Exploratory plot diversity indices - based on basal area

Usage Rights

This data is Free for members.

Dataset Abstract

This dataset contains the calculation of species richness index, Shannon's index, Simpson's Index and Pielou's evenness index for each plot and region, based on basal area.

Each index has been calculated twice, once using only the focal species for the region and secondly using all species present in the plot.

The script to calculate the indices can be found under the Tree community composition, diversity and regeneration project on this portal.

Spatial Extent

Finland, Spain, Italy, Romania, Poland and Germany

Taxonomic Extent

Indices based on: 1) all focal species in the region; and 2) all species in the plot

Data columns available in the raw data part of this dataset

REGION
REGION
Data group: Exploratory region
Values
Finland
Germany
Poland
Italy
Romania
PlotID
PLOT
Data group: Exploratory plot id
Values
FIN02
FIN03
FIN01
FIN04
FIN05
Target_Species_Richness
Number of target species in the plot. It should be the same as species richness in the plot descriptor file
Data group: Species richness
Values
1
3
5
4
2
SpeciesRichness_Focals
species richness, taking into account focal species within the plot: S0=-Σpi0; Source: Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375.; Source: Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375.
Data group: Species richness
Keywords: diversity
Values
3
2
4
1
5
* Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375. also contributed to this column.
ShannonIndex_Focals
The Shannon index: H0=-Σ(pi*lnpi), calculated with focal species; Diversity and entropy. Oikos 113(2): 363-375.; Source: 1) Levine, J. M. & HilleRisLambers, J. 2009. The importance of niches for the maintenance of species diversity. Nature 461, 254–257. 2) Jost, L. 2006.; Source: 1) Levine, J. M. & HilleRisLambers, J. 2009. The importance of niches for the maintenance of species diversity. Nature 461, 254–257. 2) Jost, L. 2006.
Data group: Diversity measure
Keywords: diversity
Values
0.0372563636791119
0.0329474718392268
0.0207316116690479
0.0239671942202056
0
* 1) Levine, J. M. & HilleRisLambers, J. 2009. The importance of niches for the maintenance of species diversity. Nature 461, 254–257. 2) Jost, L. 2006. also contributed to this column.
TrueShannonIndex_Focals
True diversity based on Shannon index, only taking into account focal species: exp(H)
Data group: Diversity measure
Keywords: diversity
Values
1.03795908174149
1.02425671579918
1
1.03349625015828
1.02094800433275
SimpsonsIndex_Focals
The Simpson's index: D=Σpi2, calculated with focal species; Source: Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375.; Source: Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375.
Data group: Diversity measure
Keywords: diversity
Values
0.220702751411568
0.217389050334955
0.234457628839589
0.23158820147132
0.240575997435255
* Jost, L. 2006. Diversity and entropy. Oikos 113(2): 363-375. also contributed to this column.
TrueSimpsonsIndex_Focals
True diversity based on Simpson's index, only taking into account focal species: 1/D
Data group: Diversity measure
Keywords: diversity
Values
1.00674927800325
1.0061251379164
1
1.01061344557976
1.01230155155028
PielousIndex_Focals
Pielou's evenness index: J=(H/Ln(S), only taking into account focal species.
Data group: Diversity measure
Keywords: diversity
Values
0.0299093933445711
0.0475331542322813
0
0.0537495711214105
0.0218158803314151
SpeciesRichness_All
species richness, taking into account all species within the plot (focal+ others species): S1=-Σpi0
Data group: Species richness
Keywords: diversity
Values
1
10
4
2
3
ShannonIndex_All
The Shannon index: H1=-Σ(pi*lnpi), calculated with all species.
Data group: Diversity measure
Keywords: diversity
Values
0.0372563636791119
0.026345915756404
0.0160181783353136
0
0.0349192363510965
TrueShannonIndex_All
True diversity based on Shannon index, taking into account all species (focal + others species): exp(H)
Data group: Diversity measure
Keywords: diversity
Values
1.02669603739085
1
1.01614715710195
1.03553607175053
1.03795908174149
SimpsonsIndex_All
The Simpson's index: D=Σpi2, calculated with all species (focal + others species)
Data group: Diversity measure
Keywords: diversity
Values
0.181105793575642
0.221049259045555
0.21601920384007
0.215949269490776
0.217389050334955
TrueSimpsonsIndex_All
True diversity based on Simpson's index,taking into account focal+ others species: 1/D
Data group: Diversity measure
Keywords: diversity
Values
1.00452755358857
1
1.00969180252136
1.00813006540092
1.01230155155028
PielousIndex_All
Pielou's evenness index: J=(H/Ln(S), taking into account focal species + others
Data group: Diversity measure
Keywords: diversity
Values
0
0.0380091220094425
0.0251889045576783
0.023109346448432
0.0524672001742255