Morphological differentiation between studied male and female gammarid species according to principal component analyses (PCAs) of all traits (a), antennae (b), gnathopods (c), pereiopods+coxae (d) and mouthparts (e).

 
 
  Part of: Pelikan L, Šidagytė-Copilas E, Garbaras A, Jourdan J, Copilaș-Ciocianu D (2024) Competitive interaction in headwaters: slow upstream migration leads to trophic competition between native and non-native amphipods. NeoBiota 90: 193-216. https://doi.org/10.3897/neobiota.90.112383