Abstract
The Schelde estuary is an important wintering area and stop-over place for waders and waterfowl using the East Atlantic fly-way. The port of Antwerp is situated in the Lower Zeeschelde, the transition area between the brackish- and freshwater tidal part. Three intertidal areas in this zone (Groot Buitenschoor, Galgenschoor and Schor Ouden Doel) are protected under several international and national legislations. In this study long-term datasets (1982–1998) on water birds in these intertidal areas were analysed and attempts were made to assess the impact of two container terminals, constructed during the covered period. Overall abundance of water birds in the study area did not show any significant trends. Looking at individual areas, maxima and winter means on the Galgenschoor and Groot Buitenschoor were very variable but the peak seasons levelled out with time. On the Schor Ouden Doel, where hunting was banned, maximal numbers increased by a factor of four between 1985 and 1990, mainly due to an increase in Greylag Goose numbers. The trophic composition of the bird populations showed major shifts. Initially, species compositions in winter differed considerably between the three areas, but they became more similar during the study period. The results suggest that the area became more important as wintering and resting place for herbivores such as Greylag Goose and Wigeon while its function as feeding ground and stop-over site for migrating benthivorous birds became relatively less important, especially on the right bank. The water bird populations in the study area varied greatly with the geographic and regional trends for the different species and were influenced by winter severity but no direct proof of impacts from the container terminals could be established. Nearly every season the international 1 level was exceeded by one or more species, but the species of international importance changed with time. National and international protection measures are valuable but insufficient tools for the conservation of these estuarine habitats. A more comprehensive conservation strategy is proposed.
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References
Anselin, A. & E. Kuijken, 1995. Speciale beschermingszones voor het Vlaams Gewest, in uitvoering van de Habitat Richtlijn 92/43/EEG. Rapport Instituut voor Natuurbehoud (95.20), Hasselt.
Atkinson-Willes, G. L., 1976. The Numerical Distribution of Ducks, Swans an Coots as a Guide in Assessing the Importance of Wetlands in Midwinter. In Smart M. (ed.), Proc. Int. Conference on Conservation of Wetlands and Waterfowl, Heiligenhafen, Federal Republic of Germany: 199–254.
W. Baeyens B. Eck Particlevan C. Lambert R. Wollast L. Goeyens (1998) ArticleTitleGeneral description of the Scheldt estuary Hydrobiologia 366 1–14 Occurrence Handle10.1023/A:1003164009031
H. Boyd J. Y. Pirot (1989) Flyways and reserve networks for water birds: developed from papers presented at the 3rd Meeting of the Conference of Contracting Parties to the Ramsar Convention International Waterfowl Research Bureau (IWRB) Slimbridge
N. H. K. Burton M. J. S. Armitage A. J. Musgrove M. M. Rehfish (2002a) ArticleTitleImpacts of man-made landscape features on numbers of estuarine waterbirds at low tide Environmental Management 30 857–864 Occurrence Handle10.1007/s00267-002-2732-5
N. H. K. Burton M. M. Rehfish N. A. Clark (2002b) ArticleTitleImpact of␣disturbance from construction work on the densities and␣feeding behavior of waterbirds using the intertidal mudflats of Cardiff Bay, UK Environmental Management 30 865–871 Occurrence Handle10.1007/s00267-002-2733-4
R. Costanza W. M. Kemp W. R. Boynton (1993) ArticleTitlePredictability, scale and biodiversity in coastal and estuarine ecosystems: implications for management Ambio 22 88–96
N. C. Davidson D. d’A Laffoley J. P. Doody L. S. Way J. Gordon R. Key C. M. Drake M. W. Pienkowski R. Mitchell K. L. Duff (1991) Nature conservation and estuaries of Great Britain Nature Conservancy Council Peterborough
