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Artículo

Site-occupancy modelling: A new approach to assess sensitivity of indicator species

Cortelezzi, AgustinaIcon ; Armendáriz, Laura Cecilia; Simoy, Maria VeronicaIcon ; Marinelli, Claudia Beatriz; Cepeda, Rosana Esther; Rodrigues Capitulo, AlbertoIcon ; Berkunsky, IgorIcon
Fecha de publicación: 08/2017
Editorial: Elsevier Science
Revista: Ecological Indicators
ISSN: 1470-160X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

One of the most challenging aspects of quality indices has been to compile reliable measures of the species’ sensitivity to various magnitudes and different kinds of ecosystem attributes. Occupancy modelling has become increasingly useful to ecologists because provides a flexible framework to estimate the habitat use as a function of site information. We modelled occupancy of oligochaete species from physicochemical variables of Pampean streams; and we described the change in occupancy along the gradient of each explanatory physicochemical variable. We proposed three phases (resistance, tolerance and extinction) to describe the sensitivity of the species in terms of occupancy. Seventeen of the 33 taxa of oligochaetes were enough abundant to be modeled. In eight species, we obtained a total of 11 different models including physicochemical covariates. Occupancy was explained by conductivity in four species, by dissolved oxygen in three species, and by nutrients in four species. The analysis of phases (resistance, tolerance and extinction) to describe the sensitivity of the species in terms of occupancy, offers a new methodology to understand how the species behave along a stressor gradient. Detailed descriptions of sensitivity of these local species, will helps ecologists to generate more accurate biotic indices.
Palabras clave: Habitat Quality , Invertebrates , Limnodrilus , Occupancy Models , Oligochaeta , Sensitivity , Streams
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/59159
URL: http://www.sciencedirect.com/science/article/pii/S1470160X17302169
DOI: http://dx.doi.org/10.1016/j.ecolind.2017.04.040
Colecciones
Articulos(CCT - TANDIL)
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Citación
Cortelezzi, Agustina; Armendáriz, Laura Cecilia; Simoy, Maria Veronica; Marinelli, Claudia Beatriz; Cepeda, Rosana Esther; et al.; Site-occupancy modelling: A new approach to assess sensitivity of indicator species; Elsevier Science; Ecological Indicators; 79; 8-2017; 191-195
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