| [landscape influence on the grey herons colonies distribution]. | we analysed the spatial relationship between the location and the size of the 112 grey heron colonies existing in 1994 in the two refuge areas after their decline of the species in the 19th century in france: south brittany (loire-atlantique and morbihan), and eastern france (haute-saône, saône-et-loire, meurthe-et-moselle, vosges). we tested 35 variables describing the hydrographical network surrounding the colonies from a local to a regional scale using a geographic information system. the res ... | 2006 | 16545763 |