T. J. Davis (Eds) (1994) The Ramsar convention manual: a guide to the convention on wetlands of international importance especially as waterfowl habitat Ramsar Convention Bureau Gland
P. M. Dolman W. J. Sutherland (1995) ArticleTitleThe response of bird populations to habitat loss Ibis 137 S38–S46
B. J. Ens T. Piersma R. H. Drent (1994) ArticleTitleThe dependence of waders and waterfowl migrating along the east atlantic flyway on their coastal food supplies: what is the most profitable research programme? Ophelia Supplement 6 127–151
P. R. Evans R. M. Ward M. Bone M. Leakey (1998) ArticleTitleCreation of temperate-climate intertidal mudflats: Factors affecting colonization and use by benthic invertebrates and their bird predators Marine Pollution Bulletin 37 535–545 Occurrence Handle10.1016/S0025-326X(98)00140-4 Occurrence Handle1:CAS:528:DyaK1MXlvV2ksLg%3D
R. Fairbridge (1980) The estuary: its definition and geodynamic cycle E. Olausson I. Cato (Eds) Chemistry and Biochemistry of Estuaries Wiley New York 1–35
S. Frazier (1996) An overview of the world’s Ramsar sites. Wetlands International Publication 39 Wetlands International Oxford
A. Gerakis K. Kalburtji (1998) ArticleTitleAgricultural activities affecting the functions and values of Ramsar wetland sites of Greece Agriculture Ecosystems & Environment 70 119–128
J. D. Goss-Custard R. W. G. Caldos R. T. Clarke S. E. A Le V. dit Durell J. Urfi A. D. West (1995) ArticleTitleConsequences of habitat loss and change to populations of wintering migratory birds: predicting the local and global effects from studies of individuals Ibis 137 S56–S66
Goss-Custard, J. D., R. Rufino & A. Luis (eds), 1997. Effect of habitat loss and change on waterbirds. Proceedings of the 10th International Waterfowl Ecology Symposium held at the University of Aveiro, Portugal 18–21 September 1995. 1991. London, Stationery Office. Wetlands International Publication.
J. D. Goss-Custard M. G. Yates (1992) ArticleTitleToward predicting the effect of salt-marsh reclamation on feeding bird numbers on the Wash Journal of Applied Ecology 29 330–340
J. D. Goss-Custard R. M. Warwick R. Kirby S. McGrorty R. T. Clarke B. Pearson W. E. Rispin S. E. A Le V. Dit Durell R. J. Rose (1991) ArticleTitleTowards predicting wading bird densities from predicting prey densities in a post-barrage Severn estuary Journal of Applied Ecology 28 1004–1026
J. S. Gray (1997) ArticleTitleMarine biodiversity: patterns, threats and conservation needs Biodiversity and Conservation 6 153–175 Occurrence Handle10.1023/A:1018335901847
R. E. Green (1995) ArticleTitleDiagnosing causes of bird population decline Ibis 137 S47–S55
C. Heip P. M. J. Herman (1995) ArticleTitleMajor biological processes in European tidal estuaries: a synthesis of the JEEP-92 Project Hydrobiologia 311 1–7
D. Hill P. Rushton N. Clarck P. Green R. Prys-Jones (1993) ArticleTitleShorebird communities on British estuaries: factors affecting community composition Journal of Applied Ecology 30 220–234
A. Hurstel R. Sanné (1998) ArticleTitleLe Rhin franco-allemand, site d’importance internationale pour l’hivernage des oiseaux d’eau Nos Oiseaux supplement 2 13–26
Ijnsen, F., 1991. Karaktergetallen van de winters vanaf 1707, Zenit 69–73.
V. Keller (1998) ArticleTitleLa Suisse et la Convention de Ramsar: un bilan Nos Oiseaux supplement 2 9–12
M. Kershaw P. A. Cranswick (2002) ArticleTitleNumbers of wintering waterbirds in Great Britain, 1994/1995–1998/1999: I Wildfowl and selected waterbirds. Biological Conservation 111 91–104
C. J. Krebs (1991) ArticleTitleThe experimental paradigm and long-term population studies Ibis 133 3–8
Kushlan, J. A., 1993. Waterbirds as bioindicators of wetland change: are they a valuable tool? In Moser, M., R. C. Prentice & J. van Vessem (eds), Waterfowl and Wetland Conservation in the 1990s: A Global Perspective International Waterfowl and Wetlands Research Bureau (IWRB), Slimbridge.
