Evidence map›Paper›PMID 34776592›Full record

ArticleBehavioral ecology and sociobiology2021

The development and maintenance of sex differences in dietary breadth and complexity in Bornean orangutans.

Caroline Schuppli, S Suci Utami Atmoko, Erin R Vogel, Carel P van Schaik, Maria A van Noordwijk

Abstract read
In one paragraph

Article in Behavioral ecology and sociobiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

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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.

Caroline SchuppliMax Planck Institute of Animal Behavior, Konstanz, Germany.ORCID 0000-0001-6318-2815
S Suci Utami AtmokoFakultas Biologi, Universitas Nasional, Jakarta, Indonesia.
Erin R VogelDepartment of Anthropology, Rutgers University, New Brunswick, NJ USA.
Carel P van SchaikDepartment of Anthropology, University of Zürich, Zürich, Switzerland.
Maria A van NoordwijkDepartment of Anthropology, University of Zürich, Zürich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

abstractOrangutans show a pronounced sexual dimorphism, with flanged males (i.e., males with fully grown secondary sexual characteristics) reaching twice the size of adult females. Furthermore, adult orangutans show sex-specific dispersal and activity patterns. This study investigates sex differences in adult foraging behavior and sheds light on how these differences develop in immatures. We analyzed 11 years of feeding data on ten adult female, seven flanged male, and 14 immature Bornean orangutans ( SIGNIFICANCE STATEMENT: In many species, males and females have different nutritional needs and are thus expected to show sex-specific foraging behavior. Sex differences in several aspects of foraging behavior have been found in various species, but it remains largely unclear when and how those develop during ontogeny, which is especially relevant for long-lived altricial species that learn foraging skills over many years. In our study, we analyzed a cross-sectional and longitudinal data set containing more than 750,000 feeding events of adult and immature Bornean orangutans ( SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00265-021-03014-3.

Indexed as

Diet breadthDiet complexityDiet repertoireFeeding skill acquisitionOrangutanSex differences

Identifiers

PMID34776592
PMCPMC8550522

What OpenQuestion holds

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Registered trials

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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.