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Título : Selection of an adequate functional diversity index for stream assessment based on biological traits of macroinvertebrates
Autor: Vazquez Zambrano, Raul Fernando
Sotomayor Valarezo, Gonzalo Patricio
Hampel , Henrietta
Palabras clave : GAMM
Functional diversity
Water quality
Streams
Random forest
Macroinvertebrates
Área de conocimiento FRASCATI amplio: 1. Ciencias Naturales y Exactas
Área de conocimiento FRASCATI detallado: 1.6.17 Biología Marina
Área de conocimiento FRASCATI específico: 1.6 Ciencias Biológicas
Área de conocimiento UNESCO amplio: 05 - Ciencias Físicas, Ciencias Naturales, Matemáticas y Estadísticas
ÁArea de conocimiento UNESCO detallado: 0511 - Biología
Área de conocimiento UNESCO específico: 051 - Ciencias Biológicas y Afines
Fecha de publicación : 2023
Volumen: Volumen 151, número 0
Fuente: Ecological Indicators
metadata.dc.identifier.doi: 10.1016/j.ecolind.2023.110335
Tipo: ARTÍCULO
Abstract: 
Functional diversity (FD) is useful for the evaluation of freshwater ecosystems. The FD of macroinvertebrate families for river water quality (WQ) assessment in the Paute River Basin (PRB), Ecuador, was investigated. Macroinvertebrate samples and data about 26 physical, chemical, microbiological and hydro-geomorphological variables were available. Literature-based biological traits were allocated as scores to the macroinvertebrates data through fuzzy coding. The Generalised Additive Mixed Model (GAMM) was used to assess the performance of six FD indices using the referred 26 WQ descriptive variables. The best performing GAMM led to selecting the index based on functional dendrograms including the species community pool (wFDc) as the most suitable to characterise FD in the PRB. The sub-basins of the PRB were grouped in three classes applying Average Linkage Clustering (ALC) and using wFDc. The Random Forest (RF) algorithm was used with a global efficiency of 89% to assess the ALC clusters consistency and pre-identify the significant WQ descriptive variables, explaining most of the FD variability. The Kruskal-Wallis test was then applied to refine the outcomes of the previous analysis. Twelve WQ descriptive variables were finally identified as the best discriminant predictors for FD, including the riparian vegetation, electric conductivity, dissolved oxygen, total hardness, faecal coliforms and pH. It is believed that the implemented approach successfully assessed the stream WQ status of the PRB upon selecting a suitable macroinvertebrate FD index; as such, it could be applied to other tropical basins for WQ assessment.
URI : http://dspace.ucuenca.edu.ec/handle/123456789/43219
https://www.scopus.com/record/display.uri?eid=2-s2.0-85158832332&origin=resultslist&sort=plf-f&src=s&sid=b12a1be46b0d584003ad5c8593f3982d&sot=b&sdt=b&s=TITLE-ABS-KEY%28Selection+of+an+adequate+functional+diversity+index+for+stream+assessment+based+on+biological+traits+of+macroinvertebrates%29&sl=137&sessionSearchId=b12a1be46b0d584003ad5c8593f3982d
URI Fuente: https://www.sciencedirect.com/journal/ecological-indicators
ISSN : 1470-160X
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