7 Works

Data from: High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer

Simone K. A. Videsen, Lars Bejder, Mark Johnson & Peter T. Madsen
1. The migration of humpback whales to and from their breeding grounds results in a short, critical time period during which neonatal calves must acquire sufficient energy via suckling from their fasting mothers to survive the long return journey. 2. Understanding neonate suckling behaviour is critical for understanding the energetics and evolution of humpback whale migratory behaviour and for informing conservation efforts, but despite its importance, very little is known about the details, rate and...

Data from: Applying the multistate capture-recapture robust design to characterize metapopulation structure

Delphine Chabanne, Kenneth H. Pollock, Hugh Finn, Lars Bejder & Delphine B. H. Chabanne
1. Population structure must be considered when developing mark-recapture (MR) study designs as the sampling of individuals from multiple populations (or subpopulations) may increase heterogeneity in individual capture probability. Conversely, the use of an appropriate MR study design which accommodates heterogeneity associated with capture-occasion varying covariates due to animals moving between ‘states’ (i.e. geographic sites) can provide insight into how animals are distributed in a particular environment and the status and connectivity of subpopulations. 2....

Data from: Intrinsic factors drive spatial genetic variation in a highly vagile species, the wedge-tailed eagle (Aquila audax), in Tasmania

Christopher P. Kozakiewicz, Scott Carver, Jeremy J. Austin, Jill M. Shephard & Christopher P. Burridge
Knowledge of dispersal in a species, both its quantity and the factors influencing it, are crucial for our understanding of ecology and evolution, and for species conservation. Here we quantified and formally assessed the potential contribution of extrinsic factors on individual dispersal in the threatened Tasmanian population of wedge-tailed eagle, Aquila audax. As successful breeding by these individuals appears strongly related to habitat, we tested the effect of landscape around sampling sites on genetic diversity...

Data from: New species from Phytophthora Clade 6a: evidence for recent radiation

Treena I. Burgess, Agnes V. Simamora, Diane White, Briony Williams, Michelle Schwager, Michael J. C. Stukely, Giles Hardy, T.I. Burgess, B. Wiliams, G.E.St.J. Hardy & A.V. Simamora
During routine vegetation health surveys in the southwest of Western Australia (SWWA), several Phytophthora isolates with affinity to Clade 6a have been recovered. In this study, all known species from Clade 6a, P. inundata, P. humicola, P. gemini, P. ‘walnut’ and P. ‘personii’, and the new isolates were compared based on morphology and DNA sequence data from three nuclear genes and two mitochondrial genes resulting in the description of five new species, P. balyanboodja, P....

Data from: DNA metabarcoding for diet analysis and biodiversity: A case study using the endangered Australian sea lion (Neophoca cinerea)

Tina E. Berry, Sylvia K. Osterrieder, Dáithí C. Murray, Megan L. Coghlan, Anthony J. Richardson, Alicia K. Grealy, Michael Stat, Lars Bejder & Michael Bunce
The analysis of apex predator diet has the ability to deliver valuable insights into ecosystem health, and the potential impacts a predator might have on commercially relevant species. The Australian sea lion (Neophoca cinerea) is an endemic apex predator and one of the world's most endangered pinnipeds. Given that prey availability is vital to the survival of top predators, this study set out to understand what dietary information DNA metabarcoding could yield from 36 sea...

Data from: Demographic collapse and low genetic diversity of the Irrawaddy dolphin population inhabiting the Mekong River

Michael Krützen, Isabel Beasley, Corinne Y. Ackermann, Dietmar Lieckfeldt, Arne Ludwig, Gerard E. Ryan, Lars Bejder, Guido J. Parra, Rebekka Wolfensberger & Peter B. S. Spencer
In threatened wildlife populations, it is important to determine whether observed low genetic diversity may be due to recent anthropogenic pressure or the consequence of historic events. Historical size of the Irrawaddy dolphin (Orcaella brevirostris) population inhabiting the Mekong River is unknown and there is significant concern for long-term survival of the remaining population as a result of low abundance, slow reproduction rate, high neonatal mortality, and continuing anthropogenic threats. We investigated population structure and...

Data from: Genetic structure and signatures of selection in grey reef sharks (Carcharhinus amblyrhynchos)

Paolo Momigliano, Robert Harcourt, William D. Robbins, Vanessa Jaiteh, Gusti N. Mahardika, Andriuanus Sembiring & Adam Stow
With overfishing reducing the abundance of marine predators in multiple marine ecosystems, knowledge of genomic structure and local adaptation may provide valuable information to assist sustainable management. Despite recent technological advances, most studies on sharks have used small sets of neutral markers to describe their genetic structure. We used 5517 nuclear SNPs and a mtDNA gene to characterize patterns of genetic structure and detect signatures of selection in grey reef sharks (Carcharhinus amblyrhynchos). Using samples...

Registration Year

  • 2017
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Resource Types

  • Dataset
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Affiliations

  • Murdoch University
    7
  • Curtin University
    2
  • James Cook University
    2
  • University of Adelaide
    1
  • Aarhus University
    1
  • University of Melbourne
    1
  • Flinders University
    1
  • University of Tasmania
    1
  • Macquarie University
    1
  • University of Zurich
    1