In 1912–13 he performed research of the fauna in Algeria and Tunisia, and following World War I, returned to Tunisia as a forester.
In 1925 he took part in one of the first motorized crossings of the Sahara (from Tunis to Cotonou via Lake Chad).
From 1928 he was stationed in Madagascar, where he collected zoological specimens that included a number of lemur species.
Lavauden is credited with providing descriptions for several new mammal and avian species/subspecies.
Many of his collections are housed at the natural history museum in Grenoble.