Colonization of freshwater habitats by an introduced crayfish, Procambarus clarkii, in Southwest Iberian Peninsula
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The introduction of some crustacean species has produced alterations of freshwater environments and declines of native species worldwide. The red swamp crayfish, Procambarus clarkii Girard, was introduced in the Southwest Iberian Peninsula in the 1970’s, producing severe impacts on rice agriculture and on native biota such as macrophytes, gastropods, native crayfish and amphibians. We studied the distribution of P. clarkii in two areas of SW Iberian Peninsula: the Sado River basin (SW Portugal), an area colonized by this species around 1990, and the Parque Natural del Entorno de Doñana (SW Spain), colonized soon after its introduction in the Iberian Peninsula, in the 1970’s. Our main goal was to determine which factors limit crayfish distribution, which could help to identify the most effective management practices to contain its spread. Procambarus clarkii was found in most types of water bodies, including small and shallow ones. Distance to a crayfish source was the single predictor variable explaining crayfish occurrence in most types of habitats and in both areas. The only exception was for the Sado permanent stream points, where crayfish presence was negatively affected by an interaction between elevation and flow velocity. Other habitat characteristics have apparently little or no importance for its successful colonization. Moreover, this study indicated that overland dispersal is apparently a frequent phenomenon in this species. Our findings can be used to determine which habitats are most likely to be colonized by the crayfish and to develop practical measures which may limit its spread and minimize its impacts.
KeywordsDistribution Ecological requirements Exotic species Freshwater crayfish Mediterranean Procambarus clarkii
We thank M. Tejedo for precious help in the visits to Doñana, A.Sumares, P. Andrade, S. Amaral and S. Pascoal for their help in the field work, and R. Braz for the map production. This research was supported by a FCT and FSE grant (SFRH/BD/6286/2001), by Project PNAT/1999/BIA/15039/C of FCT and ICN, and by the European Community-Access to Research Infrastructure Action of the Improving Human Potential Programme in Doñana Biological Station (Ecodoca).
- Bravo, M. A., C. M. Duarte & C. Montes, 1994. Environmental factors controlling the life history of Procambarus clarkii (Decapoda, Cambaridae) in a temporary marsh of the Doñana National Park (SW Spain). Internationale Vereinigung fuer Theoretische und Angewandte Limnologie, Verhandlungen 25: 2450–2453.Google Scholar
- Correia, A. M., 1995. Population dynamics of Procambarus clarkii (Crustacea: Decapoda) in Portugal. Freshwater Crayfish 8: 276–290.Google Scholar
- Correia, A. M., 2003. Food choice by the introduced crayfish Procambarus clarkii. Annales Zoologici Fennici 40: 517–528.Google Scholar
- Cruz, M. J., P. Andrade, S. Pascoal & R. Rebelo, 2004. Colonização anual de charcos temporários pelo Lagostim-vermelho-americano, Procambarus clarkii. Revista de Biologia 22: 79–90.Google Scholar
- Gherardi, F. & S. Barbaresi, 2000. Invasive crayfish: activity patterns of Procambarus clarkii in the rice fields of Lower Guadalquivir (Spain). Archiv fur Hydrobiologie 150: 153–168.Google Scholar
- Gherardi, F., S. Barbaresi & G. Salvi, 2000. Spatial and temporal patterns in the movement of Procambarus clarkii, an invasive crayfish. Aquatic Sciences 62: 179–193.Google Scholar
- Harper, D. M., A. C. Smart, S. Coley, S. Schmitz, A. -C. G. Beauregard, R. North, C. Adams, P. Obade & M. Kamau, 2002. Distribution and abundance of the Louisiana red swamp crayfish Procambarus clarkii Girard at Lake Naivasha, Kenya, between 1987 and 1999. Hydrobiologia 488: 143–151.Google Scholar
- Habsburgo-Lorena, A. S., 1983. Socioeconomic aspects of the crawfish industry in Spain. Freshwater Crayfish 5: 552–554.Google Scholar
- Ramos, M. A. & T. M. Pereira, 1981. Um novo Astacidae para a fauna portuguesa: Procambarus clarkii (Girard, 1852). Boletim Instituto Nacional Investigação e Pescas 6: 37–47.Google Scholar
- Sala, O. E., F. S. Chapin III, J. J. Armesto, E. Berlow, J. Bloomfield, R. Dirzo, E. Huber-Sanwald, L. F. Huenneke, R. B. Jackson, A. Kinzig, R. Leemans, D. M. Lodge, H. A. Mooney, M. Oesterheld, N. LeRoy Poff, M. T. Sykes, B. H. Walker, M. Walker & D. H. Wall, 2000. Global Biodiversity Scenarios for the Year 2100. Science 287: 1770–1774.PubMedCrossRefGoogle Scholar
- Sakai, A. K., F. W. Allendorf, J. S. Holt, D. M. Lodge, J. Molofsky, K. A. With, S. Baughman, R. J. Cabin, J. E. Cohen, N. C. Ellstrand, D. E. Mccauley, P. O’Neil, I. E. Parker, J. N. Thompson & S. G. Weller, 2001. The population biology of invasive species. Annual Reviews in Ecology and Systematics 32: 305–332.CrossRefGoogle Scholar