Estimating True Species Richness from Braun Blanquet Scale

Aim of study: The goal the study was to estimate true species richness from Braun Blanquet (BB) scale data.
 Area Yazılı Canyon Nature Park (YCNP) located in Mediterranean Region Turkey.
 Material and methods: A bias-corrected approach adapted based on Good-Turning frequency formula (S_est ) for 9 vegetation plots under three scenarios (Rare are singletons: with 1/1 probability 〖(Sc〗_1), 1/2 (〖Sc〗_2), 1/3 〖(Sc〗_3)).
 Main results: results indicate that increasing uncertainty about number singletons, difference between expected observed decreases. To taken YCNP, scenario III (〖Sc〗_3 seems be best option due existing maximum concerning singletons.
 Highlights: All proposed estimators have been developed by considering abundance or incidence-based data except S_est. For employing S_est, all consists singletons (f_1 super doubletons (f_(2+) ). f_1 f_(2+) can obtained BB because its "r" code usually corresponds f_1. However, some scientists prefer use description a few species. That causes an Using this offers spreadsheet program even though is uncertain.
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