William Stephen Dvorak

Works (73)

Updated: April 4th, 2024 19:45

2020 journal article

Growth and modulus of elasticity of pine species and hybrids three years after planting in South Africa

SOUTHERN FORESTS, 82(4), 367–376.

By: O. Nilsson*, G. Hodge n, L. Frampton n, W. Dvorak n & J. Bergh*

author keywords: green density; MOE; Pinus; plantations
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: January 19, 2021

2018 journal article

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.

By: J. Lopez n, R. Abt n, W. Dvorak n, G. Hodge n & R. Phillips n

author keywords: Pine hybrids; Tree-breeding model; Financial performance; Growth models; Stochastic approach; Management regimes
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

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).

By: G. Hodge n & W. Dvorak n

author keywords: Genetic parameters; Provenance; Genotypex environment interaction; Conservation status; Type B correlations; Meta-analysis; Eucalyptus urophylla
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2014 review

Utilization and transfer of forest genetic resources: A global review

[Review of ]. FOREST ECOLOGY AND MANAGEMENT, 333, 22–34.

By: J. Koskela*, B. Vinceti*, W. Dvorak n, D. Bush*, I. Dawson*, J. Loo*, E. Kjaer*, C. Navarro ...

author keywords: Reproductive material; Plantations; Introduced species; Access and benefit sharing; Nagoya Protocol
TL;DR: The implementation of the Nagoya Protocol on access to genetic resources and benefit sharing (ABS) may significantly change current transfer practices in the forestry sector by increasing transaction costs and the time needed to lawfully obtain forest genetic resources for R&D purposes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Visualising the environmental preferences of Pinus tecunumanii populations

TREE GENETICS & GENOMES, 10(5), 1123–1133.

By: J. Brawner*, G. Hodge n, R. Meder* & W. Dvorak n

author keywords: Genotype by environment interaction; Provenance; Response profiles; Climatic adaptation; Genetic conservation; Forest genetic resources
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Selection of Provenances to Adapt Tropical Pine Forestry to Climate Change on the Basis of Climate Analogs

FORESTS, 4(1), 155–178.

By: C. Leibing*, J. Signer*, M. Zonneveld*, A. Jarvis* & W. Dvorak n

author keywords: provenance trials; site quality modelling; management decision support tools; climate similarity; growth prediction
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Susceptibility of provenances and families of Pinus maximinoi and Pinus tecunumanii to frost in South Africa

NEW FORESTS, 44(1), 135–146.

By: R. Mitchell*, M. Wingfield*, G. Hodge n, W. Dvorak n & T. Coutinho*

author keywords: Camcore; Genetic diversity; Frost susceptibility; South Africa; Pinus maximinoi; Pinus tecunumanii
Source: Web Of Science
Added: August 6, 2018

2012 journal article

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.

By: G. Hodge n, W. Dvorak n & M. Tighe n

author keywords: adaptability; cold hardiness; electrolyte leakage; frost tolerance; relative conductivity
TL;DR: Rankings of pure species and varieties should be useful to predict frost tolerance of pine hybrids, and the methodology shows promise for future experiments to quantify cold tolerance and genetic variation among hybrid progeny. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Genetic diversity in natural populations of Gmelina arborea: implications for breeding and conservation

NEW FORESTS, 43(4), 411–428.

By: A. Wee*, C. Li*, W. Dvorak n & Y. Hong*

author keywords: SSR; Gmelina arborea; Genetic diversity; Genetic structure; Plantation; Tree improvement
TL;DR: The genetic diversity analysis revealed highly polymorphic loci, a good level of genetic diversity and the deficiency of heterozygotes in G. arborea populations evidenced by positive fixation index and deviation from Hardy–Weinberg Equilibrium in all loci and most populations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

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.

By: G. Hodge n & W. Dvorak n

author keywords: genetic correlation; genetic variation; heritability; tree breeding
TL;DR: For all species, the best provenance produced 10–20% more volume than the population mean, and additional genetic gain could be made by family and within-family selection in an intensive tree-breeding effort. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

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.

