English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

SUMMARY An analysis is made of the variatons undergone by diversity on considering six variables of different importance: density, cover, biomass, abundance as a function of density, abundance as a function od cover and frequency. The example proposed includes thirty communities grouped into six types; three of these were typical communities of herbaceous species of the semiarid regions of Western Spain and the other three show different intensities of lignous species. It is concluded that the abundances and frequency are of little interest for the calculation of diversity. Density, cover and biomass form a continuous series which, in the order mentioned, display a greater range of variation between extreme values (positive aspect) and a strong decrease of the influence of richness versus equitability (negative aspect). Owing to this antithesis in quality, cover is chosen as the best parameter or defining diversity.

Influencia sobre la diversidad de los valores de importancia considerados en el muestreo