Conservation Genetics

, Volume 12, Issue 5, pp 1387–1393

Genetic structure and connectivity among lake populations of threatened Paratherina sailfin silversides from Sulawesi, Indonesia

  • Ryan P. Walter
  • J. Derek Hogan
  • G. Douglas Haffner
  • Daniel D. Heath
Short Communication

DOI: 10.1007/s10592-011-0238-5

Cite this article as:
Walter, R.P., Hogan, J.D., Haffner, G.D. et al. Conserv Genet (2011) 12: 1387. doi:10.1007/s10592-011-0238-5

Abstract

Spatially restricted endemic species are of special conservation concern as their narrow distributions render them particularly vulnerable to extinction through habitat loss. However, estimates of connectivity among populations can provide a basis for targeted conservation action. Here we quantify population genetic structure and connectivity for two endemic Sailfin silverside species within and among two lakes from the Malili Lakes, Indonesia. For both species, a greater proportion of genetic variance was found among sites within a lake than between lakes, indicative of riverine gene flow and cryptic genetic structure within the lakes. Bayesian genotype clustering revealed substantial population genetic structure within and among lakes, but also showed evidence of dispersal between lakes. These results are timely given the growing anthropogenic stressors in the Malili Lakes watershed, including mining and forestry operations.

Keywords

Cryptic genetic structure Malili Lakes Microsatellites Paratherina Telmatherinidae 

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Ryan P. Walter
    • 1
    • 2
  • J. Derek Hogan
    • 1
  • G. Douglas Haffner
    • 1
  • Daniel D. Heath
    • 1
  1. 1.Great Lakes Institute for Environmental ResearchUniversity of WindsorWindsorCanada
  2. 2.Great Lakes Institute for Environmental ResearchUniversity of WindsorWindsorCanada

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