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X-WR-CALDESC:Events for Friends of the Australian National Botanic Gardens
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DTSTART;TZID=Australia/Canberra:20250602T110000
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DTSTAMP:20260505T152756
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UID:10001319-1748862000-1749391200@friendsanbg.org.au
SUMMARY:Off the Beaten Track Themed Walks
DESCRIPTION:Join a free one-hour guided walk to less commonly visited parts of the Gardens.  \nWalks commence at 11am and 2pm each day. \nThe walk features examples of work done by Gardens staff to conserve our threatened native species\, as well as plants in flower at this time of year. \nMeet at the clock near the ANBG bridge.  \nNo booking required for individuals\, but groups of more than six people should contact walks@friendsanbg.org.au a week before the planned walk.
URL:https://friendsanbg.org.au/event/off-the-beaten-track-themed-walks/
LOCATION:ACT
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DTSTART;TZID=Australia/Canberra:20250605T000000
DTEND;TZID=Australia/Canberra:20250605T235900
DTSTAMP:20260505T152756
CREATED:20250604T140000Z
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UID:10001320-1749081600-1749167940@friendsanbg.org.au
SUMMARY:Professor Jochen Brocks - ‘The deep origins of our eukaryotic ancestors and the rise of algae in the oceans’
DESCRIPTION:Friends ANBG will be among the first to hear Jochen\, from the ANU\, talk about the evolution of modern eurkaryotes\, the “Rise of Algae”\, in the body and molecular fossil records; and how it may be a most profound ecological transition in the evolution of complex life\, ultimately leading to the emergence of animals. \nAbstract \nIn the 1994 essay ‘Evolutionary Perfection of a Small Molecule’\, Nobel Laureate Konrad Bloch suggested that small molecules\, such as sterols in the membranes of nucleated cells\, may have evolved from more simple ancestor molecules. He had the (back then) crazy vision that it might be possible to find such primordial ‘ur’-sterols in the ancient rock record\, thus proving the idea of molecular evolution. However\, Bloch was reportedly not really hopeful that such molecules could really ever be preserved or discovered. \nIn the Botanical Gardens\, you will be among the first to hear that that such fossil molecules are abundantly preserved in sedimentary rocks up to 1.6 billion years old. The detected fossil fat molecules represent two steps in the biosynthetic pathway towards modern eukaryotic sterols (such as cholesterol) and appear to be witnesses of a lost world of ancient stem-group eukaryotes that were widespread and possibly abundant during Earth’s middle age (1.8 to 0.8 billion years ago). Our crown-group eukaryotic relatives must have co-existed with those primordial organisms for several hundred million years\, unable to invade their niches. With rising atmospheric oxygen levels and changing marine chemistry\, crown-group Eukarya\, including the algal ancestors of land plants\, started to expand and replace the Protosterol Biota ~1\,000 to 800 million years ago. This shift to modern eukaryotes\, the ‘Rise of Algae’\, is recorded in the body and molecular fossil records and may be one of the most profound ecological transitions in the evolution of complex life\, ultimately leading to the emergence of animals.  \nBiography \nJochen Brocks is a professor of palaeobiogeochemistry at the Research School of Earth Sciences\, Australian National University. He is fascinated by arcane biological processes in Precambrian oceans\, the early evolution of eukaryotes and the emergence of the first animals. To find clues about ancient life\, he studies molecular fossils of biological lipids (biomarkers) that can be preserved in sedimentary rocks for billions of years. \nBookings open on 9 May at https://www.trybooking.com/DALER
URL:https://friendsanbg.org.au/event/professor-jochen-brocks-the-deep-origins-of-our-eukaryotic-ancestors-and-the-rise-of-algae-in-the-oceans/
LOCATION:ACT
ATTACH;FMTTYPE=image/jpeg:https://friendsanbg.org.au/wp-content/uploads/2025/06/Brocks%20Community%20of%20stem%20group%20eukaryotes%20on%20microbial%20mat%20057-360x360.jpg
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DTSTART;TZID=Australia/Canberra:20250607T090000
DTEND;TZID=Australia/Canberra:20250607T120000
DTSTAMP:20260505T152756
CREATED:20250606T230000Z
LAST-MODIFIED:20260210T010105Z
UID:10001321-1749286800-1749297600@friendsanbg.org.au
SUMMARY:Black Mountain Weeding Work Party
DESCRIPTION:This month we shall be removing woody and other weeds near the ANBG fence\, so that there will be fewer seeds / weeds etc “jumping the fence” into the gardens and the Reserve. \nMeet: at the Electricity sub-station\, Frith Road\, Acton. \nBring: water \nWear: hat\, sunscreen\, long-sleeved shirt\, long pants\, gloves\, stout shoes. We shall break for delicious morning tea at about 10:30am.. \nPlease book: if you are planning to come\, please let us know by booking using this link: https://www.trybooking.com/CYPVF\nThis helps us to let you know if arrangements need to change at the last minute (for example\, adverse weather conditions). \nIf you need further information\, please contact Linda by phone 0437 298 711. \nWe look forward to seeing you at our next weeding work party. \nLinda Beveridge\n	Friends of Black Mountain \n 
URL:https://friendsanbg.org.au/event/black-mountain-weeding-work-party/
LOCATION:ACT
ATTACH;FMTTYPE=image/jpeg:https://friendsanbg.org.au/wp-content/uploads/2025/06/Adding%20to%20the%20piles%20LJB_360wide.jpg
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