Recent research on the environmental migration nexus emphasises the need to consider immobile populations alongside those who migrate. A subset of these immobile groups is particularly vulnerable to environmental stressors and lacks the capacity to either adapt or move, a condition often referred to as involuntary immobility or “trapped populations”. Despite growing recognition of this phenomenon, limited knowledge exists on h...

Summary Desert biological soil crusts ( BSC s) are formed by adhesion of soil particles to polysaccharides excreted by filamentous cyanobacteria, the pioneers and main producers in this habitat. Biological soil crust destruction is a central factor leading to land degradation and desertification. We study the effect of BSC structure on cyanobacterial activity. Micro‐scale structural analysis using X ‐ray microtomography reveal...