Sprainting sites and feeding habits of the otter (Lutra lutra) in the Douro River estuary, Portugal

Referencias bibliográficas

• Azevedo I. C., Duarte P. M. & Bordalo A. A. 2008. Understanding spatial and temporal dynamics of key environmental characteristics in a mesotidal Atlantic estuary (Douro, NW Portugal). Estuarine, Coastal and Shelf Science, 76: 620-633.
• Beja P. R. 1991. Diet of otters (Lutra lutra) in closely associated freshwater, brackish and marine habitats in south-west Portugal. Journal of Zoology, 225: 141-152.
• Blanco-Garrido F., Prenda J. & Narváez M. 2008. Eurasian otter (Lutra lutra) diet and prey selection in Mediterranean streams invaded by centrarchid fishes. Biological Invasions, 10: 641-648.
• Blanco-Garrido F., Márquez-Ruiz C. & Herrera-Grao T. 2009. Variación estacional de la dieta de la nutria (Lutra lutra) y la intensidad de marcaje en un estuario atlántico: el Paraje Natural Marismas del Odiel (Huelva). Abstracts IX Jornadas de la Sociedad Española para la Conservación y el Estudio de los Mamíferos (SECEM). Bilbao, Spain.
• Cerqueira, L. I. M. 2005. Distribuição e ecologia alimentar da Lontra (Lutra lutra) em dois sistemas costeiros em Portugal. Mestrado em Ciencias do Ambiente. Departamento de Biologia, Universidade do Minho, Braga, Portugal.
• Clavero, M., Prenda, J., & Delibes, M. 2004. Influence of spatial heterogeneity on coastal otter (Lutra lutra) prey consumption. Annales Zoologici Fennici, 41: 551-561.
• Clavero M., Prenda J. & Delibes M. 2006. Seasonal use of coastal resources by otters: Comparing sandy and rocky stretches. Estuarine, Coastal and Shelf Science, 66: 387-394.
• Ferreira M., Antunes P., Gil O., Vale C. & Reis-Henriques M. A. 2004. Organochlorine contaminants in flounder (Platichthys flesus) and mullet (Mugil cephalus) from Douro estuary, and their use as sentinel species for environmental monitoring. Aquatic Toxicology, 69: 347-357.
• Freitas D., Gomes J., Luis T. S., Madruga L., Marques C., Baptista G., Rosalino L. M, Antunes P., Santos R. & Santos-Reis M. 2007. Otters and fish farms in the Sado estuary: ecological and socio-economic basis of a conflict. Hydrobiologia, 587: 51-62.
• Fusillo R., Marcelli M. & Boitani L. 2007. Survey of an otter Lutra lutra population in Southern Italy: site occupancy and influence of sampling season on species detection. Acta Theriologica, 52: 251-260.
• Gomes N.H.F. 1998. Distribuição e ecologia trofica da lontra (Lutra lutra) na Ria de Aveiro. Mestrado em Ecologia Aplicada. Faculdade de Ciencias da Universidade do Porto, Porto, Portugal.
• Heggberget T. M. 1993. Marine-feeding otters (Lutra lutra) in Norway: seasonal variation in prey and reproductive timing. Journal of the Marine Biological Association of the United Kingdom, 73: 297-312.
• Kruuk H. 1995. Wild Otters: Predation and Populations. Oxford University Press, Oxford. 304 pp.
• Kruuk, H. & Moorhouse, A. 1990. Seasonal and spatial differences in food selection by otters (Lutra lutra) in Shetland. Journal of Zoology, 221: 621-637.
• Macdonald S. M. & Mason C. F. 1980. Observation on the marking behaviour of a coastal population of otters. Acta Theriologica, 25: 245-253.
• Mason C. F. & Macdonald S. M. 1986. Otters. Ecology and Conservation. Cambridge University Press, London. 236 pp.
• McMahon J. & McCafferty D. J. 2006. Distribution and diet of otters (Lutra lutra) in marine areas of Loch Lomond and The Trossachs National Park, Scotland, UK. Lutra, 49: 29-36.
• Murphy K. P. & Fairley J. S. (1985). Food and sprainting places of otters on the west coast of Ireland. The Irish Naturalists’ Journal, 21: 477-479.
• Parry G. S., Burton S., Cox B. & Forman D. W. 2011. Diet of coastal foraging Eurasian otters (Lutra lutra L.) in Pembrokeshire south-west Wales. European Journal of Wildlife Research, 57: 485-494.
• Romanowski J., Brzezinski M. & Cygan J. P. 1996. Notes on the technique of the otter field survey. Acta Theriologica, 41: 199-204.
• Trindade A. & Farinha N. 1998. Otter distribution in Portugal. Pp. 356-360. In: R. Dulfer, J. Conroy, J. Nel & A. C. Gutleb, (eds.). Otter conservation - An example for a sustainable use of wetlands. Proceedings VIIth. international otter colloquium, Trebon (published 2002).
• Vieira M. E. & Bordalo A. A. 2000. The Douro estuary (Portugal): a mesotidal salt wedge. Oceanologica Acta, 23: 585-594.