Evidence map›Paper›PMID 33628628›Full record

ArticlePeerJ2021

A kingdom in decline: Holocene range contraction of the lion (

David M Cooper, Andrew J Dugmore, Andrew C Kitchener, Marc J Metzger, Antonio Trabucco

Abstract read
In one paragraph

Article in PeerJ, 2021. 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. Exceedingly low genetic diversity in snow leopards due to persistently small population size.Proceedings of the National Academy of Sciences of the United States of America · 2025
    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

5 authors.

David M CooperInstitute of Geography, University of Edinburgh, School of Geosciences,, Edinburgh, United Kingdom.
Andrew J DugmoreInstitute of Geography, University of Edinburgh, School of Geosciences,, Edinburgh, United Kingdom.
Andrew C KitchenerInstitute of Geography, University of Edinburgh, School of Geosciences,, Edinburgh, United Kingdom.
Marc J MetzgerInstitute of Geography, University of Edinburgh, School of Geosciences,, Edinburgh, United Kingdom.
Antonio TrabuccoEuro-Mediterranean Center on Climate Change, IAFES Division, Sassari, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimWe use ecological niche models and environmental stratification of palaeoclimate to reconstruct the changing range of the lion ( LOCATION: The modern (early 21st century) range of the lion extends from southern Africa to the western Indian Subcontinent, yet through the 20th century this range has been drastically reduced in extent and become increasingly fragmented as a result of human impacts.

methodsWe use Global Environmental Stratification with MaxEnt ecological niche models to map environmental suitability of the lion under current and palaeoclimatic scenarios. By examining modelled lion range in terms of categorical environmental strata, we characterise suitable bioclimatic conditions for the lion in a descriptive manner.

resultsWe find that lion habitat suitability has reduced throughout the Holocene, controlled by pluvial/interpluvial cycles. The aridification of the Sahara  6ka dramatically reduced lion range throughout North Africa. The association of Saharan aridification with the development of pastoralism and the growth of sedentary communities, who practised animal husbandry, would have placed additional and lasting anthropogenic pressures on the lion. MAIN

conclusionsThis research highlights the need to integrate the full effects of the fluctuating vegetation and desiccation of the Sahara into palaeoclimatic models, and provides a starting point for further continental-scale analyses of shifting faunal ranges through North Africa and the Near East during the Holocene. This scale of ecological niche modelling does not explain the current pattern of genetic variation in the lion, and we conclude that narrow but substantial physical barriers, such as rivers, have likely played a major role in population vicariance throughout the Late Pleistocene.

Indexed as

Climate ChangeEcological Niche ModellingGlobal Environmental StratificationHoloceneLast Glacial MaximumLionMaximum EntropyPanthera leo

Identifiers

PMID33628628
PMCPMC7891088

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LicenceCC BY
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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.