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Title:
Main Experiment: Trophobioses data site A 2014
Access rights:
Private
Usage rights:
No information available
Published:
No information available
Abstract:
We sampled trophobioses from 29 May to 31 July 2014 and 11 September to 8 October on site A and B dayly alternating between sites (for data on Site B see dataset 567). We selected in total 150 plots from tree diversity level 1, 2, 4, 8 and 16 at both field sites. As the abundance of a tree species in a plot decreases with increasing tree diversity, we increased the number of sampled trees per plot accordingly, summing up to a total of 10 359 trees which were sampled once each. On each tree, 20 randomly selected young leaves and the attached branch sections were visually inspected for the occurrence of sap-sucking Hemiptera and honeydew-collecting ants. Voucher specimens of each trophobiosis were collected with soft insect forceps and stored in 99% ethanol. Hemiptera were grouped into morphospecies and further identified in the lab. Ants were first assorted to genera with Bolton (1994) and then identified to species level whenever possible with primary taxonomic literature and the Antweb Database (www.antweb.org). In a few cases Hemiptera and ants could only be identified to morphospecies, which we also refer to as species.
Design:
No information available
Spatial extent:
BEF China Main Experiment, Site A, near Xingangshan, Jiangxi
Temporal extent:
Mai 2014 - July 2014 (Spring) and September 2014 - October (Autumn)
Taxonomic extent:
Sap-sucking Hemiptera and honeydew-collecting ants
Measurement cirumstances:
No information available
Data analysis:
The data unit of all data is the number of occurrence of trophobiosis, i.e. every interaction between a Hemiptera and an ant species observed on an individual tree was only counted once, regardless of the number of individuals involved. Number of individual Ants and Hemiptera are the sum of the same trophobioses found on one tree.

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Dataset column

Name:
SEASON
Definition:
Sampling season for trophobioses
Unit:
No information available
Datagroup:
Season
Keywords:
time
Values:
Autumn
Spring
Contributors:
No information available

Dataset column

Name:
PLOT_NO
Definition:
Name of each plot, coded with letters and numbers in Site A
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
location
Values:
C32
B34
C31
B35
B38/C38
Contributors:
No information available

Dataset column

Name:
Tree_label
Definition:
Position of a given tree individual per plot given in XXYY
Unit:
No information available
Datagroup:
Position within Main experiment plots
Keywords:
Main Experiment, location
Values:
0404
0406
0408
0407
0405
Contributors:
No information available

Dataset column

Name:
NB_trophobioses
Definition:
Number of trophobiotic interactions observed.
Unit:
count
Datagroup:
Abundance
Keywords:
No information available
Values:
4
3
10
2
1
Contributors:
No information available

Dataset column

Name:
Tree species
Definition:
Tree species
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
No information available
Values:
Castanea henryi
Castanopsis eyrei
Choerospondias axillaris
Castanopsis sclerophylla
Acer davidii
Contributors:
No information available

Dataset column

Name:
Hemiptera_species
Definition:
Full taxonomic name of Hemiptera species. In some cases, nominal taxa were assigned to non-identifiable species to allow for a separation of unknown but obviously morphologically different species
Unit:
No information available
Datagroup:
Hemiptera species name
Keywords:
species, taxon, morphospecies
Values:
Aphis citricidus
Aphis aurantii
Cervaphis quercus
Aphis odinae
Aphis gossypii
Contributors:
No information available

Dataset column

Name:
NB_Hemiptera
Definition:
Number of Hemiptera in trophobiotic interactions observed.
Unit:
count
Datagroup:
Abundance
Keywords:
No information available
Values:
104
1
100
10
1020
Contributors:
No information available

Dataset column

Name:
Ant_species
Definition:
Full taxonomic name of ant species
Unit:
No information available
Datagroup:
Ant species name
Keywords:
species, taxon
Values:
Camponotus albosparsus
Carebara altinodus
Camponotus vitiosus
Carinostigmus SP1
Camponotus pseudoirritans
Contributors:
No information available

Dataset column

Name:
NB_ants
Definition:
Number of Ants in trophobiotic interactions observed.
Unit:
count
Datagroup:
Abundance
Keywords:
No information available
Values:
10
1
11
105
100
Contributors:
No information available

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