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Stéphane Joost

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Publications associées (126)

Prospects and Challenges for the Conservation of Farm Animal Genomic Resources, 2015-2025

Stéphane Joost

Livestock conservation practice is changing rapidly in light of policy, climate change and market demands. The last decade saw a step change in technological and analytical approaches to define, manage and conserve Farm Animal Genomic Resources (FAnGR). Th ...

2015

Very high resolution digital elevation models: are multi-scale derived variables ecologically relevant?

Stéphane Joost, Pascal Vittoz, Kevin Leempoel

Digital Elevation Models (DEMs) are often used in landscape ecology to retrieve elevation or first derivative terrain attributes such as slope or aspect in the context of species distribution modelling. However, DEM-derived variables are scale-dependent an ...

Wiley-Blackwell2015

Relationship between land cover type and Body Mass Index in Geneva

Stéphane Joost, Alain Clémence, Jens Ingensand, Estelle Rochat, Solange Catherine Gaillard, Ivo Widmer, Idris Guessous

Past studies conducted in urban areas analyzed the impact of the presence of green spaces on public health, and highlighted in particular the psychological benefits of interacting with nature. To investigate a supposed relationship between overweight and d ...

IEEE2015

Advances in farm animal genomic resources

Stéphane Joost

Livestock conservation is changing rapidly in light of policy developments, climate change and diversifying market demands. The last decade has seen a step change in technology and analytical approaches available to define and manage Farm Animal Genetic Re ...

2015

Assessing the spatial dependence of adaptive loci in 43 European and Western Asian goat breeds using AFLP markers

Stéphane Joost

Background During the past decades, neutral DNA markers have been extensively employed to study demography, population genetics and structure in livestock, but less interest has been devoted to the evaluation of livestock adaptive potential through the ide ...

Public Library of Science2014

High performance computation of landscape genomic models integrating local indices of spatial association

Stéphane Joost, Sylvie Stucki, Pierre Taberlet

Motivation: The increasing availability of high-throughput datasets requires powerful methods to support the detection of signatures of selection in landscape genomics. Results: We present an integrated approach to study signatures of local adaptation, pro ...

2014

Adaptations to Climate-Mediated Selective Pressures in Sheep

Stéphane Joost, Sylvie Stucki

Following domestication, sheep (Ovis aries) have become essential farmed animals across the world through adaptation to a diverse range of environments and varied production systems. Climate-mediated selective pressure has shaped phenotypic variation and h ...

Oxford Univ Press2014

Spatial variability of soil phosphorus in the Fribourg canton, Switzerland

Stéphane Joost, Nicolas Rossier

Phosphorus (P) is the second essential nutrient for plant growth but can become an ecological and economical concern in case of over-fertilization. Soil P dynamic is influenced by many parameters like soil physical-chemical properties and farming practices ...

Elsevier2014

A comparison of body mass index spatial dependence among adults and children in a Swiss general population

Stéphane Joost, Idris Guessous

Background: Body mass index (BMI) may cluster in space among adults and be spatially dependent. Whether BMI clusters among children and how adults and children BMI clusters are related remains unknown. We aimed to identify and to compare BMI spatial depend ...

Nature Publishing Group2014

A multiscale landscape genomics analytical framework to identify local adaptive variation in the Buckler Mustard

Stéphane Joost, Kevin Leempoel

The question of finding an appropriate scale to study adaptation emerged only recently in landscape genomics, while in landscape ecology its components (extent and resolution or grain) have been addressed in many papers. In fact, in landscape genetics only ...

2013

SamBada in Uganda: landscape genomics study of traditional cattle breeds with a large SNP dataset

Stéphane Joost, Sylvie Stucki

Since its introduction, landscape genomics has developed quickly with the increasing availability of both molecular and topo-climatic data. Current challenges involve processing large numbers of models and disentangling selection from demography. Several m ...

2013

Uncovering the genetic basis of adaptive change: on the intersection of landscape genomics and theoretical population genetics

Séverine Vuilleumier Varisco, Stéphane Joost, Sylvie Stucki, Kevin Leempoel, Jeffrey David Jensen, Ivo Widmer

A workshop recently held at the École Polytechnique Fédérale de Lausanne (EPFL, Switzerland) was dedicated to understanding the genetic basis of adaptive change, taking stock of the different approaches developed in theoretical population genetics and land ...

Wiley-Blackwell2013

Analyse spatiale de la conflictualité, exploration par la régression géographiquement pondérée

François Golay, Stéphane Joost, Elisabeth Salazar

Cette recherche porte sur l’analyse spatiale de 1600 conflits urbains s’étant produits entre 1965 et 2000 dans le territoire correspondant aux limites actuelles de la ville de Québec. L’article propose de renouveler l’analyse de la relation entre la fréque ...

2013

Geocomputational approaches for the analysis of Next-Generation Sequencing (NGS) and multi-scale data in landscape genomics

Stéphane Joost, Sylvie Stucki, Kevin Leempoel

The application of geocomputation to the field of landscape genomics (Manel et al. 2010) permits to carry out demanding computational tasks that recently emerged because of the advent of large Next-Generation Sequencing data. When investigating the genetic ...

Swiss Academy of Sciences2013

Utilization of the Scythe C++ open source library for statistical geocomputation in livestock landscape genomics

Stéphane Joost, Sylvie Stucki

Understanding genetic basis of adaptation is of key importance, especially to insure food supply for present and future populations. Cultivated plants and livestock animals are subjected to high selection pressure due to climate change, increasing food nee ...

Lulu.com2012

Relatedness and scale dependency in very high resolution digital elevation models derivatives

Stéphane Joost, Kevin Leempoel

In the field of landscape genetics, environmental variables are needed to assess the influence of the environment on the spatial distribution of the genetic information of animals or plants. However, measuring variables (e.g. temperature, precipitation) at ...

Lulu.com2012

Hydroweb: an Open Source educational WebGIS platform for the understanding of spatio-temporal variations of meteorological parameters at the watershed scale

Vincent Luyet, Michaël Kalbermatten, Stéphane Joost, Jens Ingensand

GIS is an interdisciplinary technology able to support high-level thinking and spatial reasoning. It allows students to visualize complex real world problems, and supports multiple modes of learning. But GIS remain unused at the primary school level. Indee ...

Lulu.com2012

Promoting collaboration between livestock and wildlife conservation genetics communities

Stéphane Joost, Pierre Taberlet

The collaboration between livestock and wildlife conservation genetics communities has the potential to help promote shared priorities, with respect to emerging technologies and new analytical approaches such as next generation sequencing incorporating ada ...

Springer Netherlands2011

GEOME : A web-based landscape genomics geocomputation platform

Michaël Kalbermatten, Stéphane Joost

Landscape ecologists and resource conservation managers increasingly need geo-referenced data but are not trained to efficiently use Geographical Information Systems together with appropriate geo-environmental information and spatial analysis approaches. I ...

International Society for Photogrammetry and Remote Sensing2010

Divergent selection in trailing- versus leading-edge populations of Biscutella laevigata

Stéphane Joost

Background and Aims: Knowledge on how climate-induced range shifts might affect natural selection is crucial to understand the evolution of species range. Methods: Using historical demographic perspectives gathered from regional-scale phylogeography on the ...

Elsevier2010

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