By: J. Espinoza n, G. Hodge n & W. Dvorak n

author keywords: hybridisation; introgression; hybrid verification; pine needles
TL;DR: NIR spectroscopy can be used as an effective tool to distinguish between pure pine species and their “hybrids” using discriminant analysis and it is suggested that it will also distinguish hybrids from their parents. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

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.

By: W. Dvorak n

author keywords: adaptability; ex situ conservation; climate change
TL;DR: The design is based on maintaining an effective population size of approximately 30 with the goal to capture alleles at high frequencies as well as to include a number of rare alleles in the ex situ plantings to maintain well-adapted genetic material for future deployment. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Water use in plantations of eucalypts and pines: a discussion paper from a tree breeding perspective

INTERNATIONAL FORESTRY REVIEW, 14(1), 110–119.

By: W. Dvorak n

author keywords: breeding; drought hardiness; water use; genomic selection; clones
TL;DR: The general findings from catchment studies on water uptake in pines and eucalypts are presented and how tree breeders might use results to further the development of drought hardy varieties grown in seasonally dry environments are discussed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2011 conference paper

Genetics and conservation of hemlock species threatened by the hemlock woolly adelgid

Proceedings of the 30th Southern Tree Improvement Conference, 81–87.

By: R. Jetton, W. Dvorak, K. Potter, W. Whittier & J. Rhea

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

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.

By: K. Potter n, R. Jetton n, W. Dvorak n, V. Hipkins*, R. Rhea* & W. Whittier n

author keywords: Phylogeography; Pleistocene; Migration; Population genetics; Microsatellite; Bottleneck
TL;DR: Efforts to conserve eastern hemlock genetic material should emphasize the capture of broad adaptability that occurs across the geographic range of the species, as well as genetic variability within regions with the highest allelic richness and heterozygosity, such as the Southern Appalachians and New England, and within disjunct populations that are genetically distinct. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: August 6, 2018

2010 conference paper

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.

By: K. Potter, R. Jetton, W. Dvorak, J. Frampton & J. Rhea

Source: NC State University Libraries
Added: August 6, 2018

2009 article

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.

By: C. Leibing*, M. Zonneveld*, A. Jarvis* & W. Dvorak n

author keywords: Climate change impact predictions; height growth; management decision support tools; provenance trials; site quality modelling
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Climate change impact predictions on Pinus patula and Pinus tecunumanii populations in Mexico and Central America

FOREST ECOLOGY AND MANAGEMENT, 257(7), 1566–1576.

By: M. Zonneveld*, A. Jarvis*, W. Dvorak n, G. Lema* & C. Leibing*

author keywords: Adaptive ability; Climate change; Climate envelope models; Model validation; Provenance trials; Species distribution ranges
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 chapter

Economic importance, breeding objectives and achievements

In C. Plomion & J. Bousquet (Eds.), Genomics of industrial crops. New Hampshire, UK: Science Publishers.

By: T. Mullin, B. Andersson, J. Bastien, J. Beaulieu, R. Burdon, W. Dvorak, J. King, T. Kondo ...

Ed(s): C. Plomion & J. Bousquet

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

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.

By: W. Dvorak*, K. Potter n, V. Hipkins n & G. Hodge n

author keywords: Pinus tecunumanii; Pinus patula; microsatellite markers; gene flow; biogeography; hybridization
TL;DR: Results indicate that P. oocarpa exhibits average to above‐average levels of genetic diversity ( relative to other conifers) across its geographic range in Mesoamerica. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: August 6, 2018

2009 conference paper

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.

By: R. Jetton, W. Dvorak, W. Whittier & K. Potter

Source: NC State University Libraries
Added: August 6, 2018

2008 review

Ecological and genetic factors that define the natural distribution of Carolina hemlock in the southeastern United States and their role in ex situ conservation

[Review of ]. FOREST ECOLOGY AND MANAGEMENT, 255(8-9), 3212–3221.

