Department of Biological Sciences, NUS
Implication of Differential Gene Flow on Species and Subspecies Integrity of Birds in South-east Asia
Speaker: Pratibha Baveja (Graduate Student, Dept. of Biological Sciences, NUS)
Date: 26 April 2018, Thursday
Venue: DBS Conference room II (S1, Level 3, mezzanine)
Supervisor: Asst Prof Rheindt, Frank Erwin
Abstract: – Strength of gene flow determines the evolutionary trajectory of a species. Inter-specific gene flow or genetic leakage could threaten the genetic integrity of the species or could sometimes lead to hybrid speciation. Birds of Southeast Asia experience such unusual gene flow dynamics because of the unique evolutionary and human cultural history of the region.
In my thesis, I study: 1) Supertramp gene flow dynamics: Supertramps are highly dispersive forms found on small islands that are closely related to distinct species on mainland with little overwater gene flow capability. It is suggested that small islands in Southeast Asian archipelago might be inhabited by forms that follow very different gene flow patterns than expected. 2) Introgression in captivity of terminally endangered species with potential for reintroduction into the wild. As human-mediated habitat changes may lead to increased instances of secondary contact between previously isolated taxa, such a study becomes relevant in better understanding of gene flow dynamics in birds of Southeast Asia.
All are welcome