Results 31 to 40 of about 22,317 (250)
Port sites represent one of the most impacted coastal areas; this impact is due to intensive anthropogenic pressures. In addition to the port complex itself, associated activities, such as indiscriminate disposal of pollutants, including trace metals ...
Jéssica de F. Delgado +7 more
doaj +1 more source
Longitudinal patterns in an Arkansas River Valley stream: an Application of the River Continuum Concept [PDF]
The River Continuum Concept (RCC) provides the framework for studying how lotic ecosystems vary from headwater streams to large rivers. The RCC was developed in streams in eastern deciduous forests of North America, but watershed characteristics and land
Adams, S. R. +9 more
core +3 more sources
Seasonal feeding selectivity of brown trout Salmo trutta in five groundwater-dominated streams
Availability and selection of macroinvertebrate prey is important to explain temporal and spatial variation in growth among stream salmonids. However, few studies contain information to identify such relationships.
Jennifer Lynn Cochran-Biederman +1 more
doaj +1 more source
Community structure of benthic macroinvertebrate fauna of river Ichamati, India
Benthic macroinvertebrate communities are frequently applied as indicators of aquatic ecosystem health as many species are responsive to pollution and abrupt changes in their surroundings. The qualities of benthic invertebrate communities greatly depend
Arnab Basu +3 more
doaj +1 more source
Action Plan Items Related to EII Site Scores - Fiscal Year 2006 [PDF]
The Environmental Integrity Index (EII) was used to identify creek reaches with at least a 13% decrease in environmental health in using data collected in 2006 compared to initial conditions sampled in 1996 (phase I watersheds). City of Austin teams with
Herrington, Chris
core +1 more source
CO2-driven experimental acidification effects on aquatic macroinvertebrates in a tropical stream
Experimental acidification of a tropical stream was conducted to measure the effects of declining pH on aquatic macroinvertebrates. The mechanisms by which anthropogenic acidification occur in a freshwater stream system are relatively well understood ...
Crystal C. Klem +1 more
doaj +1 more source
Shifts in leaf litter breakdown along a forestpastureurban gradient in Andean streams [PDF]
Tropical montane ecosystems of the Andes are critically threatened by a rapid land-use change which can potentially affect stream variables, aquatic communities, and ecosystem processes such as leaf litter breakdown.
Breuer, Lutz +5 more
core +1 more source
Estimating sample representativeness in a survey of stream caddisfly fauna [PDF]
Obtaining an adequate and representative sample is a continuing challenge of community ecology. The present study focuses on what sample area represents adequately the structural composition of the caddisfly fauna of a riffle, at a given sampling ...
Erős, Tibor, Schmera, Dénes
core +1 more source
Anthropogenic stressors often co‐occur in ecosystems, but their combined impacts are rarely assessed using field experiments. Press disturbances particularly can reshape community dynamics, altering their capacity to withstand or recover from acute pulse disturbances by modifying response diversity.
Bridget E. White +6 more
wiley +1 more source
Effects of macrobenthos on sediment-water oxygen and ammonium fluxes. Final Report. [PDF]
Sediments are an important location in determining the fate of nutrients entering the estuary. Role of sediments needs to be incorporated into water quality models.
Barnes, J.M. +3 more
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