L. L. Long C. J. Ralph (2001) ArticleTitleDynamics of habitat use by shorebirds in estuarine and agricultural habitats in northwestern California Wilson Bulletin 113 41–52
A. E. Magurran (1988) Ecological Diversity and its Measurement Croom Helm London
J. A. Masero A. Perez-Hurtado M. Castro G. M. Arroyo (2000) ArticleTitleComplementary use of intertidal mudflats and adjacent salinas by foraging waders Ardea 88 177–191
D. S. Mclusky (1993) ArticleTitleMarine and estuarine gradients – An overview Netherlands Journal of Aquatic Ecology 27 489–493
D. S. McLusky (1999) ArticleTitleEstuarine benthic ecology: a European perspective Australian Journal of Ecology 24 302–311 Occurrence Handle10.1046/j.1442-9993.1999.00983.x
D. S. McLusky D. M. Bryant Elliott (1992) ArticleTitleThe impact of land-claim on macrobenthos, fish and shorebirds on the forth estuary, eastern Scotland Aquatic Conservation: Marine and Freshwater Ecosystems 2 211–222
Meininger, P. L., C. M. Berrevoets & R. C. W. Strucker, 1994. Watervogeltellingen in het Zuidelijk Deltagebied 1987–91. Rapport RIKZ; 94.005. Ministerie van Verkeer en Waterstaat, Directoraat-Generaal Rijkswaterstaat (RWS), Rijksinstituut voor Kust en Zee (RIKZ) , Middelburg.
Meininger, P. L., C. M. Berrevoets & R. C. W. Strucker, 1998. Watervogels in de zoute delta 1996/97. Ministerie van␣Verkeer en Waterstaat, Directoraat-Generaal Rijkswaterstaat (RWS), Rijksinstituut voor Kust en Zee (RIKZ), Middelburg.
P. L. Meininger A. M. Blomert E. C. Marteijn (1991) ArticleTitleWatervogelsterfte in het Deltagebied, ZW Nederland gedurende de drie koude winters van 1985,1986 en 1987 Limosa 64 89–102
P. L. Meininger H. Schekkerman M. W. J. Roomen Particlevan (1995) ArticleTitlePopulatieschattingen en 1% -normen van in Nederland voorkomende watervogelsoorten: voorstellen voor standaardisatie Limosa 68 41–48
Meltofte, H., Blew, J., Frikke, J., Rösner, H.-U., Smit, C. J. 1994. Numbers and distribution of waterbirds in the Wadden Sea: results and evaluation of 36 simultaneous counts in the Dutch–German–Danish Wadden Sea 1980–1991. IWRB Publication; 34. Wader Study Group Bulletin; 74 special issue. CWSS; IWRB; Wader Study Group, Wilhelmshaven.
N. Meyers (1990) ArticleTitleThe biodiversity callenge: expanded hot-spots analysis The Environmentalist 10 243–256 Occurrence Handle12322583
N. Meyers (1993) ArticleTitleBiodiversity and the precautionary principle Ambio 22 74–79
J. R. Mitchell M. E. Moser J. S. Kirby (1988) ArticleTitleDeclines in midwinter counts of waders roosting on the Dee estuary Bird Study 35 191–198
G. Mitlacher (1998) Ramsar-Bericht Deutschland Ramsar Convention Bureau Gland
Monval, J. Y. & J. Y. Pirot, 1989. Results of the IWRB international waterfowl census 1967–1986: wintering in the western Paleartic and West Africa. I. 1989. Gloucester., International Waterfowl Research Bureau (IWRB).
