Results 51 to 60 of about 17,296 (265)

Geomorphic Effects and Habitat Impacts of Large Wood at Restoration Sites in New England

River Research and Applications, EarlyView.
ABSTRACT Large wood (used interchangeably with the term “instream wood”), which refers to trees, logs and other wood within a channel, is beneficial to river ecosystems and is being used more frequently as a component of river restoration projects. We identified metrics to evaluate the effectiveness of large wood to promote ecological and geomorphic ...
Audrey J. Turcotte, Noah P. Snyder, Mathias J. Collins   +2 more
wiley   +1 more source

Ecological Significance of Aquatic Macroinvertebrates in Headwater Streams

Journal of Tropical Forestry and Environment
Headwater streams are the starting points of river ecosystems, that consist of an array of unique microhabitats. Most of these stream segments are first-order streams and these aquatic ecosystems provide habitats for many macroinvertebrates including ...
Keerthi Sri Senarathna Atapaththu
doaj   +1 more source

CEH code list for recording the macroinvertebrates in fresh water in the British Isles [PDF]

, 2011
The purpose of this Coded List is to provide a standard set of names and identifying codes for freshwater macroinvertebrates in the British Isles.
Davies, Cynthia, Edwards, Francois
core  

Experimental Study on Fine Sediment Infiltration (FSI) Processes in Different Gravel Mixtures

River Research and Applications, EarlyView.
ABSTRACT Fine sediment infiltration (FSI) can lead to riverbed clogging, thereby degrading important habitats for aquatic biota in the hyporheic interstitial zone of gravel‐bed rivers (e.g., by reducing oxygen availability). This stress on rivers may increase from anthropogenic influences and can be counteracted by artificial gravel augmentation to ...
Michael Paster, Gábor Fleit, Helmut Habersack, Christoph Hauer   +3 more
wiley   +1 more source

A permeable hyporheic zone may contribute to buffer the effects of a drying event on prey availability for salmonid juveniles

Knowledge and Management of Aquatic Ecosystems
Climate change is increasing the intensity and frequency of hydrological events in freshwater. Summer droughts and drying events drastically reduce the favourable habitat for aquatic organisms shaping interactions among species.
Arevalo Elorri, Bardonnet Agnès, Glise Stéphane, Gueraud François, Huchet Emmanuel, Lange Frédéric, Rives Jacques, Larrañaga Aitor   +7 more
doaj   +1 more source

Soil Macroinvertebrate Presence Alters Microbial Community Composition and Activity in the Rhizosphere

Frontiers in Microbiology, 2019
Despite decades of research, our understanding of the importance of invertebrates for soil biogeochemical processes remains incomplete. This is especially true when considering soil invertebrate effects mediated through their interactions with soil ...
Natalie Bray, Jenny Kao-Kniffin, Serita D. Frey, Timothy Fahey, Kyle Wickings   +4 more
doaj   +1 more source

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Habitat filtering determines spatial variation of macroinvertebrate community traits in northern headwater streams

, 2013
Although our knowledge of the spatial distribution of stream organisms has been increasing rapidly in the last decades, there is still little consensus about trait-based variability of macroinvertebrate communities within and between catchments in near ...
J. Heino, Erős, Tibor, T. Erős, Erős, T., D. Schmera, Heino, Jani, Schmera, D., Schmera, Dénes, Heino, J.   +8 more
core   +1 more source

Development and Improvement of Habitat Suitability Criteria for Instream Habitat Assessments Conducted in Support of Environmental Flows in Florida

River Research and Applications, EarlyView.
ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley   +1 more source

Restoring Lateral Connectivity to Anthropogenic Riverscapes: Six Lessons From Stage Zero

River Research and Applications, EarlyView.
ABSTRACT Centuries of river modification, particularly straightening and incision, have severely reduced lateral connectivity between rivers and their floodplains. As a result, Stage 0 riverscapes, characterised by high lateral connectivity (e.g., anastomosing or wetland riverscapes), are now rare in anthropogenic landscapes.
Richard J. Mason, Matthew F. Johnson, Ben Eardley, Matthew J. Hemsworth, Arnaud Foret, Luca Mao, Matt Parr, Alan Puttock, Richard E. Brazier   +8 more
wiley   +1 more source