1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
af 30
A permanent vegetation monitoring plot in the centre of the gull colony, completely covered with vegetation. (Photo: Borgþór Magnússon, July 2002)
