Evidence map›Paper›PMID 20154187›Full record

ArticleThe Journal of experimental biology2010

Allometry of hummingbird lifting performance.

D L Altshuler, R Dudley, S M Heredia, J A McGuire

Abstract read
In one paragraph

Article in The Journal of experimental biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Article
  2. The spatiotemporal richness of hummingbird wing deformations.The Journal of experimental biology · 2024
    Article
  3. Article
  4. Domestic egg-laying hens,Royal Society open science · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Into rude air: hummingbird flight performance in variable aerial environments.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  12. Evolution of avian flight: muscles and constraints on performance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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.

D L AltshulerDepartment of Biology, University of California, Riverside, CA 92521, USA. douga@ucr.edu
R Dudley
S M Heredia
J A McGuire

Funding

Neuromuscular control of flightF32NS046221 · NINDS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI ALTSHULER, DOUGLAS L · 2003 to 2005
$140k
NINDS NIH HHS F32 NS046221NINDS NIH HHS F32 NS46221
6 · The paper itself

Abstract

Vertical lifting performance in 67 hummingbird species was studied across a 4000 m elevational gradient. We used the technique of asymptotic load-lifting to elicit maximum sustained muscle power output during loaded hovering flight. Our analysis incorporated direct measurements of maximum sustained load and simultaneous wingbeat kinematics, together with aerodynamic estimates of mass-specific mechanical power output, all within a robust phylogenetic framework for the Trochilidae. We evaluated key statistical factors relevant to estimating slopes for allometric relationships by performing analyses with and without phylogenetic information, and incorporating species-specific measurement error. We further examined allometric relationships at different elevations because this gradient represents a natural experiment for studying physical challenges to animal flight mechanics. Maximum lifting capacity (i.e. vertical force production) declined with elevation, but was either isometric or negatively allometric with respect to both body and muscle mass, depending on elevational occurrence of the corresponding taxa. Maximum relative muscle power output exhibited a negative allometry with respect to muscle mass, supporting theoretical predictions from muscle mechanics.

Indexed as

AnimalsBiomechanical PhenomenaBirdsBody WeightFlight, AnimalOrgan SizeWings, Animal

Identifiers

PMID20154187
PMCPMC2821213

What OpenQuestion holds

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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.