Most biological indices of pollution treat Chironomidae (Diptera) as a bad quality indicator,
but under certain natural circumstances (eg, frequent disturbs, dominance of fine sediments) …

The Ascotán salt pan is an extreme freshwater system in the Southern Altiplano of Chile (17°-
22° S). Its origin has been traced to the presence of the paleolake Minchin approximately …

Introducción: Los arroyos asociados a bofedales se hallan en ambientes donde las
condiciones son extremas con temperaturas muy variables, baja presión atmosférica e …

High Andean wetlands are fragile systems, vulnerable to human activity and climate change.
In the Arequipa region (Peru), there are high Andean lotic and lentic systems currently …

Background The study of altitudinal gradients provides insights about species diversity,
distribution patterns and related drivers. The Magellanic sub-Antarctic ecoregion has a steep …

Hyalella Smith, 1874 includes approximately 92 species present only in the Neotropical and
Nearctic regions. Hyalella is a dominant taxon in Central Andean Highland wetlands of …

Central Andean Highlands represent a singular environment characterized by various
extreme conditions. Among them, peatbogs are exceptional marshy habitats scattered …

vol. 28 número2 Hidrogeología de la Cuenca del río Marapa, provincia de Tucumán,
Argentina Análisis de balance de masas en la roca de caja con alteración hidrotermal …

Abstract The Argentine Puna is an example of rewilding of the herbivore community, with
wild camelids recovering (mainly vicuñas, Vicugna vicugna and guanacos Lama guanicoe) …

The relationship between environment and organisms has been a central focus of
community ecology. Different approaches have been made for analyzing different aspects of …