By: R. Jetton*, W. Dvorak* & W. Whittier

author keywords: Tsuga caroliniana; gene conservation; Adelges tsugae
TL;DR: Results indicate that based on analysis of 15 populations, Carolina hemlock is found on predominantly sandy-clay loam soils but occurs on a wider range of soil textural groups than previously thought. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

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.

By: W. Dvorak

Source: NC State University Libraries
Added: August 6, 2018

2008 journal article

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.

By: R. Jetton n, F. Hain n, W. Dvorak n & J. Frampton n

author keywords: Adelges tsugae; Tsuga caroliniana; Tsuga canadensis; Tsuga heterophylla; host susceptibility
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

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.

By: K. Payn n, W. Dvorak n, B. Janse & A. Myburg*

author keywords: SSR; breeding; conservation; Eucalypt
TL;DR: Gene flow among the populations is likely responsible for the apparent weak influence of geographic insularity on the genetic diversity and structure of the island species. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 conference paper

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.

By: R. Jetton, W. Whittier, W. Dvorak & K. Potter

Source: NC State University Libraries
Added: August 6, 2018

2008 article

The conservation and breeding of Eucalyptus urophylla: a case study to better protect important populations and improve productivity

Dvorak, W. S., Hodge, G. R., & Payn, K. G. (2008, August). SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, Vol. 70, pp. 77–85.

By: W. Dvorak n, G. Hodge* & K. Payn*

author keywords: Camcore; conservation status; disease; genetic diversity
TL;DR: An ex situ conservation strategy to protect populations that are most threatened but also show the greatest productivity across countries is developed and it is suggested that volcanism played an important role in its distribution and levels of genetic diversity on the islands. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Allozyme variation and recent evolutionary history of eastern hemlock (Tsuga canadensis) in the southeastern United States

New Forests, 35(2), 131–145.

By: K. Potter n, W. Dvorak n, B. Crane*, V. Hipkins*, R. Jetton n, W. Whittier n, R. Rhea*

author keywords: genetic diversity; gene conservation; migration; threatened species; allozyme
TL;DR: The results suggest that the glacial refuge area for eastern hemlock was likely located east of the southern Appalachian Mountains, and indicate that ex situ conservation seed collections should be concentrated in these areas of higher diversity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: August 6, 2018

2007 journal article

Assessing the potential of Pinus herrerae as a plantation species for the subtropics

FOREST ECOLOGY AND MANAGEMENT, 242(2-3), 598–605.

By: W. Dvorak n, E. Kietzka, G. Hodge n, A. Nel*, G. Santos & C. Gantz

author keywords: climatic zones; provenances; genetic parameters
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Chloroplast DNA phylogeography reveals the island colonisation route of Eucalyptus urophylla (Myrtaceae)

Australian Journal of Botany, 55(7), 673.

By: K. Payn n, W. Dvorak n & A. Myburg*

TL;DR: Chloroplast haplotype diversity exhibited a decreasing trend from east to west in the species’ range, consistent with an east-to-west colonisation route across the seven islands, a study of the colonisation patterns of a tropical tree species among an island archipelago. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2007 journal article

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.

By: W. Dvorak*, G. Hodge* & J. Kietzka*

author keywords: climatic models; heritability; vegetative propagation
TL;DR: Pinus leiophylla is a relatively common pine that occurs in the mountains of western and central Mexico and is as susceptible to PCF as P. patula but exhibited superior survival to seed sources from other locations in Mexico when grown on cold sites in South Africa and superior stem form across all locations. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Variation in pitch canker resistance among provenances of Pinus patula and Pinus tecunumanii from Mexico and Central America

NEW FORESTS, 33(2), 193–206.

