| one publication added to basket [39406] | Herring Gull Larus argentatus winter diet at the western Baltic Sea coast: does ice cover make a difference?
Garthe, S.; Wienck, K.; Cassens, I. (2003). Herring Gull Larus argentatus winter diet at the western Baltic Sea coast: does ice cover make a difference? Atlant. Seabirds 5(1): 13-20
In: Atlantic Seabirds. Seabird Group and Dutch Seabird Group: Sandy, Bedfordshire. ISSN 1388-2511, more
|   |
| Keywords |
Aquatic organisms > Marine organisms > Aquatic birds > Marine birds
Composition > Chemical composition > Food composition
Diets
Fauna > Aquatic organisms > Aquatic animals > Shellfish
Larus argentatus Pontoppidan, 1763 [WoRMS]
ANE, Baltic [Marine Regions]
Marine/Coastal |
| Authors | | Top |
- Garthe, S., correspondent
- Wienck, K.
- Cassens, I.
|
|
|
| Abstract |
The diet of Herring Gulls Larus argentatus at Kiel Fjord, Baltic Sea, was assessed from pellets collected in a very cold winter (1995-96), in a very mild winter (1997-98) and in spring 1996 for comparison. Bivalves (mainly Mytilus edulis) were the most frequently occurring food item in all three periods. Gastropods (chiefly Littorina spec.) and crustaceans (mainly Carcinus maenas) were following next. Stones and different types of plant material were also quite frequently present in the pellets. Differences between the three periods were not very marked. Crustaceans, algae, grass and stones were most abundantly found in the cold winter. Oligochaetes occurred only in spring. Stones were quite common in the pellets both by frequency and by mass. In the cold winter 1996, mean stone mass comprised 47% of total pellet mass. It is concluded that Herring Gulls did not alter their diet in the cold winter to a major extent. |
|
