The noble crayfish, Astacus astacus, is an indigenous European freshwater species. Its
populations show significant declines caused by anthropogenic pressure on its habitats …

There is a long history of crayfish introductions in Europe and numbers keep increasing. In
Hungary, spiny-cheek crayfish Faxonius limosus, signal crayfish Pacifastacus leniusculus …

The spread of non-native species results in novel and often unexpected assemblages.
Using stable isotopes, we disentangled the trophic relationships between three invasive …

Amphipods have diversified greatly in the Ponto-Caspian region. Although many of these
species are prominent invaders their systematics remains unclear. Taking an integrative …

Simple Summary Understanding variations in the morphology and age of animals along a
geographical gradient may aid in our comprehension of the evolution of these animals. In …

The narrow-clawed crayfish Pontastacus leptodactylus is a large native European astacid
crayfish species distributed in the drainage area of the Azov, Black and Caspian Seas. The …

Phenotypic variation of morphological and physiological traits is assumed to be generated
from spatial heterogeneity in environments, and it has been regarded as an important …

Pontastacus leptodactylus (Eschscholtz, 1823)(Decapoda: Astacidea: Astacidae) constitutes
an ecologically and economically highly important species. In the present study, the …

Background The noble crayfish (Astacus astacus) is a native European species in decline,
with a contracting range and diminishing populations and abundance. Previous studies …

In the fresh waters of Sardinia (Italy), the non-indigenous crayfish species Procambarus
clarkii has been reported from 2005, but, starting from 2019, there have been several reports …