Evidence map›Paper›PMID 26633602›Full record

ArticleScientific reports2015

Hibernation in the pygmy slow loris (Nycticebus pygmaeus): multiday torpor in primates is not restricted to Madagascar.

Thomas Ruf, Ulrike Streicher, Gabrielle L Stalder, Tilo Nadler, Chris Walzer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
9.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Article
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  4. Review
  5. Seasonal patterns of body temperature in response to experimental photoperiod variation in a non-hibernating ground squirrel.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2023
    Article
  6. Article
  7. Functional genomics analysis reveals the evolutionary adaptation and demographic history of pygmy lorises.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Survivable hypothermia or torpor in a wild-living rat: rare insights broaden our understanding of endothermic physiology.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2022
    Article
  9. Article
  10. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 3 countries.

Thomas RufDepartment of Integrative Biology and Evolution, Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria.
Ulrike StreicherEndangered Primate Rescue Center, Cúc Phương, Ninh Bình, Vietnam.
Gabrielle L StalderDepartment of Integrative Biology and Evolution, Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria.
Tilo NadlerEndangered Primate Rescue Center, Cúc Phương, Ninh Bình, Vietnam.
Chris WalzerDepartment of Integrative Biology and Evolution, Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria.
University of Veterinary Medicine Vienna · ATCat Tien National Park · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hibernation and short daily torpor are states of energy conservation with reduced metabolism and body temperature. Both hibernation, also called multiday torpor, and daily torpor are common among mammals and occur in at least 11 orders. Within the primates, there is a peculiar situation, because to date torpor has been almost exclusively reported for Malagasy lemurs. The single exception is the African lesser bushbaby, which is capable of daily torpor, but uses it only under extremely adverse conditions. For true hibernation, the geographical restriction was absolute. No primate outside of Madagascar was previously known to hibernate. Since hibernation is commonly viewed as an ancient, plesiomorphic trait, theoretically this could mean that hibernation as an overwintering strategy was lost in all other primates in mainland Africa, Asia, and the Americas. However, we hypothesized that a good candidate species for the use of hibernation, outside of Madagascar should be the pygmy slow loris (Nycticebus pygmaeus), a small primate inhabiting tropical forests. Here, we show that pygmy slow lorises exposed to natural climatic conditions in northern Vietnam during winter indeed undergo torpor lasting up to 63 h, that is, hibernation. Thus, hibernation has been retained in at least one primate outside of Madagascar.

Indexed as

AnimalsBody Temperature RegulationEnergy MetabolismHibernationLemurLorisidaeMadagascarSeasonsTorpor

Identifiers

PMID26633602
PMCPMC4668838
OpenAlexW2187951670

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.