TY - BOOK
T1 - Hyperomma of New Zealand (Coleoptera: Staphylinidae: Paederinae)
T2 - Systematics, Phylogeny, Historical Biogeography
AU - Schomann, Andrea Maria
PY - 2014
Y1 - 2014
N2 - In this project a classical taxonomical revision of the New Zealand species of Hyperomma was conducted, as well as a broader molecular phylogenetic study revolving around this flightless genus, which occurs in Australia and New Zealand only. Seventeen new species were described, two new synonymies found, 8 known species re-described after contemporary standards, and a species inventory with keys to those 25 species and the paederine genera occurring in New Zealand was produced. The genus was placed in the phylogenetic context of its subfamily, Paederinae, for which a robust phylogenetic hypothesis was inferred based on a 5-gene dataset. This resulted in placement of Hyperomma in the "Dicax group", but also discovered the necessity to restructure the subfamily quite radically. Finally, the divergence time of the species of Hyperomma occurring in New Zealand from those occurring in Australia was investigated by using a time-calibrated relaxed molecular clock with fossil calibration points. The results showed, that New Zealand was colonised by Hyperomma at least two times independently, once about 43–68 ma (possibly while still connected to Gondwana) and at least once ca. 28.5–47 ma (most probable a transoceanic dispersal). This implies that Hyperomma in New Zealand must have survived the “Oligocene drowning event”, the view of the latter as a complete submergence of land is not corroborated. Exact means of the early, post-Gondwanic colonisation of New Zealand by Hyperomma, however, remain unclear. Additionally, the extinct Cretaceous staphylinid genus Apticax was described connected with a short review on fossil Paederinae and closely related fossils.
AB - In this project a classical taxonomical revision of the New Zealand species of Hyperomma was conducted, as well as a broader molecular phylogenetic study revolving around this flightless genus, which occurs in Australia and New Zealand only. Seventeen new species were described, two new synonymies found, 8 known species re-described after contemporary standards, and a species inventory with keys to those 25 species and the paederine genera occurring in New Zealand was produced. The genus was placed in the phylogenetic context of its subfamily, Paederinae, for which a robust phylogenetic hypothesis was inferred based on a 5-gene dataset. This resulted in placement of Hyperomma in the "Dicax group", but also discovered the necessity to restructure the subfamily quite radically. Finally, the divergence time of the species of Hyperomma occurring in New Zealand from those occurring in Australia was investigated by using a time-calibrated relaxed molecular clock with fossil calibration points. The results showed, that New Zealand was colonised by Hyperomma at least two times independently, once about 43–68 ma (possibly while still connected to Gondwana) and at least once ca. 28.5–47 ma (most probable a transoceanic dispersal). This implies that Hyperomma in New Zealand must have survived the “Oligocene drowning event”, the view of the latter as a complete submergence of land is not corroborated. Exact means of the early, post-Gondwanic colonisation of New Zealand by Hyperomma, however, remain unclear. Additionally, the extinct Cretaceous staphylinid genus Apticax was described connected with a short review on fossil Paederinae and closely related fossils.
UR - https://rex.kb.dk/primo-explore/fulldisplay?docid=KGL01008977064&context=L&vid=NUI&search_scope=KGL&isFrbr=true&tab=default_tab&lang=da_DK
M3 - Ph.D. thesis
BT - Hyperomma of New Zealand (Coleoptera: Staphylinidae: Paederinae)
PB - Natural History Museum of Denmark, Faculty of Science, University of Copenhagen
ER -