Stratified sampling of Azorean forest arthropods

Sampling event Specimen
Dernière version Publié par Universidade dos Açores le mars 28, 2025 Universidade dos Açores
Date de publication:
28 mars 2025
Licence:
CC-BY 4.0

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Description

In the summer of 2024, a monitoring study was conducted in the Azorean Islands of Terceira (Portugal) to assess arthropod diversity and distribution in native and exotic forests. This initiative forms part of a project that aims to evaluate the impact of habitat structure change on arthropod food web complexity in Azorean forests. In particular, the study seeks to assess how changes in arthropod biodiversity are influenced by the structural complexity of forests. The current dataset comprises terrestrial arthropods collected using SLAM (Sea, Land, and Air Malaise) traps and Pitfall traps across diverse forest strata. It encompasses identified arthropods from the Arachnida, Diplopoda, Chilopoda, and Insecta classes. A total of 32,797 specimens were collected, with 18,372 (56%) identified at the species or subspecies level, including 12,745 adults, and 5,627 juveniles for taxa such as Araneae and Hemiptera due to the availability of reliable identification methods. The resulting dataset encompasses 150 species and 11 subspecies, distributed across six classes, 21 orders, 81 families, and 148 genera. Hemiptera emerged as the most prevalent identified order, with a total of 10,689 recorded specimens, and Coleoptera stood as the most taxonomically diverse, encompassing 19 distinct families. The ten most prevalent species comprise predominantly endemic and native non-endemic species, with two exotic species detected among them. This comprehensive dataset serves as a significant augmentation of the existing baseline knowledge concerning the diversity of Azorean arthropods, thereby facilitating the formulation of future long-term ecological comparisons. It offers valuable insights into the vertical distribution of species abundance within both native and secondary forests of the Azores.

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 326 enregistrements.

1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

Event (noyau)
326
Occurrence 
2399

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Lhoumeau S, Borges P A V (2025). Stratified sampling of Azorean forest arthropods. Version 1.6. Universidade dos Açores. Samplingevent dataset. http://ipt.gbif.pt/ipt/resource?r=azores_forest_arthropods&v=1.6

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Universidade dos Açores. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : d3580ac2-a504-44e0-8e59-de89c430924c.  Universidade dos Açores publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Portugal.

Mots-clé

Occurrence; Specimen; Arthropoda; Azores; Native forest; Exotic forest; SLAM Trap; Pitfall Trap; Sampling event

Contacts

Sébastien Lhoumeau
  • Créateur
  • Researcher
Centre for Ecology, Evolution and Environmental Changes (cE3c)/Azorean Biodiversity Group, CHANGE – Global Change and Sustainability Institute
  • School of Agricultural and Environmental Sciences, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze
9700-042 Angra do Heroismo
Azores
PT
Paulo A. V. Borges
  • Associate Professor
Centre for Ecology, Evolution and Environmental Changes (cE3c)/Azorean Biodiversity Group, CHANGE – Global Change and Sustainability Institute
  • School of Agricultural and Environmental Sciences, University of the Azores, Rua Capitão João d´Ávila, Pico da Urze
9700-042 Angra do Heroísmo
Azores
PT
  • +351968933212
Paulo A. V. Borges
Centre for Ecology, Evolution and Environmental Changes (cE3c)/Azorean Biodiversity Group, CHANGE – Global Change and Sustainability Institute
9700-042 Angra do Heroísmo
Azores
PT

Couverture géographique

Terceira Island, Azores (Portugal)

Enveloppe géographique Sud Ouest [38,637, -27,379], Nord Est [38,805, -27,033]

Couverture taxonomique

This dataset includes arthropods from several groups including Arachnida, Diplopoda, Chilopoda and Insecta

Kingdom Animalia
Phylum Arthropoda
Class Arachnida, Diplopoda, Chilopoda, Insecta
Order Hemiptera, Opiliones, Phasmida, Polydesmida, Julida, Blattodea, Thysanoptera, Neuroptera, Dermaptera, Archaeognatha, Ephemeroptera, Araneae, Lepidoptera, Trichoptera, Geophilomorpha, Pseudoscorpiones, Strepsiptera, Lithobiomorpha, Coleoptera, Hymenoptera, Psocodea
Family Lycosidae, Delphacidae, Rutelidae, Triozidae, Zopheridae, Linotaeniidae, Noctuidae, Thomisidae, Tingidae, Lygaeidae, Machilidae, Mycetophagidae, Linyphiidae, Elenchidae, Lithobiidae, Leiobunidae, Liviidae, Scraptiidae, Curculionidae, Segestriidae, Miridae, Anthocoridae, Epipsocidae, Dysderidae, Throscidae, Phasmatidae, Psyllidae, Ptinidae, Cucujidae, Limnephilidae, Hydrophilidae, Geophilidae, Silvanidae, Baetidae, Mimetidae, Cixiidae, Dictynidae, Nabidae, Coccidae, Araneidae, Geometridae, Ectopsocidae, Phalacridae, Lachesillidae, Microphysidae, Dryopidae, Aphididae, Tortricidae, Blaniulidae, Psocidae, Cryptophagidae, Theridiidae, Rhyparochromidae, Chthoniidae, Tetragnathidae, Carabidae, Argyresthiidae, Cheiracanthiidae, Corydiidae, Phlaeothripidae, Caeciliusidae, Latridiidae, Salticidae, Staphylinidae, Elateridae, Thripidae, Pisauridae, Dryophthoridae, Anisolabididae, Paradoxosomatidae, Polydesmidae, Forficulidae, Saldidae, Cicadellidae, Aleyrodidae, Coccinellidae, Leiodidae, Neobisiidae, Apionidae, Hemerobiidae, Trichopsocidae, Chrysomelidae, Flatidae, Elipsocidae, Julidae, Nitidulidae, Clubionidae, Laemophloeidae, Formicidae

