Understorey succession after burial by tephra from Mount St. Helens
نویسندگان
چکیده
منابع مشابه
Primary succession on Mount St. Helens, with reference to Surtsey
STUDY AREA The 18 May 1980 eruptions of Mount St. Helens formed a complex pattern of new and denuded land (Dale et al. 2005). This extraordinary landscape beckoned irresistibly to ecologists to study reassembly (Fig. 1). This report draws on studies conducted by myself and colleagues since 1980. Methods are in the references. Vegetation structure was monitored in transects of permanent plots: 1...
متن کاملEarly primary succession on the volcano Mount St. Helens
focus on primary succession in habitats formed on May 18, 1980, to explore mechanisms that control establishment of plants on new landforms. The rate of early primary succession is generally believed to be slow (cf. Crocker & Major 1955; Shure & Ragsdale 1977; Houle & Phillips 1989), though rates can differ significantly. As conditions are ameliorated by weathering and nutrient accumulation, th...
متن کاملSpatial analysis of Mount St. Helens tephra leachate compositions: implications for future sampling strategies
Tephra particles in physically and chemically evolving volcanic plumes and clouds carry soluble sulphate and halide salts to the Earth's surface, ultimately depositing volcanogenic compounds into terrestrial or aquatic environments. Upon leaching of tephra in water, these salts dissolve rapidly. Previous studies have investigated the spatial and temporal variability of tephra leachate compositi...
متن کاملPetrogenesis of Mount St. Helens Dacitic Magmas
The most frequent and voluminous eruptive Kurasawa, 1983], (4) partial melting of the lower crust products at Mount St. Helens are dacitic in composition, [e.g., Grant et al., 1984; Reid and Cole, 1983], and (5) although a wide variety of magma types (basalt to formation of compositional gradients in response to rhyodacite) is represented. To address the petrogenesis of convective and diffusive...
متن کاملThe origin of Mount St. Helens andesites
Smith, D. R. and Leeman, W. P., 1993. The origin of Mount St. Helens andesites. J. Volcanol. Geotherm. Res., 55: 271-303. Mount St. Helens volcano has intermittently produced mainly dacitic products but occasionally erupted a more diverse suite of lavas including basalts and andesites. Petrogenetic relations between these magmas provide insight into the dynamics of the subjacent magma system. M...
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ژورنال
عنوان ژورنال: Journal of Ecology
سال: 2018
ISSN: 0022-0477,1365-2745
DOI: 10.1111/1365-2745.13052