Surveying and monitoring distribution and population trends of the Eurasian otter (Lutra lutra) : guidelines and evaluation of the standard method for surveys as recommended by the European section…
By A. Madsen, M. Kučerová, A. Trindade, J. Romanowski, K. Roche, A. Krekemeyer, J. Ruiz-Olmo, D. Jefferies, J. Jahrl, D. Dolch and 2 more. 2000
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