Title:
Earthworm data of the exploratory region in Italy (March 2012)
Access rights:
Free within projects
Usage rights:
No information available
Published:
No information available
Abstract:
The belowground foodweb holds a big part of the associated biodiversity in forest ecosystems and plays a major role in litter decomposition and nutrient turnover. So far important interactions between diversity and composition of above- and belowground foodwebs have been observed, however, without being conclusive on the effects of tree species diversity on the belowground foodweb. The response of earthworms as important functional group in the soil ecosystem is assessed. The earthworm sampling records the abundance, biomass and species diversity of earthworms in each focal region. All (30 x 30) m2 plots are divided in nine (10 x 10) m2 subplots. In every plot, earthworms were sampled in the middle subplot. First (if present), a central litter sample (25x25cm) is taken followed by the 'mustard extraction method' over an area of 0,5 m² (0.5x1m) and a final soil sample (25x25x20cm) (length, width, depth) in the middle of this location. Litter and soil samples were taken to the lab for further handsorting, whereby the pit left after sampling was levelled off with surrounding soil. Sampled earthworms are stored in 70% ethanol solution.
Design:
For every plot of the focal region, plots (30 x 30) m2 are divided in nine (10 x 10) m2 subplots. In every plot, earthworms were sampled in the middle subplot. In principle, within every middle subplot, the samples are taken randomly, but samples are not taken close to tree stems. First (if present), a central litter sample (25x25cm) is taken followed by the 'mustard extraction method' over an area of 0,5 m² (0.5x1m) and a final soil sample (25x25x20cm) (length, width, depth) in the middle of this location. When no litter is present, no litter sample could be taken and only a mustard extraction and soil sample is carried out. Litter and soil samples were taken to the lab for further handsorting, whereby the pit left after sampling was levelled off with surrounding soil. Sampled earthworms are stored in 70% ethanol solution.
Spatial extent:
Belagaio forest and foresta di Berignone-Tatti, Tuscany, Italy
Temporal extent:
Spring 2012
Taxonomic extent:
Earthworms
Measurement cirumstances:
No information available
Data analysis:
No information available
Filter:
Dataset column
Name:
Date
Definition:
Data of sampling
Unit:
No information available
Datagroup:
Sampling moment
Keywords:
No information available
Values:
| 2012-03-19 00:00:00 |
| 2012-03-18 00:00:00 |
| 2012-03-16 00:00:00 |
| 2012-03-17 00:00:00 |
| 2012-03-20 00:00:00 |
Contributors:
No information available
Dataset column
Name:
Time
Definition:
Time of sampling
Unit:
No information available
Datagroup:
Sampling moment
Keywords:
No information available
Values:
| 1899-12-30 09:12:00 |
| 1899-12-30 08:41:00 |
| 1899-12-30 09:24:00 |
| 1899-12-30 09:18:00 |
| 1899-12-30 08:50:00 |
Contributors:
No information available
Dataset column
Name:
PlotID
Definition:
Unique plot id
Unit:
No information available
Datagroup:
Exploratory plot id
Keywords:
No information available
Values:
| ITA02 |
| ITA05 |
| ITA04 |
| ITA01 |
| ITA03 |
Contributors:
No information available
Dataset column
Name:
Name sampler
Definition:
Name of person who sampled the earthworms
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
| NA |
| Eric Van Beek |
| Fabrizio Fioravanti |
Contributors:
No information available
Dataset column
Name:
Sampling method
Definition:
Method of sampling: L=Litter sample; M=Mustard extraction; S=Soil sample
Unit:
No information available
Datagroup:
Sampling method
Keywords:
No information available
Values:
| L |
| M |
| S |
Contributors:
No information available
Dataset column
Name:
Slope length
Definition:
Lengthwise slope of the sampled area. Value 0 if slope <5°; Datagroup description: Slope of the sampled area.
Unit:
degree
Datagroup:
Topography
Keywords:
No information available
Values:
| 13 |
| 10 |
| 0 |
| 14 |
| 12 |
Contributors:
No information available
Dataset column
Name:
Slope width
Definition:
Width-wise slope of the sampled area. Value 0 if slope <5°; Datagroup description: Slope of the sampled area.
