Description
One hundred oak trees were selected from a set of 600 veteran oaks registered in the national oak survey. These oaks were divided into two sets of 50 oaks, where insects can be sampled every second year in each oak. For practical reasons, these two sets represent two different geographical regions; region East (Oslo, Akershus, Buskerud, Østfold, Telemark & Vestfold) and region West (Agder, Rogaland og Vestland). The oaks for each set were selected at random, with the exception of a doubled likelihood of selecting oaks with a visible cavity in addition to diameter at breast height larger than 200 cm, and a few criteria relating to the number of trees in each plot. The distribution of oaks between counties and within/outside of forest was controlled after the selection was made and was considered adequately balanced. Insects were sampled from the 50 selected oaks in region East in June and July in 2023, and from the 50 selected oaks in the Western region in June - September 2024. Two window traps were mounted at each tree, one in the canopy and one at the trunk, next to a cavity if the tree had any. Beetles were identified. Several original tables are here combined into a single event table, to fit the GBIF event core data format. These tables together represent the sampling design of the monitoring program and are noted as a series of hierarchical event levels in the "samplingProtocol" column.The data should therefore be unpacked to make proper sense of the data structure. Brief explanation of the hierarchical structure of the dataset: 1) The occurrence table can be joined to the event table through the parentEvent, which joins to an 2) identification event. This level exists because any sample may have gone through several identification events, possibly with differing methods. The identification events joins through its parentEvent with 3) a sampling_trap event, which designates a single trap in a single sampling event at a location. Sampling_trap events are joined through their parentEvent to a 4) locality sampling event, which is a single sampling period in a locality. Sampling events can have 1 or more traps (sampling trap events). Finally, the locality sampling events can be joined through their parentEvent to a 5) year locality event, which designates the sampling of insects in a single locality in a year. Relevant metadata or collected explanatory data is attached to each level, with the dynamicProperties column collecting the datatypes that the Darwin Event Core doesn't presently cater to. For example a range of environmental data at the sampling sites. An R-script for unpacking the data into a more usable format is available at https://github.com/NINAnor/national_insect_monitoring. Users will have to make minor adjustments to the script to fit this particular data set.
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 1 464 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.
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:
Jacobsen R, Laugsand A E, Hanssen O (2025). Monitoring of insects in veteran oaks. Version 1.0. Norwegian Institute for Nature Research. Samplingevent dataset. https://ipt.nina.no/resource?r=ins_hul_eik&v=1.0
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Norwegian Institute for Nature Research. 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 : 10c73e41-f84c-4458-884f-160db9fc341f. Norwegian Institute for Nature Research publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Norway.
Mots-clé
Samplingevent
Contacts
- Créateur ●
- Personne De Contact
https://orcid.org/0000-0003-4055-1096
- Créateur
- Créateur
Couverture géographique
The monitoring is limited to the country regions Østlandet, Sørlandet and Vestlandet.
| Enveloppe géographique | Sud Ouest [58,004, 5,686], Nord Est [60,409, 11,048] |
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Couverture taxonomique
N/A
| Phylum | Arthropoda |
|---|---|
| Class | Insecta |
| Order | Coleoptera |
| Family | Carabidae, Aderidae, Dasytidae, Ptinidae, Monotomidae, Curculionidae, Leiodidae, Cerylonidae, Cleridae, Scirtidae, Cantharidae, Scarabaeidae, Tenebrionidae, Cryptophagidae, Latridiidae, Nitidulidae, Staphylinidae, Elateridae |
Couverture temporelle
| Date de début / Date de fin | 2023-06-06 / 2024-09-02 |
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Données sur le projet
One hundred oak trees were selected from a set of 600 veteran oaks registered in the national oak survey. These oaks were divided into two sets of 50 oaks, where insects can be sampled every second year in each oak. For practical reasons, these two sets represent two different geographical regions; region East (Oslo, Akershus, Buskerud, Østfold, Telemark & Vestfold) and region West (Agder, Rogaland og Vestland). The oaks for each set were selected at random, with the exception of a doubled likelihood of selecting oaks with a visible cavity in addition to diameter at breast height larger than 200 cm, and a few criteria relating to the number of trees in each plot. The distribution of oaks between counties and with-in/outside of forest was controlled after the selection was made and was considered adequately balanced. Insects were sampled from the 50 selected oaks in region East in June and July in 2023, and from the remaining 50 in region Vest in 2024. Two window traps were mounted at each tree, one in the canopy and one at the trunk, next to a cavity if the tree had any.
| Titre | Monitoring of insects in veteran oaks |
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| Financement | Norwegian environmental agency |
Données de collection
| Nom de la collection | The insect collection at the Norwegian Institute of Nature Research |
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| Méthode de conservation des spécimens | Alcohol, Pinned |
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Métadonnées additionnelles
| Identifiants alternatifs | https://ipt.nina.no/resource?r=ins_hul_eik |
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