Login | Request Account (DAF staff only)

Biogeographic influences on the evolution and historical dispersal of the Australo-Pacific Dacini fruit flies (Tephritidae: Dacinae)

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Starkie, M. L., Cameron, S. L., Krosch, M. N., Sweet, A. D. and Clarke, A. R. (2024) Biogeographic influences on the evolution and historical dispersal of the Australo-Pacific Dacini fruit flies (Tephritidae: Dacinae). Zoologica Scripta, 53 (1). pp. 87-97. ISSN 0300-3256


Article Link: https://doi.org/10.1111/zsc.12631

Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1111/zsc.12631


Fruit flies (Tephritidae: Dacini) are a frugivorous insect group that exhibit high endemic diversity in the rainforests of Australia and the western Pacific. In this region, biogeography has been influenced by tectonic plate movements and cycles of isolation and re-connection of landmasses and rainforest habitats during glacial periods. However, how such factors have influenced the speciation and historical dispersal of the regional Dacini is largely unknown. To address this, we use a dated phylogeny to reconstruct the biogeographical history of the tribe. We found the Dacini radiated eastward into the Pacific islands largely from sources in New Guinea. We also found evidence for historical dispersal from both Australia and New Guinea into New Caledonia, a pathway unique to this island compared with neighbouring islands. There was also evidence for multiple, bidirectional dispersal events between Papua New Guinea and Australia, likely facilitated by the cyclically exposed Torres Strait land bridge. Cape York in far northern Australia was likely the only entry point for species dispersing into Australia; there was no evidence for entry of flies into Australia directly from West Papua or Wallacea. Several lineages radiated after entering Australia, such as members of the Bactrocera dorsalis species group. Within Australia, speciation was not associated with the biogeographic barriers known to have impacted other rainforest fauna in eastern Australia. Overall, we demonstrate that isolation between islands and large landmasses is important in the evolution of the Australo-Pacific Dacini, but the reason for their extensive radiation within Australia and Papua New Guinea remains unclear.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Biosecurity Queensland
Subjects:Science > Entomology
Plant culture > Fruit and fruit culture
Plant pests and diseases
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Agriculture > By region or country > Australia > Queensland
Live Archive:19 Sep 2023 23:09
Last Modified:10 Jan 2024 02:45

Repository Staff Only: item control page


Downloads per month over past year

View more statistics