUTHERN HEMISPHERE FORESTRY JOURNAL, 69(3), 125–135. https://doi.org/10.2989/SHFJ.2007.69.3.1.351

Hodge, G. R., & Dvorak, W. S. (2007). Variation in pitch canker resistance among provenances of Pinus patula and Pinus tecunumanii from Mexico and Central America. NEW FORESTS, 33(2), 193–206. https://doi.org/10.1007/s11056-006-9023-6

Dvorak, W. S., Hamrick, J. L., & Gutierrez, E. A. (2005). The origin of Caribbean pine in the seasonal swamps of the Yucatan. INTERNATIONAL JOURNAL OF PLANT SCIENCES, 166(6), 985–994. https://doi.org/10.1086/449314

Hodge, G. R., & Dvorak, W. S. (2004, September). The CAMCORE international provenance/progeny trials of Gmelina arborea: genetic parameters and potential. NEW FORESTS, Vol. 28, pp. 147–166. https://doi.org/10.1023/B:NEFO.0000040942.34566.a7

Dvorak, W. S. (2004, September). World view of Gmelina arborea: opportunities and challenges. NEW FORESTS, Vol. 28, pp. 111–126. https://doi.org/10.1023/B:NEFO.0000040940.32574.22

Dvorak, W. S., Hodge, G. R., Billingham, M. R., & Boshier, D. H. (2003). Genetic variation in Bombacopsis quinata [Pachira quinata] and its use / Variacion genetica en Bombacopsis quinata y su uso. Bombacopsis Quinata : Un a?Rbol Maderable Para Reforestar.

Dvorak, W. S., Hamrick, J. L., Furman, B. J., Hodge, G. R., & Jordan, A. P. (2002). Conservation strategies for Pinus maximinoi based on provenance, RAPD and allozyme information. Forest Genetics, 9(4), 263.

Hodge, G. R., Dvorak, W. S., Uruena, H., & Rosales, L. (2002). Growth, provenance effects and genetic variation of Bombacopsis quinata in field tests in Venezuela and Colombia. FOREST ECOLOGY AND MANAGEMENT, 158(1-3), 273–289. https://doi.org/10.1016/s0378-1127(00)00720-9

Newton, A. C., Allnutt, T. R., Dvorak, W. S., Del Castillo, R. F., & Ennos, R. A. (2002). Patterns of genetic variation in Pinus chiapensis, a threatened Mexican pine, detected by RAPD and mitochondrial DNA RFLP markers. HEREDITY, 89, 191–198. https://doi.org/10.1038/sj.hdy.6800113

Hodge, G. R., & Dvorak, W. S. (2001). Genetic parameters and provenenance variation of Pinus caribaea var. hondurensis in 48 international trials. CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 31(3), 496–511. https://doi.org/10.1139/cjfr-31-3-496

Dvorak, W. S. (2001). Positioning tree improvement programs to utilize advances in new technologies. Southern African Forestry Journal, (190), 19. https://doi.org/10.1080/20702620.2001.10434111

Dvorak, W. S., Jordon, A. P., Hodge, G. P., & Romero, J. L. (2000). Assessing evolutionary relationships of pines in the Oocarpae and Australes subsections using RAPD markers. NEW FORESTS, 20(2), 163–192. https://doi.org/10.1023/A:1006763120982

Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative. (2000). Botha Hill, South Africa : Grow Graphics.

Hodge, G. R., & Dvorak, W. S. (2000). Differential responses of Central American and Mexican pine species and Pinus radiata to infection by the pitch canker fungus. NEW FORESTS, 19(3), 241–258. https://doi.org/10.1023/A:1006613021996

Hall, S. E., Dvorak, W. S., Johnston, J. S., Price, H. J., & Williams, C. G. (2000). Flow cytometric analysis of DNA content for tropical and temperate New World pines. ANNALS OF BOTANY, 86(6), 1081–1086. https://doi.org/10.1006/anbo.2000.1272

Dvorak, W. S., Gutierrez, E. A., Hodge, G. R., Romero, J. L., Stock, J., & Rivas, O. (2000). Pinus caribaea var. hondurensis. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 12). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Gutierrez, E. A., Osorio, L. F., Merwe, L., Kikuti, P., & Donahue, J. K. (2000). Pinus chiapensis. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 34). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Kietzka, J. E., Donahue, J. K., Hodge, G. R., & Stanger, T. K. (2000). Pinus greggii. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 52). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Kietzka, J. E., Stanger, T. K., & Mapula, M. (2000). Pinus herrerae. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 74). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Jordan, A. P., Rosa, J., & Hodge, G. R. (2000). Pinus jaliscana. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 86). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Stanger, T. K., & Romero, J. L. (2000). Pinus maximartinezii. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 96). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Gutierrez, E. A., Gapare, W. J., Hodge, G. R., Osorio, L. F., Bester, C., & Kikuti, P. (2000). Pinus maximinoi. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 106). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Gutierrez, E. A., Osorio, L. F., Hodge, G. R., & Brawner, J. T. (2000). Pinus oocarpa. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 128). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Hodge, G. R., Kietzka, J. E., Malan, F., Osorio, L. F., & Stanger, T. K. (2000). Pinus patula. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 148). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Kikuti, P., & Fier, I. (2000). Pinus pringlei. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 174). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Hodge, G. R., Gutierrez, E. A., Osorio, L. F., Malan, F. S., & Stanger, T. K. (2000). Pinus tecunumanii. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 188). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Jordan, A. P., Hodge, G. R., Romero, J. L., & Woodbridge, W. C. (2000). The evolutionary history of the Mesoamerican Oocarpae. In Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative (p. 1). Botha Hill, South Africa : Grow Graphics.

