Ceratodon purpureus is a cosmopolitan moss that survives some of the harshest places on Earth: from frozen Antarctica to hot South Australian deserts. In this study we isolated nine compounds from Australian and Antarctic C. purpureus and considered how they might help this species to survive under such extreme conditions.
Saturday (5thJan) we are back on King George Island, at the Argentinian Carlini Base. Carlini is the only station in Potter Cove and is named after a scientist Alejandro Ricardo Carlini. The station sits beneath the impressive Tres Hermanos mountain and the nearby glaciers are retreating rapidly exposing new rocky areas.
The weather is overcast, cloudy with wet snow. Young elephant seals haul out amongst the chunks of glacial ice that are washed up along the beach.
We tour the Science labs, the Dive sheds and also are given refreshments in the station mess. There is a compression chamber in the Dive facility and a technician to operate it in case the divers run into problems.
The scientists on station came from many countries and tell us about the current science research programs that are running on and around the station including a lot of marine biology and hydrology. It is great to see another base in action and to hear first-hand from the scientists about their research. It is also wonderful that so many people on station are prepared to give up their Saturday to entertain visitors.
The projects include remediation projects aimed at understanding how plants and microbes can clean up contaminated soil around Antarctic stations. Many sites in Antarctica are contaminated with oil and other chemicals as a result of historic waste practices and some of my students have investigated how tolerant Antarctic mosses and alga are to oil and if Macquarie Island plants can help promote soil clean ups.
I was particularly excited to see so much moss and lichen around Carlini, as well as the two vascular plants that grow on the peninsula region of Antarctica, the grass Deschampsia antarctica and the pearlwort, Colobanthus quitensis. The lichens and mosses have even started to colonise the whale bones that remain from historic whaling in the region.
The lush moss beds that grow near East Antarctica’s coast are among the only plants that can withstand life on the frozen continent. But our new research shows that these slow-growing plants are changing at a far faster rate than anticipated.
Read more in the Conversation
Plus here is a link to our latest youtube video
Sharon Robinson, Melinda Waterman & Andrew Netherwood (2017) East Antarctic mosses reveal a windier, drier climate
Robinson SA, King D, Bramley-Alves J, Waterman MJ, Ashcroft MB, Wasley J,Turnbull JD,Miller RE,Ryan-Colton E, Benny T, Mullany K, Clarke, LJ, Barry, L, HuaQ. (2018) Rapid change in East Antarctic terrestrial vegetation in response to regional drying. Nature Climate Change8, 879-884, DOI: 10.1038/s41558-018-0280-0
This page is an overview of the sceince projects that I was involved with on our January 2015 trip to King George Island with INACH, the Chilean Antarctic Program. I was working with two Chilean scientists on this trip -
Angelica Casanova-Katny and Gustavo Zuniga.
Angelica is from Centro de Biotecnología, Universidad de Concepción.
Gustavo is from the University of Santiago, Chile and his projects for this trip were....
Here is my introduction to the work from the field site at Collins Glacier on Maxwell Bay.
We also worked with a team of scientists from Portland State University including Dr Todd Rosentiel and Dr Sarah Eppley. Here is Todd talking about one part of his research.