Evidence map›Paper›PMID 42213306›Full record

ArticlePrimates; journal of primatology2026

Activity budgets and boldness as potential predictors of release readiness in rehabilitating Javan slow lorises.

Abdullah Langgeng, Marie Sigaud, Wendi Prameswari, Nur Purba Priambada, Puji Rianti, Richard Moore, Ikki Matsuda, Andrew J J MacIntosh

Abstract read
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In one paragraph

Article in Primates; journal of primatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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.

Abdullah LanggengWildlife Research Center, Kyoto University, 2‑24, Tanaka‑Sekiden‑Cho, Sakyo, Kyoto, 606‑8203, Japan. abdullahlanggeng@gmail.com.ORCID http://orcid.org/0000-0003-4896-6704
Marie SigaudMuséum National d'Histoire Naturelle, Paris, France.ORCID http://orcid.org/0000-0002-6958-7239
Wendi PrameswariYayasan Inisiasi Alam Rehabilitasi Indonesia, Bogor, West Java, Indonesia.ORCID http://orcid.org/0009-0003-0226-2135
Nur Purba PriambadaYayasan Inisiasi Alam Rehabilitasi Indonesia, Bogor, West Java, Indonesia.ORCID http://orcid.org/0009-0003-5228-7541
Puji RiantiDepartment of Biology, Faculty of Mathematics and Science, IPB University, Bogor, West Java, Indonesia.ORCID http://orcid.org/0000-0002-0898-4310
Richard MooreYayasan Inisiasi Alam Rehabilitasi Indonesia, Bogor, West Java, Indonesia.
Ikki MatsudaWildlife Research Center, Kyoto University, 2‑24, Tanaka‑Sekiden‑Cho, Sakyo, Kyoto, 606‑8203, Japan.ORCID http://orcid.org/0000-0002-0861-7801
Andrew J J MacIntoshWilder Institute, Calgary, AB, Canada.ORCID http://orcid.org/0000-0002-9136-7099

Funding

Japan Society for the Promotion of Science JPJSCCB20250006
6 · The paper itself

Abstract

Rehabilitation centers are central to the conservation of Javan slow lorises (Nycticebus javanicus) by providing care for individuals confiscated from trade and preparing them for potential release. To evaluate behavioral readiness for translocation, we quantified activity budgets and boldness in 10 adult N. javanicus (7 females and 3 males) housed at a rehabilitation facility in West Java, Indonesia, from May to September 2024. Locomotion dominated activity budgets (57.14% ± 24.86%), followed by resting (23.51% ± 16.61%), with low rates of stereotypy (4.36% ± 13.48%) and grooming (2.33% ± 5.28%). Boldness tests using six novel objects revealed strong stimulus dependence: predator models suppressed approach, while enrichment and neutral objects encouraged exploration. Sex, housing conditions, and rehabilitation duration did not predict boldness, indicating inter-individual differences in responses to novelty. Principal component analysis identified an integrated bold-exploratory activity axis, suggesting that activity budgets and boldness covary as part of a behavioral syndrome rather than independent traits. Together, these results indicate that combined activity and personality metrics provide complementary indicators of behavioral welfare and release readiness, with potential to improve pre-release assessment and site matching for this critically endangered primate.

Indexed as

Animal WelfareBehavior, AnimalConservation of Natural ResourcesLorisidaeAnimalsExploratory BehaviorFemaleGroomingIndonesiaMaleBehavioral syndromeConservation managementNocturnal primatesPersonalityWelfare assessment

Identifiers

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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.