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dc.contributor.authorQuintana Pou, Francisco Javier de
dc.contributor.authorEgozcue Rubí, Juan José
dc.contributor.authorMartinez Abella, Omar
dc.contributor.authorLopez Florez, Rocio
dc.contributor.authorGascon, Stephanie
dc.contributor.authorBrucet, Sandra
dc.contributor.authorBoix, Daniel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationQuintana, X., Egozcue, J. J., Martinez, O., Lopez, R., Gascon, S., Brucet, S., Boix, D. Update: A non-parametric method for the measurement of size diversity, with emphasis on data standardization. The measurement of the size evenness. "Limnology and oceanography-Methods", Juny 2016, vol. 14, núm. 6, p. 408-413.
dc.description.abstractA method for the measurement of the size diversity based on the classical Shannon–Wiener expression was proposed as a proxy of the shape of the size distribution. The summatory of probabilities of a discrete variable (such as species relative abundances) in the original Shannon–Wiener expression was substituted by an integral of the probability density function of a continuous variable (such as body size). Here, we propose an update of this method by including the measurement of the size e-evenness, just dividing the exponential of the size diversity by its possible maximum for a given size range. Assuming a domain of the size range of (0,8), for a given logarithmic mean ( math formula) and a logarithmic standard deviation math formula, the distribution with the highest diversity is the Log-Normal. The size e-evenness ranges between 0 and 1 because of the division by the maximum exponential diversity. Size e-evenness is useful to discriminate whether variations in size diversity are due to changes in the shape of the size distribution or caused by differences in size dispersion.
dc.format.extent6 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Medi ambient
dc.subject.lcshAquatic animals--Size
dc.titleUpdate: A non-parametric method for the measurement of size diversity, with emphasis on data standardization. The measurement of the size evenness
dc.subject.lemacAnimals aquàtics
dc.contributor.groupUniversitat Politècnica de Catalunya. COSDA-UPC - COmpositional and Spatial Data Analysis
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorQuintana, X.; Egozcue, J. J.; Martinez, O.; Lopez, R.; Gascon, S.; Brucet, S.; Boix, D.
local.citation.publicationNameLimnology and oceanography-Methods

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