Score-based biotic indices are widely used to evaluate the water quality of streams and
rivers. Few adaptations of these indices have been done for South America because there is …

Se presenta un protocolo rápido de evaluación de la Calidad Ecológica de Ríos Andinos
(CERA), situados sobre los 2000 msnm, desde los Andes del Norte (Venezuela) hasta el …

We analysed an existing database of macroinvertebrates and fish in the context of a newly
established geographical information system (GIS) of physical features to determine the …

Publisher Summary This chapter describes the features of tropical high-altitude streams,
including physico-chemical conditions, primary producers and macrophytes, fishes, and …

Describing and understanding patterns in biological diversity along major geographical
gradients is an important topic in ecology. Samples collected from a large number of …

Communities of aquatic macroinvertebrates, fish density and biomass, and environmental
variables were investigated in three Patagonian mountain rivers affected by urbanization …

The objective of this study was to explore the altitudinal decrease in local richness of stream
macroinvertebrates. I compared the explicatory power of a mid-domain effect (MDE) null …

Altitudinal patterns in diversity of macroinvertebrate families at different spatial scales (stone,
stream and altitude) were studied by collecting stone samples from six streams at each of …

Abstract Paul Colinvaux and his Ecuadorian student Miriam Steinitz-Kannan were the first
modern scientists to study limnology in Ecuador in the 1960s and 1970s. Fifty years later …

Regional land-cover change affects biodiversity, hydrology, and biogeochemical cycles at
local, watershed, and landscape scales. Developing countries are experiencing rapid land …