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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Breeding bird densities in the Ramsar site Heden, Jameson Land, East Greenland
Auteurs :	Christian M. Glahder, Auteur ; Alyn Walsh, Auteur
Type de document :	Article
Dans :	Dansk Ornitologisk Forenings Tidsskrift (104(4) 2010)
Article en page(s) :	131-140
Langues:	Anglais
Résumé :	During 11-26 June 2009, territories of breeding birds were censused in two study areas (in total 63 km(2)) in the north-western part of the Ramsar site Heden, Jameson Land, in high-arctic East Greenland. The purpose was to establish baseline knowledge on breeding bird densities in the area in order to evaluate possible impacts from proposed mining activities on these populations. Total densities of breeding waders varied between 5.7 and 8.2 territories/km(2) which are similar to the average density of 6.4 territories/km(2) (SD=4.1) of 42 other investigated high-arctic study areas in Northeast Greenland and Ellesmere Island. We discuss the correlation between densities, the chosen size of the study area and the study period. Important breeders were Sabine's Gull Larus sabini and Whimbrel Numenius phaeopus which both are considered near-threatened in Greenland. Pink-footed Goose Anser brachyrhynchus had densities of 4-5 nests/km(2) which indicate a much larger breeding population in Jameson Land than the 300-600 pairs estimated in the 1980s. We estimated the number of breeding pairs that may be displaced by the planned mining activities in the area and compared with the number of pairs in the proposed replacement Ramsar site Orsted Dal, Jameson Land. The Orsted Dal area can fully compensate the lost Ramsar status for most waders, Pink-footed Geese, Barnacle Geese Branta leueopsis, Long-tailed Ducks Clangula hyemalis, Long-tailed Skuas Stercorarius longicaudus and Snow Buntings Plectophenax nivalis, but no territories have been found in Orsted Dal of Sabine's Gull, Red Phalarope Phalaropus fulicarius, Whimbrel and Lapland Bunting Calcarius lapponicus.

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