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Increases in invertebrate abundance and shifts in assemblage composition following rodent eradication on Lord Howe IslandNARA Subscribed
Invasive rodents represent one of the most serious threats to island ecosystems, affecting a wide range of native plants, vertebrates and invertebrates. While nearly ubiquitous on human-modified islands, the last four decades have seen the advent of targeted rodent eradications, which have generally resulted in positive impacts for biodiversity. Invertebrates, which are crucial to the functioning of island ecosystems, are know...
Considerable gene flow in troglomorphic cockroach species across a vast subterranean landscapeNARA Subscribed
Aim There has been growing interest in non‐cave subterranean habitats and their influence on the evolution of troglomorphic (i.e. ‘subterranean adapted’) species. Studies on the diversification of aquatic subterranean organisms in these habitats generally support the ‘subterranean island’ hypothesis, whereby isolated subterranean refuges lead to patterns of short‐range endemism. However, their terrestrial counterparts have rec...
Midichloria spp. are intracellular bacterial symbionts of ticks. Representatives of this genus colonise mitochondria in the cells of their hosts. To shed light on this unique interaction we evaluated the presence of an intramitochondrial localization for three Midichloria in the respective tick host species and generated eight high‐quality draft genomes and one closed genome, showing that this trait is non‐monophyletic, either...
The Toxicology Investigators Consortium 2022 Annual ReportNARA Subscribed
The geographic distributions of marine fishes have been shaped by ancient vicariance and ongoing dispersal events. Some species exhibit anti‐equatorial distributions, inhabiting temperate regions on both sides of the tropics while being absent from equatorial latitudes. The perciform fish Microcanthus strigatus (the stripey) exhibits such a distribution with disjunct populations occurring in East Asia, Hawaii, Western Australi...
Two speed invasion: assisted and intrinsic dispersal of common mynas over 150 years of colonizationNARA Subscribed
Aim Despite the common myna's widespread distribution, and the significant impact it has caused in parts of its non‐native range, there have been no comprehensive genomic studies of its invasion of any region. We aimed to characterize the common myna invasion of the Australian continent to understand its population genetic landscape, introduction history, dispersal characteristics, and the interconnectedness between different...
Multiple abiotic factors correlate with parallel evolution in Australian soil burrowing cockroachesNARA Subscribed
Aim The ways in which abiotic factors contribute to parallel evolution—the evolution of similar, derived phenotypes in independent, closely related lineages—remain understudied. Australian cockroaches of the subfamilies Panesthiinae (“wood feeders”) and Geoscapheinae (“soil burrowers”) are two closely related groups that provide a striking example of parallel evolution of burrowing behaviour. The ancestral wood‐feeding panesth...
Ecological diversification of the Australian Coptotermes termites and the evolution of mound buildingNARA Subscribed
Aim The Australian Coptotermes (Family: Rhinotermitidae) are a small monophyletic group of termites, some of which build mounds. In this study, we construct predicted distributions based on environmental data (niche models) for all Australian species of Coptotermes to test whether specific environmental factors have contributed to the evolution of mound‐building behaviour and whether the degree of niche similarity and degree o...
Major alteration of the expression site of endogenous cellulases in members of an apical termite lineageNARA Subscribed
Termites are among the most important cellulose‐digesting animals on earth, and are well‐known for the symbiotic relationship they have with cellulolytic trichomonad and oxymonad flagellates (unicellular eukaryotes). Perhaps less well‐known is the fact that ∼75% of the ∼2600 described termite species — those belonging to the family Termitidae — do not harbour such flagellates. Unlike most termites from other families, the majo...
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