Distribution and ecological preferences of noble crayfish in the Carpathian Danube basin: biogeographical insights into the species history
Widespread across Europe, the noble crayfish Astacus astacus has experienced many negative ecological and anthropogenic influences, mostly in western and northern Europe. We address the distribution and ecological affinities of this species in the geographical context of the Carpathian Danube basin, an area where these influences were limited and the distribution picture is expectedly a natural one. The main statistical method used to reveal the environmental factors that influence the distribution of noble crayfish was boosted regression trees. Crayfish presence was found to be favoured by a combination of a high percentage of riverbank tree coverage, moderate altitude and slow water velocity, to the detriment of dissolved oxygen. These results reveal the species requirements for river sectors offering the best long-term stability. An eastwards decrease in the probability of occurrence of noble crayfish populations was observed along the Danube tributaries. We hypothesise that this pattern is given by the early colonisation routes originating from southern Danube tributaries, after the Pleistocene glaciations. Including spatiality along with ecological data in the statistical models, this study comes to support the fact that a comprehensive approach can provide a better understanding of a species distribution pattern.
KeywordsAstacus astacus Boosted regression trees Early colonisation Ecological preferences Indigenous crayfish species Riverbanks stability
- Albrecht, H., 1983. Besiedlungsgeschichte und ursprünglich holozane verbreitung der Europäischen Flusskrebse. Spixiana 6: 61–77.Google Scholar
- Băcescu, M. C., 1967. Fauna Republicii Socialiste România, Crustacea, Decapoda (The fauna of Romanian Socialist Republic, Crustacea, Decapoda). Academic Publishing House, Bucharest. (in Romanian).Google Scholar
- Council of Europe, 1979. Convention on the Conservation of European Wildlife and Natural Habitats. Bern.Google Scholar
- Council of Europe, 1992. Council Directive 92/43/EEC of 21 May 1992 on the Conservation of Natural Habitats and of Wild Fauna and Flora. European Commission, Brussels.Google Scholar
- Diéguez-Uribeondo, J., 2006. Pathogens, Parasites and Ectocommensals. In Souty-Grosset, C., D. M. Holdich, P. Y. Noël, J. D. Reynolds & P. Haffner (eds), Atlas of Crayfish in Europe. Patrimoines Naturels 64, Muséum National d’Histoire Naturelle, Paris: 131–149.Google Scholar
- Elith, J., C. H. Graham, R. P. Anderson, M. Dudik, S. Ferrier, A. Guisan, R. J. Hijmans, F. Huettmann, J. R. Leathwick, A. Lehmann, J. Li, L. G. Lohmann, B. A. Loiselle, G. Manion, C. Moritz, M. Nakamura, Y. Nakazawa, J. M. Overton, A. T. Peterson, S. J. Phillips, K. Richardson, R. Scachetti-Pereira, R. E. Schapire, J. Soberon, S. Williams, M. S. Wisz & N. E. Zimmermann, 2006. Novel methods improve prediction of species’ distributions from occurrence data. Ecography 29: 129–151.CrossRefGoogle Scholar
- Filipová, L., A. Petrusek, K. Matasová, C. Delaunay & F. Grandjean, 2013. Prevalence of the crayfish plague pathogen Aphanomyces astaci in populations of the signal crayfish Pacifastacus leniusculus in France: evaluating the threat to native crayfish. PLoS ONE 8: e70157.PubMedCentralPubMedCrossRefGoogle Scholar
- Gross, R., S. Palm, K. Kõiv, T. Prestegaard, J. Jussila, T. Paaver, J. Geist, H. Kokko, A. Karjalainen & L. Edsman, 2013. Microsatellite markers reveal clear geographic structuring among threatened noble crayfish (Astacus astacus) populations in Northern and Central Europe. Conservation Genetics 15: 809–821.CrossRefGoogle Scholar
- Hewitt, G. M., 1996. Some genetic consequences of ice ages, and their role in divergence and speciation. Biological Journal of the Linnean Society 58: 247–276.Google Scholar
- Hijmans, R. J., S. Phillips, J. Leathwick & J. Elith, 2012. R package “dismo” version 0.7-23. http://cran.r-project.org/web/packages/dismo.
- Holdich, D. M., P. Haffner & P. Y. Noël, 2006. Species files. In Souty-Grosset, C., D. M. Holdich, P. Y. Noël, J. D. Reynolds & P. Haffner (eds), Atlas of crayfish in Europe. Patrimoines Naturels 64, Muséum National d’Histoire Naturelle, Paris: 66–71.Google Scholar
- IUCN, 2013. IUCN Red List of Threatened Species. Version 2013.1. Available at: www.iucnredlist.org.
- Klobučar, G. I. V., M. Podnar, M. Jelić, D. Franjević, M. Faller, A. Štambuk, S. Gottstein, V. Simić & I. Maguire, 2013. Role of the Dinaric Karst (western Balkans) in shaping the phylogeographic structure of the threatened crayfish Austropotamobius torrentium. Freshwater Biology 58: 1089–1105.CrossRefGoogle Scholar
- OIE, 2009. Manual of diagnostic tests for aquatic animals. Chapter 2.2.1. Crayfish plague (Aphanomyces astaci). http://www.oie.int.
- Pârvulescu, L., O. Pacioglu & C. Hamchevici, 2011. The assessment of the habitat and water quality requirements of the stone crayfish (Austropotamobius torrentium) and noble crayfish (Astacus astacus) species in the rivers from the Anina Mountains (SW Romania). Knowledge and Management of Aquatic Ecosystems 401: 03.CrossRefGoogle Scholar
- Pârvulescu, L., A. Schrimpf, E. Kozubíková, S. Cabanillas Resino, T. Vrålstad, A. Petrusek & R. Schulz, 2012. Invasive crayfish and crayfish plague on the move: first detection of the plague agent Aphanomyces astaci in the Romanian Danube. Diseases of Aquatic Organisms 98: 85–94.PubMedCrossRefGoogle Scholar
- R Development Core Team, 2005. R: a language and environment for statistical computing, reference index version 2.14.0. R Foundation for Statistical Computing, Vienna, Austria. http://www.R-project.org.
- Schrimpf, A., H. K. Schulz, K. Theissinger, L. Pârvulescu & R. Schulz, 2011. The first large-scale genetic analysis of the vulnerable noble crayfish Astacus astacus reveals low haplotype diversity of Central European populations. Knowledge and Management of Aquatic Ecosystems 401: 35.CrossRefGoogle Scholar
- Viljamaa-Dirks, S., S. Heinikainen, M. Nieminen, P. Vennerström & S. Pelkonen, 2011. Persistent infection by crayfish plague Aphanomyces astaci in a noble crayfish population—a case report. Bulletin of the European Association of Fish Pathologists 31(5): 182–188.Google Scholar