Buscar
Mostrando ítems 51-60 de 2699
Stream fish metacommunity organisation across a Neotropical ecoregion: The role of environment, anthropogenic impact and dispersal-based processes
(2020-05-01)
Understanding how assemblages are structured in space and the factors promoting their distributions is one of the main goals in Ecology, however, studies regarding the distribution of organisms at larger scales remain ...
A method for assessing the ecological quality of riparian forests in subtropical Andean streams: QBRy index
(Elsevier Science, 2012-02)
A modified QBR index adapted to examine the riparian quality of streams included within Yungas biome is presented. The index, named QBRy, comprehend modifications of the original index in three of the four sections in order ...
Assessment of the Abundance and Diversity of Calliphoridae and Sarcophagidae (Diptera) in Sites With Different Degrees of Human Impact in the Iberá Wetlands (Argentina)
(Entomological Society of America, 2016-07)
The aim of the present study was to explore the diversity and describe the spatial distribution of Calliphoridae and Sarcophagidae along an urbanization gradient in the Iberá Wetlands. The flies were collected at 18 sampling ...
Growth, abundance, morphometric and metabolic parameters of three populations of Diplodon chilensis subject to different levels of natural and anthropogenic organic matter input in a glaciar lake of North Patagonia
(Elsevier Gmbh, 2013-06)
Three populations of Diplodon chilensis (Hiridae, Bivalvia) from North Patagonia (Lacar lake, Argentina) have been studied to determine how organic matter (OM) influence their growth, density, morphometric and metabolic ...
Effects of anthropogenic impacts on benthic macroinvertebrates assemblages in subtropical mountain streams
(2013-12)
The nature of the riparian and surrounding landscape has been modified by anthropogenic activities, which may subsequently alter the composition and functional structure of macroinvertebrate assemblages. The effect of these ...
Isotopic niches of tropical birds reduced by anthropogenic impacts: a 100-year perspective
(2021-01-01)
The intensification of land-use changes in tropical forests during the 20th century, mainly caused by deforestation for agricultural uses, had an overwhelming influence on bird assemblages. However, how these historical ...