Evidence map›Paper›PMID 32486941›Full record

ArticleBiology letters2020

Predictability of food supply modulates nocturnal hypothermia in a small passerine.

Johan F Nilsson, Jan-Åke Nilsson, Juli Broggi, Hannah Watson

Abstract read
In one paragraph

Article in Biology letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Coping with the cold: black-capped chickadees (Poecile atricapillus) use rapid facultative hypothermia to reduce fat loss overnight.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Plasticity of mitochondrial function safeguards phosphorylating respiration during in vitro simulation of rest-phase hypothermia.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2023
    Article
  7. Determinants of heart rate in Svalbard reindeer reveal mechanisms of seasonal energy management.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  8. Article
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

4 authors.

Johan F NilssonEvolutionary Ecology, Lund University, SE-223 62, Sweden.
Jan-Åke NilssonEvolutionary Ecology, Lund University, SE-223 62, Sweden.
Juli BroggiEvolutionary Ecology, Lund University, SE-223 62, Sweden.
Hannah WatsonEvolutionary Ecology, Lund University, SE-223 62, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The combination of short days and long cold winter nights, in temperate regions, presents a major challenge for small diurnal birds. Small birds regularly employ heterothermy and enter rest-phase hypothermia during winter nights to conserve energy. However, we know little about how environmental conditions, such as food availability, shape these strategies. We experimentally manipulated food availability in winter to free-living great tits

Indexed as

HypothermiaPasseriformesAnimalsBody Temperature RegulationCold TemperatureFemaleFood SupplyMaleSeasonsbirdsbody temperatureenergeticsfood supplyhypothermiathermoregulation

Identifiers

PMID32486941
PMCPMC7336851

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.