Abstract
The Mute Swan (Cygnus olor) is a protected species whose population has shown a dramatic demographic expansion over the last decades in France. Today, Mute Swans are suspected of causing damages to wetlands, partly through their territorial behaviour towards other waterbirds. The behaviour of Mute Swan pairs and the distribution of other waterbirds was monitored over 84 fishponds in the Dombes, Eastern France, from April to July 2008. Interspecific aggressive behaviours by Mute Swan pairs were not detected during behavioural observations, and no negative impact of swan pair presence was demonstrated on waterbird distribution. Waterbirds were more abundant on fishponds where Mute Swan pairs were present, maybe due to the flocking of waterbirds where Mute Swans were established owing to shared habitat preferences. Indeed, the waterbirds whose presence was the most closely correlated to that of Mute Swan pairs were Coot (Fulica atra), Common Pochard (Aythya ferina) and Red-Crested Pochard (Netta rufina), all foraging on deep macrophyte beds as do the swans. All these species, including swans, may therefore be attracted to the same fishponds without massive interspecific competition occurring, due to abundant submerged aquatic vegetation resources.
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References
Altmann J (1974) Observational study of behaviour: sampling methods. Behaviour 49:227–267
Amat JA (1984) Ecological segregation between red-crested pochard Netta rufina and pochard Aythya ferina in a fluctuating environment. Ardea 72:223–233
Amat JA (1990) Food usurpation by waterfowl and waders. Wildfowl 41:107–116
Amat JA, Soriguer RC (1984) Kleptoparasitism of coots by gadwalls. Ornis Scand 15:188–194
Benmergui M, Fournier JY, Fouque C, Broyer J (2005) L’expansion du Cygne tuberculé en Dombes (in French). Faune Sauvage 266:22–28
Bird Life International (2004) Birds in Europe—population estimates, trends and conservation status. Information Press, Oxford
Broyer J (2009) Compared distribution within a disturbed fishpond ecosystem of breeding ducks and bird species indicators of habitat quality. J Ornithol 150:761–768
Calsbeek R, Sinervo B (2002) An experimental test of the ideal despotic distribution. J Animal Ecol 71:513–523
Chapin FS III, Zavaleta ES, Eviner VT, Naylor RL, Vitousek PM, Reynolds HL, Hooper DU, Lavorel S, Osvaldo SE, Hobbie SE, Mack MC, Diaz S (2000) Consequence of changing biodiversity. Nature 405:234–242
Coleman JT, Spray CJ, Percival SM, Rickeard AT, Yeoman P (2002) The dynamics of a flock of mute swans at berwick-upon-tweed with particular reference to the effects of age, sex, social status and body condition on molt. Waterbirds 25:346–351
Conover MR, Kania GS (1994) Impact of interspecific aggression and herbivory by mute swans on native waterfowl and aquatic vegetation in New England. Auk 11:744–748
Cramp S, Simmons K (eds) (1986) The birds of the western Palearctic, vol 1. Oxford University Press, Oxford
Didham RK, Tylianakis JM, Hutchinson MA, Ewers RM, Gemmell NJ (2005) Are invasive species the drivers of ecological change? Trends Ecol Evol 20:470–474
Fouque C, Guillemain M, Benmergui M, Delacour G, Mondain-Monval JY, Schricke V (2007) Mute swan (Cygnus olor) winter distribution and numerical trends over a 16-year period (1987/1988–2002–2003) in France. J Ornithol 148:477–487
Gordon DM (1997) The population consequences of territorial behavior. Trends Ecol Evol 12:63–66
Haapanen A (1991) Whooper swan Cygnus c. cygnus population dynamics in Finland. Wildfowl (Suppl 1):137–141
Horrocks N, Perrins C, Charmantier A (2009) Seasonal changes in male and female bill knob size in the mute swan Cygnus olor. J Avian Biol 40(5):511–519
Källander H (2005) Commensal association of waterfowl with feeding swans. Waterbirds 28:326–330
Leyequièn E, De Boer WF, Cleef A (2007) Influence of body size on coexistence on bird species. Ecol Res 22:735–741
Lind H (1984) The rotation display of the mute swan Cygnus olor: synchronised neighbour responses as instrument in the territorial defence strategy. Ornis Scand 15:98–104
Martin P, Bateson P (1993) Measuring behaviour, an introductory guide. Cambridge University Press, Cambridge
Mikami O, Kawata M (2004) Does interspecific territoriality reflect the intensity of ecological interactions? A theoretical model for interspecific territoriality. Evol Ecol Res 6:765–775
Miquet A (2003) Cygne tuberculé. In: Cochet G (ed) Les oiseaux nicheurs de Rhône-Alpes. CORA, Lyon, France
Mooney HA, Cleland EE (2001) The evolutionary impact of invasive species. Proc Natl Acad Sci USA 98:5446–5451
Murray JR, Bertram G (1971) The ecological consequences of territorial behavior in birds. Ecology 52:414–423
Niemi GJ, McDonald ME (2004) Application of ecological indicators. Annu Rev Ecol Evol Syst 35:89–111
Orians GH, Willson MF (1964) Interspecific territories of birds. Ecology 45:736–745
Owen M, Black JM (1990) Waterfowl ecology. Blackie, Glasgow
Petrie SA, Francis CM (2003) Rapid increase in the lower Great Lakes population of feral mute swans: a review and a recommendation. Wildl Soc Bull 31:407–416
Pöysä H, Sorjonen J (2000) Recolonization of breeding waterfowl communities by the Whooper swan: vacant niches available. Ecography 23:342–348
R Development Core Team (2009) R: a language and environment for statistical computing. R Foundation for Statistical Computing. from http://www.R-project.org
Rowell H, Spray C (2004) Mute swan Cygnus olor (Britain and Ireland population) in Britain and Northern Ireland 1960–1961 to 2000–2001. Waterbird Review Series, The Wildfowl and Wetlands Trust, Slimridge
Scott DK (1984) Winter territoriality of mute swans Cygnus olor. Ibis 126:168–176
Valéry L, Fritz H, Lefeuvre JC, Simberloff D (2008) In search of a real definition of the biological invasion phenomenon itself. Biol Invas 10:1345–1351
Acknowledgments
We gratefully thank the Conseil Général de l’Ain, the Direction Régionale de l’Environnement Rhône-Alpes, the Fédération Départementale des Chasseurs de l’Ain (FDC Ain), the Fédération Nationale des Chasseurs and the Office National de la Chasse et de la Faune Sauvage (ONCFS) for their financial support. We are grateful to the many landowners who allowed us to access their ponds for the surveys. We also thank Daniel Rousset (FDC Ain), Maurice Benmergui and Laurence Curtet (ONCFS) for their active participation in this study, and two anonymous referees for valuable comments on an earlier version of this manuscript.
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Communicated by F. Bairlein.
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Gayet, G., Guillemain, M., Mesléard, F. et al. Are Mute Swans (Cygnus olor) really limiting fishpond use by waterbirds in the Dombes, Eastern France. J Ornithol 152, 45–53 (2011). https://doi.org/10.1007/s10336-010-0545-5
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DOI: https://doi.org/10.1007/s10336-010-0545-5