An analysis of the vegetation of Sphagnum-dominated kettle-hole bogs in relation to environmental gradients

Abstract

Eight Sphagnum -dominated kettle-hole bogs in northern Michigan were analyzed to elucidate vegetation patterns of both vascular plants and Sphagnum species in relation to measured bog gradients. Methods of both direct and indirect gradient analysis, including ordination and cluster analysis, were used. Community types as delineated in the ordination are discussed, including species distribution for Sphagnum and vascular plants. Segregation of community types followed gradients of pH, light, and calcium and magnesium ion concentrations. Two types of kettle-hole bogs were distinguished surrounding acid and alkaline bog lakes respectively, each with its own continuum of community types.

The Dynamics of <i>Sphagnum</i> in Forest and Peatland Communities in Southeastern Labrador, Canada

“…Vitt and Slack, 1975;Egler, 1977;McIntosh, 1980). It is preferable to have some understanding of past population dynamics of the species, its growth rate relative to other species, and its historical abundance, in order to explain the vegetative patterns in the present landscape.…”

<p><strong>Biogeochemical Ecology of six Species of <em>Sphagnum </em>in Costa Rica</strong></p>

“…Both the Na and K concentrations are in some cases ten times greater than values reported by Vitt andSlack (1975, 1984) and McQueen (1991). The Fe concentration for S. platyphyllum is approximately 100 times greater than the other species.…”

Water chemical relations and water table of North Hungarian mires

“…Gignac 1990, Gignac and Vitt 1990, Malmer 1986, Sjörs 1950, 1952, Vitt and Chee 1990, Vitt and Slack 1975, but there are some data from Great Britain (Boatman et al 1975, Gorham andPearsall 1956), from the Alps (e.g. Bargaz za and Gerdol 1999, Gerdol 1990, and also from the Carpathian Region (e.g.…”