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| Huber,Otto. |
| La Provincia biogeográfica Pantepui, definida como el conjunto de ecosistemas orográficos meso - y submicrotermicos desarrollados en las montanas ("tepuyes") de la Región Guayana por encima de los 1.20011.500 m s.n.m., presenta una cobertura vegetal caracterizada por una flora altamente especializada, compuesta de unos 2.000 - 2.500 taxones, asf como por una diverdidad de tipos de vegetación muy evolucionados. La Región Guayana cuenta con dos familias endemicas, las Saccifoliaceae y las Tepuianthaceae. Las familias más importantes, tanto desde el punto de vista sistemitico como ecológico en la flora pan-tepuyana son las Asteraceae, Rubiaceae, Ochnaceae, Theaceae, Rapateaceae, Eriocaulaceae, Xyridaceae, Bromeliaceae y Cyperaceae. La vegetación se compone... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Guayana; Tepui; Pantepui; Panlepui flora; Panlepui vegetation. |
| Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300005 |
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| Gröger,Andreas; Huber,Otto. |
| The Guayana Shield, located in north-eastern South America, consists of a highly complex and composite mosaic of landscape elements. Amongst these, inselbergs are very conspicuous, because of their peculiar shape and their unusual associated vegetation. Geologically, these rock outcrops are part of the underlying ancient igneous-metamorphic basement and occur mainly in the lowlands of the periphery of the shield. As azonal habitats, inselbergs harbour a highly specialized flora. The characteristic vegetation is composed of lithophytic and savanna-like plant communities, as well as low dry forests. As a whole, the vegetation of an inselberg may be interpreted as a mosaic of marginal habitats. Therefore a large number of taxa find suitable niches in a quite... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endemism; Flora; Guayana Shield; Inselberg; Phytogeography; Venezuela. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000400006 |
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