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Diversidad alfa de líquenes en conglomerados de areniscas en la Reserva Provincial Los Colorados, La Rioja - Argentina

Authors: Pozo, Iván Alejandro; Canton, Norma Virginia; Jausoro, Mariana; Jaime, Gloria Susana; Rodriguez, Juan Manuel;

Diversidad alfa de líquenes en conglomerados de areniscas en la Reserva Provincial Los Colorados, La Rioja - Argentina

Abstract

La Reserva Provincial de Los Colorados está localizada en el Departamento Independencia, provincia de La Rioja. Geológicamente, es una formación del triásico superior, que presenta conglomerados de areniscas de color rojo conformando un paisaje atípico por la erosión eólica y fluvial. Se caracteriza por su aridez y clima cálido continental; la vegetación típica corresponde a la provincia fitogeográfica del Monte. Nuestro objetivo fue determinar la composición de la comunidad de líquenes saxícolas en La Reserva Los Colorados. Para ello, se realizaron tres transectas de 100 m, a lo largo de las cuales se establecieron 3 cuadrantes de 20 x 20 cm. Cada cuadrante se dividió en 100 cuadrículas de 2 cm x 2 cm. Se colectaron muestras para la identificación taxonómica en el Laboratorio de Alta Complejidad (LAC) de la Universidad Nacional de Chilecito (UNdeC) con técnicas de rutina. Se representa la frecuencia de líquenes en porcentajes por familia: Acarosporaceae (55,7%), Peltulaceae (19,7%), Physciaceae (15,9%), Parmeliaceae (4,6%), Candelariaceae (3,5%) y Teloschistaceae (0,6%). De éstas se identificaron 6 géneros, 10 especies y 6 morfoespecies. Acarosporaceae: Acarospora aff. schleicheri y A. xanthophana, además de seis morfoespecies, Candelariaceae: Candelariella vitellina, Peltulaceae: Peltula lobulata, Physciaceae: Physcia undulata, P. lopezii, P. crispa y P. tribacia, Parmeliaceae: Xanthoparmelia ferraroiana, Teloschistaceae: Rusavskia elegans. Peltula lobulata se menciona por primera vez para Argentina y se encontraron tres nuevas citas para la provincia: Acarospora aff. schleicheri, Physcia crispa y P. lopezii. Se amplía el área de distribución en la provincia de La Rioja de las especies: Acarospora xanthophana, Candelariella vitellina, Physcia tribacia, P. undulata, Xanthoparmelia ferraroiana y Rusavskia elegans.

The Provincial Reserve Los Colorados is located in the Independencia Department, province of La Rioja. Geologically, it is a formation of the Upper Triassic, which presents conglomerates of red sandstones forming an atypical landscape due to wind and fluvial erosion. Characterized by its aridity and warm continental climate, the typical vegetation corresponds to the phytogeographic province of Monte. Our objective was to determine the composition of the community of saxicolous lichens in the Reserve Los Colorados. For that, we carried out three transects of 100 m along which we established 3 quadrants of 20 x 20 cm. Each quadrant was divided into 100 grids of 2 cm x 2 cm. Samples were collected for the taxonomical identification in the High Complex Laboratory (LAC) of the National University of Chilecito (UNdeC) with routine techniques. The frequency of lichens is represented in percentages per family: Acarosporaceae (55,7%), Peltulaceae (19,7%), Physciaceae (15,9%), Parmeliaceae (4,6%), Candelariaceae (3,5%) and Teloschistaceae (0,6%). Of these, 6 genera, 10 species and 6 morphospecies were identified. Acarosporaceae: Acarospora aff. schleicheri and A. xanthophana, plus six morphospecies. Candelariaceae: Candelariella vitellina. Peltulaceae: Peltula lobulata. Physciaceae: Physcia undulata, P. lopezii, P. crispa and P. tribacia. Parmeliaceae: Xanthoparmelia ferraroiana. Teloschistaceae: Rusavskia elegans. Peltula lobulata is mentioned for the first time for Argentina and three species are new for the province: Acarospora aff. schleicheri, Physcia crispa and P. lopezii. The distribution range in the province of La Rioja is extended for the following species: Acarospora xanthophane, Candelariella vitellina, Physcia tribacia, P. undulata, Xanthoparmelia ferraroiana y Rusavskia elegans.

Fil: Rodriguez, Juan Manuel. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina

Fil: Pozo, Iván Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Chilecito; Argentina

Fil: Jausoro, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Chilecito; Argentina

Fil: Canton, Norma Virginia. Universidad Nacional de Chilecito; Argentina

Fil: Jaime, Gloria Susana. Universidad Nacional de Chilecito; Argentina

Country
Argentina
Keywords

Saxícolas, Frecuencia, Comunidad, Riqueza, https://purl.org/becyt/ford/1.6, Monte, https://purl.org/becyt/ford/1, Peltula lobulata

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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