CSPs: Parasitoid data

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Dataset Abstract

Trap nests (eigth traps per plot; four traps each attached to a wooden post; located at two randomly selected corners the corners of the central 10 x 10 m subplot) were used to collect the parasiotids of solitary bees and wasps in the CSPs. Parasitoid richness and occurence allow to test to what extent woody plant species richness affects the ecosystem process parasitism. Traps consisted of plastic tubes (diameter 12.5 cm, length 22 cm) that were filled with dried internodes of the ree Arundo donax L. (2-20 mm diameter). Trap nests were exposed from August 2011 to October 2012. All trap nests were monthly checked for nests of solitary bees and wasps (hosts). The nests were reared in the laboratory till hatching of hosts and the associated parasitoids. Taxa were first sorted to morphospecies and then identified to species level with the help of taxonomic experts whenever possible. Data reported are parasitized brood cells, i.e. the number of host brood cells that was attacked by a parasitoid species. The use of this data type is necessary as abundance data for parasitoids are not meaningful because some gregarious parasitoid species may occur with very many individuals in a brood cell.

Dataset Design

Trap nests (eigth traps per plot; four traps each attached to a wooden post; located at two randomly selected corners the corners of the central 10 x 10 m subplot)

Spatial Extent

Comparative Study Sites

Temporal Extent

August 2011 - October 2012

Taxonomic Extent

Parasitoids of solitary cavity-nesting Hymenoptera

Data Analysis

The data allow to test to what extent woody plant species richness affects the species composition and diversity of parasitoids and the ecosystem process parasitism. For plant woody species richness, refer to the dataset "Comparative study plot (CSP) information to be shared with all BEF-China scientists" (http://china.befdata.biow.uni-leipzig.de/datasets/205). --- As in most ecological information is shared between members of a family, the family names are provided as separate data colum. ---- Individual numbers presented are parasitized brood cell numbers, i.e. the number of brood cells parasitized by each species in a given trap.

Data columns available in the raw data part of this dataset

CSP
Number of the Comparative Study Plot; Datagroup description: BEF research plot name; Datagroup description: Reasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground. Main Experiment plots have a size of 1 mu, which is about 25x25m^2 in horizontal projection. Pilot Study Plots have a size of 1x1 m^2. Research plots on the main experiment have a "p" in front of their IDs and then a 6 digit code: Plots in the main sites A and B are named according to their position in the original spreadsheet, in which they were designed. They consist of 6 digits: _1st digit_: Site (1:A, 2:B), _digit 2and3_: southwards row: as in spreadsheets the rows are named from the top to the bottom; _digit 4 and 5_: westward column: as in the original spreadsheet, but the letters are converted to numbers (A=01, B=02); _6th digit_: indicator, if the plot has been shifted a quarter mu. Example: "p205260": "p" means that this is a plot that is specified. "2" means, that we are at site B. Now the coordinates of the south - west corner: "0526". Since "e" is the fifth letter of the alphabet, this is Plot E26. The last digit "0" means that this plot was not moved by a quarter of a Mu, as some sites in Site A. The 6th digit can also indicate the subplot within the plot. "5", "6", "7", "8" indicate the northwest, northeast, southeast, and southwest quarter plot respectively.
Data group: BEF research plot name
Keywords: location
Values
CSP04
CSP05
CSP02
CSP03
CSP01
Trap_nest
Location of the trap nest; Datagroup description: Trap nests were located at randomly choosen corners of the central 10m x 10m subplot.
Data group: Trap location within the Comparative Study Sites.
Keywords: CSP, location
Values
CSP01_II-
CSP01_III
CSP01_I
CSP01_I-
CSP01_II
host_family
Family of the host species. As most ecological information is shared between members of a family, the family names are provided as separate data colum.; Datagroup description: Helper
Data group: Higher arthropod taxa
Keywords: family, taxon
Values
Megachilidae
Sphecidae
Pompilidae
Vespidae
host_species
Host species name. Contains species as well as morphospecies. For the ease of analysis, words were concatenated with "_".
Data group: Helper
Keywords: species, taxon
Values
Anterhynchium_flavomarginatum_curvimaculatum
Deuteragenia_ossarium
Chalybion_japonicum
Anterhynchium_flavomarginatum_flavomarginatum
Auplopus_sp.4
host_species_tax
Host species name full taxonomy
Data group: Host species name
Keywords: species, taxon, parasite host
Values
Anterhynchium flavomarginatum var flavomarginatum
Chalybion japonicum
Anterhynchium flavomarginatum var curvimaculatum
Auplopus sp.4
Deuteragenia ossarium
parasitized_broodcells
Number of parasitized brood cells collected per species from trap nests.; Datagroup description: Organism count; Datagroup description: Counting the occurrence of a given taxon, also called abundance.
Data group: Abundance
Keywords: abundance
Values
3
4
2
5
1
parasite_family
Family of the species. As most ecological information is shared between members of a family, the family names are provided as separate data colum.; Datagroup description: Helper
Data group: Higher arthropod taxa
Keywords: family, taxon
Values
Chrysididae
Eurytomidae
Braconidae
Ichneumonidae
Drosophilidae
parasite_species
Name of parasite/parasitoid species species. Contains species as well as morphospecies. For the ease of analysis, words were concatenated with "_".
Data group: Helper
Keywords: species, taxon
Values
Apanteles_sp.
Chrysis_principalis
Coelioxys_ducalis
Coelioxys_brevicaudata
Braconidae_sp.1
parasite_species_tax
Name of parasite species.
Data group: Parasitoid species name
Keywords: species, taxon, parasite
Values
Euaspis basalis
Coelioxys ducalis
Chrysis principalis
Coelioxys brevicaudata
Lycogaster flavonigrata
nominal_parasite species
Name of parasite species. Conatins nominal taxonomy , including species as well as morphospecies
Data group: Nominal taxon
Keywords: species, taxon, parasite
Values
Eurytoma sp.
Braconidae sp.1
Ichneumonidae sp.1
Drosophilidae sp.1
Apanteles sp.