Hertzog, Lionel R; Weisser, Wolfgang W (2016): Ant abundance and occurrence along the plant diversity gradient in the Jena Experiment (Main Experiment, year 2013) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.865171, In: Ebeling, Anne; Hertzog, Lionel R; Weisser, Wolfgang W; Meyer, Sebastian Tobias (2016): Collection of data on aboveground invertebrates in the Jena Experiment (time series since 2002) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.865172
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Abstract:
This data set contains measurements of ant abundance (number of individuals attracted to baits) and ant occurrence (binary data) measured in the Main Experiment plots of a large grassland biodiversity experiment (the Jena Experiment; see further details below). In the Main Experiment, 82 grassland plots of 20 x 20 m were established from a pool of 60 species belonging to four functional groups (grasses, legumes, tall and small herbs). In May 2002, varying numbers of plant species from this species pool were sown in the plots to create a gradient of plant species richness (1, 2, 4, 8, 16 and 60 species) and functional richness (1, 2, 3, or 4 functional groups). Plots were maintained by bi-annual weeding and mowing.
Ants where sampled in 80 plots of the Main Experiment using baited traps end of July/ beginning of August 2013. Sampling took place 36 days after the end of a major flooding of the field site that lasted for several weeks (see DOI flood descriptor). In each plot two petri dishes were set on the ground, one received ~10g of Tuna the other ~10g of Honey. After 30min the occurrence (presence = 1 / absence = 0) and abundance (number) of ants at the two baits was recorded. Given is, per plot, the sum of ants attracted to the two different baits.
Related to:
Hertzog, Lionel R; Ebeling, Anne; Meyer, Sebastian Tobias; Eisenhauer, Nico; Fischer, Christine; Hildebrandt, Anke; Wagg, Cameron; Weisser, Wolfgang W (2016): High Survival of Lasius niger during Summer Flooding in a European Grassland. PLoS ONE, 11(11), e0152777, https://doi.org/10.1371/journal.pone.0152777
Further details:
Project(s):
The Jena Experiment (JenExp)
Coverage:
Latitude: 50.946100 * Longitude: 11.611300
Date/Time Start: 2013-01-01T00:00:00 * Date/Time End: 2013-12-31T00:00:00
Minimum HEIGHT above ground: 0.5 m * Maximum HEIGHT above ground: 0.5 m
Event(s):
Comment:
The main experiment on the field site of the Jena Experiment comprises a split-plot design in which additional treatments (e.g. no weeding allowing for invasion of other species, or application of fertilizer) have been applied to subplots along the outer margin of the plots (see Treatment description in the section “further details”). While in this dataset only data from the core area (mown and weeding of all none-sown species twice a year, no additional treatments) is reported, all potential treatments are listed as the first parameters in the data file to guarantee compatibility with other datasets that include different treatments.
This dataset is part of a collection of measurements on aboveground invertebrate abundances and diversities in the Jena Experiment. Data for other taxonomic groups, from other experiments (e.g. Main Experiment, Dominance Experiment; see details above), other years, or other methods quantifying related data might be available (doi:10.1594/PANGAEA.865172).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Experimental plot | Experimental plot | Detailed explanations of plots and the plant diversity gradient are provided in the section "further details". | |||
| 2 | Height aboveground, minimum | Height abovegr min | m | Soil surface | ||
| 3 | Height aboveground, maximum | Height abovegr max | m | rough approximation of maximum vegetation height | ||
| 4 | HEIGHT above ground | Height | m | Geocode – Average of min and max value | ||
| 5 | Date/time start | Date/time start | of sampling campaign | |||
| 6 | Date/time end | Date/time end | of sampling campaign | |||
| 7 | Treatment: mowing | T:mow | Detailed explanations of treatments are provided in the section "further details". | |||
| 8 | Treatment: weeding | T:weed | Detailed explanations of treatments are provided in the section "further details". | |||
| 9 | Treatment: weeding history | T:weed hist | Detailed explanations of treatments are provided in the section "further details". | |||
| 10 | Treatment: seed addition | T:seed add | Detailed explanations of treatments are provided in the section "further details". | |||
| 11 | Treatment: fertilizing | T:fert | Detailed explanations of treatments are provided in the section "further details". | |||
| 12 | Treatment: drought | T:drought | Detailed explanations of treatments are provided in the section "further details". | |||
| 13 | Treatment: aboveground: pesticide | T:abovegr pest | Detailed explanations of treatments are provided in the section "further details". | |||
| 14 | Treatment: below pesticide | T:below pest | Detailed explanations of treatments are provided in the section "further details". | |||
| 15 | Treatment: molluscide | T:mollus | Detailed explanations of treatments are provided in the section "further details". | |||
| 16 | Treatment: nematicide | T:nema | Detailed explanations of treatments are provided in the section "further details". | |||
| 17 | Treatment: eartworm exclosure | T:eartworm excl | Detailed explanations of treatments are provided in the section "further details". | |||
| 18 | Treatment: phytometers | T:phyto | Detailed explanations of treatments are provided in the section "further details". | |||
| 19 | Treatment: special | T:special | Detailed explanations of treatments are provided in the section "further details". | |||
| 20 | Ant occurence | Ant occ | presence = 1 / absence = 0 | |||
| 21 | Ant abundance | Ant abund | # |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1600 data points