On September 01 2019 by Simon Dellicour
Our new article on landscape phylogeography has been accepted for publication in Molecular Ecology. In this study, we applied different post-hoc landscape phylogeographic approaches to analyse a new and comprehensive data set of viral genomes to elucidate the dispersal history and dynamics of rabies virus (RABV) in Iran.
Recent years have seen the extensive use of phylogeographic approaches to unveil the dispersal history of virus epidemics. Spatially-explicit reconstructions of viral spread represent valuable sources of lineage movement data that can be exploited to investigate the impact of underlying environmental layers on the dispersal of pathogens. Read more...
On March 01 2019 by Marius Gilbert
Since a few years, we have been involved in the development of method to measure the rate of spread of biolgical invasions. More specifically, we published a new method to quantify the local velocity of the front wave of an invasion, and applied this method to measure the rate of spread of several bluetongue epidemics.
Recently, the sampe method was applied to describe the invasion by Aedes aegypti and Aedes albopictus in US and in Europe in a large collaborative study lead by Moritz Kraemer, at the university of Oxford. Read more...
On March 01 2019 by Simon Dellicour
Our article titled “Landscape genetic analyses of Cervus elaphus and Sus scrofa: comparative study and analytical developments” has recently been published in Heredity. In this study, we describe and use a landscape genetic workflow to compare spatial patterns of genetic variability and the impact of environmental factors on genetic differentiation.
Red deer and wild boar are two major game species whose populations are managed and live in areas impacted by human activities. Read more...
On October 28 2018 by Marius Gilbert
In collaboration with the Food and Agriculture Organization of the UN (FAO) and other collaborators, we are publishing this week in Nature Scientific Data the result of several years of research to improve global data on the distribution of livestock (cattle, buffaloes, horses, sheep, goats, pigs, chickens and ducks).
These new data sets provide estimates of the density (individuals / km2) of these species at a spatial resolution of 5 minutes of arc (approximately 10 km at the equator) over the globe. Read more...
On September 05 2018 by Marius Gilbert
A 2-year post-doc position starting immediately is available to work on global spatial and temporal distribution models of livestock. Description The global livestock sector faces major challenges in terms of the sustainability of its development due to the considerable externalities that livestock production has on society, health and the environment. High-resolution maps of livestock are essential tools to assess the sustainability of livestock production systems. Maps allow, for example, the estimation of potential impacts of various hazards that have strong spatial dimensions such as the release of pollutants. Read more...
On February 12 2018 by Marius Gilbert
A 2-year post-doc position is opened to work on spatial epidemics and phylogeographic models applied to Bluetongue. Description Several factors can contribute to the spread of animal diseases their relative effect can be difficult to disentangle. In this project, we aim to compare spatial epidemic models and spatial phylogeographic models in their capacity to quantify the effect of different factors on patterns of spread, using past bluetongue epidemics as study system. Read more...
On January 08 2018 by Marius Gilbert
Two papers were recently published on this topic from different perspectives.
In the paper Intensifying poultry production systems and the emergence of avian influenza in China: a ‘One Health/Ecohealth’ epitome, we discussed different sets of ecological and epidemiological pressures that could have lead to the emergence of avian influenza in Asia.
In the paper Could Changes in the Agricultural Landscape of Northeastern China Have Influenced the Long-Distance Transmission of Highly Pathogenic Avian Influenza H5Nx Viruses? Read more...
On September 29 2017 by Marius Gilbert
In this paper, published in Science today, we conducted a first global assessment of different intervention policies that could help limit the projected increase of antimicrobial use in food production. The paper is lead by Thomas Van Boeckel a former member of the lab, now at ETH Zurich, and was carried out in collaboration with researchers from FAO, Princeton university and CDDEP.
The paper reports that worldwide antimicrobial consumption is expected to rise by a staggering 52% and reach 200,000 tonnes in 2030 barring any actions. Read more...
On July 01 2017 by Marius Gilbert
Three members of the lab attended the Spatial Statistics 2017 conference in July, with talks on the larges-scale tranbsferability of H5Nx models (J. Artois), on farm distribution models (C. Chaiban) and on the latest developments of the gridded livestock of the world database (M. Gilbert).
On February 02 2017 by Marius Gilbert, Jean Artois, Madhur Dhingra & Catherine Linard
(Updated 2nd Feb. 2017) We evaluated the predictive capacity of our global H5N1 suitability model published a few month ago in e-life, and based on HPAI H5N1 and H5Nx records of years 2006-2015 in its capacity to predict the current wave of HPAI H5N8 across Europe.
On February 1st, we extracted all the winter 2016:2017 H5N8 HPAI cases in domestic poultry (i.e. excluding wild bird cases) from the Empres-I database. In the figure below, the cases are distributed over the HPAI H5N1 model (left) and HPAI H5Nx clade 2. Read more...