Evidence map›Paper›PMID 31363113›Full record

ArticleScientific reports2019

Travel linearity and speed of human foragers and chimpanzees during their daily search for food in tropical rainforests.

Haneul Jang, Christophe Boesch, Roger Mundry, Simone D Ban, Karline R L Janmaat

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
8.4field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Chimpanzees (Science advances · 2022
    Article
  11. Population interconnectivity over the past 120,000 years explains distribution and diversity of Central African hunter-gatherers.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  12. Drivers and outcomes of between-group conflict in vervet monkeys.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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

5 authors at 1 institution in 2 countries.

Haneul JangDepartment of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. haneul_jang@eva.mpg.de.
Christophe BoeschDepartment of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Roger MundryDepartment of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Simone D BanWild Chimpanzee Foundation, Abidjan, Côte d'Ivoire.
Karline R L JanmaatDepartment of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Max Planck Institute for Evolutionary Anthropology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To understand the evolutionary roots of human spatial cognition, researchers have compared spatial abilities of humans and one of our closest living relatives, the chimpanzee (Pan troglodytes). However, how humans and chimpanzees compare in solving spatial tasks during real-world foraging is unclear to date, as measuring such spatial abilities in natural habitats is challenging. Here we compared spatial movement patterns of the Mbendjele BaYaka people and the Taï chimpanzees during their daily search for food in rainforests. We measured linearity and speed during off-trail travels toward out-of-sight locations as proxies for spatial knowledge. We found similarly high levels of linearity in individuals of Mbendjele foragers and Taï chimpanzees. However, human foragers and chimpanzees clearly differed in their reactions to group size and familiarity with the foraging areas. Mbendjele foragers increased travel linearity with increasing familiarity and group size, without obvious changes in speed. This pattern was reversed in Taï chimpanzees. We suggest that these differences between Mbendjele foragers and Taï chimpanzees reflect their different ranging styles, such as life-time range size and trail use. This result highlights the impact of socio-ecological settings on comparing spatial movement patterns. Our study provides a first step toward comparing long-range spatial movement patterns of two closely-related species in their natural environments.

Indexed as

AnimalsAppetitive BehaviorFeeding BehaviorFemaleHumansKnowledgeMalePan troglodytesRainforestSpatial Behavior

Identifiers

PMID31363113
PMCPMC6667462
OpenAlexW2966316280

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.