Artículo
Anuran tadpoles inhabiting a fluoride-rich stream: diets and morphological indicators
Pollo, Favio Ezequiel
; Cibils Martina, Luciana
; Otero, Manuel Alejandro
; Baraquet, Mariana
; Grenat, Pablo Raúl
; Salas, Nancy Edith; Martino, Adolfo Ludovico
Fecha de publicación:
06/2019
Editorial:
Elsevier
Revista:
Heliyon
ISSN:
2405-8440
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We in situ assessed the influence of natural fluoride concentrations in lotic freshwater ecosystems on diet and morphology of Boana cordobae tadpoles. Two streams were sampled in Argentina: Los Vallecitos stream (LF-LV) and Los Cerros Negros stream (HF-CN) with low and high fluoride levels, respectively. We captured tadpoles of B. cordobae in each stream using nets. Body weight (BW), total length (TL) and body condition (BC) of tadpoles was registered. Food items were identified to genus level and assigned to functional traits. Tadpoles showed significant differences in TL between streams, with smaller individuals in HF-CN, while did not show differences in BW and BC. The diet of tadpoles consisted mostly of microalgae. In tadpoles from HF-CN stream the proportion of cyanobacteria was lower than tadpoles from LF-LV. In relation to functional traits, small algae, high profile and colonial algae were more abundant in HF-CN. Algae attached by pads showed a higher proportion in HF-CN diets and stalked algae were more abundant in LF-LV. The differences in TL and diet of tadpoles can be attributed to differences in algal community composition, with genera that are affected by high concentrations of natural fluoride; for example cyanobacteria. The low algal richness registered in HF-CN stream does not affect the physiological state of the tadpoles, possibly because of a higher algal density in HF-CN diets. However, in further studies it would be important to evaluate the population status of B. cordobae from the HF-CN, because a small body length of tadpoles could have consequences at the population level.
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Articulos (ICBIA)
Articulos de INSTITUTO DE CIENCIAS DE LA TIERRA, BIODIVERSIDAD Y AMBIENTE
Articulos de INSTITUTO DE CIENCIAS DE LA TIERRA, BIODIVERSIDAD Y AMBIENTE
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Pollo, Favio Ezequiel; Cibils Martina, Luciana; Otero, Manuel Alejandro; Baraquet, Mariana; Grenat, Pablo Raúl; et al.; Anuran tadpoles inhabiting a fluoride-rich stream: diets and morphological indicators; Elsevier; Heliyon; 5; 6; 6-2019; 1-8
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