The species concept is the cornerstone of biodiversity science, and any paradigm shift in the
delimitation of species affects many research fields. Many biologists now are embracing a …

The origin of the populations used in ecotoxicological bioassays (from nature (wild
populations) or from cultures (laboratory populations)) could have a key influence on the …

Most freshwater ecosystems are subject to multiple anthropogenic stressors, which
commonly reduce biodiversity across all levels. Existing freshwater bioassessment …

Background The discovery of cryptic species complexes within morphologically established
species comes with challenges in the classification and handling of these species. We …

Recent studies indicate that morphologically cryptic species may be ecologically more
different than would be predicted from their morphological similarity and phylogenetic …

Recent discoveries of vast cryptic diversity among various aquatic invertebrates pose a
challenge for understanding their ecology and biodiversity patterns, as well as for …

Field and laboratory studies have shown that mayflies (Ephemeroptera) tend to be relatively
sensitive to elevated major ion concentrations, but little is known about how ionic …

Abstract The US Environmental Protection Agency (USEPA) is reviewing the protectiveness
of the national ambient water quality criteria (WQC) for nickel (Ni) and zinc (Zn) and …

The salinization of freshwater ecosystems is emerging as a major ecological issue. Several
anthropogenic causes of salinization (eg surface coal mining, hydro-fracking, road de-icing …

Recent studies demonstrated pyrethroid resistance associated with voltage-gated sodium
channel mutations in populations of the epibenthic amphipod, Hyalella azteca. Resistant …