From sifting topsoil for native truffles to cracking open the hard shells of seeds and nuts to munching on the tasty kernels, Australia's beetongs and putoros enjoy a two-way connection between their wealthy weight loss plan and environmental health. Described as 'ecosystem engineers'.
However, with local ecosystems and putrid marsupial numbers in decline, ecologists and evolutionists led by Flinders University are working to know how difficult it's to reap the foods these top foragers seek. .
Dr Rex Mitchell, a research associate at Flinders University's College of Science and Engineering, explains that this information might be used to evaluate conservation or survivability in recent reservoirs, or to formulate captive diets.
“Reviving the populations and distribution of batongs and putoro is really important to maintaining biodiversity and healthy ecosystems in Australia,” says Dr Rex Mitchell in a recent article.
“Crucial to these conservation efforts is a clear understanding of the hardiness and stringency of putrid diets from different habitats, and comparing them to farmed diets or dietary supplements commonly used in captivity.”
Australia's puturoid marsupials have developed a wealthy digestive preference, subsisting on a varied menu of nutritious and simply digestible wild foods, including roots and tubers, fruits, fungi, seeds, leaves, and even small animals and insects. are also included. Digging these dishes mixes plants and nutrients into the soil, spreads seeds and fungi across the landscape, and regenerates plants.
All this makes them invaluable partners in ecosystem functioning.
Fieldwork was undertaken within the New England region of NSW and the Simpson Desert in South Australia to measure the mechanical properties of the putoro and betong diets, as possible alternatives to their commercially available diets. or comparable to additional food sources.
“An interesting behavior of puteroids such as Wylie () and Brongbetong () was that they could break through the highly resistant shells of sandalwood and quandong seeds to gain access to the kernels inside,” says Dr Mitchell. says Dr. Mitchell, who tested the force required to interrupt. Open the shells.
Some of those require direct forces above 1000 newtons (or about 100 kg) to interrupt with testing machinery within the lab.
“But batongs have very small jaws, which makes this feat even more remarkable,” says Dr Mitchell.
“This suggests that dried seed shells are less rigid but tougher than fresh ones, making them easier to open. This would explain why betongs often store seeds. to break up later.”
New knowledge concerning the mechanical properties of native animal feeds and comparable farm diets will proceed to tell the event of higher captive breeding systems and feed formulations, the researchers say.
The research tested cultivated foods resembling industrial nuts, mushrooms, potatoes, dried and fresh fruits – in addition to wild foods that puteroids eat within the wild.
“Mechanical Properties of Betong and Putoro Foods” (2024) by D. Rex Mitchell, Justin A. Ledogger, Damian Andrews, Ian Mathewson, Vera Weisbecker and Karl Vernis is published within the journal (published by CSIRO, Australia) (Mammal Society).
Confession: This project was supported by the Australian Research Council Center of Excellence for Australian Biodiversity and Heritage (CABAH).