Thermo-erosion gullies boost the transition from wet to  mesic tundra vegetation

Perreault, Naïm; Lévesque, Esther; Fortier, Daniel; Lamarque, Laurent J.

doi:https://doi.org/10.5194/bg-13-1237-2016

Articles | Volume 13, issue 4

https://doi.org/10.5194/bg-13-1237-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Freshwater ecosystems in changing permafrost landscapes

https://doi.org/10.5194/bg-13-1237-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 4

Research article

|

01 Mar 2016

Research article |

| 01 Mar 2016

Thermo-erosion gullies boost the transition from wet to mesic tundra vegetation

Naïm Perreault, Esther Lévesque, Daniel Fortier, and Laurent J. Lamarque

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Latest update: 07 Nov 2025

Short summary

We investigated the impacts of climate change and thawing permafrost on vegetation dynamics in Bylot Island, Nunavut. The development of gullies has created new drainage systems within the wetlands, promoting the emergence of mesic plants at the expense of hydrophilic ones within 10 years after disturbance inception. The landscape transformation from wet to mesic plant communities can have substantial consequences on food availability for herbivores and methane emissions of Arctic ecosystems.