Create your own conference schedule! Click here for full instructions

Abstract Detail

Bryological and Lichenological Section/ABLS

Castonguay, Joëlle [1], Fenton, Nicole [2], Bergeron, Yves [3].

Dynamic bryophyte communities in the spruce moss Boreal forest: Role of residual patches logging.

In the boreal forest, fires leave intact patches within the burned matrix, and recent developments in variable retention sylviculture have been inspired by this pattern. While boreal plant diversity is dominated by bryophytes, the role of retention in the dynamics of boreal bryophytes communities remains unknown. This study will determine the factors that influence the capacity of retention patches after harvest to fill ecological functions (i.e. “lifeboating” and propagule source). We hypothesize that the ability of residual forest patches to fulfill these functions will be positively correlated with the size of the patches and the age of the original forest, and will be negatively correlated with time since last disturbance. In this poster, we will discuss the first function “lifeboat” for the macroscopic species of moss Pleurozium schreberi, as an indicator for other species. To determine the factors that influence the dynamics of P. schreberi, P. schreberi cover was measured in plots of 50m², with 3 quadrats of 1m². In patch of various size and age plots were places in the center, on the edge, and at 10 and 20m from the patch. Various environmental and structural data of the forest were measured (eg. temperature, relative humidity, stand age and density). Preliminary results show that the recovery of P. schreberi cover was influenced by time since last disturbance and distance to the residual patches, suggesting that P. schreberi cover is resilient to disturbance. To conclude, all the results (so all the others species) of this study will determine the roles of retention patches in the dynamics of bryophytes communities and the factors influencing this dynamic.

Log in to add this item to your schedule

1 - Université du Québec en Abitibi-Témiscamingue, Biologie, 445 boul. de l'Université, Rouyn-Noranda, QC, J9X 5E4, Canada
2 - Universite du Quebec en Abitibi-Temiscamingue, Institut of Forest Research, 445 Boul de l'Universite, Rouyn-Noranda, Quebec, J9Y 1E8, Canada
3 - UQAT, Chaire AFD, 445 Boul. De L'Université, Rouyn-Noranda, QC, J9X 5E4, Canada

none specified

Presentation Type: Poster:Posters for Sections
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PBR003
Abstract ID:215
Candidate for Awards:Ian and Syvia Taylor Award

Copyright © 2000-2015, Botanical Society of America. All rights reserved