Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Systematics and evolution of the Australian subterranean hydroporine diving beetles (Dytiscidae), with notes on Carabhydrus|
Watts, C. H. S.
|Citation:||Invertebrate Systematics, 2008; 22(2):217-225|
|Publisher:||C S I R O Publishing|
|School/Discipline:||School of Earth and Environmental Sciences|
|Remko Leys and Chris H. Watts|
|Abstract:||Calcrete aquifers of the Yilgarn area of Western Australia and the Ngalia Basin, Northern Territory, Australia are known to contain a rich invertebrate stygofauna, including the world’s most diverse assemblage of subterranean diving beetles. Here we determine the generic relationships of these subterranean diving beetle species in the tribe Hydroporini and assess their evolutionary origins. Phylogenetic analyses of 1642 base pairs of mitochondrial DNA (mtDNA), comprising segments of CO1, 16S rRNA, tRNAleu and ND1 genes, revealed that the subterranean species from the arid zone, previously classified under the genus Nirripirti Watts & Humphreys (Hydroporini), are all closely related to the genus Paroster Sharp. We synonymise the stygobitic genus Nirripirti with the genus Paroster. Factors that may have been important for the transitions to stygobitic life such as historical and contemporary species distributions, reproductive ecology and body size are discussed. We show that pre-adaptations such as preference for temporary, but seasonally reliable, water and preference to live among gravel and sand along running water would have favoured transitions from surface to stygobitic life, but that large body size may have restricted the likelihood of successful transitions.|
|Description:||© CSIRO 2008|
|Appears in Collections:||Earth and Environmental Sciences publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.