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Query: keyword: "Decline"

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1   Chapter: Change index: a measure of change in range size that is independent of changes in survey effort
M. Telfer, in: Changes in ranges: invertebrates on the move. Proceedings of the 13th International Colloquium of the European Invertebrate Survey, Leiden, 2-5 September 2001 (2003), p. 107-110
2   Article: De valkruidmineervlinder Digitivalva arnicella in Nederland: herontdekking en behoud (Lepidoptera: Plutellidae: Acrolepiinae)
E.J. van Nieukerken, J.C. Koster, in: Nederlandse Faunistische Mededelingen, Vol. 9 (1999), p. 15-28