A named numeric vector of species abundances for a single forest community with 8 Anatolian tree species. Abundance values follow the Westhoff & van der Maarel (1973) scale (1–9). This vector mirrors the hypothetical example in Ozkan (2018).
Format
A named numeric vector with 8 elements. Names are species binomials (underscore-separated); values are integer abundances (1–4).
Details
The species include 3 genera from Pinaceae, 2 from Fagaceae, 1 each from Cupressaceae and Betulaceae, spanning 2 orders (Pinales, Fagales).
Pair with campus_gytk for analysis:
ozkan_pto(campus_comm, campus_gytk)
compare_indices(campus_comm, campus_gytk)References
Ozkan, K. (2018). A new proposed measure for estimating taxonomic diversity. Turkish Journal of Forestry, 19(4), 336–346.
Ozkan, K. & Mert, A. (2022). Comparisons of Deng entropy-based taxonomic diversity measures with the other diversity measures and introduction to the new proposed (reinforced) estimators. FORESTIST, 72(2). DOI: 10.5152/forestist.2021.21025
See also
campus_gytk for the matching taxonomy,
anatolian_trees and med_forest for
multi-site datasets.
Examples
data(campus_comm)
data(campus_gytk)
# Ozkan pTO
ozkan_pto(campus_comm, campus_gytk)
#> taxdiv -- Ozkan pTO Result
#>
#> All levels:
#> uTO : 6.828164
#> TO : 10.00622
#> uTO+ : 7.014319
#> TO+ : 10.19237
#>
#> Max informative level (level 3):
#> uTO_max : 6.828164
#> TO_max : 10.00622
#> uTO+_max : 7.014319
#> TO+_max : 10.19237
#>
#> Deng entropy by level:
#> Species: 2.079442
#> Genus: 2.282174
#> Family: 2.714915
#> Order: 3.401197
# All indices at once
compare_indices(campus_comm, campus_gytk)
#> taxdiv -- Index Comparison
#> Communities: 1
#> Indices: Shannon, Simpson, Delta, Delta_star, AvTD, VarTD, uTO, TO, uTO_plus, TO_plus, uTO_max, TO_max, uTO_plus_max, TO_plus_max
#>
#> Community N_Species Shannon Simpson Delta Delta_star AvTD VarTD
#> Community 8 2.013806 0.858726 2.444444 2.696774 2.714286 0.346939
#> uTO TO uTO_plus TO_plus uTO_max TO_max uTO_plus_max TO_plus_max
#> 6.828164 10.00622 7.014319 10.19237 6.828164 10.00622 7.014319 10.19237