In this overview (introductory article to a special issue including 14 papers), we consider all
main types of natural and artificial inland freshwater habitas (fwh). For each type, we identify …

Most bioassessment programs rest on the assumption that species have different niches,
and that abiotic environmental conditions and changes therein determine community …

Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important
groups of phytoplankton. They are considered to be particularly important in nutrient-rich …

Relationships between traits of organisms and the structure of their metacommunities have
so far mainly been explored with meta‐analyses. We compared metacommunities of a wide …

The number of extant species of diatoms is estimated here to be at least 30,000 and
probably ca. 100,000, by extrapolation from an eclectic sample of genera and species …

Aim An intensively debated issue in macroecology is whether unicellular organisms show
biogeographic patterns different from those of macroorganisms. One aspect of this debate …

The relationship between species diversity and ecosystem functioning has been debated for
decades, especially in relation to the “macroscopic” realm (higher plants and metazoans) …

Connectivity links habitats in space and time. It is a key process that facilitates many life-
history functions of myriad species in a variety of contexts over a wide range of scales …

The aim of this paper is to review literature on species diversity patterns of freshwater
organisms and underlying mechanisms at large spatial scales. 2. Some freshwater taxa (eg …

Aim To examine species and trait composition in stream diatoms along environmental,
climatic and spatial gradients and to ascertain if the use of different levels of biological …