By: G. Hodge n & W. Dvorak n

author keywords: tree diseases; provenance variation; artificial inoculation
TL;DR: Provenance variation in pitch canker resistance could be useful when making selection and breeding decisions with P. tecunumanii species, and in both species, low altitude sources demonstrated more resistance than those from high elevation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

The origin of Caribbean pine in the seasonal swamps of the Yucatan

INTERNATIONAL JOURNAL OF PLANT SCIENCES, 166(6), 985–994.

By: W. Dvorak n, J. Hamrick n & E. Gutierrez n

author keywords: Mayans; Tikal; archeology; allozymes; genetic diversity
TL;DR: Genetic analyses indicate that El Pinal represents a population of ancient origin, and the climatic model indicates thatEl Pinal might have belonged to a larger historic distribution of Caribbean pine that occurred in the Yucatán when climates were drier than today. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2004 article

The CAMCORE international provenance/progeny trials of Gmelina arborea: genetic parameters and potential

Hodge, G. R., & Dvorak, W. S. (2004, September). NEW FORESTS, Vol. 28, pp. 147–166.

By: G. Hodge n & W. Dvorak n

author keywords: genetic gain; heritability; provenance variation
TL;DR: Early results from the provenance/progeny trials in Colombia, Costa Rica, Guatemala, Indonesia, Mexico and Venezuela, which were the first international collections of gmelina that were by mother tree and also the first ever to be made in Myanmar, show sufficient genetic variability to make good gains in breeding. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2004 article

World view of Gmelina arborea: opportunities and challenges

Dvorak, W. S. (2004, September). NEW FORESTS, Vol. 28, pp. 111–126.

By: W. Dvorak n

author keywords: breeding; conservation; plantations; silviculture; wood properties
TL;DR: Development of clones resistant to insect and disease attacks as a cost effective means to maintain plantation stocking and productivity and development of one-stop pollination techniques to increase pollination success rates and reduce the work loads in breeding programs are met. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

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.

By: W. Dvorak, G. Hodge, M. Billingham & D. Boshier

Ed(s): . J. Cordero & D. Boshier

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Conservation strategies for Pinus maximinoi based on provenance, RAPD and allozyme information

Forest Genetics, 9(4), 263.

By: W. Dvorak, J. Hamrick, B. Furman, G. Hodge & A. Jordan

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

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.

By: G. Hodge n, W. Dvorak n, H. Uruena* & L. Rosales

author keywords: genetic correlation; heritability; coefficient of relationship; genotype x environment interaction; additive variance; dominance variance; tree improvement
TL;DR: Ten provenance/progeny tests of Bombacopsis quinata were established in Venezuela and Colombia using open-pollinated seed collected from throughout its natural range using seed from crosses made in a second-generation seed orchard, with average survival of all tests approximately 80%, with the local source from Colombia having slightly better survival in Colombia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Patterns of genetic variation in Pinus chiapensis, a threatened Mexican pine, detected by RAPD and mitochondrial DNA RFLP markers

HEREDITY, 89, 191–198.

By: A. Newton*, T. Allnutt*, W. Dvorak n, R. Del Castillo* & R. Ennos*

author keywords: white pine; Pinus strobus var. chiapensis; genetic variation; conservation
MeSH headings : DNA, Mitochondrial; Genetic Variation; Guatemala; Mexico; Phylogeny; Pinus / genetics; Polymorphism, Restriction Fragment Length; Random Amplified Polymorphic DNA Technique
TL;DR: To assess the extent of genetic variation within and between populations of this species, samples were obtained from throughout the natural range and analysed using random amplified polymorphic DNA (RAPD) and mtDNA RFLPs markers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

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.

By: G. Hodge* & W. Dvorak*

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Positioning tree improvement programs to utilize advances in new technologies

Southern African Forestry Journal, (190), 19.

By: W. Dvorak n

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Assessing evolutionary relationships of pines in the Oocarpae and Australes subsections using RAPD markers

NEW FORESTS, 20(2), 163–192.

