Repository for : <i>Establishment of reed </i><i>canarygrass</i><i> (</i><i>Phalaris </i><i>arundinacea</i><i>) in the context of floodplain restoration: Impact of companion plant and s</i><i>ow</i><i>ing rate</i><i> </i>

<b>About this project</b>The state of the yellow perch (<i>Perca flavescens</i>) population of the lake Saint Pierre (the largest floodplain in Québec, Canada) is concerning and has been the subject of three moratoria (2012, 2017, 2022). Agriculture intensification in the floodplain in the last century resulted in the loss of important spawning and rearing areas for the yellow perch. Reestablishing perennial vegetation during the spring floods appears essential to ensure the persistence of the population, but the prolonged flooding and fluctuating conditions found in the floodplain make the objective difficult to achieve.In response to this challenge, we evaluate the impact of companion plants (<i>Avena Sativa</i> and <i>Lolium pratense</i>) and sowing rates on the establishment success of <i>Phalaris arundinacea </i>in the floodplain of lake Saint-pierre<i>.</i><b>Description</b>This is the online repository to reproduce the results presented in: Mathieu Vaillancourt, Catherine Čapkun-Huot, Samuel Jean Jacques, Bérenger Bourgeois and Monique Poulin. 2024. Establishment of reed canarygrass (<i>Phalaris</i><i> </i><i>arundinacea</i>) in the context of floodplain restoration: Impact of companion plant and sowing rate.This repository contains all the data and code for the paper.<b>Data</b>The data required for this project are separated in two distinct data sets based on the study site:BF.csvSB.csvBF stands for Baie-du-Febvre, and SB stands for Saint-Barthélémy. Data include :Experimental treatments (species sowed and sowing rate)Weed cover and biomass (separated by species and pooled together)<i>P. arundinacea</i> cover, biomass and mean maximum heightThe complete description of these data sets can be found in Metadata_BF.txt and Metadata_SB.txt<b>Code</b>The analyses and figures are separated in two .R files:Models.RFigures.R<br>