Feeding grounds for waders in the Bay of the Mont Saint-Michel (France): the Lanice conchilega reef serves as an oasis in the tidal flats

Abstract : The tube-building polychaete Lanice conchilega can form dense populations, often called reefs, which promote benthic community change and constitute feeding grounds for secondary consumers. The aim of this study was to quantify the role of the L. conchilega reef of the Bay of the Mont Saint-Michel (BMSM) for feeding waders, by combining macrobenthos data, bird counts and bird diet information. Wader densities in the reef were on average 46.6 times higher than in non-reef areas. According to faecal analyses, waders in the reef mainly selected the accompanying fauna and especially crustaceans. The attractiveness of the reef to feeding birds may be largely explained by the high abundance, richness and biomass of macrobenthic species in the reef compared with the rest of the BMSM.
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Submitted on : Monday, March 25, 2013 - 8:31:23 AM
Last modification on : Tuesday, May 14, 2019 - 10:21:26 AM

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Bart de Smet, Laurent Godet, Jérôme Fournier, Nicolas Desroy, Mikaël Jaffré, et al.. Feeding grounds for waders in the Bay of the Mont Saint-Michel (France): the Lanice conchilega reef serves as an oasis in the tidal flats. Marine Biology, Springer Verlag, 2013, 160, pp.751-761. ⟨10.1007/s00227-012-2130-3⟩. ⟨hal-00804122⟩

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