Disentangling and Quantifying the Functional Determinants of Species Abundance Unevenness in Ecological Communities
Advances in Research · pp. 1–14 · Published 14 May 2019
10.9734/air/2019/v19i130114Abstract
Species richness and species abundance unevenness are two major synthetic descriptors of the internal organization within ecological communities. Yet, while the former is a simple concept in essence, the unevenness of species abundance distribution is less so, being partly linked (negatively) to species richness as a general trend while, yet, more or less deviating from this average trend according to idiosyncratic specificities of each community (a bit similar to the size among individuals of a same species, which depend on age but more or less deviates due to inter-individual differences in growth rate which singularizes each individual). I argue that for abundance unevenness it is therefore relevant to consider and quantify separately these two aspects – the overall trend on the one hand and the idiosyncratic deviation from this trend on the other hand. In particular, comparing abundance unevenness levels between communities differing in species richness requires considering separately what has to be directly assigned to the difference in species richness and what can be relevantly attributed to some genuine, idiosyncratic difference in the hierarchical structuring of abundances between the compared communities. The appropriate formalism arising from this approach is detailed for practical implementation, thereby allowing for a deeper understanding of the ins and outs of the functional organization within ecological communities.
References (6)
- 1 Functional Rarity: The Ecology of Outliers [DOI]
- 2 Assessing species abundance unevenness within and between plant communities [DOI]
- 3 Theoretical Derivation of a Bias-reduced Expression for the Extrapolation of the Species Accumulation Curve and the Associated Estimation of Total Species Richness [DOI]
- 4 How to Extrapolate Species Abundance Distributions with Minimum Bias When Dealing with Incomplete Species Inventories [DOI]
- 5 Numerical Extrapolation of the Species Abundance Distribution Unveils the True Species Richness and the Hierarchical Structuring of a Partially Sampled Marine Gastropod Community in the Andaman Islands (India) [DOI]
- 6 Extrapolation of the Species Accumulation Curve Associated to “Chao” Estimator of the Number of Unrecorded Species: A Mathematically Consistent Derivation [DOI]
Cited by 8
Jean Béguinot · Asian Journal of Environment & Ecology · 2019
Jean Béguinot · Asian Journal of Environment & Ecology · 2019
Jean Béguinot · Annual Research & Review in Biology · 2021
Jean Béguinot · International Journal of Environment and Climate Change · 2021
J. Béguinot · 2021
J. Béguinot · Asian Journal of Environment & Ecology · 2019
J. Béguinot · Asian Journal of Environment & Ecology · 2019
Showing 7 of 8 known citations — external sources report more than can currently be individually listed.
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