7Ravenscrofta N O M,Beardallb C H.The importance of freshwater flows over estuarine mudflats for wintering waders and wildfowl[J].Biological Conservation,2003,113:89-97.
8Moreira F.The importance of shorebirds to energy fluxes in a food web of a south european estuary[J].Estuarine,Coastal and Shelf Science,1997,44:67-78.
9Múrias T,Cabral J A,Marques J C.Short-term effects of intertidal macroalgal blooms on the macrohabitat selection and feeding behaviour of wading birds in the mondego estuary (West Portugal)[J].Estuarine,Coastal and Shelf Science,1996,43:677-688.