Dataset for: Warmer ambient temperatures reduce protein intake by a mammalian folivore
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The interplay between ambient temperature and nutrition in wild herbivores is frequently overlooked, despite the fundamental importance of food. We tested whether different ambient temperatures (10ËC, 18ËC, and 26ËC) influenced the intake of protein by a marsupial herbivore, the common brushtail possum (Trichosurus vulpecula). At each temperature, possums were offered a choice of two foods containing different amounts of protein (57% vs 8%) for one week. Animals mixed a diet with a lower proportion of protein to non-protein (P:NP, 0.20) when held at 26ËC compared to that at both 10ËC and 18ËC (0.22). Since detoxification of plant secondary metabolites imposes a protein cost on animals, we then studied whether addition of the monoterpene 1,8-cineole to the food changed the effect of ambient temperature (10ËC and 26ËC) on food choice. Cineole reduced food intake but also removed the effect of temperature on P:NP ratio and instead animals opted for a diet with higher P:NP (0.19 with cineol..., These data were collected using twelve adult male common brushtail possums (Trichosurus vulpecula) which were caught in wire cage traps on the Australian National University campus (Canberra, 35.2809° S, 149.1300° E) in November 2016. The possums were housed inside constant temperature rooms (at 10, 18, or 26 °C ± 2°C) with a 12:12 h light cycle and offered artificial diets prepared daily (composition is described in the uploaded dataset). Food was offered at 1630 h and refusals were collected at 0900 h daily. Dry matter intake (DMI) of the two diets was measured by drying a subsample of the food offered at 80 °C and subtracting the dry mass of all food refusals. In addition, we calculated the daily grams of protein (P) and ânon-proteinâ (NP; sum of fats and non-structural carbohydrates) ingested across 7 days for each possum for each temperature. Possums were weighed weekly.Â
The first experiment tested whether possums balanced macronutrients differently depending on the ambient temper..., , # Macronutrient\_Temperature Experiments
1. Title of Dataset: Warmer ambient temperatures reduce protein intake by a mammalian folivore
[Access this dataset on Dryad](https://doi.org/10.5061/dryad.ttdz08m47)
2. Principal investigator:
Phillipa K Beale
Australian National University
phillipa.beale@gmail.com
Co-authors: Ben D Moore, William J Foley, Karen J Marsh
## Summary of dataset collection:
These data were collected using twelve adult male common brushtail possums (*Trichosurus* *vulpecula*) which were caught on the Australian National University campus (Canberra, 35.2809° S, 149.1300° E) in November 2016.
The possums were housed inside constant temperature rooms (at 10, 18, or 26 °C ± 2°C) with a 12:12 h light cycle and offered artificial diets prepared daily (composition is described in the uploaded dataset). Food was offered at 1630 h and refusals were collected at 0900 h daily. Dry matter intake (DMI) of the two diets was measured by drying a subsample of the ...
创建时间:
2025-07-17



