ZoologybioRxivPreprint
Water diviners multiplied: cryptic diversity in the Niphargus aquilex species complex in Northern Europe
Dieter Weber, Traian Brad, Alexander Martin Weigand, Jean‐François Flot
The paper identifies cryptic species within two widespread groundwater amphipod morphospecies, challenging the Rapoport effect by showing morphological stasis rather than range size differences.