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The bicoloured shrew occurs scattered all over Flanders, but the number of occupied squares is low (27 %). Based on the number of 5 x 5 km-squares with barn owl pellets searched and bicoloured shrews found,the bicoloured shrew is especially rare in the province of Antwerpen, a slight bit more common in Limburg,Oost-Vlaanderen and Vlaams-Brabant, and most common (but still not very) in West-Vlaanderen. In West-Vlaanderen, especially the East Coast and the adjacent woodlands around Brugge have a high occupation. The species is remarkably absent in the south of the province of Oost-Vlaanderen and in large parts of Antwerpen and the eastern part of Vlaams-Brabant. Looking at the percentage of squares with barn owl pellets searched and bicoloured shrews present, there is a decline over time in nearly all provinces (in total 36 % occupied in 1964- 70), especially in Oost-Vlaanderen. A large part of the old data in Oost-Vlaanderen though originate from the Waasland regio,which was not studied now, so the decline may be less severe than seen here. In the province of Antwerpen the species seems to have disappeared from the Lier regio. Only in Limburg an increase in the percentage of occupied squares occurred. Otherwise there were no large changes in distribution. In both periods, the percentage of bicoloured shrews found in barn owl pellets was very low.
This website is the online version of Verkem, S., De Maeseneer, J. Vandendriessche, B., Verbeylen, G. & Yskout, S. (2003). Zoogdieren in Vlaanderen. Ecologie en verspreiding van 1987 tot 2002. Natuurpunt Studie & JNM-Zoogdierenwerkgroep, Mechelen & Gent, België
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