M. Moser C. Bibby I. Newton M.W. Pienkowski W.J. Sutherland S. Ulfstrand G. Wynne (1995) ArticleTitleBird Conservation: the science and the action. Conclusions and recommendations, a message to influence the role and direction of ornithology in conservation to the year 2000 and beyond Ibis 137 S3–S7
M. Moser R. C. Prentice J. Vessem Particlevan (1993) Waterfowl and Wetland Conservation in the 1990s: A Global Perspective International Waterfowl and Wetlands Resaerch Bureau (IWRB) Slimbridge
L. Nillson A. Follestad K. Koffijberg E. Kuijken J. Madsen J. Mooij J. B. Mouronval H. Persson V. Schricke B. Voslamber (1999) Greylag Goose: Anser anser: Northwest Europe J. Madsen G. Cracknell A. D. Fox (Eds) Goose Populations in the Western Palearctic. A Review of Status and Distrubution, Wetlands International Publications No. 48 Wetlands International Wageningen, The Netherlands 182–201
T. Piersma (1987) ArticleTitleHop, skip or jump? Constraints on migration of arctic waders by feeding, fattening and flight speed. (in Dutch with English summary) Limosa 60 185–194
Pirot, J.Y., Laursen, K., Madsen, J., Monval, J.-Y. 1989. Population estimates of swans, gese, ducks, and Eurasian Coot Fulica atra in the Western Palearctic and Sahelian Africa. In: Boyd, H., Pirot, J.-Y. (eds) Flyways and Reserve Networks for Water Birds IWRB, Slimbridge, England. 14–23.
E. Pouta M. Rekola J. Kuuluvainen O. Tahvonen C. Z. Li (2000) ArticleTitleContingent valuation of the Natura 2000 nature conservation programme in Finland Forestry 73 119–128 Occurrence Handle10.1093/forestry/73.2.119
Prater, A. J., 1976. The distribution of coastal waders in Europe and North Africa. In Smart M. (ed.), Proceedings of the fifth International Conference on Conservation of Wetlands and Waterfowl, Heiligenhafen, 1974 IWRB, Slimbridge: 255–271.
M. M. Rehfisch G. E. Austin M. J. S. Armitage P. W. Atkinson S. J. Holloway A. J. Musgrove M. S. Pollitt (2003) ArticleTitleNumbers of wintering waterbirds in Great Britain and the Isle of Man. (1994/1995–1998/1999): II Coastal waders (Charadrii). Biological Conservation 112 329–341
S. C. Ridgill A. D. Fox (1990) Cold weather movements of waterfowl in Western Europe: a report undertaken by the Wildfowl and Wetlands Trust, Slimbridge. IWRB Special Publication No. 13 International Waterfowl and Wetlands Research Bureau (IWRB) Slimbridge, England
S. Rosa J. M. Palmeirim F. Moreira (2003) ArticleTitleFactors affecting Waterbird Abundance and Species Richness in an increasingly Urbanised Area of the Tagus Estuary in Portugal Waterbirds 26 226–232
P. M. Rose (1995) Western Palearctic and South-West Asia waterfowl census 1994 IWRB Publication 35 Slimbridge, England
P. M. Rose D. A. Scott (1994) Waterfowl Population Estimates IWRB Publication 29 Slimbridge, England
P. M. Rose D. A. Scott (1997) Waterfowl Population Estimates Wetlands International Publication 44 Wageningen, the Netherlands
D. A. Roshier A. I. Robertson R. T. Kingsford (2002) ArticleTitleResponses of waterbirds to flooding in an arid region of Australia and implications for conservation Biological Conservation 106 399–411 Occurrence Handle10.1016/S0006-3207(01)00268-3
D. A. Scott P. M. Rose (1996) Atlas of Anatidae Populations in Africa and Western Eurasia Wetlands International Wageningen, the Netherlands
J. Smart A. G. Gill (2003) ArticleTitleNon-intertidal habitat use by shorebirds: a reflection of inadequate intertidal resources? Biological Conservation 111 359–369 Occurrence Handle10.1016/S0006-3207(02)00304-X
Smit, C. J. & T. Piersma, 1989. Numbers, midwinterdistribution and migration of wader populations using the East Atlantic Flyway. In Boyd H. & J.-H. Pirot (eds), Flyways and Reserve Networks for Water Birds. Slimbridge, England: 24–63.
