| Titre : | Numbers and distribution of wintering divers, grebes and seaducks in the Moray Firth, Scotland, 1998/99-2003/04 |
| Auteurs : | Bozena Kalejta-Summers, Auteur ; David Butterfield, Auteur |
| Type de document : | Article |
| Dans : | Wildfowl (56 2006) |
| Article en page(s) : | 113-128 |
| Langues: | Anglais |
| Résumé : | Numbers of divers, grebes and seaducks were counted in the Moray Firth during six consecutive winters between 1998/99 and 2003/04, and compared with earlier surveys. Common Scoter Melanitta nigra, Long-tailed Duck Clangula hyentails and Eider Somateria mollissima were the most abundant species, accounting for over 70% of all birds counted. When maximum winter numbers during the study period were compared with published data for earlier years, declines in numbers were apparent for Goosander Mergus merganser, Long-tailed Duck and Eider since the early 1980s, and for Red-breasted Merganser M. serrator since the late 1980s. Counts of Goldeneye Bucephala clangula have increased since the early 1980s and those of Scaup, Common Scoter and Velvet Scoter M. fusca since the late 1980s. There were considerable changes in the distribution of several species within the Moray Firth, probably in response to changes in the food supply attributed to improvements to sewage and distillery discharges and to associated declines in fish and Blue Mussel Mytilus edulis populations. The Moray Firth supports internationally important numbers of two species (Great Northern Diver Gavia immer and Slavonian Grebe Podiceps auritus) and is nationally important for 10 other diver, grebe and seaduck species. The area supports the largest numbers of wintering Long-tailed Duck and the second largest numbers of Great Northern Diver, Red-throated Diver G. stellata, Slavonian Grebe, Common Scoter,Velvet Scoter and Goldeneye in Britain. |
Bibliothèque Tour du Valat
Se connecter
La Tour du Valat
Institut de recherche pour la conservation des zones humides méditerranéennes- Les publications récentes de la Tour du Valat
- Catalogue en ligne du centre de ressources
- A la une
-
Sélections
- Les écrits de Luc Hoffmann, fondateur de la Tour du Valat
- Des références récentes sur les zones humides méditerranéennes
- Quelques exemples d'impact du changement climatique sur les zones humides
- Quelques références bibliographiques sur la grippe aviaire
- Les recherches de la Tour du Valat sur le saturnisme
- De récentes publications sur la Camargue
- Le fonds Camargue de la bibliothèque
- Coordination géographique
- Nous contacter
Infos pratiques
Heures d'ouverture et contact
Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...
Liens utiles
- 1 - Le site Internet de la Fondation Tour du Valat
- 2 - La base documentaire du Pôle-relais lagunes méditerranéennes
- 3 - Le site Internet consacré aux Oiseaux d'eau en région Méditerranée
- 4 - Le site Internet ObsNature Camargue -Crau-Alpilles - recueil de données d'observations naturalistes
- 5 - Le site Internet de MedWet, l’initiative pour les zones humides méditerranéennes
