Burned area and carbon emissions across northwestern boreal North America from 2001–2019

Autor: S. Potter, S. Cooperdock, S. Veraverbeke, X. Walker, M. C. Mack, S. J. Goetz, J. Baltzer, L. Bourgeau-Chavez, A. Burrell, C. Dieleman, N. French, S. Hantson, E. E. Hoy, L. Jenkins, J. F. Johnstone, E. S. Kane, S. M. Natali, J. T. Randerson, M. R. Turetsky, E. Whitman, E. Wiggins, B. M. Rogers

Publikováno v: Biogeosciences, Vol 20, Pp 2785-2804 (2023)

Fire is the dominant disturbance agent in Alaskan and Canadian boreal ecosystems and releases large amounts of carbon into the atmosphere. Burned area and carbon emissions have been increasing with climate change, which have the potential to alter th

Externí odkaz: https://doaj.org/article/fba8328e9d7f4b5ba9b6a3f8b12a31d3

Black spruce (Picea mariana) seed availability and viability in boreal forests after large wildfires

Autor: Kirsten A. Reid, Nicola J. Day, Raquel Alfaro-Sánchez, Jill F. Johnstone, Steven G. Cumming, Michelle C. Mack, Merritt R. Turetsky, Xanthe J. Walker, Jennifer L. Baltzer

Publikováno v: Annals of Forest Science, Vol 80, Iss 1, Pp 1-16 (2023)

Abstract Key message Black spruce (Picea mariana (Mill.) B.S.P.) has historically self-replaced following wildfire, but recent evidence suggests that this is changing. One factor could be negative impacts of intensifying fire activity on black spruce

Externí odkaz: https://doaj.org/article/20fb86bd9ab541a497af90ce4db646d7

Limits to reproduction and seed size-number trade-offs that shape forest dominance and future recovery

Autor: Tong Qiu, Robert Andrus, Marie-Claire Aravena, Davide Ascoli, Yves Bergeron, Roberta Berretti, Daniel Berveiller, Michal Bogdziewicz, Thomas Boivin, Raul Bonal, Don C. Bragg, Thomas Caignard, Rafael Calama, J. Julio Camarero, Chia-Hao Chang-Yang, Natalie L. Cleavitt, Benoit Courbaud, Francois Courbet, Thomas Curt, Adrian J. Das, Evangelia Daskalakou, Hendrik Davi, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Sergio Donoso Calderon, Laurent Dormont, Josep Espelta, Timothy J. Fahey, William Farfan-Rios, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzer, Cathryn H. Greenberg, Qinfeng Guo, Andrew Hacket-Pain, Arndt Hampe, Qingmin Han, Janneke Hille Ris Lambers, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Valentin Journé, Daisuke Kabeya, Christopher L. Kilner, Thomas Kitzberger, Johannes M. H. Knops, Richard K. Kobe, Georges Kunstler, Jonathan G. A. Lageard, Jalene M. LaMontagne, Mateusz Ledwon, Francois Lefevre, Theodor Leininger, Jean-Marc Limousin, James A. Lutz, Diana Macias, Eliot J. B. McIntire, Christopher M. Moore, Emily Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Kyotaro Noguchi, Jean-Marc Ourcival, Robert Parmenter, Ian S. Pearse, Ignacio M. Perez-Ramos, Lukasz Piechnik, John Poulsen, Renata Poulton-Kamakura, Miranda D. Redmond, Chantal D. Reid, Kyle C. Rodman, Francisco Rodriguez-Sanchez, Javier D. Sanguinetti, C. Lane Scher, William H. Schlesinger, Harald Schmidt Van Marle, Barbara Seget, Shubhi Sharma, Miles Silman, Michael A. Steele, Nathan L. Stephenson, Jacob N. Straub, I-Fang Sun, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Thomas T. Veblen, Amy V. Whipple, Thomas G. Whitham, Andreas P. Wion, Boyd Wright, S. Joseph Wright, Kai Zhu, Jess K. Zimmerman, Roman Zlotin, Magdalena Zywiec, James S. Clark

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)

The relationships that control seed production in trees are key to understand evolutionary pressures that have shaped forests. A global synthesis of fecundity data reveals that while seed production is not constrained by a strict size-number trade-of

Externí odkaz: https://doaj.org/article/e0551c2a31d14e5bb00241799573bc59

Antimicrobial peptides: Defending the mucosal epithelial barrier

Autor: Karen F. Johnstone, Mark C. Herzberg

Publikováno v: Frontiers in Oral Health, Vol 3 (2022)

The recent epidemic caused by aerosolized SARS-CoV-2 virus illustrates the importance and vulnerability of the mucosal epithelial barrier against infection. Antimicrobial proteins and peptides (AMPs) are key to the epithelial barrier, providing immun

Externí odkaz: https://doaj.org/article/ece9d64ca0da43b6adc07699e95fc89a

Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology

Autor: C. M. DeBeer, H. S. Wheater, J. W. Pomeroy, A. G. Barr, J. L. Baltzer, J. F. Johnstone, M. R. Turetsky, R. E. Stewart, M. Hayashi, G. van der Kamp, S. Marshall, E. Campbell, P. Marsh, S. K. Carey, W. L. Quinton, Y. Li, S. Razavi, A. Berg, J. J. McDonnell, C. Spence, W. D. Helgason, A. M. Ireson, T. A. Black, M. Elshamy, F. Yassin, B. Davison, A. Howard, J. M. Thériault, K. Shook, M. N. Demuth, A. Pietroniro

Publikováno v: Hydrology and Earth System Sciences, Vol 25, Pp 1849-1882 (2021)

The interior of western Canada, like many similar cold mid- to high-latitude regions worldwide, is undergoing extensive and rapid climate and environmental change, which may accelerate in the coming decades. Understanding and predicting changes in co

Externí odkaz: https://doaj.org/article/946be1658aca485c8322d6862b85c1ab