6 Works

Data from: Nematode parasite diversity in birds: the role of host ecology, life history and migration

Tommy L. F. Leung & Janet Koprivnikar
Previous studies have found that migratory birds generally have a more diverse array of pathogens such as parasites, as well as higher intensities of infection. However, it is not clear whether this is driven by the metabolic and physiological demands of migration, differential selection on host life-history traits or basic ecological differences between migratory and non-migratory species. Parasitic helminths can cause significant pathology in their hosts, and many are trophically transmitted such that host diet...

Data from: Adaptive and neutral markers both show continent-wide population structure of mountain pine beetle (Dendroctonus ponderosae)

Philip D. Batista, Jasmine K. Janes, Celia K. Boone, Brent W. Murray & Felix A. H. Sperling
Assessments of population genetic structure and demographic history have traditionally been based on neutral markers while explicitly excluding adaptive markers. In this study, we compared the utility of putatively adaptive and neutral single-nucleotide polymorphisms (SNPs) for inferring mountain pine beetle population structure across its geographic range. Both adaptive and neutral SNPs, and their combination, allowed range-wide structure to be distinguished and delimited a population that has recently undergone range expansion across northern British Columbia and...

Data from: Cool echidnas survive the fire

Julia Nowack, Christine Cooper, Fritz Geiser & Christine Elizabeth Cooper
Fires have occurred throughout history, including those associated with the meteoroid impact at the Cretaceous-Palaeogene (K-Pg) boundary that eliminated many vertebrate species. To evaluate the recent hypothesis that the survival of the K-Pg fires by ancestral mammals was dependent on their ability to use energy-conserving torpor, we studied body temperature fluctuations and activity of an egg-laying mammal, the echidna (Tachyglossus aculeatus), often considered to be a ‘living fossil’, before, during and after a prescribed burn....

Data from: Multiple reproductive barriers separate recently diverged sunflower ecotypes

Katherine L. Ostevik, Rose L. Andrew, Sarah P. Otto & Loren H. Rieseberg
Measuring reproductive barriers between groups of organisms is an effective way to determine the traits and mechanisms that impede gene flow. However, to understand the ecological and evolutionary factors that drive speciation, it is important to distinguish between the barriers that arise early in the speciation process and those that arise after speciation is largely complete. In this paper we comprehensively test for reproductive isolation between recently diverged (< 10,000 years bp) dune and non-dune...

Data from: Do grazing intensity and herbivore type affect soil health? Insights from a semi-arid productivity gradient

David J. Eldridge, Manuel Delgado-Baquerizo, Samantha K. Travers, James Val, Ian Oliver & David Eldridge
Grazing is one of the most widespread forms of intensive management on Earth and is linked to reductions in soil health. However, little is known about the relative influence of herbivore type, herbivore intensity and site productivity on soil health. This lack of knowledge reduces our capacity to manage landscapes where grazing is a major land use. We used structural equation modelling to assess the effects of recent (cattle, sheep, goats, kangaroos and rabbit dung)...

Data from: Group foraging decisions in nutritionally differentiated environments

Matthew J. Hansen, Timothy M. Schaerf, Stephen J. Simpson & Ashley J. W. Ward
Foraging behaviour must be flexible enough to adapt to heterogeneities in the distribution and quality of food resources. Accurate models of optimal foraging behaviour should acknowledge the extent to which animals can detect and regulate their intake of food based on smaller scale differences in food types. In particular, consideration of macro-nutrient distribution and how animals perceive this is limited in studies of optimal foraging, particularly in vertebrates and for animals that forage in groups....

Registration Year

  • 2016
    6

Resource Types

  • Dataset
    6

Affiliations

  • University of New England
    6
  • University of New England
    2
  • NSW Office of Environment & Heritage
    1
  • University of Alberta
    1
  • Université Libre de Bruxelles
    1
  • University of Northern British Columbia
    1
  • Indiana University Bloomington
    1
  • Curtin University
    1
  • University of Sydney
    1
  • UNSW Sydney
    1