|Plot-scale evidence of tundra vegetation change and links to recent summer warming|
SC Elmendorf, GHR Henry, RD Hollister, RG Björk, N Boulanger-Lapointe, ...
Nature climate change 2 (6), 453-457, 2012
|Increasing wildfires threaten historic carbon sink of boreal forest soils|
XJ Walker, JL Baltzer, SG Cumming, NJ Day, C Ebert, S Goetz, ...
Nature 572 (7770), 520-523, 2019
|Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests|
XJ Walker, MC Mack, JF Johnstone
Global Change Biology 21 (8), 3102-3113, 2015
|Widespread negative correlations between black spruce growth and temperature across topographic moisture gradients in the boreal forest|
X Walker, JF Johnstone
Environmental Research Letters 9 (6), 064016, 2014
|Cross‐scale controls on carbon emissions from boreal forest megafires|
XJ Walker, BM Rogers, JL Baltzer, SG Cumming, NJ Day, SJ Goetz, ...
Global Change Biology 24 (9), 4251-4265, 2018
|Wildfire severity reduces richness and alters composition of soil fungal communities in boreal forests of western Canada|
NJ Day, KE Dunfield, JF Johnstone, MC Mack, MR Turetsky, XJ Walker, ...
Global change biology 25 (7), 2310-2324, 2019
|Postfire seed rain of black spruce, a semiserotinous conifer, in forests of interior Alaska|
J Johnstone, L Boby, E Tissier, M Mack, D Verbyla, X Walker
Canadian Journal of Forest Research 39 (8), 1575-1588, 2009
|Carbon loss from boreal forest wildfires offset by increased dominance of deciduous trees|
MC Mack, XJ Walker, JF Johnstone, HD Alexander, AM Melvin, M Jean, ...
Science 372 (6539), 280-283, 2021
|Soil organic layer combustion in boreal black spruce and jack pine stands of the Northwest Territories, Canada|
XJ Walker, JL Baltzer, SG Cumming, NJ Day, JF Johnstone, BM Rogers, ...
International Journal of Wildland Fire 27 (2), 125-134, 2018
|Reproduction as a bottleneck to treeline advance across the circumarctic forest tundra ecotone|
CD Brown, G Dufour‐Tremblay, RG Jameson, SD Mamet, AJ Trant, ...
Ecography 42 (1), 137-147, 2019
|Fuel availability not fire weather controls boreal wildfire severity and carbon emissions|
XJ Walker, BM Rogers, S Veraverbeke, JF Johnstone, JL Baltzer, ...
Nature Climate Change 10 (12), 1130-1136, 2020
|Reproduction and seedling establishment of Picea glauca across the northernmost forest‐tundra region in Canada|
X Walker, GHR Henry, K McLeod, A Hofgaard
Global Change Biology 18 (10), 3202-3211, 2012
|Increasing fire and the decline of fire adapted black spruce in the boreal forest|
JL Baltzer, NJ Day, XJ Walker, D Greene, MC Mack, HD Alexander, ...
Proceedings of the National Academy of Sciences 118 (45), e2024872118, 2021
|Wildfire combustion and carbon stocks in the southern Canadian boreal forest: Implications for a warming world|
CM Dieleman, BM Rogers, S Potter, S Veraverbeke, JF Johnstone, ...
Global change biology 26 (11), 6062-6079, 2020
|Predicting ecosystem resilience to fire from tree ring analysis in black spruce forests|
XJ Walker, MC Mack, JF Johnstone
Ecosystems 20 (6), 1137-1150, 2017
|Impacts of climate and insect herbivory on productivity and physiology of trembling aspen (Populus tremuloides) in Alaskan boreal forests|
MA Boyd, LT Berner, P Doak, SJ Goetz, BM Rogers, D Wagner, XJ Walker, ...
Environmental Research Letters 14 (8), 085010, 2019
|Direct and longer-term carbon emissions from arctic-boreal fires: A short review of recent advances|
S Veraverbeke, CJF Delcourt, E Kukavskaya, M Mack, X Walker, T Hessilt, ...
Current Opinion in Environmental Science & Health 23, 100277, 2021
|Climate change decreases the cooling effect from postfire albedo in boreal North America|
S Potter, K Solvik, A Erb, SJ Goetz, JF Johnstone, MC Mack, ...
Global change biology 26 (3), 1592-1607, 2020
|Reproductive limitation mediates the response of white spruce (Picea glauca) to climate warming across the forest–tundra ecotone|
TC Lantz, ND Moffat, RH Fraser, X Walker
Arctic Science 5 (4), 167-184, 2019
|Fire characteristics and environmental conditions shape plant communities via regeneration strategy|
NJ Day, AL White, JF Johnstone, GÉ Degré‐Timmons, SG Cumming, ...
Ecography 43 (10), 1464-1474, 2020