Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.educacionsuperior.gob.ec/handle/28000/1330
metadata.dc.type: article
Título : Tolerance values of benthic macroinvertebrates for stream biomonitoring: assessment of assumptions underlying scoring systems worldwide
Autor : Chang, Feng-Hsun
Lawrence, Justin
Ríos Touma, Blanca
Resh, Vincent
metadata.dc.contributor.advisor: Resh, Vincent
Rosenberg, D.
Carter, J.
Fecha de publicación : 2013
Editorial : Berkeley : University of California
Citación : Chang,Feng-Hsun; Lawrence, Justin; Ríos Touma, Blanca; Resh, Vincent (2013). Tolerance values of benthic macroinvertebrates for stream biomonitoring: assessment of assumptions underlying scoring systems worldwide. Ciencias de la Tierra y Medioambientales. University of California. Berkeley. 17 p.
Resumen : Tolerance values (TVs) based on benthic macroinvertebrates are one of the most widely used tools for monitoring the biological impacts of water pollution, particularly in streams and rivers. We compiled TVs of benthic macroinvertebrates from 29 regions around the world to test 11 basic assumptions about pollution tolerance, that: (1) Arthropoda are <tolerant than non-Arthropoda; (2) Insecta < non- Insecta; (3) non-Oligochaeta < Oligochaeta; (4) other macroinvertebrates < Oligochaeta + Chironomidae; (5)other macroinvertebrate taxa < Isopoda + Gastropoda + Hirudinea; (6) Ephemeroptera + Plecoptera + Trichoptera (EPT) < Odonata + Coleoptera + Heteroptera (OCH); (7) EPT < non-EPT insects; (8)Diptera < Insecta; (9) Bivalvia < Gastropoda; (10)Baetidae < other Ephemeroptera; and (11) Hydropsychidae < other Trichoptera. We found that the first eight of these 11 assumptions were supported despite regional variability. In addition, we examined the effect of Best Professional Judgment (BPJ) and nonindependence of TVs among countries by performing all analyses using subsets of the original dataset. These subsets included a group based on those systems using TVs that were derived from techniques other than BPJ, and groups based on methods used for TV assignment. The results obtained from these subsets and the entire dataset are similar.We also made seven a priori hypotheses about the regional similarity of TVs based on geography. Only one of these was supported. Development of TVs and the reporting of how they are assigned need to be more rigorous and be better described.
Descripción : Para obtener el trabajo completo con fines educativos, por favor contactarse directamente con la autora: briostouma@gmail.com.
URI : http://repositorio.educacionsuperior.gob.ec//handle/28000/1330
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