Buscar
Mostrando ítems 1-10 de 413
Metal leaching, acidity, and altitude confine benthic macroinvertebrate community composition in Andean streams
(Wiley, 2014)
Andean streams drain metal-rich bedrock and are subjected to an extreme altitude gradient, which may create highly selective conditions for life. The aim of the present study was to evaluate the combined effects of metals ...
Hydrological influences on aquatic communities at the mesohabitat scale in high Andean streams of southern Ecuador
(2019)
This study assessed the effects of hydrological events on aquatic communities at the mesohabitat scale (pool, run, and riffle) in the high Andean region. Four headwater sites located in the Zhurucay microcatchment (southern ...
Metal leaching, acidity, and altitude confine benthic macroinvertebrate community composition in Andean streams
(Wiley, 2014)
Andean streams drain metal-rich bedrock and are subjected to an extreme altitude gradient, which may create highly selective conditions for life. The aim of the present study was to evaluate the combined effects of metals ...
Deforestation and benthic indicators: How much vegetation cover is needed to sustain healthy Andean streams?
(2014-08-22)
Deforestation in the tropical Andes is affecting ecological conditions of streams, and determination of how much forest should be retained is a pressing task for conservation, restoration and management strategies. We ...
Secondary production of caddisflies reflects environmental heterogeneity among tropical Andean streams
(2017)
Macroinvertebrate life history and secondary production have rarely been measured in tropical highland streams even though these streams are highly heterogeneous and display unique ecological settings compared to both those ...
Riparian and microhabitat factors determine the structure of the EPT community in Andean headwater rivers of Ecuador
(2017)
This research was conducted in the high‐Andean basin of the Zhurucay River in southern Ecuador.
In 4 river reaches, 19 sampling campaigns were conducted per reach spread over a period
of 35 months. The biotic samples were ...
Ultraviolet-B-driven pigmentation and genetic diversity of benthic macroinvertebrates from high-altitude Andean streams
(Wiley, 2013)
Photoprotective pigments in benthic macroinvertebrates may reduce the damage caused by the blistering UV-B radiation in Andean high-altitude streams above 3500 m. The aim of this study was therefore to determine whether ...
Interannual and Seasonal Variability of Macroinvertebrates in Monsoonal Climate Streams
(Inst Tecnologia Parana, 2012-05)
The aim of this study was to assess the interannual and seasonal changes in the community composition, abundance and presence-absence of macroinvertebrates in the streams of the northwestern of Argentina. The importance ...
Metals and altitude drive genetic diversity of chironomids in Andean streams
(Wiley, 2014)
Andean streams cover steep altitude gradients and locally leach metal-rich bedrock, creating highly selective habitat conditions. Chironomids are among the few dominant insect taxa present under the harshest conditions in ...
Metals and altitude drive genetic diversity of chironomids in Andean streams
(Wiley, 2013)
Andean streams cover steep altitude gradients and locally leach metal-rich bedrock, creating highly selective habitat conditions. Chironomids are among the few dominant insect taxa present under the harshest conditions in ...