By: W. Dvorak n, A. Jordon n, G. Hodge n & J. Romero n

author keywords: gene conservation; introgression; migration; provenance trials
TL;DR: An evolutionary scenario is proposed that suggests that an ancestor of Oocarpae migrated south through Mexico and Central America, as well as east across the southern US, with the two paths converging in Florida or the Caribbean. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 book

Conservation and testing of tropical and subtropical forest tree species by the CAMCORE Cooperative

Botha Hill, South Africa : Grow Graphics.

William Dvorak

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

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.

By: G. Hodge n & W. Dvorak n

author keywords: genetic variation; tree breeding; gene conservation; disease resistance; forest pathology; Fusarium; pitch canker
TL;DR: Seedlings from a wide array of 23 species, varieties, and geographic races were screened for resistance topitch canker using artificial inoculation in agreenhouse, finding a number of closed-cone pine species were generally veryresistant, with survival approaching 100%. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Flow cytometric analysis of DNA content for tropical and temperate New World pines

ANNALS OF BOTANY, 86(6), 1081–1086.

By: S. Hall*, W. Dvorak n, J. Johnston*, H. Price* & C. Williams*

author keywords: C-values; genome size; gymnosperms; conifers; Pinus spp.; latitudinal variation; megagametophytes
TL;DR: Genome size variation paralleled taxonomic classification more closely than latitudinal origin and was substantial for tropical hard pines P. oocarpa andP. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, E. Gutierrez, G. Hodge, J. Romero, J. Stock & O. Rivas

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, E. Gutierrez, L. Osorio, L. Merwe, P. Kikuti & J. Donahue

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, J. Kietzka, J. Donahue, G. Hodge & T. Stanger

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, J. Kietzka, T. Stanger & M. Mapula

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, A. Jordan, J. Rosa & G. Hodge

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, T. Stanger & J. Romero

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, E. Gutierrez, W. Gapare, G. Hodge, L. Osorio, C. Bester, P. Kikuti

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, E. Gutierrez, L. Osorio, G. Hodge & J. Brawner

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, G. Hodge, J. Kietzka, F. Malan, L. Osorio & T. Stanger

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, P. Kikuti & I. Fier

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

By: W. Dvorak, G. Hodge, E. Gutierrez, L. Osorio, F. Malan & T. Stanger

Source: NC State University Libraries
Added: August 6, 2018

2000 chapter

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.

Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

Assessing the sampling efficiency of ex situ gene conservation efforts in natural pine populations in Central America

Forest Genetics, 6(1), 21.

By: W. Dvorak, J. Hamrick & G. Hodge

Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

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.

By: F. Ledig*, M. Conkle*, B. Bermejo-Velazquez*, T. Eguiluz-Piedra*, P. Hodgskiss*, D. Johnson*, W. Dvorak n

author keywords: endangered species; isozymes; linkage disequilibrium; outcrossing; rarity
TL;DR: Mating system analysis indicated a significant but low level of selling; the multilocus outcrossing rate, tm, was 0.816; the mean of single locus estimates, ts, was smaller, perhaps suggesting mating among relatives, although the difference between tm and ts was not statistically significant. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Provenance and family variation in Sterculia apetala in Colombia

FOREST ECOLOGY AND MANAGEMENT, 111(2-3), 127–135.

By: W. Dvorak*, H. Uruena, L. Moreno & J. Goforth

author keywords: dry zone; provenance variation; wood specific gravity
TL;DR: Leaf initiation and leaf fall occurred in the introduced Central American sources earlier than in the local Colombian provenance and their timing appeared partly out of phase with the onset of the wet and dry seasons. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Provenance and family variation of Pinus oocarpa grown in the Brazilian cerrado

FOREST ECOLOGY AND MANAGEMENT, 109(1-3), 315–322.

