Evidence map›Paper›PMID 40071106›Full record

ArticleAnimal welfare (South Mimms, England)2025

Visitor effects on the welfare of captive Sumatran orangutans (

Ezekiel F Gading, Valerie Am Schoof, Maria Franke, Suzanne E MacDonald

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Animal welfare (South Mimms, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Ezekiel F GadingDepartment of Psychology, York University, Toronto, Ontario, Canada.ORCID https://orcid.org/0009-0000-0854-3358
Valerie Am SchoofBilingual Biology Program, Multidisciplinary Studies Department, Glendon College, York University, Toronto, Ontario, Canada.ORCID https://orcid.org/0000-0002-6545-7736
Maria FrankeWildlife Conservation & Welfare Science Department, Toronto Zoo, Toronto, Ontario, Canada.
Suzanne E MacDonaldDepartment of Psychology, York University, Toronto, Ontario, Canada.ORCID https://orcid.org/0000-0001-8152-6992

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The COVID-19 pandemic led to unprecedented lockdowns with rippling impacts on the lives of humans and animals alike. Since zoos were among the first institutions to close during the pandemic, the lockdowns presented the opportunity to conduct a natural experiment examining the relationship between visitor presence and the welfare of zoo-housed animals. In this study, we assessed the welfare of six Sumatran orangutans (

Indexed as

animal welfarebehaviourCOVID-19human-animal interactionprimatesstress

Identifiers

PMID40071106
PMCPMC11894407

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.