An energy flow diagram is presented in Fig. 5. ... 1977a) who came to the conclusion that the value was extremely high compared with circum-arctic vegetation types. In this connection it should be noted that, as a consequence of the paucity of species on the island, many niches of the ... The top of the food pyramid is occupied by the introduced cat, the skua (Stercorarius skua) and the two species of giantanbsp;...
|Title||:||South African Journal of Antarctic Research|