Global climate change has led to more frequent and severe droughts, which can negatively affect instream invertebrate communities, but we lack a perspective on the global patterns drivers of such drought effects. Here, using meta-analysis, synthesized 997 paired observations extracted from 94 peer-reviewed publications assess how affects biomass, density, taxonomic richness, diversity (Shannon–...

English for Specific Academic Purposes (ESAP) uses the results of needs analysis for curriculum development and materials production. ESAP courses should be based on students’ academic needs. Consequently, the present study investigated the English language needs of Iranian undergraduate students of Law. Participants included 218 undergraduate students, 33 graduate students, and 10 content teac...

This study used pattern-oriented modelling (POM) to investigate the space use and behavioural response of upstream migrating European river lamprey (Lampetra fluviatilis) two-dimensional hydrodynamic conditions created by an instream structure (triangular profile gauging weir). Passive Integrated Transponder (PIT) acoustic telemetry were map spatial-temporal distribution patterns as they migrat...

The Elements of Metacommunity Structure (EMS) framework gives rise to important ecological insights through the distinction of metacommunities into several different idealised structures. We examined the EMS in assemblages occupying a low-mountain river system in central Germany, sampled over three consecutive years. We compared the idealised distributions of assemblages in both the riparian fl...

The potamodromous smallscale redfin minnow (Pseudobarbus asper) spawned in the riffle areas of the regulated Groot River, the major tributary of the Gamtoos River system, during controlled releases of water from Beervlei Dam. Water had been released at irregular intervals from this flood control dam solely for irrigating agricultural lands. Flushing flows removed accumuIated salts from riverine...

We applied the SPARROW model to estimate phosphorus transport from catchments to stream reaches and subsequent delivery to major receiving water bodies in the Southeastern United States (U.S.). We show that six source variables and five land-to-water transport variables are significant (p<0.05) in explaining 67% of the variability in long-term log-transformed mean annual phosphorus yields. Thre...

Despite considerable investment, some UK bathing waters fail to comply with mandatory standards as defined by the EU Bathing Water Directive (76/160/EEC). Continued non-compliance has been associated with diffuse sources of faecal indicator organism (FIO) contamination, in particular those deriving from agricultural land. This paper examines concentrations of FIOs in surface, subsurface and ins...

Rivers are among the ecosystems that have been most damaged by human pressure, especially in European countries where most streams are regulated. An important instrument to mitigate such impacts is to provide adequate ecological flows, which allows for the preservation of fish populations. Nowadays, many rivers are invaded by exotic species that, being more opportunistic and tolerant, are chang...