Evidence map›Paper›PMID 26464339›Full record

ArticleBMC evolutionary biology2015

Distinguishing between determinate and indeterminate growth in a long-lived mammal.

Hannah S Mumby, Simon N Chapman, Jennie A H Crawley, Khyne U Mar, Win Htut, Aung Thura Soe, Htoo Htoo Aung, Virpi Lummaa

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in BMC evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 55 citations in OpenAlex.

  1. Hatchlings ofBiology · 2026
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  4. Social Behavior and Group Formation in Male Asian Elephants (Animals : an open access journal from MDPI · 2022
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  14. Mahout Perspectives on Asian Elephants and Their Living Conditions.Animals : an open access journal from MDPI · 2019
    Article
  15. Article
  16. Article
  17. Evolutionary significance of maternal kinship in a long-lived mammal.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Article
  18. Article
  19. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Hannah S MumbyDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. hs.mumby@gmail.com.
Simon N ChapmanDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. snchapman93@gmail.com.
Jennie A H CrawleyDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. jahcrawley1@gmail.com.
Khyne U MarDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. k.mar@sheffield.ac.uk.
Win HtutMinistry of Environmental Conservation and Forestry, Myanma Timber Enterprise, Yangon, Myanmar. winhtut641@gmail.com.
Aung Thura SoeMinistry of Environmental Conservation and Forestry, Myanma Timber Enterprise, Yangon, Myanmar. thurasoemteelephant@gmail.com.
Htoo Htoo AungMinistry of Environmental Conservation and Forestry, Myanma Timber Enterprise, Yangon, Myanmar. KoHtooAung723@gmail.com.
Virpi LummaaDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. v.lummaa@sheffield.ac.uk.
University of Sheffield · GBMinistry of Natural Resources and Environment · LA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe growth strategy of a species influences many key aspects of its life-history. Animals can either grow indeterminately (throughout life), or grow determinately, ceasing at maturity. In mammals, continued weight gain after maturity is clearly distinguishable from continued skeletal growth (indeterminate growth). Elephants represent an interesting candidate for studying growth because of their large size, long life and sexual dimorphism. Objective measures of their weight, height and age, however, are rare.

resultsWe investigate evidence for indeterminate growth in the Asian elephant Elephas maximus using a longitudinal dataset from a semi-captive population. We fit growth curves to weight and height measurements, assess sex differences in growth, and test for indeterminate growth by comparing the asymptotes for height and weight curves. Our results show no evidence for indeterminate growth in the Asian elephant; neither sex increases in height throughout life, with the majority of height growth completed by the age of 15 years in females and 21 years in males. Females show a similar pattern with weight, whereas males continue to gain weight until over age 50. Neither sex shows any declines in weight with age.

conclusionsThese results have implications for understanding mammalian life-history, which could include sex-specific differences in trade-offs between size and reproductive investment.

Indexed as

AnimalsBody WeightConservation of Natural ResourcesElephantsFemaleMaleReproductionSex Characteristics

Identifiers

PMID26464339
PMCPMC4604763
OpenAlexW2125608579

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.