The Pyrenean Institute of Ecology (IPE) is a research center integrated in the Superior Council of Scientific Research (CSIC), within the Natural Resources Area. It has two locations, one in Jaca and another in Zaragoza and our main mission is to contribute to the understanding of the functioning and structure of terrestrial systems and the organisms that inhabit them. We investigate the changes that occur in these systems as a consequence of Global Change, including climate variability and human activities providing the scientific basis for their conservation and management. Integrative knowledge and historical perspective are necessary elements to advance our understanding of ecosystems, landscapes and societies and their response to global change. And in these two pillars lies our mission: to understand the organization and functioning of terrestrial natural systems, including the biological, hydrological, climatic, geomorphological and anthropic aspects at temporal scales that include from the glacial / interglacial cycles during the Quaternary to the monitoring annual of our ecosystems and species. Both in the context of the CSIC and in the Spanish field we are singled out by this integrative scientific strategy in terrestrial ecology and global change, with a holistic and historical double facet. And although we are a center focused on the mountain, the effort of IPE researchers covers other geographical contexts in Europe, Africa and the Americas.