Couverture temporelle

Date de début / Date de fin 2024-06-11 / 2024-08-19

Données sur le projet

In the summer of 2024, a monitoring study was conducted in the Azorean Islands of Terceira (Portugal) to assess arthropod diversity and distribution in native and exotic forests. This initiative forms part of a project that aims to evaluate the impact of habitat structure change on arthropod food web complexity in Azorean forests. In particular, the study seeks to assess how changes in arthropod biodiversity are influenced by the structural complexity of forestsThe current dataset comprises terrestrial arthropods collected using SLAM (Sea, Land, and Air Malaise) traps across diverse forest strata and Pitfall traps.

Titre The impact of habitat structure change on arthropod food web complexity in Azorean forests
Identifiant SLAM_VERTICAL
Financement Sebastien Lhoumeau was funded by the project « The impact of habitat structure change on arthropod food web complexity in Azorean forests” (M3.1.a/F/012/2022) » Additional Funding come for : Portal da Biodiversidade dos Açores (2022-2023) - PO Azores Project - M1.1.A/INFRAEST CIENT/001/2022 (2022); FCT-UIDB/00329/2020-2024 (Thematic Line 1 – integrated ecological assessment of environmental change on biodiversity) (2019-2022); Science and Technology Foundation (FCT) - MACRISK-Trait-based prediction of extinction risk and invasiveness for Northern Macaronesian arthropods (FCT-PTDC/BIA-CBI/0625/2021) (2022)
Description du domaine d'étude / de recherche The Azores are an isolated archipelago situated at 38°43′49″N, 27°19′10″W in the mid-Atlantic Ocean. The archipelago comprises nine volcanic islands, which are spread over 500 km in a W/NW–E/SE direction. During this project, the island of Terceira (the third biggest) was surveyed. Ten sampling plots were selected in areas of native vegetation, predominantly dominated by endemic species such as Juniperus brevifolia, Erica azorica, Laurus azorica, and Ilex azorica, with some indications of invasive species like Pittosporum undulatum and Hedychium gardnerianum. Ten additional plots were situated in secondary forests, predominantly characterised by Pittosporum undulatum and Hedychium gardnerianum, yet exhibiting indications of endemic and native ferns such as Dryopteris azorica and Diplazium caudatum
Description du design The experimental design entailed a 90-day sampling period, spanning from June to September 2024, across all the twenty sites. The sampling method employed was SLAM traps, with three traps deployed at each site. These traps were positioned at varying heights within the forest, specifically at 0%, 50%, and 75% of the maximum canopy height. Additionally, 14 pitfall traps were utilised at each site for a duration of 14 days, commencing in July and concluding in August 2024

Les personnes impliquées dans le projet:

Paulo Borges
  • Auteur
Sébastien Lhoumeau
  • Auteur
Laurine Parmentier
  • Fournisseur De Contenu
Abrão Leite
  • Fournisseur De Contenu
Clémence Massard
  • Fournisseur De Contenu
Martha Vounatsi
  • Fournisseur De Contenu
Georgery Lucie
  • Fournisseur De Contenu

Méthodes d'échantillonnage

Passive flight interception SLAM traps (Sea, Land and Air Malaise trap) were used to sample the plots, with three traps being setup at each plot at different height within the forest. Traps are 110 x 110 x 110 cm. In this type of trap, the trapped arthropods crawl up the mesh and then fall inside the sampling recipient (Borges et al. 2017). Each one is filled with propylene glycol (pure 1,2-PROPANODIOL) to kill the captured arthropods and conserve the sample between collections, enabling also the preservation of DNA for future genetic analysis. Although this protocol was developed to sample flying arthropods, by working as an extension of the tree, non-flying species such as spiders can also crawl into the trap (Borges et al. 2017), enhancing the range of groups that can be sampled by this technique. Because of this, previous studies have used these traps to analyse diversity and abundance changes in the arthropod communities in Azores pristine forest sites (Matthews et al. 2019, Borges et al. 2020, Lhoumeau and Borges 2023). The traps samples were collected after 3 months in the studied sites. We completed the sampling by using 14 passive pitfall traps randomly distributed within the plots to sample the epigean fauna. Traps have a 5 opening diameter and filled with ethylene-glycol. Pitfall traps were collected after two weeks (14 nights) of continuous operation

