Macroland project – Effect of landscape fragmentation on the red squirrel Sciurus vulgaris

The project aims to investigate the effects of landscape fragmentation on population connectivity. The objective is to better understand the spatial distribution of individuals and their ability to move between habitat fragments in urban and peri-urban environments.

Sampling was conducted using a network of hair traps installed across landscapes exhibiting varying degrees of fragmentation. These devices enable mammal detection through hair collection, which is then used for species identification and individual genotyping. The dataset includes occurrence data of red squirrels and other small mammals by trap and sampling site, derived from hair sampling.