Botanical Studies on Mont St. Hilaire, Rouvillecounty, Quebec: General Description of the Area and a Floristic Survey

Maycock, Paul F.

doi:10.1139/b61-115

Cited by 60 publications

(36 citation statements)

References 2 publications

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“…Plants of both species reproduce via cleistogamous and chasmogamous flowers, with the latter flower type typically being produced only on larger individuals. The I. pal/ida populations studied occurred on relatively dry ground in two separate valleys in a beech-maple forest at Mont St. Hilaire, Quebec, Canada (Maycock, 1961). The I. capensis populations occupied sites directly adjacent to streams or wet depressions at Mont St. Hilaire.…”

Section: Methodsmentioning

confidence: 99%

Spatial autocorrelation of genotypes in populations of Impatiens pallida and Impatiens capensis

Schoen

Latta

1989

Heredity

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The genetic control and small scale spatial distributions of three conspicuous genetic polymorphisms-presence or absence of corolla spotting, yellow or white corolla colour, and presence or absence of stem waxiness-were studied in populations of the plant species Impati ens pallida and I. capensis occurring in Québec, Canada. The corolla spotting and colour morphs in I. pallida each appear to be determined by different pairs of unlinked loci. Dominant alleles at each locus pair are required for the expression of corolla spotting or yellow corolla colouration. Stem waxiness in I. capensis is also shown to be under genetic control. Significant clustering of identical flower and stem phenotypes at small interplant distances was observed in most population samples, suggesting substructuring of genotypes in space. The sizes of patches where morph frequencies occurred in excess of random expectations were found to be consistent among populations and polymorphisms within the species, lending support to the interpretation that substructuring of genetic variation in these populations is due to restricted gene dispersal. The population genetical consequences of limited gene flow in these species is discussed.

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Section: Methodsmentioning

confidence: 99%

Spatial autocorrelation of genotypes in populations of Impatiens pallida and Impatiens capensis

Schoen

Latta

1989

Heredity

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“…We sampled within an extensive population of I. pallida inhabiting a beech-maple forest on Mont St. Hilaire, Quebec, Canada (Maycock, 1961). In late April 1985, 24 point locations were randomly selected within a 30 x 40 meter area in this population.…”

Section: Methodsmentioning

confidence: 99%

PATTERN OF PHENOTYPIC VIABILITY AND FECUNDITY SELECTION IN A NATURAL POPULATION OFIMPATIENS PALLIDA

Stewart

Schoen

1987

Evolution

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Abstract, -Estimates of viability and fecundity selection of 13 phenotypic characters for 1,536 individuals of Impatiens pallida growing in 24 locations within a single natural population were compared. Directional viability selection of cotyledon area, day of initial leaf production, number ofleaves, and stem length was detected throughout this population. Directional fecundity selection ofcotyledon area, day ofinitial flower production, number ofleaves present on day ofinitial flower production, stem length on day of initial flower production, number of leaves, and stem length was also detected. Phenotypic selection of these characters was strong in some cases, and the strength of selection was significantly heterogeneous among locations. For several ofthe characters, directional phenotypic selection within the population was significantly positive in some locations and significantly negative in others separated by only a few meters. Fecundity selection was stronger than viability selection for some characters, implying that fecundity selection was at least as important as viability selection within this population. Soil moisture levels and light intensities played a larger role than soil nutrient levels in determining the patterns of both viability and fecundity selection, and differences in directional viability selection were more strongly related to environmental variation than were differences in fecundity selection. The pattern of phenotypic selection could not be reliably inferred from the patterns of mortality and reproduction alone.

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“…and conifers Pinus strobus L. and Tsuga canadensis Carriére (Maycock 1961). Various tree communities occur in relation to local relief and aspect (Arii et al 2005).…”

Section: Study Sitementioning

confidence: 99%

“…However, the original forest in MSH has remained intact because MSH was not appropriate as agricultural land. MSH is dominated by many deciduous broad-leaved tree species (Maycock 1961). Many trees exceed 150 years in age, and a few are over 400 years old (Cook 1971).…”

Section: Introductionmentioning

confidence: 99%

Effects of climatic conditions on tree-ring widths of three deciduous broad-leaved tree species at their northern distribution limit in Mont St. Hilaire, eastern Canada

Takahashi

2016

Journal of Forest Research

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This study examined the effects of climatic conditions on tree-ring widths of red oak (Quercus rubra), sugar maple (Acer saccharum) and American beech (Fagus grandifolia) at their northern distribution limit in Mont St. Hilaire, eastern Canada. A residual chronology of tree-ring width index was developed for each species. The tree-ring width of Q. rubra showed negative and positive correlations with May temperature and June precipitation in the current year, respectively. A. saccharum also showed similar patterns with Q. rubra, i.e., negative and positive correlations with June temperature and precipitation in the current year, respectively. F. grandifolia showed neither positive nor negative correlations with temperature and precipitation. The expressed population signals of tree-ring width chronologies of the three species indicated that climatic factors more greatly influenced the variations in treering widths in the order Q. rubra [ A. saccharum [ F. grandifolia. Therefore, the radial growth of Q. rubra was most restricted by drought stress in early summer among the three species. Global warming is suggested to affect the radial growth of the three species differently by increasing drought stress at Mont St. Hilaire in eastern Canada.

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Botanical Studies on Mont St. Hilaire, Rouvillecounty, Quebec: General Description of the Area and a Floristic Survey

Cited by 60 publications

References 2 publications

Spatial autocorrelation of genotypes in populations of Impatiens pallida and Impatiens capensis

Spatial autocorrelation of genotypes in populations of Impatiens pallida and Impatiens capensis

PATTERN OF PHENOTYPIC VIABILITY AND FECUNDITY SELECTION IN A NATURAL POPULATION OFIMPATIENS PALLIDA

Effects of climatic conditions on tree-ring widths of three deciduous broad-leaved tree species at their northern distribution limit in Mont St. Hilaire, eastern Canada

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