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dc.contributor.author
Moya, Nabor
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dc.contributor.author
Hugues, Robert M.
dc.contributor.author
Dominguez, Eduardo
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dc.contributor.author
Gibon, François Marie
dc.contributor.author
Goitia, Edgar
dc.contributor.author
Oberdorff, Thierry
dc.date.available
2019-03-19T00:04:24Z
dc.date.issued
2011-05
dc.identifier.citation
Moya, Nabor; Hugues, Robert M.; Dominguez, Eduardo; Gibon, François Marie; Goitia, Edgar; et al.; Macroinvertebrate-based multimetric predictive models for evaluating the human impact on biotic condition of Bolivian streams; Elsevier Science; Ecological Indicators; 11; 3; 5-2011; 840-847
dc.identifier.issn
1470-160X
dc.identifier.uri
http://hdl.handle.net/11336/71980
dc.description.abstract
We developed and validated a single multimetric index based on predictive models that could evaluate anthropogenic disturbances in streams of three disparate ecoregions of Bolivia. To do so, we examined 45 candidate metrics reflecting different aspects of macroinvertebrate assemblage structure and function gleaned from available literature and for their potential to indicate degradation. More importantly, we integrated functional trait metrics to improve the sensitivity of our index. To quantify possible deviation from reference conditions, we first established and validated statistical models describing metric responses to natural environmental differences in the absence of any significant anthropogenic disturbance. We considered that the residual distributions of these models described the response range of each metric, independently of natural environmental influence. After testing the sensitivity of these residuals to a gradient of anthropogenic disturbance, we retained eight metrics that were used in the final assemblage index, four metrics based on richness and composition and four metrics based on biological traits. Our index performed well in discriminating between reference and disturbed sites, giving a significant negative linear response to a gradient of physical and chemical anthropogenic disturbances. After employing a probability survey design and sampling a relatively small number of sites throughout all major ecoregions of Bolivia, we believe our methodology can be used to develop a monitoring tool to evaluate status and trends in biological condition for streams of the entire country despite its complex and heterogeneous geology and climate.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Anthropogenic Disturbances
dc.subject
Biological Traits
dc.subject
Macroinvertebrates
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Multimetric Index
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Neotropical Streams
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Macroinvertebrate-based multimetric predictive models for evaluating the human impact on biotic condition of Bolivian streams
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-15T20:01:18Z
dc.journal.volume
11
dc.journal.number
3
dc.journal.pagination
840-847
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Moya, Nabor. Universidad Mayor de San Simón; Bolivia. Universite Pierre et Marie Curie; Francia
dc.description.fil
Fil: Hugues, Robert M.. State University of Oregon; Estados Unidos
dc.description.fil
Fil: Dominguez, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto de Biodiversidad Neotropical. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Biodiversidad Neotropical. Instituto de Biodiversidad Neotropical; Argentina
dc.description.fil
Fil: Gibon, François Marie. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
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Fil: Goitia, Edgar. Universidad Mayor de San Simón; Bolivia
dc.description.fil
Fil: Oberdorff, Thierry. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
dc.journal.title
Ecological Indicators
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.ecolind.2010.10.012
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1470160X10001962
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