Description
Within the framework of a two-year project ground beetles were assessed in corn fields,grown for biogas production, with or without a two seed mixtures flower strip as well as in the adjacent forest. Study sites were situated within conventional fields typical for the agricultural landscapes in northern German lowlands in direct proximity to the nature reserve Lüneburger Heide.
We provide data on 34 413 specimens belonging to 93 ground beetle species. Four species have been classified as being Near Threatened within Germany. At the level of the Federal State Lower Saxony, four species are classified as Endangered, nine species as Vulnerable and one as Near Threatened, highlighting the importance of this data set also for conservation purposes.
Enregistrements de données
Les données de cette ressource occurrence 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 3 434 enregistrements.
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
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Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Grabener S, Boutaud E, Drees C, Gürlich S, Härdtle W, Husemann L, Kubiak M, Laschke C J, Remmers S, Zumstein P, Assmann T (2025). Ground beetle fauna of flower strips and forest edges in northern German lowlands’ conventional agricultural landscapes (Coleoptera: Carabidae). Version 1.3. Biodiversity Data Journal. Occurrence dataset. https://ipt.pensoft.net/resource?r=car_agr_nw-ger&v=1.3
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Biodiversity Data Journal. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.
Enregistrement GBIF
Cette ressource n'a pas été enregistrée sur le portail GBIF
Mots-clé
Occurrence; agriculture; Barber; pitfall traps; corn fields; corridors; pest management; ecosystem services; Specimen
Contacts
- Fournisseur Des Métadonnées
- Research associate
- Universitätsallee 1
- +49 177 755 9491
https://orcid.org/0000-0003-4748-8157
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- Fournisseur Des Métadonnées
Couverture géographique
The study was carried out in North German lowlands in the north-east of the Federal State of Lower Saxony. The majority of the study sites (14) were located in the municipality of Undeloh in the district of Harburg and the remaining eight were located in the adjacent municipality of Bispingen in the district of Heidekreis.
| Enveloppe géographique | Sud Ouest [53,11, 9,894], Nord Est [53,23, 10,028] |
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Couverture taxonomique
The dataset covers 93 species of the family Carabidae (including two species of the subfamily Cicindelinae) belonging to 30 genera.
| Kingdom | Animalia |
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| Phylum | Arthropoda |
| Class | Insecta |
| Order | Coleoptera |
| Family | Carabidae |
Couverture temporelle
| Date de début / Date de fin | 2017-06-07 / 2018-08-16 |
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Données sur le projet
Pas de description disponible
| Titre | Minderung der Barrierewirkung von Agrarflächen mittels halboffener Verbundkorridore |
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| Financement | The project was funded by the German Federal Agency for Nature Conservation (BfN) with funds from the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU). Funding code: 35 16 820 300. |
| Description du domaine d'étude / de recherche | The study area is located in north-west Germany (Lower Saxony). The region represents a hilly landscape consisting of deposits of the penultimate glacial period (Saale glacial period) and is currently dominated by agricultural and forest areas with patches of heathlands. The latter are preserved as historical cultural landscapes for nature conservation purposes. The climate is temperate suboceanic. Within this region, we selected 22 study sites. 14 of them are located in the district of Harburg, and 8 in the district of Heidekreis. |
| Description du design | The experiment followed a repeated partly split-plot design. We selected 22 fields where corn (Zea mays) was grown for the two years of the study which at least one edge adjacent to a forested area. On half of the fields (11) a flower strip 30m wide and 200m long was sown alongside the forest edge. Flower strips were divided into two equal parts, 100m long, and sown with two different seed mixtures. The first one is a standard seed mixture only containing seven non-native annual cultural flowering species commonly used for green manure. The second mixture was enriched with annual native herb species thus totalling 21 plant species. Both flower strips were annual and sown each year in April. Pitfall traps were installed at 15m distance from the forest edge and from each other. Five traps were set in the forest as well as in the corn field treatment. In the flower strips, three traps per seed mixture were installed. Traps were run continuously (except when the farmers worked the field), but for this dataset only traps that were open between June to August were analysed, since the vegetation of the flower strips is well established within these months, and effects of flower strips were expected to be most pronounced. If available, three traps per habitat, treatment and seed mixture (forest / corn field / flower strip standard / flower strip enriched) and time interval were evaluated. |
Les personnes impliquées dans le projet:
- Auteur
Méthodes d'échantillonnage
Pitfall traps filled with so-called Renner-solution were installed in early spring (April 2017) except for the sites H13 and H14 which were installed one year later in April 2018. Traps were covered with wire mesh to prevent vertebrates from falling in. The sides of the wire were bent up so that even large specimens running on the ground could still fall in. Traps that went into the analysis were those that were within the months June to August of both years. The traps remained opened for 14 to 44 days, depending on weather conditions. Traps were changed more often when temperatures were high or after heavy rainfalls (to avoid dilution of the trapping solution).
| Etendue de l'étude | Temporal: Summer 2017 and Summer 2018 Geographic: Northern German lowlands |
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| Contrôle qualité | All collected individuals were identified by Swantje Grabener, Christin Juno Laschke, Sina Remmers and Lena Husemann in the laboratory and at least ten individuals per species (if available) were identified by the professional taxonomists Thorsten Assmann, Stephan Gürlich and Estève Boutaud. |
Description des étapes de la méthode:
- Traps were labelled in the field and further stored at 7°C until samples were processed, and carabid beetles were identified in the laboratory. Data on species identity, number of individuals per species, the person who identified the species as well as the year of identification and, if necessary, the person who verified identification and the year of verification, were put into a table format together with the trap information. Specimens from the same trap were stored in vials containing Scheerpeltz-solution (70% ethanol, 5% acetic acid) for long-term storage. For each species, at least ten specimens (if available) were mounted and labelled with all trap and identification information. The locations were retrieved using a standard GPS system. Coordinate uncertainty was set to 100m as for the coordinates the centre of the study site was entered so that all traps from one study site had the same geographic coordinates despite the traps thus ignoring the actual position of the traps.
Métadonnées additionnelles
| Remerciements | The project was funded by the German Federal Agency for Nature Conservation (BfN) with funds from the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU). Funding code: 35 16 820 300. We would like to thank the farmers for their cooperation and student helpers and students who did their thesis within the framework of this project and by that contributed to the dataset. |
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| Identifiants alternatifs | https://ipt.pensoft.net/resource?r=car_agr_nw-ger |