Description
Habitat loss is currently one of the largest threats to biodiversity worldwide, but an increasing number of studies show that accounting for past habitat loss is essential to understanding current distributional patterns. Hollow oaks (Quercus spp.) are important habitats for species that depend on deadwood. We used a gradient spanning 40 km from the coast to inland areas reflecting historical logging intensity through 500 years in Southern Norway, to investigate if the historical variation in oak density is influencing the structure of beetle communities in hollow oaks today. We trapped beetles in 32 hollow oaks along this gradient. The current dataset contains data from 2014, but not 2013 which also was included in the study (and is available through Norway's Species Map Service, http://artskart.artsdatabanken.no). We selected hollow oaks Quercus robur and Q. petraea along a coast-inland gradient in two regions, Agder and Larvik, in southern Norway. Agder is situated in the south, with hollow oaks from the coast to 40 km inland, while Larvik is located in the southeast with hollow oaks from the coast to 25 km inland. We sampled 16 hollow oaks in each region. Our study included trees in forest (n = 17) and semi-natural habitats (n = 15). The latter represents oaks in forest edges along fields or close to settlements. Each oak was sampled for insects using two flight interception traps (window size 20 × 40 cm) for each oak, one in front of the cavity opening and one in the canopy. The insect traps were active from mid-May to mid-August in 2014, and emptied once a month. All beetle species caught were determined to species.
Data Records
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 96 records.
1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Norwegian University of Life Sciences (NMBU). This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 9cc6fab1-4652-47ec-b89b-db2950629372. Norwegian University of Life Sciences (NMBU) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Norway.
Keywords
Samplingevent; Quercus; veteran tree; extinction debt; spatial scales; Coleoptera; saproxylic; historical logging; temporal scale
Contacts
- Metadata Provider ●
- Author ●
- Originator ●
- Point Of Contact
- Author
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Geographic Coverage
Southern Norway
| Bounding Coordinates | South West [57.751, 4.131], North East [60.457, 11.426] |
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Taxonomic Coverage
No Description available
| Order | Coleoptera |
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Bibliographic Citations
- Pilskog, H.E. 2016 Effects of climate, historical logging and spatial scales on beetles in hollow oaks. PhD-thesis. Norwegian University of Life Sciences, NMBU, Ås, Norway. p. 212
Additional Metadata
| Alternative Identifiers | 9cc6fab1-4652-47ec-b89b-db2950629372 |
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| https://ipt.gbif.no/resource?r=hollow-oaks |