Aldabra research station papers of Ian Swingland Field notebooks, mortality, nesting, breeding and reproductive data of the giant tortoise, audio-visual material including soundscape recordings, video footage. Extensive photographic slides, prints and two maps. Dried marine biological specimens (1970s): porcupine ray tails x 2 (Urogymnus asperrimus), giant clam shell (Tridacna gigas), lovely abalone (Haliotis clathrata); oceanic whitetip shark jaws x 2 (Carcharhinus longimanus); dorsal scutes x2. Most material dates from Swingland's time on the Aldabra Atoll from 1974-1979 but there is addtional correspondence post-dating this, as well as papers relating to 'Operation Drake' in 1980 and the Smithsonian Aldabra expedition in the 1990s. 1974 - 1990