Etendue de l'étude A total of twenty 20m x 20m plots were sampled in one island from the archipelago (Terceira). Ten of these plots were set constitute some of the most well-preserved wet forests in these islands, having small human disturbance (Borges et al. 2017).The native forest is dominated by endemic vegetation such as Juniperus brevifolia, Erica azorica, Laurus azorica and Ilex azorica (see Borges et al. 2017 for more details). Ten other plots are in secondary forests, with dominated by exotic and invasive trees
Contrôle qualité All sorted specimens were identified by a taxonomical expert

Description des étapes de la méthode:

  1. Taxonomy follows the last clecklist of Azorean arthropods (Borges et al., 2022)
  2. The data has been published as a Darwin Core Archive (DwC-A), which is a standardised format for sharing biodiversity data as a set of one or more data tables. The core data table (events) contains 338 records, and one data table extension also exists (occurrence), with 1688 records. The extension supplies extra information about the core record.

Données de collection

Nom de la collection Entomoteca Dalberto Teixeira Pombo (DTP)
Identifiant de collection DTP
Méthode de conservation des spécimens Alcohol

Citations bibliographiques

  1. Borges, P.A.V., Lamelas-Lopez, L., Andrade, R., Lhoumeau, S., Vieira, V., Soares, A.O., Borges, I., Boieiro, M., Cardoso, P., Crespo, L.C.F., Karsholt, O., Schülke, M., Serrano, A.R.M., Quartau, J.A. & Assing, V. (2022). An updated checklist of Azorean arthropods (Arthropoda). Biodiversity Data Journal, 10: e97682. DOI: 10.3897/BDJ.10.e97682
  2. Borges, P.A.V., Rigal, F., Ros-Prieto, A., & Cardoso, P. (2020). Increase of insular exotic arthropod diversity is a fundamental dimension of the current biodiversity crisis. Insect Conservation and Diversity, 13: 508-518. DOI: 10.1111/icad.12431
  3. Borges, P.A.V., Pimentel, R., Carvalho, R., Nunes, R., Wallon, S. & Ros Prieto, A. (2017). Seasonal dynamics of arthropods in the humid native forests of Terceira Island (Azores). Arquipelago Life and Marine Sciences, 34: 105-122 http://hdl.handle.net/10400.3/4470
  4. Lhoumeau, S. & Borges, P.A.V. (2023). Assessing the Impact of Insect Decline in Islands: Exploring the Diversity and Community Patterns of Indigenous and Non-Indigenous Arthropods in the Azores Native Forest over 10 Years. Diversity, 15: 753. DOI: 10.3390/d15060753
  5. Matthews, T., Sadler, J.P., Carvalho, R., Nunes, R. & Borges, P.A.V. (2019). Differential turnover rates and temporal beta-diversity patterns of native and non-native arthropod species in a fragmented native forest landscape. Ecography, 42: 45–54 10.1111/ecog.03812

Métadonnées additionnelles

Remerciements Sébastien Lhoumeau was Funded by the Ph.D. Project from FRCT "The impact of habitat structure change on arthropod food web complexity in Azorean forests” (M3.1.a/F/012/2022).
Introduction

This comprehensive dataset serves as a significant augmentation of the existing baseline knowledge concerning the diversity of Azorean arthropods, thereby facilitating the formulation of future long-term ecological comparisons. The dataset offers invaluable insights into the vertical distribution of species abundance within both native and secondary forests of the Azores.
Premiers pas

The dataset encompasses arthropods from the Arachnida (excluding Acari), Diplopoda, Chilopoda, and Insecta classes (excluding Collembola, Diptera, Hymenoptera, and Lepidoptera A total of 32,797 specimens were collected, with 18,372 (56%) identified at the species or subspecies level, including 12,745 adults, and 5,627 juveniles for taxa such as Araneae and Hemiptera due to the availability of reliable identification methods. The resulting dataset encompasses 150 species and 11 subspecies, distributed across six classes, 21 orders, 81 families, and 148 genera.
Objet In the summer of 2024, a monitoring study was conducted in the Azorean Islands of Terceira (Portugal) to assess arthropod diversity and distribution in native and exotic forests. This initiative forms part of a project that aims to evaluate the impact of habitat structure change on arthropod food web complexity in Azorean forests. In particular, the study seeks to assess how changes in arthropod biodiversity are influenced by the structural complexity of forestsThe current dataset comprises terrestrial arthropods collected using SLAM (Sea, Land, and Air Malaise) traps across diverse forest strata and Pitfall traps
Identifiants alternatifs d3580ac2-a504-44e0-8e59-de89c430924c
http://ipt.gbif.pt/ipt/resource?r=azores_forest_arthropods