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Occurrence, food habits, and activity patterns of Eurasian otters Lutra lutra in northwestern Greece: implications for research and conservation

  • Alexandros A. Karamanlidis EMAIL logo , Karen Hornigold , Lambros Krambokoukis , Giorgos Papakostas , Konstantinos Stefanidis and Lorenzo Quaglietta
Published/Copyright: October 24, 2013

Abstract

Eurasian otters (Lutra lutra) have experienced dramatic population declines that have resulted in the extirpation of the species from several parts of their original distribution and have led most European countries to initiate systematic monitoring and management efforts. We present the results of a long-term study (2010–2012) of this endangered species in northwestern Greece. Occurrence of otters at the Lakes Zazari and Himaditida was assessed using standard sign surveys, dietary habits were investigated through spraint analysis, and activity patterns were studied using automatic infrared cameras. Otter occurrence was widespread throughout the study area and continuous during the monitoring period and included the presence of a family group. Otter diet included a high proportion of birds, and activity was nocturnal. More systematic monitoring and management efforts and the development of a Species Action Plan are necessary to ensure the survival of the Eurasian otter in Greece.


Corresponding author: Alexandros A. Karamanlidis, ARCTUROS, Civil Society for the Study and Protection and Management of Wildlife and the Natural Environment, Rogoti 3, 54624 Thessaloniki, Greece; and Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway, e-mail:

Acknowledgments

We would like to thank the volunteers of ARCTUROS, J. Delalonde, M. Donadieu, N. McMahon, and E. Nenot who participated in the collection of the field data, D. Bousbouras who helped set up the study, and Prof. Christiane Denys, Dr Géraldine Veron, and two anonymous reviewers for constructive comments on previous versions of the manuscript. This study received logistic support by the nongovernmental organization ARCTUROS and was funded by the natural mineral water AVRA within the framework of the environmental program “Some forests have their own Aura.”

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Received: 2013-6-18
Accepted: 2013-9-23
Published Online: 2013-10-24
Published in Print: 2014-5-1

©2014 by Walter de Gruyter Berlin/Boston

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