ArticleDie Naturwissenschaften2013
Torpor in the Patagonian opossum (Lestodelphys halli): implications for the evolution of daily torpor and hibernation.
Article in Die Naturwissenschaften, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 31 citations in OpenAlex.
- Neurobehavioral Consequences of the 5'-AMP-Induced Torpor-like Hypothermic State.Life (Basel, Switzerland) · 2026Article
- Torpor expression and patterns in 3 sympatric rodents from Inner Mongolia.Current zoology · 2025Article
- Optimal sampling interval for characterisation of the circadian rhythm of body temperature in homeothermic animals using periodogram and cosinor analysis.Ecology and evolution · 2024Article
- Rare and Opportunistic Use of Torpor in Mammals-An Echo from the Past?Integrative and comparative biology · 2023Article
- Hypothalamic orexinergic neuron changes during the hibernation of the Syrian hamster.Frontiers in neuroanatomy · 2022Article
- Heterothermy as the Norm, Homeothermy as the Exception: Variable Torpor Patterns in the South American Marsupial Monito del Monte (Frontiers in physiology · 2021Article
- The Torpid State: Recent Advances in Metabolic Adaptations and Protective MechanismsFrontiers in physiology · 2020Review
- Individual variation of daily torpor and body mass change during winter in the large Japanese field mouse (Apodemus speciosus).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2018Article
- Marsupials don't adjust their thermal energetics for life in an alpine environment.Temperature (Austin, Tex.) · 2016Article
- Changes in the Golgi Apparatus of Neocortical and Hippocampal Neurons in the Hibernating Hamster.Frontiers in neuroanatomy · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hibernation and daily torpor are two distinct forms of torpor, and although they are related, it is not known how and in which sequence they evolved. As the pattern of torpor expressed by the oldest marsupial order the opossums (Didelphimorphia) may provide insights into the evolution of torpor, we aimed to provide the first quantitative data on the thermal biology and torpor expression of the rare Patagonian opossum (Lestodelphys halli). It is the opossum with the southernmost distribution, has a propensity of autumnal fattening, and therefore, is likely to hibernate. We captured two male Lestodelphys, which while in captivity displayed strong daily fluctuations of body temperatures (Tb) measured with implanted miniature data loggers even when they remained normothermic. In autumn and early winter, torpor was expressed occasionally when food was available, but cold exposure and food withdrawal increased torpor use. The mean Tb throughout the study was 32.2 ± 1.4 °C, the minimum Tb measured in torpid Lestodelphys was 7.7 °C, average torpor bout duration was 10.3 h, and the maximum torpor bout duration was 42.5 h. Thus, the pattern of torpor expressed by Lestodelphys was intermediate between that of daily heterotherms and hibernators suggesting that it may represent an ancestral opportunistic torpor pattern from which the derived patterns of daily torpor and seasonal hibernation diverged.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.