Vegetation variation among mesic successional forest stands in northern lower Michigan

1988 ◽  
Vol 66 (6) ◽  
pp. 1080-1090 ◽  
Author(s):  
Mark R. Roberts ◽  
Norman L. Christensen

Vegetation composition of the shrub–tree and herb layers was sampled in 70 successional aspen (Populus tremuloides and Populus grandidentata) stands of different ages (1–90 years) on a variety of sites in northern lower Michigan. Physical and chemical characteristics of soil profiles were also measured at each site. Three stand groupings were identified based on site conditions and detrended correspondence analysis (DCA) ordination of the vegetation. Sandy dry-mesic soils support forests of Acer rubrum, Quercus rubra, Pinus resinosa, and Pinus strobus. On lowland sandy soils with a fluctuating water table, Pinus strobus, Abies balsamea, Viburnum lentago, and Viburnum cassinoides are important. Mesic soils with stratified calcareous layers or clay till substrates support Acer saccharum, Fagus grandifolia, Tilia americana, Fraxinus americana, Ostrya virginiana, and Acer pensylvanicum. Canonical correlation analysis (CCA) was used to compare DCA scores with soil variables; first-axis DCA scores were correlated with a suite of soil variables and stand age was correlated with second or third DCA axis scores. Separate DCA ordinations of the dry-mesic and mesic groups revealed successional relations on these sites. On dry-mesic sites, Pinus resinosa and Pinus strobus increase in importance with stand age, while Prunus serotina, Prunus virginiana, Prunus pensylvanica, and the aspens decrease. On mesic sites, early successional species include the aspens, Corylus cornuta, Prunus serotina, and Prunus pensylvanica. Fagus grandifolia, Acer pensylvanicum, Quercus rubra, Viburnum acerifolium, Betula papyrifera, Acer rubrum, and Tilia americana are more abundant in mature mesic-site stands. Ordinations of the herb data were remarkably similar to those for trees and shrubs except on dry-mesic sites. Much of the residual variability in vegetation not accounted for by site conditions and stand age is probably related to historical factors such as the nature of disturbance and variations in seed rain.

1983 ◽  
Vol 7 (2) ◽  
pp. 93-97 ◽  
Author(s):  
Neil I. Lamson

Abstract In West Virginia crop trees were selected from 7- or 12-year-old yellow-poplar (Liriodendron tulipifera L.), basswood (Tilia americana L.), red maple (Acer rubrum L.), black cherry (Prunus serotina Ehrh.), and northern red oak (Quercus rubra L.) stump sprouts. Crop trees were dominant or codominant, well-formed sprouts that originated not more than 6 inches above groundline and did not fork in the lower 17 feet. Four treatments were evaluated: (1) control; (2) thinning; (3) pruning; and (4) thinning plus pruning. Five years after treatment the diameter (d.b.h.) growth of thinned sprouts was 1.5 times greater than that of control sprouts. Pruning did not cause a significant decrease in five-year d.b.h. growth. Height growth was not affected by the treatments. Most of the epicormic branches produced by pruning were dead five years after treatment. Natural pruning was reduced by thinning; the average clear bole length of thinned sprouts was about 2 feet shorter than that of the control sprouts. Survival was nearly 100 percent.


1969 ◽  
Vol 47 (7) ◽  
pp. 1033-1038 ◽  
Author(s):  
W. R. Chaney ◽  
T. T. Kozlowski

Seasonal and diurnal expansion and contraction of growing fruits of Acer rubrum L., Prunus serotina Ehrb., P. pensylvanica L., P. virginiana L., Quercus rubra L., and Corylus cornuta Marsh, var. cornuta were measured with modified Fritts dendrographs during the summers of 1966 and 1967. Throughout much of the summer the fruits exhibited recurrent shrinkage during the day and expansion at night. Fruit diameter fluctuations in 1967 were related to changes in vapor pressure deficit. Expansion of fruits generally occurred when vapor pressure deficit was decreasing or low and contraction resulted when vapor pressure deficit was increasing or high.


1960 ◽  
Vol 38 (3) ◽  
pp. 307-312 ◽  
Author(s):  
Eville Gorham ◽  
Alan G. Gordon

A study along a line NNE. from the metal smelter at Falconbridge, Ontario, reveals that strong sulphate accumulation in the surface soil occurs only within about one mile of the chimneys emitting sulphur dioxide pollution while effects upon the soil drainage waters are marked to a distance of nearly two miles, and still clearly evident 10 or more miles away. The number of species present in the flora declines sharply within about four miles of the smelter, but certain species (e.g. Pinus strobus, Vaccinium myrtilloides) disappear at much greater distances. Among the most tolerant species are Acer rubrum, Quercus rubra, Sambucus pubens, and Polygonum cilinode.


1969 ◽  
Vol 47 (9) ◽  
pp. 1407-1417 ◽  
Author(s):  
W. R. Chaney ◽  
T. T. Kozlowski

Seasonal variations in actual moisture content (MC), moisture content as percent of dry weight (% MC), and dry weight were determined for fruits of Acer rubrum L., Quercus rubra L., and Prunus serotina Ehrb. at weekly or 2-weekly intervals. On selected dates diurnal variations in MC, % MC, and dry weight of fruits or cones and leaves of Quercus rubra, Prunus serotina, P. virginiana L., and Pinus banksiana Lamb. were determined at 4-hour intervals during the day and night. Percentage moisture content of reproductive tissues and leaves was variously influenced by water uptake or loss, change in dry weight, or both of these. The water balance of different tissues of the same organ varied differently, both seasonally and diurnally, in the same species as well as between species. Percentage moisture content alone is not an accurate indicator of internal water balance of plants and should be interpreted in relation to both water weight and dry weight changes of tissues.


