Evidence map›Paper›PMID 31273235›Full record

ArticleScientific reports2019

All-Male Groups in Asian Elephants: A Novel, Adaptive Social Strategy in Increasingly Anthropogenic Landscapes of Southern India.

Nishant Srinivasaiah, Vinod Kumar, Srinivas Vaidyanathan, Raman Sukumar, Anindya Sinha

Abstract 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 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Knowledge transmission, culture and the consequences of social disruption in wild elephants.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Pooled it
  2. Effects of organized guarding on mortality from human-elephant conflict in northeast India.Conservation biology : the journal of the Society for Conservation Biology · 2026
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  11. Elephants as an animal model for self-domestication.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Article
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  15. Article
  16. Social Behavior and Group Formation in Male Asian Elephants (Animals : an open access journal from MDPI · 2022
    Article
  17. Review
  18. Sociality and self-awareness in animals.Frontiers in psychology · 2022
    Article
  19. Article
  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.

Nishant SrinivasaiahNational Institute of Advanced Studies, Animal Behaviour and Cognition Programme, Bengaluru, 560012, India. msnishant@gmail.com.
Vinod KumarFoundation for Ecological Research, Advocacy and Learning, Pondicherry, 605101, India.
Srinivas VaidyanathanFoundation for Ecological Research, Advocacy and Learning, Pondicherry, 605101, India.ORCID http://orcid.org/0000-0003-3642-0309
Raman SukumarIndian Institute of Science, Centre for Ecological Sciences, Bengaluru, 560012, India.
Anindya SinhaNational Institute of Advanced Studies, Animal Behaviour and Cognition Programme, Bengaluru, 560012, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Male Asian elephants are known to adopt a high-risk high-gain foraging strategy by venturing into agricultural areas and feeding on nutritious crops in order to improve their reproductive fitness. We hypothesised that the high risks to survival posed by increasingly urbanising and often unpredictable production landscapes may necessitate the emergence of behavioural strategies that allow male elephants to persist in such landscapes. Using 1445 photographic records of 248 uniquely identified male Asian elephants over a 23-month period, we show that male Asian elephants display striking emergent behaviour, particularly the formation of stable, long-term all-male groups, typically in non-forested or human-modified and highly fragmented areas. They remained solitary or associated in mixed-sex groups, however, within forested habitats. These novel, large all-male associations, may constitute a unique life history strategy for male elephants in the high-risk but resource-rich production landscapes of southern India. This may be especially true for the adolescent males, which seemed to effectively improve their body condition by increasingly exploiting anthropogenic resources when in all-male groups. This observation further supports our hypothesis that such emergent behaviours are likely to constitute an adaptive strategy for male Asian elephants that may be forced to increasingly confront anthropogenically intrusive environments.

Indexed as

EcosystemElephantsAnimalsBehavior, AnimalBody SizeConservation of Natural ResourcesFemaleIndiaMaleSex Factors

Identifiers

PMID31273235
PMCPMC6609637

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.