The team (IMAGE) Frontiers Caption Local foresters, graduate students and faculties from the state University of Michoacán, México, who established the experiments at Nevado de Toluca. This is a site at 3600 m of elevation, shortly above the maximum natural limit distribution of Abies religiosa (about 3550 m). Credit Cuauhtémoc Sáenz-Romero, UMSNH Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.