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 second edition of this widely cited textbook continues to provide a concise but
comprehensive introduction to cave and subterranean biology, describing this fascinating …

Adaptive radiations are bursts of evolutionary species diversification that have contributed to
much of the species diversity on Earth. An exception is modern Europe, where descendants …

Traditional morphological diagnoses of taxonomic status remain widely used while an
increasing number of studies show that one morphospecies might hide cryptic diversity, ie …

Groundwater comprises the largest freshwater ecosystem on the planet. It has a distinct
regime of extreme, yet stable environmental conditions that have favoured the development …

The formation of continental Europe in the Neogene was due to the regression of the Tethys
Ocean and of the Paratethys Sea. The dynamic geology of the area and repetitious …

The ecological radiation of amphipods is striking among crustaceans. Despite high diversity,
global distribution and key roles in all aquatic environments, little is known about their …

The territory of Montenegro includes three freshwater ecoregional units: the Dalmatian, the
Southeastern Adriatic, and the Dniester-Lower Danube Ecoregions. The boundaries of the …

Background The Balkans are a major worldwide biodiversity and endemism hotspot. Among
the freshwater biota, amphipods are known for their high cryptic diversity. However, little is …

Aim Groundwater harbours an exceptional fauna and provides invaluable ecosystem
services, yet is among the least explored and consequently least protected ecosystems …