BDBSA Project Metadata Detail

Survey/Project Number: 763          Total No. of Sites: 1
Survey/Project Name: Is prey size driving ecological speciation in Tiger snakes?
Abstract: Hopkins Island adult Tiger snakes seemingly occur in two size categories, with small and very large snakes. Such difference may result from different diet, small versus large prey. I suspect that at some stage juvenile Tiger snakes may or may not successfully swallow and move on to larger prey (from skinks to bird chicks). Since large females snake usually prefer to mate with large male, there is an opportunity for assortive mating to occur, and thus reproductive isolation between the two snake groups. Eventually such system may lead to the evolution of two snake species from a single population. The Tiger snake speciation investigations was conducted in January 2010.
 
Start Date: 25/01/2010      End Date: 30/01/2010
Survey Type: Vertebrates only
   
Study Area Description: Hopkins Island - Eyre Peninsula
Objectives
         Vegetation: *** No vegetation survey objectives recorded
         Fauna: *** No fauna survey objectives recorded
Methodology
         Vegetation: *** No vegetation methodology recorded
         Fauna: *** No vertebrate methodology recorded

Data Distribution Rules: Public
Project Basis: Fauna : Unclassified - pending reassessment.
Information Authority: University of Sydney