Hierarchical structure of stream ecosystems: consequences for bioassessment
نویسندگان
چکیده
منابع مشابه
Effects of urbanization and urban stream restoration on the physical and biological structure of stream ecosystems.
Streams, as low-lying points in the landscape, are strongly influenced by the stormwaters, pollutants, and warming that characterize catchment urbanization. River restoration projects are an increasingly popular method for mitigating urban insults. Despite the growing frequency and high expense of urban stream restoration projects, very few projects have been evaluated to determine whether they...
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We developed independent predictive disturbance models for a full regional data set and four individual ecoregions (Full Region vs. Individual Ecoregion models) to evaluate effects of spatial scale on the assessment of human landscape modification, on predicted response of stream biota, and the effect of other possible confounding factors, such as watershed size and elevation, on model performa...
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Studies on the effects of urbanization on stream ecosystems have evolved from documenting impacts to attempting to understand the driving factors responsible for stream conditions. In 1999, the U.S. Geological Survey’s National Water-Quality Assessment Program initiated a series of pilot studies to assess the effects of urbanization on physical habitat, biotic assemblages (algal, fish, inverteb...
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ژورنال
عنوان ژورنال: Hydrobiologia
سال: 2007
ISSN: 0018-8158,1573-5117
DOI: 10.1007/s10750-006-0481-9