Distribution and abundance of the adder - Vipera berus Linnaeus, 1758 in North Rhine-Westphalia Verbreitung und Bestandssituation der Kreuzotter-Vipera b berus Linnaeus, 1758 in Nordrhein-Westfalen

Geiger, A.

Mertensiella 1 Dezember; 15: 99-107

2004


Accession: 038152429

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Abstract
The distribution of the adder in North Rhine-Westphalia has been mapped since the end of the nineteenth century by WESTHOFF 1891 and 1893 in Westphalia and later by GI.ANDT 1971 in the North Rhine district of this state. Based on the old data combined with the actual mapping of the herpetofauna of North Rhine-Westphalia (1990-2000) the recent distribution of the adder is presented. Further details on abundance, habitat and conservation status in this state are shown.