Chapter 8 Vegetation
2003; Elsevier BV; Linguagem: Inglês
10.1016/s1571-0866(03)80011-8
ISSN2212-1161
Tópico(s)Botany, Ecology, and Taxonomy Studies
ResumoPublisher SummaryDistribution and composition of plant formations in the Southern Andes are subject to strong latitudinal and altitudinal climatic gradients. Controlling parameters are temperature, net precipitation, and wind and to a lesser degree topography and soils; a measure of control is exerted by the cold offshore Humboldt current. The chapter presents tables that list scientific binomials of selected Southern Andean seed plants and ferns/fern allies, including family affinities, common names, and latitudinal limits and the climatic parameters estimated for each formation. Of special note in the Southern Andean flora, replacing earlier plant names given as follows in parenthesis, are Huperzia fuegiana (Lycopodium fuegiahum), Lepidothamnus fonkii (Daco, dium fonckii), Laureliopsis philippiana (Laurelia philippiana), Prumnopitys andina (Podocarpus andina), and Gunnera tinctoria (Gunnera chilensis). In thorn shrub–succulent vegetation, arboreal Acacia caven in the lowland has gained considerable stature as a community member. Communities of Valdivian Evergreen forest in proximity to the ocean are dominated by Aextoxicon punctatum mixed with Eucryphia cordifolia and myrtaceous Myrceugenia planipes, M. ovata, and Luma apiculata. At the foot of the Andes about Laguna de San Rafael, corresponding vegetation surveys reveal the forest there resembles forest on the Peninsula de Taitao. Evergreen beech species, by contrast, grow under more oceanic climatic regimes.
Referência(s)