Research topics

My research program aims to develop tools and methods for characterizing vegetation in controlled environments (e. g. agricultural environments) and natural environments (e. g. forests, riparian ecosystems, wildlife habitats), using remote sensing and geographic information systems, in a context of conservation and climate change.  


Current projects

1. Spatial characterization of ecological services provided by ecosystems (e.g. wetlands) at the watershed scale, in a context of climate change

2. Development of “unmanned aircraft-sensor” systems adapted to the characterization of agricultural and forest environments as well as wildlife inventory

3. characterization of ecological networks and corridors (spatial scales, geomatics methods, wildlife passages)

4. Development of spatial indicators for monitoring the ecological integrity of protected areas (e.g. Quebec national parks)  



  • Chrétien, L.-P., Théau, J., Ménard, P. (2016). Visible and thermal infrared remote sensing for the detection of white-tailed deer using an unmanned aerial system. Wildlife Society Bulletin, 40(1) pp. 181 – 191.


  • He, J., Moffette, F., Fournier, R., Revéret, J.-P., Théau, J., Dupras, J., Boyer, J.-P., Varin, M. (2015). Meta-analysis for the transfer of economic benefits of ecosystem services provided by wetlands within two watersheds in Quebec, Canada. Wetlands Ecology and Management, 23 ( 4 ) pp. 707 – 725.
  • Théau, J., Bernier A., Fournier, R. (2015) An evaluation framework based on sustainability-related indicators for the comparison of conceptual approaches for ecological networks. Ecological indicators 52: 444-457. pdf


  • Shahbazi, M., Théau, J. et P. Ménard (2014) Recent applications of unmanned aerial imagery in natural resource management. GIScience & Remote Sensing 51 (DOI:10.1080/15481603.2014.926650).


  • Bernier, A. et J. Théau (2013) Modélisation de réseaux écologiques et impacts des choix méthodologiques sur leur configuration spatiale: analyse de cas en Estrie, Québec. Vertigo 13 (2) [en ligne] : url :


  • Théau, J., Sankey, T.T. and K.T. Weber (2010) Multi-sensor analyses of vegetation indices in a semi-arid environment. GIScience and Remote Sensing, Vol. 47, No. 2, pp. 260-275. DOI: 10.2747/1548-1603.47.2.260. pdf Weber, K. T., Sankey, T. T. and
  • Théau, J. (2010) Local-scale validation of the surface observation gridding system with in situ weather observations in a semi-arid environment. International Journal of Remote Sensing. Vol. 31, No. 16, p. 4411-4422. pdf


  • Théau J. (2008). Change Detection. Encyclopedia of Geographical Sciences. Ed: Shashi Shekhar and Hui Xiong, Springer, New-York, 77-84. pdf
  • Weber, K., Théau J. et K. Serr (2008). Effect of coregistration error on patchy target detection using high-resolution imagery. Remote Sensing of Environment 112: 845-850.


  • Théau, J., Peddle, D.R. and Duguay, C.R. (2005). Mapping lichen in a caribou habitat of Northern Quebec, Canada, using an enhancement-classification method and spectral mixture analysis. Remote Sensing of Environment, 94, p. 232-243. pdf


  • Théau J. et C. Duguay (2004). « Mapping Lichen habitat Change inside the Summer Range of the George River Caribou Herd (Québec-Labrador, Canada) using Landsat Imagery (1976-1998) ». Rangifer 24, p. 31-50.
  • Théau, J. et C.R. Duguay (2004). Lichen mapping in the summer range of the George River caribou herd using Landsat TM imagery. Canadian Journal of Remote Sensing, Vol. 30, No. 6, p.867-881. pdf


  • Théau, J. et J. Ferron (2001) Influence de paramètres climatiques sur les patrons d’activité saisonniers et journaliers du lièvre d’Amérique, Lepus americanus, en semi-liberté. Canadian Field-Naturalist 115(1): 43-51. pdf


  • Théau J. et J. Ferron (2000) Influence des conditions climatiques sur le comportement du Lièvre d’Amérique (Lepus americanus) en semi-liberté. Canadian Journal of Zoology 78 : 1126-1136. pdf