Target Species: Chappell Island tigersnake, Notechis ater serventyi
Location: Chappell Island, Bass Straits, Tasmania (also Tasmania, and Roxby Is., South Australia)
Director: Jon Stephens
Location: Bass Strait, off Launceston, Tas., & Spencer Gulf, off Adelaide, SA.
Mission Statement:
Chappell Island is not only an island of snakes, it is an island of giant snakes, 3,000 giant highly venomous tigersnakes on one tiny island. Chappell Island tigersnakes are the largest tigersnakes in the world yet they survive on an annual six week feast of mutton bird chicks before enduring over ten months of enforced fasting once the fast-growing mutton bird chicks are too large for the snakes to eat them. There is nothing else for the adult snakes to eat. The island tigersnake population is also unusual in that it is very adult-heavy, there are very few juvenile tigersnakes to be found. Mark and American herpetologist Dr Terry Schwaner set out to investigate why there are so few juveniles and capture some of the adult tigersnakes that Terry recorded and marked over the last 17 years to see how much they have grown since he last met them. Could the Chappell island tigersnakes be the oldest living snakes in the world?
[Mark and Terry also spent time on Tasmania searching out all three species of native snakes and travelled to Roxby Island, off South Australia, in search of a dwarf tigersnake known to live there on a diet of skinks but this footage never made the final film.]
This old Chappell Island tigersnake (Notechis ater serventyi) has a large parasitic tick on its neck.
Species recorded during ‘Feast of the Snakes’
| Species | Common Name |
| MYOBATRACHIDAE | SOUTHERN FROGS |
| Limnodynastes dumerili | Eastern banjo frog |
| HYLIDAE | TREEFROGS |
| Litoria aurea | Green and golden bell frog |
| GEKKONIDAE | GECKOES |
| Christinus marmoratus | Marbled gecko |
| SCINCIDAE | SKINKS |
| Bassiana duperreyi | Three-lined skink |
| Ctenotus uber orientalis | Eastern spotted ctenotus |
| Egernia whitii | White’s skink |
| Hemiergis peronii | Peron’s skink |
| Lerista bougainvillii | Southeastern slider |
| Menetia greyii | Grey’s skink |
| Niveoscincus metallicus | Tasmanian metallic skink |
| Pseudemoia entrecasteauxii | Entrecasteaux skink |
| Tiliqua nigrolutea | Blotched blue-tongue skink |
| Trachydosaurus rugosa aspera | Southern shingleback |
| ELAPIDAE | COBRAS & THEIR KIN |
| Austrelaps superbus | Australian copperhead |
| Drysdalia coronoides | White-lipped snake |
| Notechis ater humphreysi | Tasmanian tigersnake |
| Notechis ater serventyii | Chappell Island tigersnake |