Unit:
degree
Datagroup:
Topography
Keywords:
No information available
Values:
| 0 |
| 11 |
| 10 |
| 12 |
| 14 |
Contributors:
No information available
Dataset column
Name:
Sample code
Definition:
Sample point code (year/sampling responsible/country/chronological number of sampling action)
Unit:
No information available
Datagroup:
Sample code
Keywords:
No information available
Values:
| 12HWIE002 |
| 12HWIE001 |
| 12HWIE005 |
| 12HWIE003 |
| 12HWIE004 |
Contributors:
No information available
Dataset column
Name:
Date on formol
Definition:
Date on which the earthworm fixation in a 5% formaldehyde solution started
Unit:
No information available
Datagroup:
Fixation moment
Keywords:
No information available
Values:
| NA |
| 2012-04-04 00:00:00 |
Contributors:
No information available
Dataset column
Name:
Date back on ethanol
Definition:
Date on which the earthworm is transferred from formaldehyde solution to 70% ethanol solution
Unit:
No information available
Datagroup:
Preservation moment
Keywords:
No information available
Values:
| 2012-08-17 00:00:00 |
| NA |
Contributors:
No information available
Dataset column
Name:
Date Identification
Definition:
Data of earthworm identification
Unit:
No information available
Datagroup:
Identification moment
Keywords:
No information available
Values:
| 2014-03-06 00:00:00 |
| 2014-01-20 00:00:00 |
| 2014-02-25 00:00:00 |
| NA |
| 2014-02-26 00:00:00 |
Contributors:
No information available
Dataset column
Name:
Name observer - identifier
Definition:
Name of person who identified and weighed the earthworm
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
| NA |
| Jorgen Opdebeeck |
Contributors:
No information available
Dataset column
Name:
Species
Definition:
Earthworm species name, identified with the key of Bouché 1972, Sims and Gerard 1999 and with help of an Italian earthworm taxonomist Emilia Rota
Unit:
No information available
Datagroup:
Earthworm species
Keywords:
No information available
Values:
| Octolasion sp. |
| No earthworms found |
| Undetermined |
| A sp. |
| Dendrobaena sp. |
Contributors:
No information available
Dataset column
Name:
Development stage
Definition:
Developmental stage of the earthworm: A= adult; S= subadult; J= juvenile ; / = development stage not determinable (Adult = clitellum, tubercula pubertatis and male pore developped; Subadult= clitellum, tubercula pubertatis and male pore not fully developped; Juvenile= no clitellum, tubercula pubertatis and male pore present)
Unit:
No information available
Datagroup:
Earthworm descriptor
Keywords:
No information available
Values:
| S |
| J |
| / |
| NA |
| A |
Contributors:
No information available
Dataset column
Name:
Biomass
Definition:
weight of the individual earthworm. 0 means no worm in sample
Unit:
gram
Datagroup:
Earthworm biomass
Keywords:
No information available
Values:
| 0.005 |
| 0.002 |
| 0.003 |
| 0 |
| 0.004 |
Contributors:
No information available
Dataset column
Name:
Body part
Definition:
Description of which part of the organism is sampled: Complete = entire organism; Head = only the rostral part; Tail = only the caudal part; Middle piece = only a middle part
Unit:
No information available
Datagroup:
Earthworm descriptor
Keywords:
No information available
Values:
| Complete |
| NA |
| Middle piece |
| Tail |
| Head |
Contributors:
No information available
Dataset column
Name:
Density
Definition:
Number of earthworm individuals scaled up to m², without additional correction for slope of the sampled area; 0 means no worms in sample
Unit:
number
Datagroup:
Earthworm density
Keywords:
No information available
Values:
| 0 |
| 2 |
| 16 |
Contributors:
No information available
Dataset column
Name:
Biomass per square meter
Definition:
Weight of the earthworm scaled up to 1m², without additional correction for slope of the sampled area; 0 means no worms in sample
Unit:
gramsPerSquareMeter
Datagroup:
Earthworm biomass
Keywords:
No information available
Values:
| 0.006 |
| 0.004 |
| 0.008 |
| 0.01 |
| 0 |
Contributors:
No information available
No information available
No information available
No information avialable
No information available
No information available
No information available
No information available
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