Evidence map›Paper›PMID 42310352›Full record

ArticleScientific reports2026

Stability in the face of global decline: a 20-year study of arthropods in an oceanic archipelago.

Gabor Pozsgai, Pedro Cardoso, Simone Fattorini, François Rigal, Ana M C Santos, Robert J Whittaker, Isabel R Amorim, Mário Boieiro, Luís Borda-de-Água, Ricardo Costa and 17 more

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Article in Scientific reports, 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

27 authors.

Gabor PozsgaiCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal. pozsgaig@coleoptera.hu.
Pedro CardosoCE3C Centre for Ecology, Evolution and Environmental Changes, Change Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
Simone FattoriniDepartment of Life, Health and Environmental Sciences, University of L'Aquila, Via Vetoio, 67100, L'Aquila, Italy.
François RigalCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Ana M C SantosCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Robert J WhittakerSchool of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK.
Isabel R AmorimCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Mário BoieiroCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Luís Borda-de-ÁguaCIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal.
Ricardo CostaCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Luís Carlos CrespoCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Maria Teresa FerreiraRegional Secretariat of Environment and Climate Action, Universidade dos Açores, Rua do Galo n118, 9700-040, Angra do Heroísmo, Azores, Portugal.
Abrão LeiteEscola Superior de Hotelaria e Turismo do Estoril, Rua Fernando Pessoa, nº99 R/C DTO, 2765-483, Estoril, Portugal.
Sébastien LhoumeauCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Jagoba Malumbres-OlarteCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Thomas J MatthewsCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Catarina MeloCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Guilherme OyarzabalCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Fernando PereiraCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
José A QuartauCE3C Centre for Ecology, Evolution and Environmental Changes, Change Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
Carla RegoCE3C Centre for Ecology, Evolution and Environmental Changes, Change Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
Sérvio RibeiroLaboratório de Ecologia do Adoecimento e Florestas, NUPEB, Instituto de Ciências Exatas e Biológicas Campus Morro do Cruzeiro, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil.
Alejandra Ros-PrietoCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Artur R M SerranoCE3C Centre for Ecology, Evolution and Environmental Changes, Change Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
Kostas A TriantisDepartment of Ecology and Taxonomy, Faculty of Biology, National and Kapodistrian University of Athens, GR-15784, Athens, Greece.
Rosalina GabrielCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.
Paulo A V BorgesCentre for Ecology, Evolution and Environmental Changes CHANGE Global Change and Sustainability Institute, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze, 9700-042, Angra do Heroísmo, Portugal.

Funding

Azorean Government M3.1.a/F/012/2022Azores DRCT Pluriannual Funding M1.1.A/FUNC.UI&D/010/2021-2024Direcção Regional dos Recursos Florestais (Azorean Government) 17.01-080203Fundação para a Ciência e a Tecnologia FCT - PTDC/BIA-CBI/0625/2021Fundação para a Ciência e a Tecnologia FCT-UIDB/00329/2020-2024Fundação para a Ciência e a Tecnologia FCT-UIDB/00329/2020-2024 DOI 10.54499/UIDB/00329/2020Fundação para a Ciência e a Tecnologia FCT-UIDP/00329/2020Fundação para a Ciência e a Tecnologia https://doi.org/10.54499/DL57/2016/CP1375//CT0001Fundação para a Ciência e a Tecnologia https://doi.org/10.54499/DL57/2016/CP1375/CT0003Fundação para a Ciência e a Tecnologia PTDC/BIA-BEC/100182/2008LIFE Beetles 18NAT/PT/000864Ministry of Science and Innovation and the Spanish State Research Agency MICIN/ AEI/10.13039/501100011033Spanish Ramón y Cajal Fellowship RYC2020-029407-ISPR Research Grant CNPq-306572-2019-2
6 · The paper itself

Abstract

Insect declines are of global concern, yet no long-term ecological studies (LTER) have confirmed this trend on islands. This study utilises the first available LTER data on island arthropods, targeting epigeal and canopy species from the Azores Archipelago (Portugal), and covering over 20 years in three distinct sampling events from 30 standard sites. We investigate changes in abundance, biomass, and species richness within native forest arthropod communities, focusing on the proportions of endemic and introduced species, and temporal patterns among single-island endemics and forest-dependent endemics. Results reveal significant temporal variability, but overall abundance, biomass, and species richness remain stable across endemic and native non-endemic taxa. Among the species studied, 28% declined, 17% increased, and 55% showed no significant differences. Exotic invasions and related extinctions appear minimal. Forest-dependent endemic species declined below anticipated levels, suggesting that the extinction debt for these species may be less severe than initially expected. Nonetheless, some forest specialists have declined significantly, and seven species, not seen over 20 years, are considered to be extinct. The three-decade-long conservation of Azorean native forests may have contributed to the stability of some populations, thus these findings underscore the need for continued and enhanced conservation efforts of insular forest-associated diversity.

Indexed as

ArthropodsAnimalsBiodiversityBiomassConservation of Natural ResourcesEcosystemForestsIslandsPopulation DynamicsPortugal

Identifiers

PMID42310352
PMCPMC13542152

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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.