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Titolo:
Classification of the terrestrial habitats on Marion Island based on vegetation and soil chemistry
Autore:
Smith, VR; Steenkamp, M;
Indirizzi:
Univ Stellenbosch, Dept Bot, ZA-7602 Matieland, South Africa Univ Stellenbosch Matieland South Africa ZA-7602 Matieland, South Africa
Titolo Testata:
JOURNAL OF VEGETATION SCIENCE
fascicolo: 2, volume: 12, anno: 2001,
pagine: 181 - 198
SICI:
1100-9233(200104)12:2<181:COTTHO>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUB-ANTARCTIC ISLAND; PLANT-COMMUNITIES; NUTRIENT DYNAMICS; STANDING CROP;
Keywords:
Canonical Correspondence Analysis; cluster analysis; ordination; peri-Antarctic island; plant guild; soil chemical composition; southern ocean island; sub-Antarctic;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Smith, VR Univ Stellenbosch, Dept Bot, Private Bag 1, ZA-7602 Matieland, South Africa Univ Stellenbosch Private Bag 1 Matieland South Africa ZA-7602
Citazione:
V.R. Smith e M. Steenkamp, "Classification of the terrestrial habitats on Marion Island based on vegetation and soil chemistry", J VEG SCI, 12(2), 2001, pp. 181-198

Abstract

Soil chemistry and vegetation data for 176 sites on sub-Antarctic Marion Island (47 degrees S, 38 degrees E) were subjected to Canonical Correspondence Analysis. 21 habitats in six habitat complexes were recognized from a clustering analysis of the site scores on the canonical axes. Another two habitats and one habitat complex were added to this. The resultant habitat classification closely reflects the between-habitat variation in the relative magnitudes of the main forcing variables that determine ecological succession on the island (moisture, exposure, parent soil material, salt-spray and manuring and trampling by seals and seabirds). It can be used by persons with a minimum of botanical or soil expertise. The habitat complexes (number of habitats in complex) are: Coastal Salt-spray Complex (2); Fellfield (2);Slope (6); Biotic Grassland (3); Biotic Herbfield (3); Mire (6); Polar Desert (1). A key is provided whereby the habitat to which a particular site belongs can be determined using botanical criteria, although infrequently soil moisture and pH information is also needed. Summaries of the soil chemistry and vegetation characteristics of the various habitats are also provided.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/01/20 alle ore 21:02:43