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(1996)
Genetic diversity — an indicator of sustainability
D. Neale (1985)
Genetic Implications of Shelterwood Regeneration of Douglas-fir in Southwest OregonForest Science, 31
(1989)
BIOSYS-1. A computer program for the analysis of allelic variation in population genetics and biochemical systematics. Release 1.7. Illinois Natural History Survey
J. Roberds, M. Conkle (1984)
Genetic Structure in Loblolly Pine Stands: Allozyme Variation in Parents and ProgenyForest Science, 30
(1987)
Within - stand clustering of eastern white pine genotypes
G. Buchert (1994)
Genetics of white pine and implications for management and conservationForestry Chronicle, 70
(1979)
Isozyme variation in populations of southern pine beetles
G. Namkoong (1992)
Biodiversity — Issues in genetics, forestry and ethicsForestry Chronicle, 68
(1996)
Effects of forestry practices on genetic diversity : implications for sustainable forest management and gene conservation
P. Leberg (1992)
EFFECTS OF POPULATION BOTTLENECKS ON GENETIC DIVERSITY AS MEASURED BY ALLOZYME ELECTROPHORESISEvolution, 46
F. Bergmann, F. Scholz (1987)
The impact of air pollution on the genetic structure of Norway spruceSilvae Genetica, 36
(1991)
Clone identity and contamination in a Scots pine seed orchard. Pages 22-32 in
E. Chagala (1991)
Genetic studies of five white pine species and their interspecific hybrids by isozymes
J. Mitton, B. Pierce (1980)
The distribution of individual heterozygosity in natural populations.Genetics, 95 4
(1989)
Old-growth forests of the northern lake states: a landscape ecosystem perspective
J. Ryu (1982)
GENETIC STRUCTURE OF PINUS STROBUS L BASED ON FOLIAR ISOZYMES FROM 27 PROVENANCES
Ranajit Chakraborty (1981)
The distribution of the number of heterozygous Loci in an individual in natural populations.Genetics, 98 2
D. Maissurow (1935)
Fire as a Necessary Factor in the Perpetuation of White PineJournal of Forestry, 33
G. Müller-Starck (1985)
Genetic differences between «tolerant» and «sensitive» beeches (Fagus sylvatica L.) in an environmentally stressed adult forest standSilvae Genetica, 34
J. Genys (1987)
Provenance variation among different populations of Pinusstrobus from Canada and the United StatesCanadian Journal of Forest Research, 17
S. Raddi, F. Stefanini, A. Camussi, R. Giannini (1994)
Forest decline index and genetic variability in Picea abies (Karst.), 1
M. Nei (1978)
Estimation of average heterozygosity and genetic distance from a small number of individuals.Genetics, 89 3
Y. El-Kassaby, K. Ritland (1986)
Low levels of pollen contamination in a Douglas-fir seed orchard as detected by allozyme markersSilvae Genetica, 35
R. Yazdani, O. Muona, D. Rudin, A. Szmidt (1985)
Genetic structure of a Pinus sylvestris L. seed-tree stand and naturally regenerated understoryForest Science, 31
J. Beaulieu, J. Simon (1994)
Genetic structure and variability in Pinus strobus in QuebecCanadian Journal of Forest Research, 24
Pollen contamination in a mature, Douglas-fir seed orchard. Pages 160-171 in Proceedings of IUFRO joint meeting working parties on breeding theory, progeny testing and seed orchards
W. Cheliak, G. Murray, J. Pitel (1988)
Genetic effects of phenotypic selection in white spruceForest Ecology and Management, 24
(1991)
Vegetation survey of Galloway Lake old pine area, Sault Ste. Marie district. Ontario Ministry of Natural Resources
H. Gregorius (1980)
The probability of losing an allele when diploid genotypes are sampled.Biometrics, 36 4
F. Ledig (1988)
Conservation of diversity in forest trees
(1992)
Understanding old-growth red and white pine dominated forests in Ontario. Forest landscape ecology series 2
R. Eckert, R. Joly, D. Neale (1981)
Genetics of isozyme variants and linkage relationships among allozyme loci in 35 eastern white pine clonesCanadian Journal of Forest Research, 11
G. Ridgway, S. Sherburne, R. Lewis (1970)
Polymorphism in the Esterases of Atlantic HerringTransactions of The American Fisheries Society, 99
A. Harju, O. Muona (1989)
Background pollination in Pinus sylvestris seed orchardsScandinavian Journal of Forest Research, 4
(1975)
Optimum sampling strategies in genetic conservation
Allozyme diversity of natural stands versus seed orchard loblolly pine. Page 21 in S. Magnussen
Sheppard for preparing, x-raying, and sorting seeds
(1985)
Unweltbelastung und Anpassungsfähigkeit von Baumpopula - tionen
(1983)
Foliar isozyme variation in twenty - seven provenances of Pinus strobus L . : genetic diversity an population structure
Genetic diversity measures at 54 isozyme loci coding for 16 enzymes in megagametophytes were compared between preharvest and postharvest gene pools of two adjacent virgin, old‐growth (∼250 years) stands of eastern white pine ( Pinus strobus L.) in the Galloway Lake Old Pine Area of central Ontario. The concurrence of genetic diversity changes between the stands suggests that real and repeatable genetic erosion occurred in these gene pools as a result of harvesting. The total and mean number of alleles detected in each stand were reduced by approximately 25% after tree density reductions of 75%. The percentage of polymorphic loci dropped by about 33% from preharvest levels. About 40% of the low frequency (0.25> p ≥ 0.01) alleles and 80% of the rare ( p < 0.01) alleles were lost from each stand because of harvesting. Hypothetical multilocus gametic diversity was reduced by about 40% in each stand after harvesting. Latent genetic potential of each stand was reduced by about 50%, suggesting that the ability of these gene pools to adapt to changing environmental conditions may have been compromised. Heterozygosity estimates in the postharvest stands did not reflect reductions in allelic richness due to harvesting. Observed heterozygosity increased by 12% in one stand after harvesting, even though other genetic diversity measures decreased. Gene frequency changes due to harvesting imply that gene pools of naturally regenerated progeny stands may be quite different from the original parental stands. Silvicultural practices should ensure that the gene pools of remaining pristine old‐growth stands have been reconstituted in the regenerating stands.
Conservation Biology – Wiley
Published: Jun 9, 1997
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