Abstract
Many freshwater invertebrates rely on vectors for their passive dispersal. A wide array of vectors has already been investigated, but dispersal mediated by aquatic mammals remains largely unknown. Since nutria (Myocastor coypus Molina, 1782) live in a variety of aquatic habitats and frequently move around between these water bodies, they have the opportunity to transport hitch-hiking aquatic invertebrates along with them. We investigated the presence of aquatic invertebrates in their fur to evaluate this hypothesis. This study demonstrates the feasibility of ectozoochory in a broad array of freshwater invertebrates by nutria on a local scale. More than 800 invertebrates of 14 different taxa were retrieved from the fur of 10 nutria specimens, including cladocerans, copepods, ostracods, rotifers, bryozoans, dipterans, nematodes, annelids and collembolans. Many of these freshwater invertebrates could survive at least 30 min in the moist fur of nutria. Therefore, we can state that besides modifying aquatic habitats physically by clearing vegetation or digging, nutria may also alter invertebrate communities by introducing new species or genotypes.
References
Abbas, A., 1991. Feeding strategy of coypu (Myocastor coypu) in central western France. Journal of Zoology 224: 385–401.
Adams, W. H. Jr., 1956. The nutria in coastal Louisisana. Proceedings of the Louisiana Academy of Sciences 19: 28–41.
Aliev, F. F., 1965. Dispersal of nutria in the U.S.S.R. Journal of Mammalogy 46: 101–102.
Beladjal, L. & J. Mertens, 2009. Diaspore dispersal of Anostraca by flying insects. Journal of Crustacean Biology 29: 266–268.
Bilton, D. T., J. R. Freeland & B. Okamura, 2001. Dispersal in freshwater invertebrates: mechanisms and consequences. Annual Review in Ecology and Systematics 32: 159–181.
Bohonak, A. J. & D. G. Jenkins, 2003. Ecological and evolutionary significance of dispersal by freshwater invertebrates. Ecology Letters 6: 783–796.
Bohonak, A. J. & H. H. Whiteman, 1999. Dispersal of the fairy shrimp Branchinecta coloradensis (Anostraca): effects of hydroperiod and salamanders. Limnology and Oceanography 44: 487–493.
Brochet, A. L., M. Gauthier-Clerc, M. Guillemain, H. Fritz, A. Waterkeyn, A. Baltanás & A. J. Green, 2010. Field evidence of dispersal of branchiopods, ostracods and bryozoans by teal (Anas crecca) in the Camargue (southern France). Hydrobiologia 637: 255–261.
Bullock, J. M., R. E. Kenward & R. S. Hail, 2002. Dispersal Ecology. Blackwell publishing, Oxford.
Clobert, J., R. A. Ims & F. Rousset, 2004. Causes, mechanisms and consequences of dispersal. In Hanski, I. & O. E. Gaggiotti (eds), Ecology, Genetics and Evolution of Metapopulations. Elsevier Academic Press, Amsterdam: 307–335.
De Pauw, N. & R. Vannevel, 1990. Macro-invertebraten en waterkwaliteit: determinatiesleutels voor zoetwatermacro-invertebraten en methoden ter bepaling van de waterkwaliteit. Dossiers stichting leefmilieu, vol. 11. Stichting Leefmilieu, Antwerpen.
Flößner, D., 2000. Die Haplopoda und Cladocera (ohne Bosminidae) Mitteleuropas. Backhuys Publishers, Leiden.
Green, A. J. & J. Figuerola, 2005. Recent advances in the study of long distance dispersal of aquatic invertebrates via birds. Diversity and Distributions 11: 149–156.
Havel, J. E. & J. B. Shurin, 2004. Mechanisms, effects and scales of dispersal in freshwater zooplankton. Limnology and Oceanography 49: 1229–1238.
Hulsmans, A., K. Moreau, L. De Meester, B. J. Riddoch & L. Brendonck, 2007. Direct and indirect measures of dispersal in the fairy shrimp Branchipodopsis wolfi indicate a small scale isolation-by-distance pattern. Limnology and Oceanography 52: 676–684.
Jouventin, P., 1996. Le ragondin: Biologie et Méthodes de Limitation des Populations. Editions Acta, Paris.
Lagaude, V., 1975. Le Ragondin en Camargue. Phytoma: défense des cultures, aout-septembre.