1991 ◽  
Vol 69 (8) ◽  
pp. 1839-1852 ◽  
Author(s):  
L. Lamontagne ◽  
C. Camiré ◽  
C. Ansseau

The vegetation and the soil characteristics of the sandy terraces of the Lanoraie Delta, Quebec, were sampled at 84 forest sites using the methods of Whittaker and Canada Soil Information System. The ordination results show that the soil moisture regime (xeric–hydric) and the pH (3.5–5.0) are the main factors responsible for the spatial distribution of the vegetation. When these results (ordination analysis) and those of the cluster analysis are superimposed, the relationship between the five vegetation groups studied and particular ecological conditions can be seen. Thus, two groups of vegetation dominated by conifers are found in the middle of the terraces. One of these is dominated by Tsuga canadensis and the other by Abies balsamea and Picea rubens. These two groups are found on podzolic, gleyed soils with a mounded microrelief, which are strongly acidic (pH < 3.5) and have a hydric–mesic moisture regime. The remaining three vegetation groups are dominated by deciduous species. Among these, two groups arise from human activities such as logging or farming. One of these is dominated by Fagus grandifolia, Acer saccharum, Acer rubrum, and Quercus rubra and is composed of mature trees. The other is dominated by Pinus strobus, Polulus grandidentata, Populus tremuloides, or Betula papyrifera and is composed of young trees. These two types occupy the edge of the terraces where the topography is flat and the soil podzolic with a moderately to slightly acidic pH (4.0–5.0) and a xeric–mesic moisture regime. Finally the third group, dominated by Acer rubrum, is found on medium acidic (pH = 4.0), gleyed soils with a hydric–mesic moisture regime. This study shows that Acer rubrum is the best suited species for sandy, acidic, and nutrient-poor sites of the Lanoraie Delta. Key words: Lanoraie Delta, multivariate analysis, vegetation classification, Acer rubrum.


2014 ◽  
Vol 35 (2) ◽  
pp. 303-309 ◽  
Author(s):  
Piotr Łakomy ◽  
Tadeusz Kowalski ◽  
Antoni Werner

The study material consists of 165 <i>H. annosum</i> isolates from 25 different localities. Host species was <i>Pinus sylvestris, Picea abies, Betula pendula, Abies alba, Lnrix decidua, Pinus strobus, Prunus serotina, Quercus rubra</i>. Most of the <i>H. annosum</i> isolates belonged to the P group. This group was most common on pine and birch. The S group infected Norway spruce and European fir. The F group was recorded only in the south of Poland. Only three localities, where this intersterility group was present, were found in Poland.


1985 ◽  
Vol 63 (9) ◽  
pp. 1641-1651 ◽  
Author(s):  
Mark R. Roberts ◽  
Curtis J. Richardson

In 1938, four permanent 0.04-ha (0.1-acre) plots were established in pioneer aspen (Populus grandidentata Michx. and P. tremuloides Michx.) forests on dry-mesic to wet-mesic soils in Michigan. These sites are representative of the soils and vegetation types found in the region. Patterns of survival, growth, and recruitment of individual woody stems are determined from remeasurements in 1945, 1951, 1955, 1968, 1973, and 1979. Five patterns of change in species populations are identified, reflecting differences in reproductive characteristics and physiological requirements of the species: (1) early dominance, (2) delayed dominance, (3) persistence, (4) progressive recruitment, and (5) late recruitment. Patterns 1, 3, and 4 predominated on dry-mesic soils, reflecting slow replacement of aspen by Pinus resinosa Ait. and P. strobus L. from seedling origin, whereas all five patterns occurred on the mesic soil where Acer rubrum L., A. saccharum Marsh., and Fagus grandifolia Ehrh. increased in importance through both vegetative sprouting and seedling establishment. Recruitment on the dry-mesic soils did not correspond to the stages of development of the aspen overstory as determined from −3/2 thinning curves. In contrast, recruitment and growth in the understory appeared to be dependent upon the occurrence of canopy openings on the mesic soil. Species populations responded to insect defoliation on the wet-mesic plot, illustrating the importance of understanding population dynamics in studies of succession.


2008 ◽  
Vol 84 (1) ◽  
pp. 83-94 ◽  
Author(s):  
William C Parker ◽  
Ken A Elliott ◽  
Daniel C Dey ◽  
Eric Boysen

Thinning and underplanting of conifer plantations to promote natural succession in southern Ontario's forests for restoration purposes was examined in a young red pine (Pinus resinosa Ait.) plantation. Eleven years after application of five thinning treatments, seedling diameter, height, and stem volume of planted white ash (Fraxinus americana L), red oak, (Quercus rubra L.), and white pine (Pinus strobus L.) were positively correlated with thinning intensity and size of canopy openings. Percent survival did not differ among thinning treatments. Based on growth and survival responses, field performance of white ash and white pine was superior to red oak. Recommendations for restoring conifer plantations to native forest types are provided. Key words: acorn predation, direct seeding, Fraxinus americana, Pinus resinosa, Pinus strobus, plantations, Quercus rubra, red oak, red pine, underplanting, thinning, white ash, white pine


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