La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Common bird population trends in Wallonia, 1990-2009
Auteurs :	Jean-Yves Paquet, Auteur ; Jean-Paul Jacob, Auteur ; Thierry Kinet, Auteur ; Christian Vansteenwegen, Auteur
Type de document :	Article
Dans :	Aves (47(1) MAR 2010)
Article en page(s) :	1-19
Résumé :	Since 1990, common breeding bird populations in Wallonia (Southern Belgium) are surveyed annually by point count sampling. This scheme monitors evolution of an annual population index for about 80 species and reveals declines or increases of populations. Data are available for 3.311 individual sampling points, spread across Wallonia, with some gaps in the coverage, mainly in Ardennes. The general state of Wallonia common avifauna is similar, with a few exceptions, to that of Europe. Farmland bird group contains a majority of declining species, some of them in strong decrease. Since the last analysis covering the period 1990-2005, some species are currently showing a better evolution (Grey Wagtail, Song Thrush, Lesser Whitethroat, Greenfinch), some others show more negative trends (Marsh Tit). Through this long-term program, Wallonia is part of the Pan-European Common Bird Monitoring scheme, gathering information from 22 countries.

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