5 Works

Data from: Persistence with episodic range expansion from the early Pleistocene: the distribution of genetic variation in the forest tree Corymbia calophylla (Myrtaceae) in south-western Australia

Jane Sampson, Sarah Tapper, David Coates, Maggie Hankinson, Shelley McArthur & Margaret Byrne
Phylogeographic patterns of trees in topographically subdued, unglaciated landscapes are under-reported, and might reflect population persistence and the influences of environment and distance over historical (~2.6Mya-present) and contemporary (recent generations) time-scales. We examined this hypothesis using genetic analyses of four slowly evolving non-coding chloroplast sequences and 16 nuclear microsatellites in the tree Corymbia calophylla from south-western Australia that has been unglaciated since the Permian (.300-250Mya). We found strong population differentiation for chloroplast DNA and low...

Data from: Limited influence of landscape on the genetic structure of three small mammals in a heterogeneous arid environment

Esther Levy, Margaret Byrne, Joel A. Huey, Mia J. Hillyer, Renee C. Firman & Kym M. Ottewell
Aim: The complexity and biologically challenging nature of arid landscapes can generate high inter- and intra-species diversity, although these biomes remain poorly studied. We investigated whether prominent geomorphic features in an Australian arid landscape had similar influences on patterns of intra-specific genetic diversity of three small mammals with different distribution and life history traits. Specifically, we tested (1) whether mountain ranges harbour high diversity and act as refugia, (2) the extent to which ephemeral river...

Data from: Predicting contemporary range-wide genomic variation using climatic, phylogeographic and morphological knowledge in an ancient, unglaciated landscape

Rachel M. Binks, Neil Gibson, Kym M. Ottewell, Bronwyn Macdonald & Margaret Byrne
Aim: Understanding the spatial distribution of genetic variation across a species’ range is a central tenet in evolutionary biology and the ability to predict such patterns is valuable to conservation management. Genetic diversity and differentiation may be explained by present-day niche centrality, historical processes, or morphological variation across a species’ range, yet few studies evaluate these factors concurrently. Moreover, there is a particular lack of knowledge of the influence of these factors in ancient, unglaciated...

Data from: Habitat discontinuities form strong barriers to gene flow among mangrove populations, despite the capacity for long distance dispersal

Rachel M. Binks, Margaret Byrne, Kathryn McMahon, Georgina Pitt, Kathy Murray & Richard D. Evans
Aim Mangrove forests are among the world’s most important ecosystems but are declining rapidly worldwide. Effective conservation management requires a better understanding of the patterns and drivers of gene flow across a range of spatial scales. Despite the capacity for long distance propagule dispersal, field studies suggest that mangrove propagules tend not to disperse far from the release point, which has important implications for the impact of habitat discontinuities on gene flow. We use a...

Data from: A seascape genetic analysis of a stress-tolerant coral species along the Western Australian coast

Richard D. Evans, Nicole M. Ryan, Michael J. Travers, Ming Feng, Yvette Hitchen & W. Jason Kennington
Genetic diversity and connectivity are key factors in determining a population’s resilience to future disturbance. This is especially relevant to corals, which are in global decline due to increasing frequency and strength of thermal anomalies and severe tropical cyclones. While many studies have investigated genetic diversity and population structure in corals, they focused on species being removed at the greatest rate from coral reefs, Acroporids and Pocilloporids, and it is unclear whether the patterns observed...

Registration Year

  • 2018
    5

Resource Types

  • Dataset
    5

Affiliations

  • Department of Parks and Wildlife
    5
  • University of Western Australia
    3
  • Western Australian Museum
    1
  • Department of Primary Industries and Regional Development
    1
  • Commonwealth Scientific and Industrial Research Organisation
    1
  • Edith Cowan University
    1