Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Sensitivity of Elmidae (Insecta: Coleoptera) to habitat disturbance and physicochemical water quality in lotic environments of the Colombian Andes
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Keywords

Riffle beetles
Lotic
Dissolved oxygen
Freshwater quality
Pollution
Escarabajos acuáticos
Lótico
Oxígeno disuelto
Calidad de agua
Contaminación

How to Cite

González Córdoba, M., Chará, J., Zúñiga, M. del C., Giraldo, L. P., & Ramírez, Y. P. (2020). Sensitivity of Elmidae (Insecta: Coleoptera) to habitat disturbance and physicochemical water quality in lotic environments of the Colombian Andes. Revista De Biología Tropical, 68(2), 601–622. https://doi.org/10.15517/rbt.v68i2.36702

Abstract

Introduction: Riffle beetles are aquatic organisms frequently associated with well-oxygenated clean running water; however, some genera of Elmidae can also be found in moderately polluted streams proving their tolerance to certain degree of habitat degradation. Objective: In order to determine the contamination sensitivity and tolerance of each genus and the main factors that influence the presence and composition of Elmidae in Colombia, Methods: 60 locations between 450 and 4000 masl were sampled in six localities of Colombia, mainly in the Andean Region. Collection was carried out with D and Surber nets. Physico-chemical, bacteriological and environmental quality information was recorded. With these data, Canonycal Correspondence Analysis and descriptions of occurrence intervals for each genus were made. Results: Twenty-two genera were found in the streams evaluated; which represents 85% of known national richness. The most important factors influencing the presence and composition of Elmidae were oxygen saturation, sediment deposition, suspended solids, epifaunal substrate availability and geographic location. Conclusions: Results are useful for classifying elmids according to their sensibility to changes in environmental conditions and habitat degradation, which is a first step to incorporate Elmidae in water quality biotic indexes.

https://doi.org/10.15517/rbt.v68i2.36702
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