منابع مشابه
Active dispersal by wild Triatoma infestans in the Bolivian Andes.
Triatoma infestans is the main vector of Chagas disease and target of control programmes in the Southern Cone countries. So far Bolivia is the only country where true T. infestans wild foci are documented. The dispersal ability for wild T. infestans was studied at microgeographical scale in Bolivian Andes, to assess the possibility for wild populations to actively recolonize insecticide-treated...
متن کاملLate Cenozoic uplift of the Eastern Cordillera, Bolivian Andes
This paper analyses Late Cenozoic uplift in the Bolivian Andes, using the morphology of well preserved regional paleosurfaces in the Eastern Cordillera that define three axially draining braided river catchments that formed between ∼12 and ∼9 Ma. Rock uplift since the formation of the paleodrainage systems, which has been quantified using four different methods, is 1705±695 m, with a mean erosi...
متن کاملPulmonary endocrine cells of Aymara Indians from the Bolivian Andes.
INTRODUCTION There is evidence to suggest that life at high altitude causes changes in the population of pulmonary endocrine cells, possibly because of exposure to chronic hypoxia. A study was made of the populations of pulmonary endocrine cells in three Aymara Indians and three Mestizos of La Paz (3600 m), Bolivia, which were compared with those in four white lowlanders. METHODS Pulmonary en...
متن کاملLatitudinal Variation of Denudation in the Evolution of the Bolivian Andes
Latitudinal gradients in topography, relief, climate, and deformation have been used to suggest that climate-driven erosion has exerted a first order control on the development of the central Andes. We synthesize the spatial and temporal variations in denudation across the eastern Bolivian Andes (14-22°S) from new and existing estimates to test whether physical evidence exists to support the hy...
متن کاملPre-colombian mercury pollution associated with the smelting of argentiferous ores in the Bolivian Andes.
The development of the mercury (Hg) amalgamation process in the mid-sixteenth century triggered the onset of large-scale Hg mining in both the Old and New Worlds. However, ancient Hg emissions associated with amalgamation and earlier mining efforts remain poorly constrained. Using a geochemical time-series generated from lake sediments near Cerro Rico de Potosí, once the world's largest silver ...
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ژورنال
عنوان ژورنال: The Geographical Journal
سال: 1899
ISSN: 0016-7398
DOI: 10.2307/1774726