Data and R code for: Past flow intermittence duration influences microbial and invertebrate community structure and ecological processes after flow resumption

Résumé fourni par la source

This repository contains the data and R scripts used to investigate how the duration of past drying events (flow intermittence) impacts stream ecological functioning after flow resumption, in two intermittent streams (Orge, ORG; Ormançon, ORM; Northeast France). Twelve monitoring stations (ORG1–ORG7, ORM1–ORM5) were sampled along a flow intermittence gradient, characterized by the number of days of flow cessation (0 to > 200 days), determined from continuous temperature sensor data. The dataset includes measurements of: · Organic matter decomposition (leaf litter and cotton strip mass loss / tensile strength) · Aquatic fungal community structure (sporulation rate, taxonomic richness, Shannon diversity) · Macroinvertebrate community structure (abundance, taxonomic richness, Shannon diversity, shredder proportion) · Primary production (biofilm biomass, chlorophyll-a on PP strips, chlorophyll-a on cotton strips, NDVI) · Watershed, hydromorphological, and physico-chemical characteristics of the 12 stations R scripts (numbered 01 to 08) reproduce all statistical analyses (Wilcoxon-Mann-Whitney U tests, Kruskal-Wallis/Dunn tests, nested model comparisons (constant, linear, quadratic), Spearman correlations, Principal Component Analyses) and figures presented in the associated publication; corresponding outputs are provided in the results/ and figures/ subfolders. Station ORG2 experienced flow cessation during part of the decomposition incubation period; it is excluded from decomposition statistics but still shown, for reference, in the corresponding figures, and retained in all other analyses (see script headers for details).

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.