Results 71 to 80 of about 58,361 (344)

Life‐history strategies in freshwater macroinvertebrates [PDF]

Freshwater Biology, 2008
Summary Explaining spatial and temporal differences in species assemblages is a central aim of ecology. It requires a sound understanding of the causal mechanisms underlying the relationship of species with their environment. A species trait is widely acknowledged to be the key that links pattern and process, although the enormous variety of traits ...
Verberk, W.C.E.P., Siepel, H., Esselink, H.   +2 more
openaire   +3 more sources

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

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

Low flow controls on benthic and hyporheic macroinvertebrate assemblages during supra-seasonal drought [PDF]

, 2009
Despite the widely accepted importance of the hyporheic zone as a habitat for stream macroinvertebrates during floods, few data exist regarding community composition and distribution during periods of low flow or drought in perennial streamsi ...
Acuna, Battin, Bo, Bonada, Bou, Boulton, Boulton, Boulton, Boulton, Boulton, Boulton, Boulton, Brunke, Caruso, Clinton, Datry, Davy-Bowker, del Rosario, Demuth, Dewson, Dole-Olivier, Extence, Fenoglio, Gibert, Hannah, Harris, Harrison, Hendricks, Hose, Humphries, James, Lake, Lake, Lefebvre, Lytle, Malard, Malcolm, Marsh, Marsh, Marxsen, Meyer, Monk, Mulholland, Parr, Pinay, Prior, Smakhtin, Smakhtin, Smock, Stanford, Stofleth, Suren, Suren, Tallaksen, Tomlinson, Westwood, Williams, Wood, Wood, Wood, Wood, Wood, Wood, Wright, Wright, Youngson   +65 more
core   +2 more sources

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

Remote Sensing in Ecology and Conservation, EarlyView.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command, Shreya Nemani, Benjamin Misiuk, Mehrdad Hajibabaei, Nicole Fahner, Emily Porter, Greg Singer, Beverly McClenaghan, Katleen Robert   +8 more
wiley   +1 more source

Oxidative Damage, Energy Imbalance, and Behavioral Disruptions in Girardia tigrina Exposed to Treated Sewage Effluents

Environmental Toxicology, EarlyView.
ABSTRACT This study assessed the ecotoxicological effects of treated sewage on the freshwater planarian Girardia tigrina, integrating biochemical, energetic, and behavioral biomarkers. Planarians were exposed for 48 h to different concentrations of treated sewage (12.5%, 25%, 50%, and 100%) and compared to controls using commercial water and water from
Renata M. P. Freitas, Pedro H. Carvalho, Daniela de Melo e Silva, Carlos Gravato   +3 more
wiley   +1 more source

Aquatic Macroinvertebrates as Indicators of Climate Change in the Riparian Environments of the Mediterranean Region

Land
The Mediterranean region is one of the 36 hotspots of the world that will be most affected by climate change, with river ecosystems being among the most sensitive to these effects. Therefore, it is necessary to understand and monitor the effects that are
Samanta Espinar-Herranz, Javier Velázquez, Guillermo Pérez-Andueza, Kerim Çiçek, Víctor Rincón   +4 more
doaj   +1 more source

Campsurus truncatus Ulmer, 1920 (Polymitarcyidae): an Ephemeroptera in eutrophic waters

Acta Limnologica Brasiliensia, 2020
: Aim The order Ephemeroptera, together with Trichoptera and Plecoptera, has been considered as sensitive in environmental quality assessment. However, the species Campsurus truncatus Ulmer 1920 (Polymitarcyidae) has been sampled in anthropically ...
Mônica Luisa Kuhlmann, Hélio Rubens Victorino Imbimbo, Helena Mitiko Watanabe   +2 more
doaj   +1 more source

Beyond Removal Efficiency: Environmental Risk Assessment of Tartrazine Degradation via ZnO and TiO2 Nanoparticles in Mussels

Environmental Toxicology, EarlyView.
ABSTRACT Tartrazine (TZ) is a widely used synthetic azo dye with high aqueous stability, resulting in persistence in wastewater. Photoreactive nanomaterials, principally zinc oxide (ZnO) and titanium dioxide (TiO2) nanoparticles (NPs), are frequently employed for dye removal under light‐exposed conditions; nevertheless, their ecotoxicological ...
İrem Can, Ezgi Can Güzel, Volkan Saritunç, Selin Ertürk Gürkan   +3 more
wiley   +1 more source

Assessment of chromium contamination in the Monte Alegre stream: a case study

Brazilian Archives of Biology and Technology, 2011
The aim of this work was to study the contamination by chromium in the sediments of the Monte Alegre stream and in the larvae of Odonata and the possible impact caused by them on the stream macroinvertebrates community.
Juliano José Corbi, Felipe André dos Santos, Ricardo Zerlin, Ademir dos Santos, Claudio Gilberto Froehlich, Susana Trivinho-Strixino   +5 more
doaj   +1 more source