Dvorak, W. S., Hamrick, J. L., & Hodge, G. R. (1999). Assessing the sampling efficiency of ex situ gene conservation efforts in natural pine populations in Central America. Forest Genetics, 6(1), 21.

Ledig, F. T., Conkle, M. T., Bermejo-Velazquez, B., Eguiluz-Piedra, T., Hodgskiss, P. D., Johnson, D. R., & Dvorak, W. S. (1999). Evidence for an extreme bottleneck in a rare Mexican pinyon: Genetic diversity, disequilibrium, and the mating system in Pinus maximartinezii. EVOLUTION, 53(1), 91–99. https://doi.org/10.1111/j.1558-5646.1999.tb05335.x

Dvorak, W. S., Uruena, H., Moreno, L. A., & Goforth, J. (1998). Provenance and family variation in Sterculia apetala in Colombia. FOREST ECOLOGY AND MANAGEMENT, 111(2-3), 127–135. https://doi.org/10.1016/S0378-1127(98)00316-8

Moura, V. P. G., Dvorak, W. S., & Hodge, G. R. (1998). Provenance and family variation of Pinus oocarpa grown in the Brazilian cerrado. FOREST ECOLOGY AND MANAGEMENT, 109(1-3), 315–322. https://doi.org/10.1016/S0378-1127(98)00265-5

Dvorak, W. S., Rosa, J. A., Mapula, M., & Reyes, V. J. (1998). The ecology and conservation of Pinus jaliscana. Forest Genetic Resources, (26), 13.

Saborio, F., Dvorak, W. S., Donahue, J. K., & Thorpe, T. A. (1997). In vitro regeneration of plantlets from mature embryos of pinus ayacahuite. Tree Physiology, 17(12), 787–796. https://doi.org/10.1093/treephys/17.12.787

Dvorak, W. S., Donahue, J. K., & Hodge, G. R. (1996). Fifteen years of ex situ gene conservation of Mexican and Central American forest species by the CAMCORE cooperative. Forest Genetic Resources, (24), 15.

Dvorak, W. S., Donahue, J. K., & Vasquez, J. A. (1996). Provenance and progeny results for the tropical white pine, Pinus chiapensis, at five and eight years of age. New Forests, 12(2), 125.

Dvorak, W. S., Kietzka, J. E., & Donahue, J. K. (1996). Three-year survival and growth of provenances of Pinus greggii in the tropics and subtropics. FOREST ECOLOGY AND MANAGEMENT, 83(1-2), 123–131. https://doi.org/10.1016/0378-1127(95)03673-3

Dvorak, W. S., Donahue, J. K., & Vasquez, J. A. (1995). Early performance of CAMCORE introductions of Pinus patula in Brazil, Colombia and South Africa. Southern African Forestry Journal, (174), 23. https://doi.org/10.1080/00382167.1995.9629875

DVORAK, W. S., & ROSS, K. D. (1994). 3-YEAR GROWTH AND STABILITY OF HONDURAN PROVENANCES AND FAMILIES OF PINUS-TECUNUMANII. FOREST ECOLOGY AND MANAGEMENT, 63(1), 1–11. https://doi.org/10.1016/0378-1127(94)90243-7

Dvorak, W. S., Lambeth, C. C., & Li, B. L. (1993). Genetic and site effects on stem breakage in Pinus tecunumanii. New Forests, 7(3), 237. https://doi.org/10.1007/bf00127388

Dvorak, W. S., & Kellison, R. C. (1991). Annotated bibliography on the wood properties of Pinus tecunumanii. CAMCORE Bulletin on Tropical Forestry, (9), 16.

DVORAK, W. S. (1990). CAMCORE - INDUSTRY AND GOVERNMENTS EFFORTS TO CONSERVE THREATENED FOREST SPECIES IN GUATEMALA, HONDURAS AND MEXICO. FOREST ECOLOGY AND MANAGEMENT, 35(1-2), 151–157. https://doi.org/10.1016/0378-1127(90)90238-7

Dvorak, W. S., & Raymond, R. H. (1990). The taxonomic status of closely related closed cone pines in Mexico and Central America. New Forests, 4(4), 291. https://doi.org/10.1007/bf00119208

Dvorak, W. S., & Donahue, J. K. (1988). Pinus maximinoi seed collections in Mexico and Central America. CAMCORE Bulletin on Tropical Forestry, (4), 47.