Evidence map›Paper›PMID 34709430›Full record

ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2021

Seeing the world through the eyes of a butterfly: visual ecology of the territorial males of Pararge aegeria (Lepidoptera: Nymphalidae).

Martin Bergman, Jochen Smolka, Dan-Eric Nilsson, Almut Kelber

Open access · hybridAbstract read
In one paragraph

Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. Graded opsin co-expression along the butterfly retina fine tunes the spectral sensitivity of a colour-opponent cell across the visual field.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Article
  4. Article
  5. Views from 'crabworld': the spatial distribution of light in a tropical mudflat.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2023
    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 at 1 institution in 1 country.

Martin BergmanLund Vision Group, Department of Biology, Lund University, Sölvegatan 35, 223 62, Lund, Sweden.
Jochen SmolkaLund Vision Group, Department of Biology, Lund University, Sölvegatan 35, 223 62, Lund, Sweden.
Dan-Eric NilssonLund Vision Group, Department of Biology, Lund University, Sölvegatan 35, 223 62, Lund, Sweden.
Almut KelberLund Vision Group, Department of Biology, Lund University, Sölvegatan 35, 223 62, Lund, Sweden. almut.kelber@biol.lu.se.ORCID 0000-0003-3937-2808
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Combining studies of animal visual systems with exact imaging of their visual environment can get us a step closer to understand how animals see their "Umwelt". Here, we have combined both methods to better understand how males of the speckled wood butterfly, Pararge aegeria, see the surroundings of their perches. These males are well known to sit and wait for a chance to mate with a passing females, in sunspot territories in European forests. We provide a detailed description of the males' body and head posture, viewing direction, visual field and spatial resolution, as well as the visual environment. Pararge aegeria has sexually dimorphic eyes, the smallest interommatidial angles of males are around 1°, those of females 1.5°. Perching males face the antisolar direction with their retinal region of the highest resolution pointing at an angle of about 45° above the horizon; thus, looking at a rather even and dark background in front of which they likely have the best chance to detect a sunlit female passing through the sunspot.

Indexed as

TerritorialityAnimalsButterfliesEcological and Environmental PhenomenaEyeFemaleLepidopteraMaleOrientationSwedenVision, OcularVisual FieldsLepidopteraMate detectionSpatial resolutionVisual ecologyVisual environment

Identifiers

PMID34709430
PMCPMC8568875
OpenAlexW3209999449

What OpenQuestion holds

Textmetadata
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.