Citation:

PANGAEA.923220

Name: Stability metrics calculation at the Jena Experiment field
Published: 2020-09-29
License: https://creativecommons.org/licenses/by/4.0/
Keywords: asynchrony; co-occurrence history; disturbance; Flood; grassland biodiversity; recovery; resistance; selection

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Keyword(s):

asynchrony; co-occurrence history; disturbance; Flood; grassland biodiversity; recovery; resistance; selection

Related to:

van Moorsel, Sofia J; Hahl, Terhi; Petchey, Owen L; Ebeling, Anne; Eisenhauer, Nico; Schmid, Bernhard; Wagg, Cameron (accepted): Co‐occurrence history increases ecosystem stability and resilience in experimental plant communities. Ecology, https://doi.org/10.1002/ecy.3205

Project(s):

The Jena Experiment (JenExp)

Coverage:

Latitude: 50.946100 * Longitude: 11.611300

Event(s):

Jena_Experiment (Jena Experiment) * Latitude: 50.946100 * Longitude: 11.611300 * Location: Thuringia, Germany * Method/Device: Experiment (EXP)

Comment:

NOTE for reproducibility of our results

For all our analyses, we removed three plots from the original design (in all cases both split-split plots containing new/old communities)

B1A12, quadrat with Org soil

This 8-species mixture had to be excluded because of missing data and the data not accurately representing the plant community.

B2A05

Festuca pratense monoculture had to be exlucded because the wrong species was planted.

B2A15

Onobrychis viciifolia monoculture had to be excluded because it was such an extreme outlier and the data did not accurately represent the community.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Experimental plot	Experimental plot		van Moorsel, Sofia J		Experimental plot at the field site. There were four blocks (B1, B2, B3, B4) and within each block there were 12 communities
2	History	History		van Moorsel, Sofia J		Soil history (soil treatment)
3	History	History		van Moorsel, Sofia J		Plant history (selected vs. naive)
4	Species richness	S		van Moorsel, Sofia J		4 levels: 1, 2, 4 ,8
5	Biomass	Biom	g/m²	van Moorsel, Sofia J		Mean dried aboveground biomas
6	Biomass, standard deviation	Biom std dev	±	van Moorsel, Sofia J
7	Temporal Stability	Temp stab		van Moorsel, Sofia J	Calculated	Mean divided by the standard deviation: the stability of community aboveground biomass is the inverse coefficient of combined intra- and inter-annual variation among sequential spring and summer harvests. The stability of a single community was thus the mean community aboveground biomass divided by its standard deviation.
8	Coefficient of variation	CV		van Moorsel, Sofia J	Calculated	Coefficient of variation (inverse of stability)
9	Synchrony index	Synchr I		van Moorsel, Sofia J	Calculated after Loreau and de Mazancourt (2008)	Calculated as the "synchrony index" which ranges between 0 and 1
10	Coefficient of variation	CV		van Moorsel, Sofia J	Calculated	Population CV: Stability of biomass at the population level was calculated as the average stability of biomass of individual species (Thibaut and Connolly 2013).
11	Species turnover	Species turn		van Moorsel, Sofia J	After Bray & Curtis (1957)	Before the flood
12	Species turnover	Species turn		van Moorsel, Sofia J	After Bray & Curtis (1957)	After the flood
13	Species turnover	Species turn		van Moorsel, Sofia J	Calculated	Before vs. after the flood
14	Biomass, resistance	Biom resist		van Moorsel, Sofia J	Calculated	Resistance is the difference in community biomass between the average of the three harvests before the flood and the community biomass two months after the flood (August 2013), more negative values indicating lower resistance.
15	Biomass, resistance	Biom resist		van Moorsel, Sofia J	Calculated	Relative resistance (adjusted for pre-flood biomass)
16	Biomass, recovery	Biom recov		van Moorsel, Sofia J	Calculated	Recovery is the difference between the biomass produced after recovery from the flood (averaged over the three last harvests) and the biomass two months after the flood (August 2013), where positive values indicate the amount of biomass recovered.
17	Biomass, recovery	Biom recov		van Moorsel, Sofia J	Calculated	Relative recovery (adjusted for pre-flood biomass)
18	Biomass, resilience	Biom resilience		van Moorsel, Sofia J	Calculated	Resilience is the difference between the average biomass of the three harvests before the flood and the average biomass of the three harvests after recovery.
19	Biomass, resilience	Biom resilience		van Moorsel, Sofia J	Calculated	Relative resilience (adjusted for pre-flood biomass)
20	Biomass	Biom	g/m²	van Moorsel, Sofia J	Calculated	Before the flood
21	Temporal Stability	Temp stab		van Moorsel, Sofia J	Calculated = mean/SD	Before the flood
22	Temporal Stability	Temp stab		van Moorsel, Sofia J	Calculated = mean/SD	After the flood
23	Temporal Stability	Temp stab		van Moorsel, Sofia J	Calculated = mean/SD	With the biomass harvest in 2013 excluded
24	Number of harvests	N harvests	#	van Moorsel, Sofia J		Before the flood
25	Number of harvests	N harvests	#	van Moorsel, Sofia J		After the flood
26	Species richness	S		van Moorsel, Sofia J	Log (x+1) transformed
27	Species richness	S		van Moorsel, Sofia J	Factor analysis
28	Duration, number of days	Duration	days	van Moorsel, Sofia J		Number of days with water in the plots
29	Sum	Sum		van Moorsel, Sofia J	Calculated	Flooding index * number of days
30	Flooding index	Flood I		van Moorsel, Sofia J
31	-	-		van Moorsel, Sofia J		Synchrony with the biomass harvest in 2013 excluded
32	-	-		van Moorsel, Sofia J		Population CV with the biomass harvest in 2013 excluded

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

8986 data points

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