T. H. Suchaneck (1994) ArticleTitleTemperate coastal marine communities: biodiversity and threats American Zoologist 34 100–114
A. Tamisier P. Grillas (1994) ArticleTitleA review of habitat changes in the Camargue: an assessment of the effects of the loss of biological diversity on the wintering waterfowl community Biological Conservation 70 39–47 Occurrence Handle10.1016/0006-3207(94)90297-6
L. G. Underhill R. P. Prys-Jones (1994) ArticleTitleIndex numbers for waterbird populations. I Review and methodology Journal of Applied Ecology 31 463–480
E. Bergh ParticleVanden S. Damme ParticleVan J. Graveland D. Jong Particlede (2003) Voorstel voor natuurontwikkelingsmaatregelen ten behoeve van de Ontwikkelingsschets 2010 voor het Schelde-estuarium, op basis van een ecosysteemanalyse en verkenning van mogelijke maatregelen om het streefbeeld Natuurlijkheid van de Lange Termijn Visie te bereiken RIKZ, Institute of Nature Conservation, University of Antwerp Middelburg, The Netherlands
van der Have, T. M., E. Nieboer & G. C. Boere, 1984. Age-related distribution of Dunlin in the Dutch Wadden Sea. In P. R. Evans, J. D. Goss-Custard & W. G. Hale (eds), Coastal Waders and Wildfowl in Winter. British Ornithologists Union, 160–176.
J. Impe ParticleVan (1999) ArticleTitleGreylag goose Anser anser and White-fronted goose A. albifrons in the claimed polders of the river␣Scheldt near Doel: numbers and interspecific relationships (in Dutch with English summary) Oriolus 65 93–108
J. Vessem ParticleVan E. Kuijken (1986) Overzicht van de voorgestelde speciale beschermingszones in Vlaanderen voor het behoud van de vogelstand. (E.G. richtlijn 79/409/EEG van 2 April 1979). Instituut voor Natuurbehoud Hasselt
H. Voet (1982) ArticleTitleBergeenden, Tadorna tadorna, in slagpenrui aan de Beneden-Schelde bij Antwerpen De Giervalk 72 91–99
M. G. Yates J. D. Goss-Custard (1991) ArticleTitleA comparison between high water and low water counts of shorebirds on the Wash, east England Bird Study 38 179–187
M. G. Yates J. D. Goss-Custard S. McGrorty K. H. Lakhani S. E. A. Le V. Dit Durell R. T. Clarke W. E. Rispin I. Moy T. Yates R. A. Plant A. J. Frost (1993) ArticleTitleSediment characteristic, invertebrate densities and shorebird densities on the inner banks of the Wash Journal of Applied Ecology 30 599–614
T. Ysebaert P. L. Meininger P. Meire K. Devos C. M. Berrevoets R. C. W. Strucker E. Kuijken (2000) ArticleTitleWaterbird communities along the estuarine salinity gradient of the Scheldt estuary, NW-Europe Biodiversity and Conservation 9 1275–1296 Occurrence Handle10.1023/A:1008976306651
T. Ysebaert P. Meire P. M. J. Herman H. Verbeek (2002) ArticleTitleMacrobenthic species response surfaces along estuarine gradients: prediction by logistic regression Marine ecology progress series 225 79–95
T. Ysebaert P. Meire D. Maes J. Buijs (1993) ArticleTitleThe benthic macrofauna along the estuarine gradient of the Schelde estuary Netherlands Journal of Aquatic ecology 27 327–341
L. I. Zwarts (1996) Waders and their estuarine food supplies Ministerie van Verkeer en Waterstaat Lelystad
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Bergh, E.V.d., Ysebaert, T. & Meire, P. Water bird communities in the Lower Zeeschelde: long-term changes near an expanding harbour. Hydrobiologia 540, 237–258 (2005). https://doi.org/10.1007/s10750-004-7147-2
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DOI: https://doi.org/10.1007/s10750-004-7147-2