Localisation of the 11 selected hydrologically independent blocks within the Marais poitevin (delimited by a red line) where crayfish were sampled in specific ditches (blue dots) within dense networks of ditches.

 
 
  Part of: Mauchamp A, Bonis A, Crabot J, Bergerot B, Gore O, Paillisson J-M (2025) Environmental conditions can affect the spatiotemporal variation of invasive crayfish abundance in agricultural marshlands. Aquatic Invasions 20(3): 335-353. https://doi.org/10.3391/ai.2025.20.3.153547