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Phylogeny and population genetic structure of the ant genus Acropyga (Hymenoptera : Formicidae) in Papua New Guinea
- Source :
- Invertebrate Systematics. 30:28
- Publication Year :
- 2016
- Publisher :
- CSIRO Publishing, 2016.
-
Abstract
- Spatial isolation and geological history are important factors in the diversification and population differentiation of species. Here we describe distributional patterns of ants in the genus Acropyga across Papua New Guinea (PNG), a highly biodiverse but little-studied region. We estimate phylogenetic relationships among currently recognised species of Acropyga and assess population genetic structure of the widespread species, A. acutiventris, across lowland areas of the island. We find that species of Acropyga present in PNG diversified during the Pliocene, between six and two million years ago. Most species now exhibit a patchy distribution that does not show a strong signal of geological history. However, the population genetic structure of the widespread species A. acutiventris has been influenced by geography, habitat association and, possibly, historical habitat fragmentation. There is a significant effect of isolation-by-distance within continuous lowland forest, and proximity to Australia has had a larger impact in structuring populations of A. acutiventris in PNG than has the Central Papuan Cordillera. This study is the first to describe population genetic patterns of an ant species in Papua New Guinea.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Systematics
education.field_of_study
Habitat fragmentation
biology
Ecology
Biogeography
Population
Biodiversity
Zoology
PhyloCode
biology.organism_classification
010603 evolutionary biology
01 natural sciences
Acropyga
03 medical and health sciences
030104 developmental biology
parasitic diseases
Genetic structure
education
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 14455226
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Invertebrate Systematics
- Accession number :
- edsair.doi...........55ef0cb66eb277b89e32869f29f7d04f
- Full Text :
- https://doi.org/10.1071/is14050