Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/6614

Title: Habitat use and dispersal of the invasive crayfish Procambarus clarkii in ephemeral water bodies of Portugal
Authors: Aquiloni, Laura
Ilhéu, Maria
Gherardi, Francesca
Keywords: Invasive crayfish
dispersal
habitat use
ephemeral water bodies
Procambarus clarkii
southern Europe
Issue Date: 2005
Publisher: Marine and Freshwater Behaviour and Physiology
Citation: Aquiloni L., M. Ilhéu & F. Gherardi 2005. Habitat use and dispersal of the invasive crayfish Procambarus clarkii in ephemeral water bodies of Portugal. Marine and Freshwater Behaviour and Physiology 38(4): 225–236
Abstract: We used radio-telemetry to analyze habitat use and dispersal of the invasive crayfish Procambarus clarkii in the extreme environmental conditions of a temporary river in southern Portugal. The rationale of this study was that an understanding of the properties that make this species a successful invader can be of help for the conservation of freshwater biodiversity. The results showed that: (1) crayfish displaced at a similar rate (ranging 2.5–38md 1) as other European populations; (2)movement was faster at night; (3) crayfish movement had no clear environmental correlates, except for water temperature; (4) peaks of more intense locomotion were intercalated with longer periods of slow or null speed; and (5) P. clarkii did not excavate burrows in the study habitat, but took refuge under boulders and most often occupied complex microhabitats (e.g., vegetated sections of the river). The conclusion was that, notwithstanding their extreme conditions, ephemeral water bodies in southern Europe are highly susceptible to invasion by P. clarkii.
URI: http://hdl.handle.net/10174/6614
Type: article
Appears in Collections:PAO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
ICAAM - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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