The extensive development of surface and subsurface drainage systems to facilitate
agricultural production throughout North America has significantly altered the hydrology of …

The southern United States is characterized by a humid, subtropical climate and consists of
16 states (Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Tennessee, Kentucky …

H umans have long been fascinated by the dynamism of free-flowing waters. Yet we have
expended great effort to tame rivers for transportation, water supply, flood control …

A heuristic framework for understanding and predicting the distribution and categorical
abundance of species in stream communities is presented. The framework requires that …

Stream fish assmemblage data for 34 sites in Wisconsin and Minnesota were obtained from
archived sources and were used in conjunction with long—term hydrological data to test the …

The concept of process domains is proposed as an alternative to the River Continuum
Concept for the influence of geomorphic processes on aquatic ecosystems. Broadly defined …

Life history theories attempt to explain the evolution of organism traits as adaptations to
environmental variation. A model involving three primary life history strategies (endpoints on …

The rapidly evolving field of environmental toxicology involves the study of toxic compounds
and their effect on living organisms, as well as their fate within the natural environment …

The goal of biological monitoring is to evaluate the effect of human activities on biological
resources. In this study, we linked human activities across landscapes to specific changes in …

1. Relatively undisturbed streams in continental USA were classified according to variation
in ten ecologically relevant hydrological characteristics. Measures of flow variability and …