Basic Theoretical Arguments Advocating Jackknife-2 as Usually being the Most Appropriate Nonparametric Estimator of Total Species Richness
Journal Title: Annual Research & Review in Biology - Year 2016, Vol 10, Issue 1
Abstract
A lot of nonparametric estimators of the number of unrecorded species after partial sampling of an assemblage of species, have been proposed in the literature. Unfortunately, these different types of estimators provides substantially divergent predictions. While empirical comparisons have failed to consistently select in favour of one among all these estimators, a new approach, based on more theoretical ground, has proven that among three of the most commonly used nonparametric estimators, Chao, Jackknife-1 and Jackknife-2, the latter was the best choice in most cases while Chao or Jackknife-1 should preferably be restricted to samplings approaching completeness. Here, I propose an alternative approach, aiming also at discriminating between the same three estimators on the basis of another theoretical argument: The necessary compliance with the required “rule of additivity”, according to which, if an assemblage of species is made of several, distinct groups of species, the estimation of species richness for the whole assemblage should be exactly the sum of the estimations of richness for each group of species. Referring to this rule of additivity, the Jackknife series of estimators (and in particular Jackknife-2 when samples remain far from completeness), proves, once again, being satisfactory in full generality. This strengthens the estimators of the Jackknife series as being particularly appropriate to evaluate, in most cases, the number of unrecorded species of a partially sampled assemblage and the corresponding total species richness of the assemblage.
Authors and Affiliations
Jean Béguinot
Keywords
Related Articles
- EP ID EP350970
- DOI 10.9734/ARRB/2016/25104
- Views 111
- Downloads 0
Cadmium Induced Toxicity in Human Peripheral Blood Lymphocytes Culture and Its Amelioration by Vitamin C
Introduction: Cadmium is a ubiquitous and toxic environmental pollutant increasing worldwide due to high consumption in various industries. At the cellular level, cadmium affects cell proliferation, differentiation, apop...
Drought Effects on Soybean Cultivation - A Review
The soybean crop is exposed to many adverse environmental conditions; among them, it is the drought stress, which is responsible for great losses on crop yield. The crops productivity improvement may have a limit due str...
Oxidative Damage and Reproductive Toxicity Associated with Antouka Super® in Male Japanese Quail (Coturnix coturnix japonica): The Protective Effects of Hydroethanolic Leaves Extract of Persea americana
The present study was undertaken to evaluate the protective role of hydroethanolic leaves extract of The present study was undertaken to evaluate the protective role of Hydroethanolic leaves Persea americana (HEPA) again...
Growth and Water-Yield Functions of Dry-Season Fadama-Grown Pepper (Capsicum annuum L.) Under Differential Irrigation in a Rainforest Zone of Nigeria
Field experiments were conducted to assess the effects of differential irrigation on the growth, stress development and water- yield functions of dry season fadama-grown pepper in a humid rainforest zone of Nigeria. The...
Species-specific Loci of Three Indonesian Durio Inferred from ISSR Fingerprinting
Aims: To assess molecular diversity and to determine species-specific loci of Indonesian durio, based on Inter-Simple Sequence Repeat (ISSR) markers. Study Design: Genomic DNA isolation from fresh durio leaves and then D...