5 Works

Data from: Creating new evolutionary pathways through bio-invasion: the population genetics of brushtail possums in New Zealand

Stephen D. Sarre, Nicola Aitken, Aaron T. Adamack, Anna J. MacDonald, Bernd Gruber & Phil Cowan
Rapid increases in global trade and human movement have created novel mixtures of organisms bringing with them the potential to rapidly accelerate the evolution of new forms. The common brushtail possum (Trichosurus vulpecula), introduced into New Zealand from Australia in the 19th Century, is one such species having been sourced from multiple populations in its native range. Here, we combine microsatellite DNA and GIS-based spatial data to show that T.vulpecula originating from at least two...

Data from: Global biodiversity assessment and hyper-cryptic species complexes: more than one species of elephant in the room?

Mark Adams, Tarmo A. Raadik, Christopher P. Burridge & Arthur Georges
Several recent estimates of global biodiversity have concluded that the total number of species on Earth lies near the lower end of the wide range touted in previous decades. However, none of these recent estimates formally explore the real ‘elephant in the room’, namely, what proportion of species are taxonomically invisible to conventional assessments, and thus, as undiagnosed cryptic species, remain uncountable until revealed by multi-gene molecular assessments. Here we explore the significance and extent...

Data from: Human-induced biotic invasions and changes in plankton interaction networks

Pavel Kratina, Ralph Mac Nally, James R. Thomson, Wim J. Kimmerer & Monika Winder
1.Pervasive and accelerating changes to ecosystems due to human activities remain major sources of uncertainty in predicting the structure and dynamics of ecological communities. Understanding which biotic interactions within natural multitrophic communities are threatened or augmented by invasions of non-native species in the context of other environmental pressures is needed for effective management. 2.We used multivariate autoregressive models with detailed time-series data from largely freshwater and brackish regions of the upper San Francisco Estuary to...

Data from: A multigene molecular assessment of cryptic biodiversity in the iconic freshwater blackfishes (Teleostei: Percichthyidae: Gadopsis) of south-eastern Australia

Michael P. Hammer, Peter J. Unmack, Mark Adams, Tarmo A. Raadik & Jerald B. Johnson
Freshwater biodiversity is under ever increasing threat from human activities, and its conservation and management require a sound knowledge of species-level taxonomy. Cryptic biodiversity is a common feature for aquatic systems, particularly in Australia, where recent genetic assessments suggest that the actual number of freshwater fish species may be considerably higher than currently listed. The freshwater blackfishes (genus Gadopsis) are an iconic group in south-eastern Australia and, in combination with their broad, naturally divided distribution...

Data from: Phylogeography of the Australian freshwater turtle Chelodina expansa reveals complex relationships among inland and coastal bioregions

Kate Hodges, Arthur Georges, Steve Donnellan & Stephen Donnellan
We examined range-wide mitochondrial phylogeographic structure in the riverine freshwater turtle Chelodina expansa to determine if this species exhibits deep genetic divergence between coastal and inland hydrological provinces as seen in co-distributed freshwater taxa. We sequenced two mitochondrial loci, genealogical relationships were assessed using a network approach, and relationships among biogeographic regions were tested using analyses of molecular variance. Population history was evaluated using neutrality tests, indices of demographic expansion, and mismatch analyses. Twenty one...

Registration Year

  • 2014
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Resource Types

  • Dataset
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Affiliations

  • University of Canberra
    5
  • South Australian Museum
    3
  • University of Adelaide
    2
  • University of California System
    1
  • University of Tasmania
    1
  • Queen Mary University of London
    1
  • Landcare Research
    1
  • Brigham Young University
    1
  • Stockholm University
    1
  • San Francisco State University
    1