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Estudio biogeográfico de la comunidad arbustiva del farellón costero de Punta Patache, Iquique, Chile

2004; Pontifical Catholic University of Chile; Issue: 31 Linguagem: Inglês

0718-3402

Isolina Egaña Contreras, Pilar Cereceda Troncoso, Raquel Pinto Bahamonde, Horacio Larraín Barros, Pablo Osses McIntyre, Martín Farías Salvador,

Mediterranean and Iberian flora and fauna

In the fog oases of Punta Patache the vegetation distribution is mainly due to topographical features and micro-relief (altitude, orientation of slopes and substrate) which determining the fog water availability which constitutes the main source of water at place. The objective of this biogeographical study in this oasis was to determine the location and distribution of a particular class of vegetation (shrubs), and recognize their species and phytosociology in relationship to environmental indicators. A survey was done in two sectors of the coastal cliff showing different exposure to the predominant winds; in the 24 sampling sites selected, seven shrub species were found. The plants were measured and the associated herbs were analyzed. Parameters such as frequency, density and coverage were also studied. Palabras claves: Biogeografia, niebla, oasis de niebla e indicadores ambientales.