Geoffrey Tandy Geoffrey Tandy Geoffrey A. Tandy (1900–1969) was a British marine biologist and broadcaster. Tandy graduated from Oxford University in 1921, and pursued graduate studies at Birkbeck College, in the University of London. He was employed at the Natural History Museum in London from 1926 to 1948, specialising in the biology of algae, after which he worked for the British Foreign Office until 1954. A friend of T. S. Eliot, Tandy wrote a "Broadcasting Chronicle" for "The Criterion", and was the first to broadcast "Old Possum's Book of Practical Cats" in 1937. During the Second World War he worked at Bletchley
Leadbeater's possum Leadbeater’s possum involving protection of remaining old-growth stands, and maintenance of younger stands that are allowed to attain hollow-bearing age. The combination of 40-year-old regrowth (for food) and large dead trees left still standing after the fires (for shelter and nesting) allowed the Leadbeater's possum population to expand to an estimated peak of about 7500 in the early 1980s. From its peak in the 1980s, the Leadbeater's possum population was expected to further decline rapidly, by as much as 90%, due to a habitat bottleneck. The population has dropped sharply since 1996. Particularly, the February 2009 Black Saturday bushfires destroyed