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We report on long-term surface elevation changes of the central Amery Ice Shelf … (AIS) by comparing elevation records spanning 4 decades (1968–2007). We use elevation … records acquired with the following methods: optical leveling (1968–1969); ERS … radar altimetry (1992–2003); GPS (1995–2006)…
Invasive species are a serious threat to biodiversity … worldwide. The relatively simple ecological … systems of the subantarctic have the potential to be signiWcantly … damaged by predatory species that invade. Two species of exotic, predatory…
The southern elephant seal (Mirounga leonina) population at Macquarie Island represents … about 10% of the world’s population. The number of adult females breeding at the island has … decreased substantially since the first whole island census was conducted in 1952.