Diversidad genérica de Trichoptera (Insecta) en dos microcuencas del Páramo Rabanal (Cundinamarca-Boyacá, Colombia)
Rev. biol. trop
;
62(supl.2): 97-110, abr. 2014. ilus, graf, mapas, tab
Artículo
en Español
| LILACS
| ID: lil-753759
ABSTRACT
Generic diversity of Trichoptera (Insecta) of Paramo Rabanal (Cundinamarca-Boyacá, Colombia). Trichopterans are considered an important and diverse biotic element in continental aquatic ecosystems. The purpose of this study was to evaluate the assemblages of the order Trichoptera in two subwatersheds with a gradient of disturbance. Four sampling events were conducted in two subwatersheds in the Eastern Mountain Range of the Colombian Andes. For the analysis we used rarefaction curves, Bray-Curtis Index and Partitioning Diversity and total richness and Shannons diversity as metrics. Although total richness was similar between both subwatersheds, abundance was always highest in streams within the conserved subwatershed. Each subwatershed was dominated by different genera, except Ochrotrichia, which was abundant at all sites. Alpha diversity was similar among streams in the conserved watershed, while a reduction in diversity potentially associated with the disturbance gradient was observed in streams of the disturbed subwatershed. Beta diversity (0D and ¹D) between subwatersheds and among conserved streams was similar, while in disturbed streams a similar gradient to that of alpha diversity was found. The similitude analysis clustered streams according to their conservation status. Differences found in trichopteran assemblages do confirm that the use of their attributes is adequate to assess the conservation status of stream ecosystems. Rev. Biol. Trop. 62 (Suppl. 2) 97-110. Epub 2014 April 01.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Variación Genética
/
Ecosistema
/
Insectos
Límite:
Animales
País/Región como asunto:
America del Sur
/
Colombia
Idioma:
Español
Revista:
Rev. biol. trop
Asunto de la revista:
Biologia
/
Medicina Tropical
Año:
2014
Tipo del documento:
Artículo
País de afiliación:
Colombia
Institución/País de afiliación:
Investigadora independiente/CO
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