Evidence map›Paper›PMID 31867122›Full record

ArticleEvolution letters2019

The "Law of Brevity" in animal communication: Sex-specific signaling optimization is determined by call amplitude rather than duration.

Vlad Demartsev, Naomi Gordon, Adi Barocas, Einat Bar-Ziv, Tchia Ilany, Yael Goll, Amiyaal Ilany, Eli Geffen

Open access · goldAbstract read
In one paragraph

Article in Evolution letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 26 citations in OpenAlex.

  1. Does Zipf's law of abbreviation shape birdsong?PLoS computational biology · 2025
    Article
  2. Vocal efficiency in crows.Animal cognition · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Linguistic laws in biology.Trends in ecology & evolution · 2022
    Review
  7. Article
  8. Article
  9. 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

8 authors at 4 institutions in 4 countries.

Vlad DemartsevDepartment of Biology University of Konstanz Konstanz 78464 Germany.
Naomi GordonSchool of Zoology Tel Aviv University Tel Aviv 6997801 Israel.
Adi BarocasSan Diego Zoo's Institute for Conservation Research Escondido California 92027.
Einat Bar-ZivMitrani Department of Desert Ecology Ben-Gurion University Midreshet Ben-Gurion 8499000 Israel.
Tchia IlanyRembrandt 11 Street Tel Aviv 64045 Israel.
Yael GollSchool of Zoology Tel Aviv University Tel Aviv 6997801 Israel.
Amiyaal IlanyFaculty of Life Sciences Bar-Ilan University Ramat-Gan 5290002 Israel.ORCID https://orcid.org/0000-0001-8089-569X
Eli GeffenSchool of Zoology Tel Aviv University Tel Aviv 6997801 Israel.
Tel Aviv University · ILBar-Ilan University · ILBen-Gurion University of the Negev · ILUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficiency of informational transfer is one of the key aspects of any communication system. The informational coding economy of human languages is often demonstrated by their almost universal fit to Zipf's "Law of Brevity," expressing negative relationship between word length and its usage frequency. Animal vocal systems, however, provided mixed results in their adherence to this relationship, potentially due to conflicting evolutionary pressures related to differences in signaling range and communicational needs. To examine this potential parallel between human and animal vocal communication, and also to explore how divergent, sex-specific, communicational settings affect signaling efficiency within a species, we examined the complete vocal repertoire of rock hyraxes (

Indexed as

Animal communicationLaw of Brevityvocal coding efficiencyvocal repertoire

Identifiers

PMID31867122
PMCPMC6906988
OpenAlexW2991181992

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.