By: V. Moura, W. Dvorak n & G. Hodge n

author keywords: pine; breeding; selection; genetic gain; heritability; interspecific variation
TL;DR: Comparison of results from this test with other CAMCORE P. oocarpa trials in Colombia and Venezuela suggest that both provenance×site and family×site interactions can be of biological importance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

The ecology and conservation of Pinus jaliscana

Forest Genetic Resources, (26), 13.

By: W. Dvorak, J. Rosa, M. Mapula & V. Reyes

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

In vitro regeneration of plantlets from mature embryos of pinus ayacahuite

Tree Physiology, 17(12), 787–796.

By: F. Saborio*, W. Dvorak n, J. Donahue n & T. Thorpe*

TL;DR: A plantlet regeneration protocol was developed for Pinus ayacahuite var. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Fifteen years of ex situ gene conservation of Mexican and Central American forest species by the CAMCORE cooperative

Forest Genetic Resources, (24), 15.

By: W. Dvorak, J. Donahue & G. Hodge

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Provenance and progeny results for the tropical white pine, Pinus chiapensis, at five and eight years of age

New Forests, 12(2), 125.

By: W. Dvorak, J. Donahue & J. Vasquez

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Three-year survival and growth of provenances of Pinus greggii in the tropics and subtropics

FOREST ECOLOGY AND MANAGEMENT, 83(1-2), 123–131.

By: W. Dvorak n, J. Kietzka* & J. Donahue n

author keywords: adaptability; hybrids; drought tolerance; cold tolerance
TL;DR: Trees of P. greggii from sources in northern Mexico were less than half as tall as trees from provenances in central Mexico when established in warm climates of Brazil and Colombia, and trees from northern sources had shorter, stiffer, needles of darker green color than those from southern provenances. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1995 journal article

Early performance of CAMCORE introductions of Pinus patula in Brazil, Colombia and South Africa

Southern African Forestry Journal, (174), 23.

By: W. Dvorak n, J. Donahue n & J. Vasquez n

UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

1994 journal article

3-YEAR GROWTH AND STABILITY OF HONDURAN PROVENANCES AND FAMILIES OF PINUS-TECUNUMANII

FOREST ECOLOGY AND MANAGEMENT, 63(1), 1–11.

By: W. Dvorak n & K. Ross n

UN Sustainable Development Goal Categories
1. No Poverty (OpenAlex)
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1993 journal article

Genetic and site effects on stem breakage in Pinus tecunumanii

New Forests, 7(3), 237.

By: W. Dvorak n, C. Lambeth* & B. Li*

TL;DR: Results indicate that stem breakage was more common on trees with branches of large diameter and was not strongly related to growth rate. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

1991 journal article

Annotated bibliography on the wood properties of Pinus tecunumanii

CAMCORE Bulletin on Tropical Forestry, (9), 16.

By: W. Dvorak & R. Kellison

Source: NC State University Libraries
Added: August 6, 2018

1990 journal article

CAMCORE - INDUSTRY AND GOVERNMENTS EFFORTS TO CONSERVE THREATENED FOREST SPECIES IN GUATEMALA, HONDURAS AND MEXICO

FOREST ECOLOGY AND MANAGEMENT, 35(1-2), 151–157.

By: W. Dvorak n

TL;DR: Early results from CAMCORE genetic tests indicate that height gains of approximately 20% are possible in the tropics by simply using alternative species and more-productive seed sources. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1990 journal article

The taxonomic status of closely related closed cone pines in Mexico and Central America

New Forests, 4(4), 291.

By: W. Dvorak n & R. Raymond*

TL;DR: The geographic range of Pinus tecunumanii in Mexico appears to be confined to the state of Chiapas, and Canonical discriminant analysis was used to determine the taxonomic affinity among newly formed clusters. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

1988 journal article

Pinus maximinoi seed collections in Mexico and Central America

CAMCORE Bulletin on Tropical Forestry, (4), 47.

By: W. Dvorak & J. Donahue

Source: NC State University Libraries
Added: August 6, 2018

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