Justine Karst, PhD, MSc, BSc

Associate Professor, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept


Associate Professor, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept
(780) 492-4942
334A Earth Sciences Building
11223 Saskatchewan Drive NW
Edmonton AB
T6G 2E3


Area of Study / Keywords

mycorrhizal ecology of forests


Research Area: Mycorrhizal ecology

Areas of expertise: ectomycorrhizal ecology; forest ecology; restoration; root ecology; disturbance

Featured Publications

Large-diameter trees and deadwood correspond with belowground ectomycorrhizal fungal richness

Birch, J, Lutz JA, Miesel JR, Karst J

Ecological Processes. 2023 January; 12

Soil transfers from intact to disturbed boreal forests neither alter ectomycorrhizal fungal communities nor improve pine seedling performance.

Rodriguez-Ramos J, Cale J, Cahill J, Erbilgin N, Karst J.

Journal of Applied Ecology. 2022 July; 59 (9):2430-2439

Dancing with Douglas-fir: Determinism dominates fungal community assembly processes.

Birch J, Lutz J; Karst J.

Journal of Ecology. 2022 April; 110 (8):1857-1870

Soil inoculation of lodgepole pine seedlings alters root-associated fungal communities but does not improve seedling performance in beetle-killed pine stands

Wasyliw J*, Fellrath E*, Pec G, Cale J, Franklin J, Thomasson C, Erbilgin N, Karst J.

Restoration Ecology. 2022 February; 31 (1):e13663

The effects of ectomycorrhizal fungal networks on seedling establishment are contingent on species and severity of overstorey mortality.

Pec G, Simard S, Cahill J, Karst J.

Mycorrhiza. 2022 February; 30

Divergent, age-associated fungal communities of Pinus flexilis and Pinus longaeva.

Birch J, Lutz J, Turner B, Karst J.

Forest Ecology and Management. 2021 August; 494

Long-term nitrogen addition does not sustain host tree stem radial growth but doubles the abundance of high-biomass ectomycorrhizal fungi.

Karst J, Wasyliw J, Birch JD, Franklin J, Chang SX, Erbilgin N.

Global Change Biology. 2021 May; 27 (17):4125-4138

Assessing the dual-mycorrhizal status of a widespread tree species as a model for studies on stand biogeochemistry

Karst J, Franklin J, Simeon A, Light A, Bennett JA, Erbilgin N.

Mycorrhiza. 2021 April; 31

Shifts in ectomycorrhizal exploration types parallel leaf and fine root area with forest age.

Wasyliw J, Karst J

Journal of Ecology. 2020 August; 108 (6):2270-2282

Changes in soil fungal community composition depend on functional group and forest disturbance type.

Rodriguez-Ramos J, Cale J, Cahill J, Simard S, Karst J*, Erbilgin N*.

New Phytologist. 2020 June; 229 (2):1105-1117

Beyond seedlings: ectomycorrhizal fungal networks and growth of mature Pseudotsuga menziesii.

Birch J, Beiler K, Simard S, Karst J.

Journal of Ecology. 2020 February; 109 (2):806-808

Decline of an ecotone forest: 50 years of demography in the southern boreal forest

Birch JD, Lutz JA, Hogg EH, Simard SW, Pelletier R, LaRoi GH, Karst J.

Ecography. 2019 April; 10 (4):e02698

Tree species with limited geographical ranges show extreme responses to ectomycorrhizas.

Karst J, Burns C, Cale J, Antunes P, Woods MJ, Lamit LJ, Hoeksema JD, Zabinski C, Gehring C, LaFleche M, Rua MA.

Global Ecology and Biogeography. 2018 April; 27 (7):839-848

Stress differentially causes roots of tree seedlings to exude carbon.

Karst J, Gaster J, Wiley E, Landhäusser S.

Tree Physiology. 2016 October; 37

Pec GJ, Karst J, Sywenky A, Cigan PW, Erbilgin N, Simard SS, and Cahill JF, Jr.

PLoS One. 2015 January;

Cigan PW, Karst J, Cahill JF, Jr., Sywenky A, Pec GJ, Erbilgin N

Plant and Soil. 2015 January; 390

Karst J*, Erbilgin N*, Pec GJ, Cigan PW, Najar A, Simard SW, Cahill JF

New Phytologist. 2015 January;

Treu R*, Karst J*, Randall M, Pec GJ, Cigan P, Simard S, Cooke J, Erbilgin N, Cahill JF

Ecology. 2014 January; 95

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