The Terrestrial Vertebrate Fauna of the Krakatau Islands, Sunda Strait, 1883-1986

摘要: The results of terrestrial vertebrate collecting on the Krakatau Islands, Sunda Strait, during La Trobe University-L.I.P.I. expeditions in 1984, 1985 and 1986 are reported previous records from islands consolidated reviewed. Since 1883 eruption Krakatau, 15 species vertebrates (13 reptiles 2 mammals) have been recorded Group. Two (Crocodylus porosus Cosymbotus platyurus) only incidental but remaining thirteen at some stage established breeding populations one or more islands. In first 50 years up to 1933, ten (eight two reached islands, eight which (Hemidactylus frenatus, Lepidodactylus lugubris, Emoia atrocostata, Mabuya multifasciata, Varanus salvator, Python reticulatus, Rattus rattus tiomanicus) had populations. Results collections made over period 1982-1986 showed that (L. lugubris E. atrocostata) with 1933 become extinct, whereas five new (Gekko gecko, Gekko monarchus, Hemiphyllodactylus typus, Chrysopelea paradisi Ramphotyphlops braminus) Therefore end 100 years, eleven extant group; extinct; records. Significant ecological changes development present day fauna discussed. These include canopy closure forests continual marine erosion coasts together eliminated most open habitats Rakata, Sertung Panjang; heavy ash falls volcanic eruptions Anak periodically disrupted successional stages Sertung, Panjang Krakatau. dispersal Strait is discussed light boat traffic predominant southwest ocean currents. It concluded by human agency boats highly significant, seven (46%) being likely this way; prevailing flow water makes Sebesi Sumatra probable source areas for dispersed currents swimming rafting. island became permanent Aug. 1930, has three (H. V. salvator C. paradisi) all Panjang. early arrival H. frenatus their abundance four distinguishes them as successful colonizers group.