Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)

Ombrotrophic peat bogs from Tierra del Fuego are characteristically raised, dome-shaped, fed by precipitation, and nutrient-poor. Their landscape pattern consists of a Sphagnum magellanicum matrix encompassing pools with different morphometric and trophic features. Within the framework of a 2-year l...

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Autores principales:	Mataloni, Maria Gabriela, Gonzalez Garraza, Gabriela Carolina, Vinocur, Alicia Liliana
Formato:	publishedVersion Artículo
Lenguaje:	Inglés
Publicado:	Springer 2015
Materias:	LANDSCAPE LIMNOLOGICAL CHARACTERIZATION PEAT BOG POOLS PHYTOPLANKTON STRUCTURE WETLANDLS CIENCIAS BIOLÓGICAS CIENCIAS NATURALES Y EXACTAS
Acceso en línea:	https://ri.unsam.edu.ar/handle/123456789/980
Aporte de:	Repositorio Institucional de la UNSAM de Universidad Nacional de General San Martín

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spelling	I78-R216-123456789-9802023-03-27T19:27:38Z Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina) Mataloni, Maria Gabriela Gonzalez Garraza, Gabriela Carolina Vinocur, Alicia Liliana LANDSCAPE LIMNOLOGICAL CHARACTERIZATION PEAT BOG POOLS PHYTOPLANKTON STRUCTURE WETLANDLS CIENCIAS BIOLÓGICAS CIENCIAS NATURALES Y EXACTAS info:eu-repo/semantics/publishedVersion Ombrotrophic peat bogs from Tierra del Fuego are characteristically raised, dome-shaped, fed by precipitation, and nutrient-poor. Their landscape pattern consists of a Sphagnum magellanicum matrix encompassing pools with different morphometric and trophic features. Within the framework of a 2-year limnological survey in five pools from Rancho Hambre peat bog, we analyzed phytoplankton communities under the hypothesis that taxonomic composition would show a spatial pattern driven by ultimately landscape-controlled environmental features such as pH and trophic status, while temperature and weather-dependent features would account for seasonal changes in abundance and structure. Among the 305 taxa recorded, most were Conjugatophyceae and Bacillariophyceae, and were strongly associated to circumneutral pH and minerotrophic conditions, though limited superficial connectivity among pools accounted for dissimilar taxonomic compositions. Despite such differences, phytoplankton of pools with similar morphometry and trophic status showed similar dominant and richest taxonomic groups undergoing paralell changes over time. Seasonal temperature fluctuations were modulated by pool size and modified not only abiotic properties but also phytoplankton abundance, with different taxa showing strong summer peaks in different pools. An interpretative model is proposed which will be tested as a tool for predicting community strategy and temporal variation patterns as responses to different environmental templates. Fil: Mataloni, Maria Gabriela. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. Laboratorio de Biodiversidad, Limnología y Conservación; Argentina. Fil: Gonzalez Garraza, Gabriela Carolina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. Laboratorio de Biodiversidad, Limnología y Conservación; Argentina. Fil: Vinocur, Alicia Liliana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. 2015-06 info:eu-repo/semantics/article info:ar-repo/semantics/artículo Mataloni, M. G.; Gonzalez Garraza, G. C.; Vinocur, A. L. (jun 2015). Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina); Springer; Hydrobiologia; 751 (1) 105-125 0018-8158 Hydrobiologia, 2015 751(1)_105-125 https://ri.unsam.edu.ar/handle/123456789/980 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5) application/pdf pp. 105-125 application/pdf Springer Hydrobiologia, 2015 751(1): 105-125 http://dx.doi.org/10.1007/s10750-015-2175-7
institution	Universidad Nacional de General San Martín
institution_str	I-78
repository_str	R-216
collection	Repositorio Institucional de la UNSAM
language	Inglés
topic	LANDSCAPE LIMNOLOGICAL CHARACTERIZATION PEAT BOG POOLS PHYTOPLANKTON STRUCTURE WETLANDLS CIENCIAS BIOLÓGICAS CIENCIAS NATURALES Y EXACTAS
spellingShingle	LANDSCAPE LIMNOLOGICAL CHARACTERIZATION PEAT BOG POOLS PHYTOPLANKTON STRUCTURE WETLANDLS CIENCIAS BIOLÓGICAS CIENCIAS NATURALES Y EXACTAS Mataloni, Maria Gabriela Gonzalez Garraza, Gabriela Carolina Vinocur, Alicia Liliana Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
topic_facet	LANDSCAPE LIMNOLOGICAL CHARACTERIZATION PEAT BOG POOLS PHYTOPLANKTON STRUCTURE WETLANDLS CIENCIAS BIOLÓGICAS CIENCIAS NATURALES Y EXACTAS
description	Ombrotrophic peat bogs from Tierra del Fuego are characteristically raised, dome-shaped, fed by precipitation, and nutrient-poor. Their landscape pattern consists of a Sphagnum magellanicum matrix encompassing pools with different morphometric and trophic features. Within the framework of a 2-year limnological survey in five pools from Rancho Hambre peat bog, we analyzed phytoplankton communities under the hypothesis that taxonomic composition would show a spatial pattern driven by ultimately landscape-controlled environmental features such as pH and trophic status, while temperature and weather-dependent features would account for seasonal changes in abundance and structure. Among the 305 taxa recorded, most were Conjugatophyceae and Bacillariophyceae, and were strongly associated to circumneutral pH and minerotrophic conditions, though limited superficial connectivity among pools accounted for dissimilar taxonomic compositions. Despite such differences, phytoplankton of pools with similar morphometry and trophic status showed similar dominant and richest taxonomic groups undergoing paralell changes over time. Seasonal temperature fluctuations were modulated by pool size and modified not only abiotic properties but also phytoplankton abundance, with different taxa showing strong summer peaks in different pools. An interpretative model is proposed which will be tested as a tool for predicting community strategy and temporal variation patterns as responses to different environmental templates.
format	publishedVersion Artículo Artículo
author	Mataloni, Maria Gabriela Gonzalez Garraza, Gabriela Carolina Vinocur, Alicia Liliana
author_facet	Mataloni, Maria Gabriela Gonzalez Garraza, Gabriela Carolina Vinocur, Alicia Liliana
author_sort	Mataloni, Maria Gabriela
title	Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
title_short	Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
title_full	Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
title_fullStr	Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
title_full_unstemmed	Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)
title_sort	landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (tierra del fuego, argentina)
publisher	Springer
publishDate	2015
url	https://ri.unsam.edu.ar/handle/123456789/980
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Landscape-driven environmental variability largely determines abiotic characteristics and phytoplankton patterns in peat bog pools (Tierra del Fuego, Argentina)

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