5 Works

Prey-switching does not protect a generalist turtle from bioenergetic consequences when its preferred food is scarce

James Van Dyke, Kristen Petrov, Ricky-John Spencer, Natasha Malkiewicz, Jessica Lewis & Claudia Keitel
Background: Optimal foraging theory explains how animals make foraging decisions based on the availability, nutritional content, and handling times of different food types. Generalists solve this problem by consuming a variety of food types, and switch between them with relative ease. Specialists eat few food types, and may starve if those food types are not available. We integrated stable isotope analyses with previously-published stomach contents and environmental data to investigate how the foraging ecologies of...

Data from: Foraging by an avian ecosystem engineer extensively modifies the litter and soil layer in forest ecosystems

Alex Maisey, Angie Haslem, Steven Leonard & Andrew Bennett
Ecosystem engineers physically modify their environment, thereby altering habitats for other organisms. Increasingly, ‘engineers’ are recognised as an important focus for conservation and ecological restoration because their actions affect a range of ecosystem processes and thereby influence how ecosystems function. The superb lyrebird Menura novaehollandiae is proposed as an ecosystem engineer in forests of south-eastern Australia due to the volume of soil and litter it turns over when foraging. We measured the seasonal and spatial...

Long term environmental stability drives reduced stress tolerance in salt lake invertebrates

James O'Dwyer & Nicholas Murphy
The capacity of species to tolerate physical stressors is critical in a world of increasing environmental instability, however, past selective environments should dramatically impact on future stress tolerance, particularly in isolated populations. Through stabilising selection, long-term environmental stasis may reduce physiological tolerance, creating an evolutionary legacy where populations are less fit if environments change. Few empirical studies have investigated this evolutionary legacy of past selection, and of particular interest whether stabilising selection in a benign...

Experimental evidence for ecological cascades following threatened mammal reintroduction: Arachnids at Scotia Sanctuary, NSW, Australia

Heloise Gibb
Please see the abstract from the Ecology paper: Gibb, Heloise, Silvey, C.J., Robinson, C., L’Hotellier, F.A. & Eldridge, D.J. (accepted August 2020) Experimental evidence for ecological cascades following threatened mammal reintroduction. This dataset includes: foraging pits, scorpion burrows and spider abundances from mensurative, exclusion and disturbance experiments at Scotia Sanctuary.

How does prescribed fire shape bird and plant communities in a temperate dry forest ecosystem?

Frederick Rainsford
To mitigate the impact of severe wildfire on human society and the environment, prescribed fire is widely used in forest ecosystems to reduce fuel loads and limit fire spread. To avoid detrimental effects on conservation values, it is imperative to understand how prescribed fire affects taxa having a range of different adaptations to disturbance. Such studies will have greatest benefit if they extend beyond short-term impacts of burning. We used a field study to examine...

Registration Year

  • 2020
    5

Resource Types

  • Dataset
    5

Affiliations

  • La Trobe University
    5
  • Department of Primary Industries, Parks, Water and Environment
    1
  • University of Sydney
    1
  • Western Sydney University
    1