Received: 9 August 2019 | Accepted: 7 October 2019 DOI: 10.1111/1365-2745.13308 RESEARCH ARTICLE Climate teleconnections synchronize Picea glauca masting and fire disturbance: Evidence for a fire‐related form of environmental prediction Davide Ascoli1 | Andrew Hacket‐Pain2 | Jalene M. LaMontagne3 | Adrián Cardil4 | Marco Conedera5 | Janet Maringer5 | Renzo Motta1 | Ian S. Pearse6 | Giorgio Vacchiano7 1Department of Agricultural, Forestry and Food Sciences, University of Torino, Grugliasco, Italy; 2Department of Geography and Planning, School of Environmental Sciences, University of Liverpool, Liverpool, UK; 3Department of Biological Sciences, DePaul University, Chicago, IL, USA; 4Department of Crops and Forest Sciences, University of Lleida, Lleida, Spain; 5Insubric Ecosystems, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Cadenazzo, Switzerland; 6Fort Collins Science Center, U.S. Geological Survey, Fort Collins, CO, USA and 7Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy Correspondence Davide Ascoli Abstract Email:
[email protected] 1. Synchronous pulses of seed masting and natural disturbance have positive feed- Funding information backs on the reproduction of masting species in disturbance-prone ecosystems. Natural Environment Research Council, We test the hypotheses that disturbances and proximate causes of masting are Grant/Award Number: NE/S007857/1; NSF, Grant/Award Number: DEB-1745496 correlated, and that their large-scale synchrony is driven by similar climate tel- econnection patterns at both inter-annual and decadal time scales. Handling Editor: Peter Bellingham 2. Hypotheses were tested on white spruce (Picea glauca), a masting species which surprisingly persists in fire-prone boreal forests while lacking clear fire adap- tations. We built masting, drought and fire indices at regional (Alaska, Yukon, Alberta, Quebec) and sub-continental scales (western North America) spanning the second half of the 20th century.