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Phylogeography and population genomics of a lotic water beetle across a complex tropical landscape

Journal Article


Abstract


  • The habitat template concept applied to a freshwater system indicates that lotic species, or those which occupy permanent habitats along stream courses, are less dispersive than lentic species, or those that occur in more ephemeral aquatic habitats. Thus, populations of lotic species will be more structured than those of lentic species. Stream courses include both flowing water and small, stagnant microhabitats that can provide refuge when streams are low. Many species occur in these microhabitats but remain poorly studied. Here, we present population genetic data for one such species, the tropical diving beetle Exocelina manokwariensis (Dytiscidae), sampled from six localities along a ~300 km transect across the Birds Head Peninsula of New Guinea. Molecular data from both mitochondrial (CO1 sequences) and nuclear (ddRAD loci) regions document fine-scale population structure across populations that are ~45 km apart. Our results are concordant with previous phylogenetic and macroecological studies that applied the habitat template concept to aquatic systems. This study also illustrates that these diverse but mostly overlooked microhabitats are promising study systems in freshwater ecology and evolutionary biology. With the advent of next-generation sequencing, fine-scale population genomic studies are feasible for small nonmodel organisms to help illuminate the effect of habitat stability on species’ natural history, population structure and geographic distribution.

UOW Authors


  •   Lam, Athena (external author)
  •   Gueuning, Morgan (external author)
  •   Kindler, Carolin (external author)
  •   Van Dam, Matthew (external author)
  •   Alvarez, Nadir (external author)
  •   Panjaitan, Rawati (external author)
  •   Shaverdo, Helena (external author)
  •   Lloyd White
  •   Roderick, George (external author)
  •   Balke, Michael (external author)

Publication Date


  • 2018

Citation


  • Lam, A. Wai., Gueuning, M., Kindler, C., Van Dam, M., Alvarez, N., Panjaitan, R., Shaverdo, H., White, L. T., Roderick, G. K. & Balke, M. (2018). Phylogeography and population genomics of a lotic water beetle across a complex tropical landscape. Molecular Ecology, 27 (16), 3346-3356.

Scopus Eid


  • 2-s2.0-85051707723

Number Of Pages


  • 10

Start Page


  • 3346

End Page


  • 3356

Volume


  • 27

Issue


  • 16

Place Of Publication


  • United Kingdom

Abstract


  • The habitat template concept applied to a freshwater system indicates that lotic species, or those which occupy permanent habitats along stream courses, are less dispersive than lentic species, or those that occur in more ephemeral aquatic habitats. Thus, populations of lotic species will be more structured than those of lentic species. Stream courses include both flowing water and small, stagnant microhabitats that can provide refuge when streams are low. Many species occur in these microhabitats but remain poorly studied. Here, we present population genetic data for one such species, the tropical diving beetle Exocelina manokwariensis (Dytiscidae), sampled from six localities along a ~300 km transect across the Birds Head Peninsula of New Guinea. Molecular data from both mitochondrial (CO1 sequences) and nuclear (ddRAD loci) regions document fine-scale population structure across populations that are ~45 km apart. Our results are concordant with previous phylogenetic and macroecological studies that applied the habitat template concept to aquatic systems. This study also illustrates that these diverse but mostly overlooked microhabitats are promising study systems in freshwater ecology and evolutionary biology. With the advent of next-generation sequencing, fine-scale population genomic studies are feasible for small nonmodel organisms to help illuminate the effect of habitat stability on species’ natural history, population structure and geographic distribution.

UOW Authors


  •   Lam, Athena (external author)
  •   Gueuning, Morgan (external author)
  •   Kindler, Carolin (external author)
  •   Van Dam, Matthew (external author)
  •   Alvarez, Nadir (external author)
  •   Panjaitan, Rawati (external author)
  •   Shaverdo, Helena (external author)
  •   Lloyd White
  •   Roderick, George (external author)
  •   Balke, Michael (external author)

Publication Date


  • 2018

Citation


  • Lam, A. Wai., Gueuning, M., Kindler, C., Van Dam, M., Alvarez, N., Panjaitan, R., Shaverdo, H., White, L. T., Roderick, G. K. & Balke, M. (2018). Phylogeography and population genomics of a lotic water beetle across a complex tropical landscape. Molecular Ecology, 27 (16), 3346-3356.

Scopus Eid


  • 2-s2.0-85051707723

Number Of Pages


  • 10

Start Page


  • 3346

End Page


  • 3356

Volume


  • 27

Issue


  • 16

Place Of Publication


  • United Kingdom