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Macquarie Island terrestrial environments are changing as global climate change occurs and as alterations in the balance of feral animal populations occur from management intervention.
Project title:
Antarctic lake cores contain sensitive microalgal recorders of climate change. To date, very recent climate information from lakes has been limited by core sampling resolution.
Models of climate change project a decrease in the global ocean overturning circulation, significantly impacting climate and ocean ecosystems.
Evolution of Water Mass properties in the Circumpolar Current during 1991 - 1996 … The Southern Ocean is the formation region for several water masses of global importance for the earths climate.
The concentration of tiny plants (phytoplankton) in Antarctic waters can be estimated by space-based sensors which measure light reflected from the ocean surface.
In the last ten years aquatic microbial ecologists have come to appreciate the potential importance of viruses in microbial community dynamics. Bacteria, algae and protists are all infected by viruses and suffer lysis.
Seismologists investigate deep Earth structure by interpreting waveforms from distant earthquakes. High-fidelity instruments deployed in Antarctica will enable new details to be imaged in the crust and mantle beneath the ice-covered regions crossed by the earthquake waves.
Antarctic marine diatoms are sensitive to environment change. This project will determine the environmental niches occupied by key diatom species in Antarctic sediments.