Evidence map›Paper›PMID 42851717›Full record

ArticleEcology and evolution2026

West European Hedgehog (

David E Wembridge, Steve D Langton, Henrietta Pringle, Nicholas J Aebischer, Julie A Ewald, David G Noble, Silviu O Petrovan

Abstract read
In one paragraph

Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

David E WembridgePeople's Trust for Endangered Species London UK.
Steve D LangtonHallgarth Leavening UK.
Henrietta PringlePeople's Trust for Endangered Species London UK.
Nicholas J AebischerGame & Wildlife Conservation Trust Fordingbridge Hampshire UK.
Julie A EwaldGame & Wildlife Conservation Trust Fordingbridge Hampshire UK.ORCID https://orcid.org/0000-0002-6120-669X
David G NobleBritish Trust for Ornithology Thetford UK.
Silviu O PetrovanPeople's Trust for Endangered Species London UK.ORCID https://orcid.org/0000-0002-3984-2403

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There are increasing concerns about the population trends and conservation status of West European hedgehogs across their range. However, survey data for this species come from multiple independent projects with different aims and constraints; as such, data remain difficult to integrate and interpret. We collate and analyse hedgehog data from five separate recording schemes across Britain, representing the most complete information on population trends of the species to date. Analyses of three surveys, the longest going back to 1981, all show declines at rural sites, with changes in hedgehog abundance of -70.7% and -54.4% between 1981 and 2023, and 2002 and 2013, respectively, and -80.4% in occurrence between 2002 and 2023. Worryingly, the estimated average annual rate of decline accelerated from -2.88% between 1981 and 2023 to -6.81% between 2013 and 2023. Abundance changes in predominantly urban areas showed moderate increases in two surveys (6.7% between 2009 and 2023, and 20.0% between 2004 and 2024 respectively), while the same two surveys showed different trends in occurrence, declining until 2012/13 and thereafter either remaining below the baseline or recovering to around the baseline value. Possible reasons for this discrepancy are discussed. Overall, the results suggest significant changes in the hedgehog population of Great Britain between 1981 and 2024, indicating substantial, widespread declines in rural areas, with implications for future conservation efforts targeted at this species.

Indexed as

citizen sciencefarmland biodiversitylong‐term trendsmammal monitoringspecies conservation

Identifiers

PMID42851717
PMCPMC13647109

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.