Evidence map›Paper›PMID 32126952›Full record

ArticleProceedings. Biological sciences2020

Mixed-species herding levels the landscape of fear.

Keenan Stears, Melissa H Schmitt, Christopher C Wilmers, Adrian M Shrader

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.9field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Gouldian Finches (Animals : an open access journal from MDPI · 2025
    Article
  3. Zebra stripes: the questions raised by the answers.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  4. Aggregation-diffusion in heterogeneous environments.Journal of mathematical biology · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Identifying the social context of single- and mixed-species group formation in large African herbivores.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  10. Mixed-species flock composition matters: interspecific influences on finding novel food in North American parids.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  11. Multispecies collective waving behaviour in fish.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Mixed-species herding levels the landscape of fear.Proceedings. Biological sciences · 2020
    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 3 institutions in 2 countries.

Keenan StearsDepartment of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA.
Melissa H SchmittSchool of Life Sciences, University of KwaZulu-Natal, Scottsville 3209, South Africa.
Christopher C WilmersDepartment of Environmental Studies, University of California, Santa Cruz, CA 95064, USA.
Adrian M ShraderSchool of Life Sciences, University of KwaZulu-Natal, Scottsville 3209, South Africa.
University of California, Santa Cruz · USUniversity of California, Santa Barbara · USUniversity of Pretoria · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prey anti-predator behaviours are influenced by perceived predation risk in a landscape and social information gleaned from herd mates regarding predation risk. It is well documented that high-quality social information about risk can come from heterospecific herd mates. Here, we integrate social information with the landscape of fear to quantify how these landscapes are modified by mixed-species herding. To do this, we investigated zebra vigilance in single- and mixed-species herds across different levels of predation risk (lion versus no lion), and assessed how they manage herd size and the competition-information trade-off associated with grouping behaviour. Overall, zebra performed higher vigilance in high-risk areas. However, mixed-species herding reduced vigilance levels. We estimate that zebra in single-species herds would have to feed for approximately 35 min more per day in low-risk areas and approximately 51 min more in high-risk areas to compensate for the cost of higher vigilance. Furthermore, zebra benefitted from the competition-information trade-off by increasing the number of heterospecifics while keeping the number of zebra in a herd constant. Ultimately, we show that mixed-species herding reduces the effects of predation risk, whereby zebra in mixed-species herds, under high predation risk, perform similar levels of vigilance compared with zebra in low-risk scenarios.

Indexed as

FearPredatory BehaviorAnimalsBehavior, AnimalEquidaeLionsWakefulnessherding behaviourpredationsocial informationvigilancezebra

Identifiers

PMID32126952
PMCPMC7126070
OpenAlexW3009501753

What OpenQuestion holds

Textmetadata
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.