Results 41 to 50 of about 17,038 (205)
River Research and Applications, EarlyView.ABSTRACT Ditches are essential elements of the agricultural landscape because of their role as habitat or refuge for aquatic species, especially in homogenized and intensively cultivated areas. However, data on the biodiversity associated with agricultural ditches, and its variation over time, are underrepresented in ecological research.
Michela Rappocciolo +5 more
wiley +1 more source
Potential Impacts of Low Flows on Fish Foodscapes and Production in a Braided River
River Research and Applications, EarlyView.ABSTRACT Changes in river discharge affect the physical composition and connectivity of habitats which, in turn, may shape the spatial distribution of fish food abundance, accessibility and quality—the ‘foodscape’—of river ecosystems. However, the influence of river flows on fish foodscapes has received very little attention from scientists. We studied
Rick J. Stoffels +11 more
wiley +1 more source
The impact of cattle drinking points on aquatic macroinvertebrates in streams in south-east Ireland [PDF]
, 2019 peer-reviewedTeagasc PublicationMeasures that prevent cattle access to watercourses are commonly implemented through agri-environment schemes, in an effort to address the objectives of the Water Framework Directive. Despite the widespread implementation,
Finn, John +3 more
core +2 more sources
Sperm models in European Plecoptera
Arthropod Structure & Development, 2023 Systematic issues regarding Plecoptera are still debated, and the molecular data seem to be unable to definitively clarify the relationships within the order. Spermatozoa are under constant evolutionary pressure, and comparative spermatology can be useful in carrying systematic and phylogenetic information.
Anna Maria Fausto +5 more
openaire +2 more sources
Lessons Learnt From Long‐Term Monitoring of River Restoration in an English Chalk Stream
River Research and Applications, EarlyView.ABSTRACT River restoration can be difficult to evaluate due to insufficient monitoring over timescales too short to adequately capture physical and ecological response. To better understand restoration outcomes, this study quantified changes in physical habitat (depth, velocity, substrate composition) and macroinvertebrates at two restoration projects ...
Lewis A. Dolman +2 more
wiley +1 more source
Annotated List of Stoneflies (Plecoptera) from Stebbins Gulch in Northeastern Ohio [PDF]
, 2017 (excerpt) Stebbins Gulch is situated within property owned by The Holden Arboretum in northwestern Geauga County, Ohio, approximately 8.0 km east of the village of Kirtland (Fig. 1).
Foote, B. A, Tkac, Martin A
core +3 more sources
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 +3 more
wiley +1 more source
The communities of running water in Cumbria [PDF]
, 1976 For conservations of nature to be effective. there must be an understanding of what is present to be conserved. Thus in order to conserve the communites of the Cumbrian rivers, there must first be surveys to determine the spp present and their relative ...
Macan, T.T.
core
Aquatic Insect Colonization and Substrate Changes in a Relocated Stream Segment [PDF]
, 2017 A section of Bear Creek in northwestern Wisconsin was relocated to accommodate new highway construction. The 850-m section of the stream was shortened to 650 m and fashioned with five broad bends and a uniform width and depth. Sandy substrate and lack of
Narf, Richard P
core +2 more sources
Strong diel variation in the activity of insect taxa sampled by Malaise traps
Ecological Entomology, EarlyView.Malaise traps sampled different communities during mornings (06:00–12:00), afternoons (12:00–16:00), evenings (18:00–22:00), and nights (22:00–06:00), highlighting the difference in diel rhythm between taxa. The highest diversity and abundance of insects were found during afternoons, the lowest diversity during night, and the lowest abundance during ...
Viktor Gårdman +2 more
wiley +1 more source