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Artículo

Modelling beta diversity of aquatic macroinvertebrates in High Andean wetlands

Nieto Peñalver, María CarolinaIcon ; Dos Santos, Daniel AndrésIcon ; Izquierdo, Andrea ElisaIcon ; Rodríguez, José S; Grau, Hector RicardoIcon
Fecha de publicación: 06/2017
Editorial: Cnr Ist Italiano Idrobiologia
Revista: Journal of Limnology
ISSN: 1129-5767
e-ISSN: 1723-8633
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Central Andean Highlands represent a singular environment characterized by various extreme conditions. Among them, peatbogs are exceptional marshy habitats scattered throughout this arid and harsh area. In an effort to understand the patterns of beta diversity, we sampled the benthic macroinvertebrates of thirteen peatbogs and related the biological distance with ecological distance using the GDM (Generalized Dissimilarity Modelling) approach. Variables analyzed were altitude, geographical distance, physical and chemical parameters of the water. A coefficient based on the ordering properties of count data, from the perspective of both sites and taxa, was used to measure the compositional similarity between samples. The most frequent taxa were: Hyallela, Simuliidae, Andesiops, Austrelmis, Podonominae, Protallagma, Trichocorixa, Orthocladiinae and Glossiphonidae. The highest altitudinal record ever for leeches is reported here. Altitude and conductivity contributed greatly to the single ecological predictor of beta diversity. Sampling points can be classified first by altitude (cutoff sets at 4200 m), which can be considered a surrogate of a regional factor (distinction between Puna and High Andean ecoregions) and then by conductivity (cutoff sets at 135 µS cm-1), which can be considered a proxy of a local factor (distinction between hyperfresh and more mineralized habitats). These results suggest a system of ecological filters acting on them.
Palabras clave: Benthos , Conductivity , Dissimilarity , High Andes , Peatbogs , Puna
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/64940
DOI: https://dx.doi.org/10.4081/jlimnol.2017.1600
URL: https://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2017.1600
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Articulos(IER)
Articulos de INSTITUTO DE ECOLOGIA REGIONAL
Citación
Nieto Peñalver, María Carolina; Dos Santos, Daniel Andrés; Izquierdo, Andrea Elisa; Rodríguez, José S; Grau, Hector Ricardo; Modelling beta diversity of aquatic macroinvertebrates in High Andean wetlands; Cnr Ist Italiano Idrobiologia; Journal of Limnology; 76; 3; 6-2017; 555-570
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