Plant reintroduction in restored peatlands: 80% successfully transferred – Does the remaining 20% matter?

Global Ecology and Conservation

Mélina Guêné-Nanchen¹  Sandrine Hugron²  Line Rochefort³  Marie-Claire LeBlanc³  Noémie Roux³ 

[1] Peatland Ecology Research Group, Centre for Northern Studies, Plant Science Department, Université Laval, 2425 rue de l’Agriculture, Québec, G1V 0A6, Canada;Corresponding author. Peatland Ecology Research Group, Centre for Northern Studies, Plant Science Department, Université Laval, 2425 rue de l’Agriculture, Québec, G1V 0A6, Canada.;Peatland Ecology Research Group, Centre for Northern Studies, Plant Science Department, Université Laval, 2425 rue de l’Agriculture, Québec, G1V 0A6, Canada;

关键词: Bogs;    Ecological restoration;    Moss layer transfer technique;    Diaspore transfer;    Plant material transfer;    Reintroduction failures;   

DOI  :  

来源: DOAJ

【 摘 要 】

In ecological restoration, especially in projects aiming at introducing a diverse plant community, species that do not establish are rarely reported., Yet, knowledge gained from identifying and understanding the reasons why species did not establish is useful to improve restoration techniques. In this paper, we used Sphagnum dominated peatlands restored with the Moss Layer Transfer Technique (MLTT) as a typical example of restored ecosystems for which information about species that does not establish is lacking. By comparing the plant species pools of 22 pairs of donor/restored Sphagnum peatlands (including 17 sites restored for more than 10 years), we calculated that the proportion of successfully introduced plant species (transfer rate) was 82 ± 9%, amongst the highest transfer rate when compared to other restoration projects. Only five vascular plant species were classified as recalcitrant – species present in the donor site but absent from the restored sites: Carex trisperma, Cypripedium acaule, Ilex mucronata, Maianthemum trifolium and Rubus chamaemorus. Explanations about the filters impeding establishment were mainly based on the autoecology of the species. Depending on restoration goals (e.g. return of edible berries or orchid diversity) we recommend the specific reintroduction of recalcitrant species after the MLTT.

【 授权许可】

Unknown