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“Introduction Batimastat mouse habitat loss and degradation are the greatest extinction threats to biodiversity in a variety of ecosystems and taxonomic groups (Jager et al. 2006; Fischer and Aspartate Lindenmayer 2007). The process of habitat degradation implies the gradual deterioration of habitat quality and can generate a pattern of variation in patch quality for a given species (Mortelliti et al. 2010). In degraded habitat a species may decline, occur at a lower density, or be unable to breed, thus the area becomes an “ecological trap” to which individuals of a species are attracted, but in which they cannot reproduce (Felton et al. 2003; Battin 2004; Hazell et al. 2004). Fragmentation makes the difference between persistence and extinction, since longer dispersal distances to find territories increases movement-related mortality, territories include lower quality habitat, which elevated habitat-related mortality and Alee effects (failure to find mates) reduce births (Jager et al. 2006). Habitat isolation can have a negative effect not only on the dispersal of juveniles (by decreasing population connectivity) but also, and to an even greater extent, on the day-to-day movements of a given territorial species (Fahrig 2003; Fischer and Lindenmayer 2007; Zabala et al. 2007b; Zalewski et al. 2009).