Incorporation of phylogeny in biological diversity measurement: Drawbacks of extensively used indices, and advantages of quadratic entropy

Mérigot, Bastien; Gaertner, Jean‐Claude

doi:10.1002/bies.201100103

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…There is a burning question of defining and selecting systems for biodiversity assessment that is still focus extensively and strongly polemic [29][30][31][32][33][34][35][36]. Diversity index provides vital information about the rarity and commonness of a species in a community and is an essential tool for biologists to understand community structure.…”

Section: Discussionmentioning

confidence: 99%

The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh

Ma¹,

Mab²,

Nahar³

et al. 2016

J Biodivers Endanger Species

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Small indigenous fish species (SIS) play a vital role in providing animal protein sources for human. The Gorai river, a Ganges tributary is a habitat of considerable number of SIS. A total of 11040 individual from 40 species were collected belonging 7 orders and 19 families using 5 fishing nets and 1 fish trap of which 2 species were critically endangered, 7 endangered, 7 species vulnerable, 18 species not threatened, 2 data deficient and 4 species were not in evaluated category. Dominant orders were Cypriniformes and Perciformes each contained 12 species, dominant family was Cyprinidae (11 species) and most dominant species was Chela cachius (2253 individuals). Diversity indices ranges from Simpson's dominance index (0.06-0.09), Simpson's index (0.91-0.94), Shannon Weiner index (3.08-3.24), Evenness (0.56-0.66), Menhinick's index (0.61-0.67), Margalef's index (4.48-4.77), Equitability (0.84-0.89) and Fisher alpha (5.86-6.31), respectively. Highest numbers (38) of SIS were caught by set bag net. Maximum total length 4.6 cm of Corica soborna was the new record. Considering the nutritional importance and reducing number of SIS inhabiting in the river Gorai, the present study aimed at documentation of SIS, their threatened status and conservation of SIS through laws and regulations.

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Section: Discussionmentioning

confidence: 99%

The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh

Ma¹,

Mab²,

Nahar³

et al. 2016

J Biodivers Endanger Species

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show abstract

“…In contrast to Hall and Greenstreet (1998), we found that average taxonomic distinctness ( *) is not always positively correlated with species diversity, demonstrating that it is possible to have diverse species assemblages that are composed of species that are related at higher taxonomic levels, while exhibiting low species diversity due to numeric dominance of a few species. However, in simple communities (consisting of fewer than nine species), taxonomic distinctness metrics may lead to counter-intuitive or spurious results, though how these metrics behave with more complex species assemblages is unknown (Mérigot and Gaertner 2011). Alternatively, observed correlations among diversity metrics for fish communities may arise if the taxonomic range of the samples is restricted (compared with the benthic invertebrate community from which taxonomic relatedness indices arose).…”

Section: James Rivermentioning

confidence: 99%

Influence of Survey Design on Fish Assemblages: Implications from a Study in Chesapeake Bay Tributaries

Tuckey

Fabrizio

2013

Trans Am Fish Soc

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Aquatic resource surveys that span multiple decades provide valuable information about fish population responses to environmental and human-induced changes. Often, surveys are altered as scientific objectives change or in response to management needs. These modifications usually result in inconsistencies in the time series, which must be addressed for proper analysis of fish community data. Since 1997, juvenile fishes in Virginia tributaries of Chesapeake Bay have been captured monthly using a bottom trawl at both fixed and random sites. Previous surveys in these tributaries were conducted at fixed sites only; thus, an understanding of the effect of this design change would allow us to infer fish community status through multiple decades. We compared samples from the fixed site design with those from the stratified random design in the James, York, and Rappahannock rivers and examined species composition, biodiversity, relative abundance estimates, and size distributions to understand the effects of survey design on these metrics. Catches from random sites were characterized by consistently higher species richness than those from fixed sites; biodiversity metrics varied by sampling site type (fixed versus random) and river. For most select species, we observed similar trends in relative abundance regardless of site type; however, for some species we noted differences in magnitude among years and between sampling site types. Community metrics, such as taxonomic diversity and distinctness, revealed subtle differences about fish species assemblages compared with traditional diversity metrics demonstrating that community metrics can characterize biodiversity of fishes at higher taxonomic levels. Thus, species-specific and community metrics derived from assemblage data from fixed-site surveys may not fully represent the magnitude of change in demersal fish assemblages, but can provide reliable indicators of patterns of change in abundance through time.

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“…While PD is regarded as the “phylodiversity metric of choice in conservation research,” there are now many measures that use the phylogenetic pattern as a way to quantify aspects of biodiversity (for review, see Refs. ). The studies referred to above all use the term PD sensu Faith .…”

Section: Introductionmentioning

confidence: 97%

Biodiversity and evolutionary history: useful extensions of the PD phylogenetic diversity assessment framework

Faith

2013

Annals of the New York Academy of Sciences

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Evolutionary biology is a core discipline in biodiversity science. Evolutionary history or phylogeny provides one natural measure of biodiversity through the popular phylogenetic diversity (PD) measure. The evolutionary model underlying PD means that it can be interpreted as quantifying the relative feature diversity of sets of species. Quantifying feature diversity measures possible future uses and benefits or option values. Interpretation of PD as counting-up features is the basis for an emerging broad family of PD calculations, of use to both biodiversity researchers and decision makers. Many of these calculations extend conventional species-level indices to the features level. Useful PD calculations include PD complementarity and endemism, Hill and Valley numbers incorporating abundance, and PD dissimilarities. A flexible analysis framework is provided by expected PD calculations, applied to either probabilities of extinction or presence-absence. Practical extensions include phylogenetic risk analysis and measures of distinctiveness and endemism. These support the integration of phylogenetic diversity into biodiversity conservation and monitoring programs.

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Incorporation of phylogeny in biological diversity measurement: Drawbacks of extensively used indices, and advantages of quadratic entropy

Cited by 5 publications

References 28 publications

The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh

The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh

Influence of Survey Design on Fish Assemblages: Implications from a Study in Chesapeake Bay Tributaries

Biodiversity and evolutionary history: useful extensions of the PD phylogenetic diversity assessment framework

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