New paper: 7000-year human legacy of elevation-dependent European fire regimes

Paper Highlights: • 18 southern European charcoal records document 16,000 years of fire regime changes. • Since the Neolithic, land uses have artificially maintained high fire frequencies. • Human-induced decreases in forest cover led to a reduction in the biomass burned. • Human-modified landscapes affected ecological processes more meaningly than expected. Citation: Vannière B., Blarquez […]

PhD opportunity in peatland ecology

The biogeography ( and paleogeography ( labs at Université de Montréal are seeking a Ph.D. student to work on the impact of fire and other disturbances on long-term peat accumulation in northern peatlands using a mix of paleoecological and modeling approaches. The candidate will need to have a strong background in peatland ecology, paleoecology or […]

ABC platform

We are pleased to share the design of a coring platform we developed with Julie Aleman. The criteria we used for the conception were affordability, the ability to find materials for the construction worldwide, high stability and simplicity. The platform was primarily designed for manipulating Kajak-Brinkhurst, Livingstone or Russian corers, and we were able to recover more than […]

paleofire 1.1.5

A new version of the R package paleofire is available on CRAN at This release includes a new vignette on the basic usage of paleofire for reconstructing regional charcoal composite curves and a new function to easily export GCD sites to Google Earth .kml file. The australasian sites above have been exported using:    

New paper: paleofire: an R package to analyse sedimentary charcoal records from the Global Charcoal Database to reconstruct past biomass burning

I am  pleased to announce the publication of a new study in Computers and Geosciences with Boris Vannière, Jennifer Marlon, Anne-Laure Daniau, Mitch Power, Simon Brewer and Patrick Bartlein. The paper is freely available online here until October 19 and soon as a package vignette for paleofire.   Paper highlights: • We present the open source paleofire R package […]

paleofire package highlighted in the PAGES Magazine

The paleofire package has been highlighted in the April issue of the PAGES Magazine : Vannière B., O. Blarquez, J. Marlon, A.-L. Daniau and M. Power. 2014. Multi-Scale Analyses of fire-climate- Vegetation Interactions on Millennial Scales. PAGES Magazine, Volume 22, Page 40. The article presents the workshop of the Global Paleofire Working Group held in […]

New paper: Disentangling the trajectories of alpha, beta and gamma plant diversity of North American boreal ecoregions since 15,500 years

I am  pleased to announce the publication of a new study in Frontiers in Ecology and Evolution with Christopher Carcaillet, Thibaut Frejaville and Yves Bergeron. The paper is freely available online here. Assessment of biodiversity in a changing world is a key issue and studies on the processes and factors influencing its history at relevant […]

Introducing the paleofire package

The new R package, paleofire, has been released on CRAN. The package is dedicated to the analysis and synthesis of charcoal series contained in the Global Charcoal Database (GCD) to reconstruct past biomass burning. paleofire is an initiative of the Global Paleofire Working Group core team, whose aim is to encourage the use of sedimentary […]

Calculate pixel values at increasing radius

ndvi_classes.m function could be used to calculate the number and percentage of pixels at increasing radius from a lake following certain criterion’s. The function was originally developed to count the number of pixels falling in specific NDVI classes around lakes but may be useful for different proxies and situations. The function use georeferenced tiff images as […]