Referenced stable isotope biplot of studied amphipods showing trophic niches by site (means ± SD). Point size reflects animal body size. Green labels at the means correspond to site IDs from Table 1.

 
 
  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