LeBlanc, D. J., 1994. Nutria: Prevention and Control of Wildlife Damage. Animal and Plant Health Inspection Service, NC.
Mathevet, R. & J. Lucchesi, 1996. Le piégeage du Ragondin Myocastor coypus en Camargue et ses conséquences potentielles sur la faune sauvage. Faune de Provence (CEEP) 17: 45–47.
Michels, E., K. Cottenie, L. Neys & L. De Meester, 2001. Zooplankton on the move: first results on the quantification of dispersal of zooplankton in a set of interconnected ponds. Hydrobiologia 442: 117–126.
Moore, W. G. & B. F. Faust, 1972. Crayfish as possible agents of dissemination of fairy shrimp into temporary ponds. Ecology 53: 314–316.
Peck, S. B., 1975. Amphipod dispersal in the fur of aquatic mammals. Canadian Field Naturalist 89: 181–182.
Robicheaux, B. L., 1978. Ecology of nutria in a brackish marsh with variably spaced ditches, Rockefeller refuge, Louisiana. MS Thesis, Louisiana State University, LA.
Ruttner-Kolisko, A., 1974. Plankton Rotifers: Biology and Taxonomy (English translation of Die Binnengewisser, Vol. XXVI). Lubrecht & Cramer, Stuttgart.
Stauffacher, M., 1998. Dynamique d’une population de ragondins (Myocastor coypus) dans un marais Camarguais: contribution à la mesure de leur impact sur les roselières. MS Thesis, Université de Neuchâtel, France.
Tachet, H., P. Richoux, M. Bournaud & P. Usseglio-Polatera, 2000. Invertébrés d’eau douce: systématique, biologie, écologie. CNRS Editions, Paris.
Van de Meutter, F., R. Stocks & L. De Meester, 2008. Size-selective dispersal of Daphnia resting eggs by backswimmers (Notonecta maculata). Biology Letters 4: 494–496.
Vandekerckhove, J., S. Declerck, V. Maarten, L. Brendonck, E. Jeppesen, J. M. Conde Porcuna & L. De Meester, 2004. Use of ephippial morphology to assess richness of anomopods: potentials and pitfalls. Journal of Limnology 63: 75–84.
Vanschoenwinkel, B., S. Gielen, M. Seaman & L. Brendonck, 2008a. Any way the wind blows – frequent wind dispersal drives species sorting in ephemeral aquatic communities. Oikos 117: 125–134.
Vanschoenwinkel, B., A. Waterkeyn, T. Vandecaetsbeek, O. Pineau, P. Grillas & L. Brendonck, 2008b. Dispersal of freshwater invertebrates by large terrestrial mammals: a case study with wild boar (Sus scrofa) in Mediterranean wetlands. Freshwater Biology 53: 2264–2273.
Waterkeyn, A., P. Grillas, B. Vanschoenwinkel & L. Brendonck, 2008. Invertebrate community patterns in Mediterranean temporary wetlands along hydroperiod and salinity gradients. Freshwater Biology 53: 1808–1822.
Waterkeyn, A., P. Grillas, E. R. M. De Roeck, L. Boven & L. Brendonck, 2009. Assemblage structure and dynamics of large branchiopods in Mediterranean temporary wetlands: patterns and processes. Freshwater Biology 54: 1256–1270.
Waterkeyn, A., B. Vanschoenwinkel, S. Elsen, M. Anton-Pardo, P. Grillas & L. Brendonck, 2010. Unintentional dispersal of aquatic invertebrates via foot wear and motor vehicles in a Mediterranean wetland area. Aquatic Conservation: Marine and Freshwater Ecosystems 20: 580–587.
Woods, C., L. Contreras, G. Willner-Chapman & H. P. Whidden, 1992. Myocastor coypus. Mammalian Species 398: 1–8.
Acknowledgments
This study was funded by a Ph.D. grant of the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT Vlaanderen) and by a grant from the French National Research Agency (ANRBIODIVERSITE ANR-05-BDIV-014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Handling editor: B. Oertli
Rights and permissions
About this article
Cite this article
Waterkeyn, A., Pineau, O., Grillas, P. et al. Invertebrate dispersal by aquatic mammals: a case study with nutria Myocastor coypus (Rodentia, Mammalia) in Southern France. Hydrobiologia 654, 267–271 (2010). https://doi.org/10.1007/s10750-010-0388-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10750-010-0388-3