Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat

The physical-chemical features of four temporary shallow ponds and their invertebrate fauna were studied during the summer months of three consecutive years. Invertebrate sampling was conducted by suction of pond water with a pump. From the physical-chemical point of view, the study ponds were helio...

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Autores principales:	Cepeda-Pizarro,Jorge, Pizarro-Araya,Jaime, Morales,María C.
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2015
Materias:	zooplankton macroinvertebrates temporary ponds arid Andes aquatic fauna lentic habitats
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400008
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spelling	oai:scielo:S0718-342920150004000082016-01-27Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitatCepeda-Pizarro,JorgePizarro-Araya,JaimeMorales,María C. zooplankton macroinvertebrates temporary ponds arid Andes aquatic fauna lentic habitats The physical-chemical features of four temporary shallow ponds and their invertebrate fauna were studied during the summer months of three consecutive years. Invertebrate sampling was conducted by suction of pond water with a pump. From the physical-chemical point of view, the study ponds were heliotopic, mesotrophic and mesopoikilohaline microlimnotopes. Their thermal stratification is monomic-tic, with few degrees of difference in water temperature between surface and bottom. The chemical characteristics of pond water were in between those of freshwater and truly saline ponds. The study ponds exhibited high content of phosphate, Ca, and sulfate content, followed by fluoride, Fe, K, Mg, Cl, nitrate, and total suspended solids. They were low in bicarbonate and CN content. Apparently, the geochemical properties of the surrounding mountains play a role in the hydrochemistry of these water bodies. Total abundance per taxon was mostly low. We recorded five higher taxa. Cladocerans (e.g., Alona spp.), followed by dipterans (e.g., chironomid flies), and copepods (e.g., cyclopoids and harpactoids) were the dominant groups. Less abundant groups were amphipods (e.g., Hyperia spp.), and ostracods (e.g., Cyprididae). Some of the taxa reported in this work are recorded for first time in this type of habitat. Nevertheless, given the habitat characteristics, studies at finer taxonomic resolution are needed to search for site-specific genera or species. We obtained lower taxono-mic richness compared to lotic systems found in the area. This result may be due to differences in the dynamics of abiotic conditions observed between the two habitats. The variability in abundance among ponds was high for most of the recorded taxa. This variability may be a reflection of the general condition of the wet pasture we studied, suggesting that the ponds are important sources of the high biodiversity found in these landscape units. As the wet pastures of the area are networked, also contribute to biodiversity of the entire mountain system. From this, it is clear that conservation strategies of Andean wet pastures need to include these small landscape units.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.33 n.4 20152015-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400008en10.4067/S0718-34292015000400008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	zooplankton macroinvertebrates temporary ponds arid Andes aquatic fauna lentic habitats
spellingShingle	zooplankton macroinvertebrates temporary ponds arid Andes aquatic fauna lentic habitats Cepeda-Pizarro,Jorge Pizarro-Araya,Jaime Morales,María C. Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
description	The physical-chemical features of four temporary shallow ponds and their invertebrate fauna were studied during the summer months of three consecutive years. Invertebrate sampling was conducted by suction of pond water with a pump. From the physical-chemical point of view, the study ponds were heliotopic, mesotrophic and mesopoikilohaline microlimnotopes. Their thermal stratification is monomic-tic, with few degrees of difference in water temperature between surface and bottom. The chemical characteristics of pond water were in between those of freshwater and truly saline ponds. The study ponds exhibited high content of phosphate, Ca, and sulfate content, followed by fluoride, Fe, K, Mg, Cl, nitrate, and total suspended solids. They were low in bicarbonate and CN content. Apparently, the geochemical properties of the surrounding mountains play a role in the hydrochemistry of these water bodies. Total abundance per taxon was mostly low. We recorded five higher taxa. Cladocerans (e.g., Alona spp.), followed by dipterans (e.g., chironomid flies), and copepods (e.g., cyclopoids and harpactoids) were the dominant groups. Less abundant groups were amphipods (e.g., Hyperia spp.), and ostracods (e.g., Cyprididae). Some of the taxa reported in this work are recorded for first time in this type of habitat. Nevertheless, given the habitat characteristics, studies at finer taxonomic resolution are needed to search for site-specific genera or species. We obtained lower taxono-mic richness compared to lotic systems found in the area. This result may be due to differences in the dynamics of abiotic conditions observed between the two habitats. The variability in abundance among ponds was high for most of the recorded taxa. This variability may be a reflection of the general condition of the wet pasture we studied, suggesting that the ponds are important sources of the high biodiversity found in these landscape units. As the wet pastures of the area are networked, also contribute to biodiversity of the entire mountain system. From this, it is clear that conservation strategies of Andean wet pastures need to include these small landscape units.
author	Cepeda-Pizarro,Jorge Pizarro-Araya,Jaime Morales,María C.
author_facet	Cepeda-Pizarro,Jorge Pizarro-Araya,Jaime Morales,María C.
author_sort	Cepeda-Pizarro,Jorge
title	Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
title_short	Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
title_full	Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
title_fullStr	Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
title_full_unstemmed	Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat
title_sort	invertebrates inhabiting temporary ponds found in the tambo-puquíos wet pasture (andes of north-central chile), and the physicochemical characteristics of their habitat
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400008
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Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat

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