|Title||The Rainbow Connection: An integrative approach to identifying melanotaeniid (Melanotaenia splendida inornata) dispersal in response to flooding.|
|Publication Type||Conference Participation|
|Year of Publication||2010|
|Authors||Mills, CE, Hadwen, WL, Schmidt, D, Hughes, JM|
|Keywords||5: Foodwebs and biodiversity|
While genetic markers or stable isotope signatures are frequently applied to resolve patterns of dispersal, very rarely are these methods used in conjunction as a way of determining migration events in different time scales. As genetic markers can investigate gene flow in ancestral populations, stable isotope analyses can complement dispersal studies by revealing very recent patterns of migration. A combination of microsatellite loci and stable isotope analyses (using C and N) were used to investigate the effects of Wet Season flooding on dispersal of the Chequered Rainbowfish (Melanotaenia splendida inornata) in tropical Queensland (Australia). Samples were collected from the Mitchell River headwaters to capture the 2009/2010 Wet Season. Populations were identified using genetic and stable isotope analyses, with immigrants being outlying individuals of defined populations. By comparing and contrasting these two measurements of dispersal, an integrated and holistic approach to identifying important dispersal corridors may be gained.