Human activity has shaped our current landscapes dramatically through the conversion of natural habitats. This has caused significant habitat loss, which is one of the major threats to wildlife. Habitat loss does not only mean a reduced amount of available habitat, since this process does not occur uniformly across the landscape, but it is also linked with the fragmentation of habitat in smaller and possibly isolated patches. Both processes make species dispersal difficult, which has dire effects on species survival, not only because of higher mortality risks and loss of habitat colonization but also because gene flow is interrupted and inbreeding becomes more likely.

For amphibians, the situation is even more complicated since they lack great dispersal abilities and are highly vulnerable when crossing roads and human landscapes. Therefore, it is key to improve the connectivity among amphibian populations and to increase the amount of reachable habitat. Signs for drivers and underpasses can facilitate crossing roads for amphibians. Also, creating corridors and intermediate ponds that act as stepping stones between populations can substantially improve connectivity.

In this regard, researchers suspect that quarries can play a key role in connectivity since water ponds suitable for amphibians are usually created inside them. These ponds can hold several amphibian species and can create, receive and amplify dispersal flows of individuals towards other populations.